{
 "version": "2.2",
 "instance": {
  "nwbi-20240630.htm": {
   "nsprefix": "nwbi",
   "nsuri": "http://www.northwestsavingsbank.com/20240630",
   "dts": {
    "inline": {
     "local": [
      "nwbi-20240630.htm"
     ]
    },
    "schema": {
     "local": [
      "nwbi-20240630.xsd"
     ],
     "remote": [
      "http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xl-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xlink-2003-12-31.xsd",
      "http://www.xbrl.org/2005/xbrldt-2005.xsd",
      "http://www.xbrl.org/2006/ref-2006-02-27.xsd",
      "http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd",
      "http://www.xbrl.org/lrr/role/net-2009-12-16.xsd",
      "http://www.xbrl.org/lrr/role/reference-2009-12-16.xsd",
      "https://www.xbrl.org/2020/extensible-enumerations-2.0.xsd",
      "https://www.xbrl.org/dtr/type/2020-01-21/types.xsd",
      "https://www.xbrl.org/dtr/type/2022-03-31/types.xsd",
      "https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd",
      "https://xbrl.fasb.org/srt/2024/elts/srt-roles-2024.xsd",
      "https://xbrl.fasb.org/srt/2024/elts/srt-types-2024.xsd",
      "https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd",
      "https://xbrl.fasb.org/us-gaap/2024/elts/us-roles-2024.xsd",
      "https://xbrl.fasb.org/us-gaap/2024/elts/us-types-2024.xsd",
      "https://xbrl.sec.gov/country/2024/country-2024.xsd",
      "https://xbrl.sec.gov/dei/2024/dei-2024.xsd",
      "https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd",
      "https://xbrl.sec.gov/stpr/2024/stpr-2024.xsd"
     ]
    },
    "calculationLink": {
     "local": [
      "nwbi-20240630_cal.xml"
     ]
    },
    "definitionLink": {
     "local": [
      "nwbi-20240630_def.xml"
     ]
    },
    "labelLink": {
     "local": [
      "nwbi-20240630_lab.xml"
     ]
    },
    "presentationLink": {
     "local": [
      "nwbi-20240630_pre.xml"
     ]
    }
   },
   "keyStandard": 332,
   "keyCustom": 59,
   "axisStandard": 27,
   "axisCustom": 2,
   "memberStandard": 78,
   "memberCustom": 41,
   "hidden": {
    "total": 11,
    "http://xbrl.sec.gov/dei/2024": 5,
    "http://fasb.org/us-gaap/2024": 6
   },
   "contextCount": 981,
   "entityCount": 1,
   "segmentCount": 125,
   "elementCount": 776,
   "unitCount": 9,
   "baseTaxonomies": {
    "http://fasb.org/us-gaap/2024": 3078,
    "http://xbrl.sec.gov/dei/2024": 30,
    "http://xbrl.sec.gov/ecd/2024": 4
   },
   "report": {
    "R1": {
     "role": "http://www.northwestsavingsbank.com/role/Cover",
     "longName": "0000001 - Document - Cover",
     "shortName": "Cover",
     "isDefault": "true",
     "groupType": "document",
     "subGroupType": "",
     "menuCat": "Cover",
     "order": "1",
     "firstAnchor": {
      "contextRef": "c-1",
      "name": "dei:DocumentType",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-1",
      "name": "dei:DocumentType",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R2": {
     "role": "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited",
     "longName": "9952151 - Statement - CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Unaudited)",
     "shortName": "CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Unaudited)",
     "isDefault": "false",
     "groupType": "statement",
     "subGroupType": "",
     "menuCat": "Statements",
     "order": "2",
     "firstAnchor": {
      "contextRef": "c-3",
      "name": "us-gaap:CashAndDueFromBanks",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-3",
      "name": "us-gaap:CashAndDueFromBanks",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R3": {
     "role": "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnauditedParenthetical",
     "longName": "9952152 - Statement - CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Unaudited) (Parenthetical)",
     "shortName": "CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Unaudited) (Parenthetical)",
     "isDefault": "false",
     "groupType": "statement",
     "subGroupType": "parenthetical",
     "menuCat": "Statements",
     "order": "3",
     "firstAnchor": {
      "contextRef": "c-3",
      "name": "us-gaap:DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true
     },
     "uniqueAnchor": {
      "contextRef": "c-3",
      "name": "us-gaap:PreferredStockParOrStatedValuePerShare",
      "unitRef": "usdPerShare",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "INF",
      "ancestors": [
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "unique": true
     }
    },
    "R4": {
     "role": "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited",
     "longName": "9952153 - Statement - CONSOLIDATED STATEMENTS OF INCOME (Unaudited)",
     "shortName": "CONSOLIDATED STATEMENTS OF INCOME (Unaudited)",
     "isDefault": "false",
     "groupType": "statement",
     "subGroupType": "",
     "menuCat": "Statements",
     "order": "4",
     "firstAnchor": {
      "contextRef": "c-5",
      "name": "us-gaap:InterestAndFeeIncomeLoansAndLeases",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-5",
      "name": "us-gaap:InterestAndFeeIncomeLoansAndLeases",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R5": {
     "role": "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnaudited",
     "longName": "9952154 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited)",
     "shortName": "CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited)",
     "isDefault": "false",
     "groupType": "statement",
     "subGroupType": "",
     "menuCat": "Statements",
     "order": "5",
     "firstAnchor": {
      "contextRef": "c-5",
      "name": "us-gaap:NetIncomeLoss",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true
     },
     "uniqueAnchor": {
      "contextRef": "c-5",
      "name": "us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "unique": true
     }
    },
    "R6": {
     "role": "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnauditedParenthetical",
     "longName": "9952155 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) (Parenthetical)",
     "shortName": "CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) (Parenthetical)",
     "isDefault": "false",
     "groupType": "statement",
     "subGroupType": "parenthetical",
     "menuCat": "Statements",
     "order": "6",
     "firstAnchor": {
      "contextRef": "c-5",
      "name": "us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "div",
       "us-gaap:ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true
     },
     "uniqueAnchor": {
      "contextRef": "c-5",
      "name": "us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "unique": true
     }
    },
    "R7": {
     "role": "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITYUnaudited",
     "longName": "9952156 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Unaudited)",
     "shortName": "CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Unaudited)",
     "isDefault": "false",
     "groupType": "statement",
     "subGroupType": "",
     "menuCat": "Statements",
     "order": "7",
     "firstAnchor": {
      "contextRef": "c-43",
      "name": "us-gaap:CommonStockSharesOutstanding",
      "unitRef": "shares",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "INF",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-43",
      "name": "us-gaap:CommonStockSharesOutstanding",
      "unitRef": "shares",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "INF",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R8": {
     "role": "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITYUnauditedParenthetical",
     "longName": "9952157 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Unaudited) (Parenthetical)",
     "shortName": "CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Unaudited) (Parenthetical)",
     "isDefault": "false",
     "groupType": "statement",
     "subGroupType": "parenthetical",
     "menuCat": "Statements",
     "order": "8",
     "firstAnchor": {
      "contextRef": "c-5",
      "name": "us-gaap:OtherComprehensiveIncomeLossTaxPortionAttributableToParent1",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-5",
      "name": "us-gaap:OtherComprehensiveIncomeLossTaxPortionAttributableToParent1",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R9": {
     "role": "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited",
     "longName": "9952158 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)",
     "shortName": "CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)",
     "isDefault": "false",
     "groupType": "statement",
     "subGroupType": "",
     "menuCat": "Statements",
     "order": "9",
     "firstAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:NetIncomeLoss",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true
     },
     "uniqueAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:ProvisionForLoanLeaseAndOtherLosses",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "unique": true
     }
    },
    "R10": {
     "role": "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnauditedParenthetical",
     "longName": "9952159 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (Parenthetical)",
     "shortName": "CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (Parenthetical)",
     "isDefault": "false",
     "groupType": "statement",
     "subGroupType": "parenthetical",
     "menuCat": "Statements",
     "order": "10",
     "firstAnchor": {
      "contextRef": "c-1",
      "name": "nwbi:CashPaidForInterestOnDeposits",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-1",
      "name": "nwbi:CashPaidForInterestOnDeposits",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R11": {
     "role": "http://www.northwestsavingsbank.com/role/BasisofPresentationandInformationalDisclosures",
     "longName": "9952160 - Disclosure - Basis of Presentation and Informational Disclosures",
     "shortName": "Basis of Presentation and Informational Disclosures",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "",
     "menuCat": "Notes",
     "order": "11",
     "firstAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R12": {
     "role": "http://www.northwestsavingsbank.com/role/MarketableSecurities",
     "longName": "9952161 - Disclosure - Marketable Securities",
     "shortName": "Marketable Securities",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "",
     "menuCat": "Notes",
     "order": "12",
     "firstAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R13": {
     "role": "http://www.northwestsavingsbank.com/role/LoansReceivable",
     "longName": "9952162 - Disclosure - Loans Receivable",
     "shortName": "Loans Receivable",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "",
     "menuCat": "Notes",
     "order": "13",
     "firstAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:LoansNotesTradeAndOtherReceivablesDisclosureTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:LoansNotesTradeAndOtherReceivablesDisclosureTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R14": {
     "role": "http://www.northwestsavingsbank.com/role/GoodwillandOtherIntangibleAssets",
     "longName": "9952163 - Disclosure - Goodwill and Other Intangible Assets",
     "shortName": "Goodwill and Other Intangible Assets",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "",
     "menuCat": "Notes",
     "order": "14",
     "firstAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:GoodwillAndIntangibleAssetsDisclosureTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:GoodwillAndIntangibleAssetsDisclosureTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R15": {
     "role": "http://www.northwestsavingsbank.com/role/BorrowedFunds",
     "longName": "9952164 - Disclosure - Borrowed Funds",
     "shortName": "Borrowed Funds",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "",
     "menuCat": "Notes",
     "order": "15",
     "firstAnchor": {
      "contextRef": "c-1",
      "name": "nwbi:BorrowedFundsTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-1",
      "name": "nwbi:BorrowedFundsTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R16": {
     "role": "http://www.northwestsavingsbank.com/role/Guarantees",
     "longName": "9952165 - Disclosure - Guarantees",
     "shortName": "Guarantees",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "",
     "menuCat": "Notes",
     "order": "16",
     "firstAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:GuaranteesTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:GuaranteesTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R17": {
     "role": "http://www.northwestsavingsbank.com/role/EarningsPerShare",
     "longName": "9952166 - Disclosure - Earnings Per Share",
     "shortName": "Earnings Per Share",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "",
     "menuCat": "Notes",
     "order": "17",
     "firstAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:EarningsPerShareTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:EarningsPerShareTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R18": {
     "role": "http://www.northwestsavingsbank.com/role/PensionandOtherPostRetirementBenefits",
     "longName": "9952167 - Disclosure - Pension and Other Post-Retirement Benefits",
     "shortName": "Pension and Other Post-Retirement Benefits",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "",
     "menuCat": "Notes",
     "order": "18",
     "firstAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:PensionAndOtherPostretirementBenefitsDisclosureTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:PensionAndOtherPostretirementBenefitsDisclosureTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R19": {
     "role": "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstruments",
     "longName": "9952168 - Disclosure - Disclosures About Fair Value of Financial Instruments",
     "shortName": "Disclosures About Fair Value of Financial Instruments",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "",
     "menuCat": "Notes",
     "order": "19",
     "firstAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:FairValueDisclosuresTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:FairValueDisclosuresTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R20": {
     "role": "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstruments",
     "longName": "9952169 - Disclosure - Derivative Financial Instruments",
     "shortName": "Derivative Financial Instruments",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "",
     "menuCat": "Notes",
     "order": "20",
     "firstAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R21": {
     "role": "http://www.northwestsavingsbank.com/role/LegalProceedings",
     "longName": "9952170 - Disclosure - Legal Proceedings",
     "shortName": "Legal Proceedings",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "",
     "menuCat": "Notes",
     "order": "21",
     "firstAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:LegalMattersAndContingenciesTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:LegalMattersAndContingenciesTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R22": {
     "role": "http://www.northwestsavingsbank.com/role/ChangesinAccumulatedOtherComprehensiveIncome",
     "longName": "9952171 - Disclosure - Changes in Accumulated Other Comprehensive Income",
     "shortName": "Changes in Accumulated Other Comprehensive Income",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "",
     "menuCat": "Notes",
     "order": "22",
     "firstAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:ComprehensiveIncomeNoteTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:ComprehensiveIncomeNoteTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R23": {
     "role": "http://xbrl.sec.gov/ecd/role/PvpDisclosure",
     "longName": "995410 - Disclosure - Pay vs Performance Disclosure",
     "shortName": "Pay vs Performance Disclosure",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "",
     "menuCat": "Notes",
     "order": "23",
     "firstAnchor": {
      "contextRef": "c-5",
      "name": "us-gaap:NetIncomeLoss",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true
     },
     "uniqueAnchor": null
    },
    "R24": {
     "role": "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements",
     "longName": "995445 - Disclosure - Insider Trading Arrangements",
     "shortName": "Insider Trading Arrangements",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "",
     "menuCat": "Notes",
     "order": "24",
     "firstAnchor": {
      "contextRef": "c-5",
      "name": "ecd:Rule10b51ArrAdoptedFlag",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "ecd:NonRule10b51ArrAdoptedFlag",
       "span",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-5",
      "name": "ecd:Rule10b51ArrAdoptedFlag",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "ecd:NonRule10b51ArrAdoptedFlag",
       "span",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R25": {
     "role": "http://www.northwestsavingsbank.com/role/BasisofPresentationandInformationalDisclosuresPolicies",
     "longName": "9954471 - Disclosure - Basis of Presentation and Informational Disclosures (Policies)",
     "shortName": "Basis of Presentation and Informational Disclosures (Policies)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "policies",
     "menuCat": "Policies",
     "order": "25",
     "firstAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:BasisOfAccountingPolicyPolicyTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:BasisOfAccountingPolicyPolicyTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R26": {
     "role": "http://www.northwestsavingsbank.com/role/MarketableSecuritiesTables",
     "longName": "9954472 - Disclosure - Marketable Securities (Tables)",
     "shortName": "Marketable Securities (Tables)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "tables",
     "menuCat": "Tables",
     "order": "26",
     "firstAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R27": {
     "role": "http://www.northwestsavingsbank.com/role/LoansReceivableTables",
     "longName": "9954473 - Disclosure - Loans Receivable (Tables)",
     "shortName": "Loans Receivable (Tables)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "tables",
     "menuCat": "Tables",
     "order": "27",
     "firstAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R28": {
     "role": "http://www.northwestsavingsbank.com/role/GoodwillandOtherIntangibleAssetsTables",
     "longName": "9954474 - Disclosure - Goodwill and Other Intangible Assets (Tables)",
     "shortName": "Goodwill and Other Intangible Assets (Tables)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "tables",
     "menuCat": "Tables",
     "order": "28",
     "firstAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R29": {
     "role": "http://www.northwestsavingsbank.com/role/BorrowedFundsTables",
     "longName": "9954475 - Disclosure - Borrowed Funds (Tables)",
     "shortName": "Borrowed Funds (Tables)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "tables",
     "menuCat": "Tables",
     "order": "29",
     "firstAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:ScheduleOfDebtTableTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:ScheduleOfDebtTableTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R30": {
     "role": "http://www.northwestsavingsbank.com/role/EarningsPerShareTables",
     "longName": "9954476 - Disclosure - Earnings Per Share (Tables)",
     "shortName": "Earnings Per Share (Tables)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "tables",
     "menuCat": "Tables",
     "order": "30",
     "firstAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R31": {
     "role": "http://www.northwestsavingsbank.com/role/PensionandOtherPostRetirementBenefitsTables",
     "longName": "9954477 - Disclosure - Pension and Other Post-Retirement Benefits (Tables)",
     "shortName": "Pension and Other Post-Retirement Benefits (Tables)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "tables",
     "menuCat": "Tables",
     "order": "31",
     "firstAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:ScheduleOfNetBenefitCostsTableTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:ScheduleOfNetBenefitCostsTableTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R32": {
     "role": "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsTables",
     "longName": "9954478 - Disclosure - Disclosures About Fair Value of Financial Instruments (Tables)",
     "shortName": "Disclosures About Fair Value of Financial Instruments (Tables)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "tables",
     "menuCat": "Tables",
     "order": "32",
     "firstAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:FairValueByBalanceSheetGroupingTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:FairValueByBalanceSheetGroupingTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R33": {
     "role": "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsTables",
     "longName": "9954479 - Disclosure - Derivative Financial Instruments (Tables)",
     "shortName": "Derivative Financial Instruments (Tables)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "tables",
     "menuCat": "Tables",
     "order": "33",
     "firstAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:ScheduleOfOtherDerivativesNotDesignatedAsHedgingInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:ScheduleOfOtherDerivativesNotDesignatedAsHedgingInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R34": {
     "role": "http://www.northwestsavingsbank.com/role/ChangesinAccumulatedOtherComprehensiveIncomeTables",
     "longName": "9954480 - Disclosure - Changes in Accumulated Other Comprehensive Income (Tables)",
     "shortName": "Changes in Accumulated Other Comprehensive Income (Tables)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "tables",
     "menuCat": "Tables",
     "order": "34",
     "firstAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-1",
      "name": "us-gaap:ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock",
      "unitRef": null,
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": null,
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R35": {
     "role": "http://www.northwestsavingsbank.com/role/BasisofPresentationandInformationalDisclosuresDetails",
     "longName": "9954481 - Disclosure - Basis of Presentation and Informational Disclosures (Details)",
     "shortName": "Basis of Presentation and Informational Disclosures (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "35",
     "firstAnchor": {
      "contextRef": "c-3",
      "name": "nwbi:NumberOfBankingLocations",
      "unitRef": "bank_location",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "INF",
      "ancestors": [
       "span",
       "div",
       "us-gaap:BasisOfAccountingPolicyPolicyTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-3",
      "name": "nwbi:NumberOfBankingLocations",
      "unitRef": "bank_location",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "INF",
      "ancestors": [
       "span",
       "div",
       "us-gaap:BasisOfAccountingPolicyPolicyTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R36": {
     "role": "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails",
     "longName": "9954482 - Disclosure - Marketable Securities - Available For Sale (Details)",
     "shortName": "Marketable Securities - Available For Sale (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "36",
     "firstAnchor": {
      "contextRef": "c-3",
      "name": "us-gaap:DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true
     },
     "uniqueAnchor": {
      "contextRef": "c-3",
      "name": "us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "unique": true
     }
    },
    "R37": {
     "role": "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails",
     "longName": "9954483 - Disclosure - Marketable Securities - Held To Maturity (Details)",
     "shortName": "Marketable Securities - Held To Maturity (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "37",
     "firstAnchor": {
      "contextRef": "c-3",
      "name": "us-gaap:DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true
     },
     "uniqueAnchor": {
      "contextRef": "c-3",
      "name": "us-gaap:HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:HeldToMaturitySecuritiesTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "unique": true
     }
    },
    "R38": {
     "role": "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableforsalebyContractualMaturityDetails",
     "longName": "9954484 - Disclosure - Marketable Securities - Available-for-sale, by Contractual Maturity (Details)",
     "shortName": "Marketable Securities - Available-for-sale, by Contractual Maturity (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "38",
     "firstAnchor": {
      "contextRef": "c-63",
      "name": "us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "nwbi:MortgageBackedSecuritiesTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-63",
      "name": "us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "nwbi:MortgageBackedSecuritiesTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R39": {
     "role": "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturitybyContractualMaturityDetails",
     "longName": "9954485 - Disclosure - Marketable Securities - Held To Maturity, by Contractual Maturity (Details)",
     "shortName": "Marketable Securities - Held To Maturity, by Contractual Maturity (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "39",
     "firstAnchor": {
      "contextRef": "c-63",
      "name": "us-gaap:HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "nwbi:MortgageBackedSecuritiesTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-63",
      "name": "us-gaap:HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "nwbi:MortgageBackedSecuritiesTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R40": {
     "role": "http://www.northwestsavingsbank.com/role/MarketableSecuritiesFairValueofandGrossUnrealizedLossesonInvestmentSecuritiesDetails",
     "longName": "9954486 - Disclosure - Marketable Securities - Fair Value of and Gross Unrealized Losses on Investment Securities (Details)",
     "shortName": "Marketable Securities - Fair Value of and Gross Unrealized Losses on Investment Securities (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "40",
     "firstAnchor": {
      "contextRef": "c-3",
      "name": "nwbi:HeldToMaturityAndAvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:UnrealizedGainLossOnInvestmentsTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-3",
      "name": "nwbi:HeldToMaturityAndAvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:UnrealizedGainLossOnInvestmentsTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R41": {
     "role": "http://www.northwestsavingsbank.com/role/MarketableSecuritiesCreditQualityofHeldToMaturitySecuritiesDetails",
     "longName": "9954487 - Disclosure - Marketable Securities - Credit Quality of Held To Maturity Securities (Details)",
     "shortName": "Marketable Securities - Credit Quality of Held To Maturity Securities (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "41",
     "firstAnchor": {
      "contextRef": "c-3",
      "name": "us-gaap:DebtSecuritiesHeldToMaturityExcludingAccruedInterestBeforeAllowanceForCreditLoss",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:DebtSecuritiesHeldToMaturityCreditQualityIndicatorTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-3",
      "name": "us-gaap:DebtSecuritiesHeldToMaturityExcludingAccruedInterestBeforeAllowanceForCreditLoss",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:DebtSecuritiesHeldToMaturityCreditQualityIndicatorTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R42": {
     "role": "http://www.northwestsavingsbank.com/role/LoansReceivableOriginatedandAcquiredLoansDetails",
     "longName": "9954488 - Disclosure - Loans Receivable - Originated and Acquired Loans (Details)",
     "shortName": "Loans Receivable - Originated and Acquired Loans (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "42",
     "firstAnchor": {
      "contextRef": "c-3",
      "name": "us-gaap:FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "nwbi:ScheduleOfLoansByPortfolioSegmentAndClassOfFinancingReceivableTableTextBlock",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true
     },
     "uniqueAnchor": {
      "contextRef": "c-3",
      "name": "us-gaap:FinancingReceivableUnamortizedLoanCommitmentOriginationFeeAndPremiumDiscount",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-6",
      "ancestors": [
       "span",
       "ix:continuation",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "unique": true
     }
    },
    "R43": {
     "role": "http://www.northwestsavingsbank.com/role/LoansReceivableChangesintheAllowanceforLossesonLoansReceivableDetails",
     "longName": "9954489 - Disclosure - Loans Receivable - Changes in the Allowance for Losses on Loans Receivable (Details)",
     "shortName": "Loans Receivable - Changes in the Allowance for Losses on Loans Receivable (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "43",
     "firstAnchor": {
      "contextRef": "c-12",
      "name": "us-gaap:FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "us-gaap:AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true
     },
     "uniqueAnchor": {
      "contextRef": "c-5",
      "name": "us-gaap:FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "us-gaap:AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "unique": true
     }
    },
    "R44": {
     "role": "http://www.northwestsavingsbank.com/role/LoansReceivableLoanPortfoliobyPortfolioSegmentandbyClassofFinancingReceivableDetails",
     "longName": "9954490 - Disclosure - Loans Receivable - Loan Portfolio by Portfolio Segment and by Class of Financing Receivable (Details)",
     "shortName": "Loans Receivable - Loan Portfolio by Portfolio Segment and by Class of Financing Receivable (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "44",
     "firstAnchor": {
      "contextRef": "c-3",
      "name": "us-gaap:FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "nwbi:ScheduleOfLoansByPortfolioSegmentAndClassOfFinancingReceivableTableTextBlock",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true
     },
     "uniqueAnchor": {
      "contextRef": "c-3",
      "name": "nwbi:FinancingReceivableRecordedInvestment90DaysOrMorePastMaturityAndStillAccruing",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "nwbi:ScheduleOfLoansByPortfolioSegmentAndClassOfFinancingReceivableTableTextBlock",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "unique": true
     }
    },
    "R45": {
     "role": "http://www.northwestsavingsbank.com/role/LoansReceivableCompositionofImpairedLoansbyPortfolioSegmentandClassofFinancingReceivableDetails",
     "longName": "9954491 - Disclosure - Loans Receivable - Composition of Impaired Loans by Portfolio Segment and Class of Financing Receivable (Details)",
     "shortName": "Loans Receivable - Composition of Impaired Loans by Portfolio Segment and Class of Financing Receivable (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "45",
     "firstAnchor": {
      "contextRef": "c-4",
      "name": "nwbi:FinancingReceivableNonaccrualIncludingNonaccrualWithNoAllowance",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "nwbi:ScheduleOfLoansByPortfolioSegmentAndClassOfFinancingReceivableTableTextBlock",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true
     },
     "uniqueAnchor": {
      "contextRef": "c-4",
      "name": "us-gaap:FinancingReceivableExcludingAccruedInterestNonaccrual",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "unique": true
     }
    },
    "R46": {
     "role": "http://www.northwestsavingsbank.com/role/LoansReceivableAmortizedCostBasisofLoansModifiedDetails",
     "longName": "9954492 - Disclosure - Loans Receivable - Amortized Cost Basis of Loans Modified (Details)",
     "shortName": "Loans Receivable - Amortized Cost Basis of Loans Modified (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "46",
     "firstAnchor": {
      "contextRef": "c-5",
      "name": "us-gaap:FinancingReceivableModificationToTotalFinancingReceivablesExcludingAccruedInterestPercent",
      "unitRef": "number",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "4",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:TroubledDebtRestructuringsOnFinancingReceivablesTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-5",
      "name": "us-gaap:FinancingReceivableModificationToTotalFinancingReceivablesExcludingAccruedInterestPercent",
      "unitRef": "number",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "4",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:TroubledDebtRestructuringsOnFinancingReceivablesTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R47": {
     "role": "http://www.northwestsavingsbank.com/role/LoansReceivableFinancingReceivableWeightedAverageModifiedPeriodDetails",
     "longName": "9954493 - Disclosure - Loans Receivable - Financing Receivable Weighted Average Modified Period (Details)",
     "shortName": "Loans Receivable - Financing Receivable Weighted Average Modified Period (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "47",
     "firstAnchor": {
      "contextRef": "c-5",
      "name": "us-gaap:FinancingReceivableModifiedWeightedAverageInterestRateDecreaseFromModification",
      "unitRef": "number",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "2",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-5",
      "name": "us-gaap:FinancingReceivableModifiedWeightedAverageInterestRateDecreaseFromModification",
      "unitRef": "number",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "2",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R48": {
     "role": "http://www.northwestsavingsbank.com/role/LoansReceivablePerformanceofLoansDetails",
     "longName": "9954494 - Disclosure - Loans Receivable - Performance of Loans (Details)",
     "shortName": "Loans Receivable - Performance of Loans (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "48",
     "firstAnchor": {
      "contextRef": "c-421",
      "name": "us-gaap:FinancingReceivableExcludingAccruedInterestModifiedPeriod",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-421",
      "name": "us-gaap:FinancingReceivableExcludingAccruedInterestModifiedPeriod",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R49": {
     "role": "http://www.northwestsavingsbank.com/role/LoansReceivableLoansModifiedwithPaymentDefaultDetails",
     "longName": "9954495 - Disclosure - Loans Receivable - Loans Modified with Payment Default (Details)",
     "shortName": "Loans Receivable - Loans Modified with Payment Default (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "49",
     "firstAnchor": {
      "contextRef": "c-384",
      "name": "us-gaap:FinancingReceivableExcludingAccruedInterestModifiedSubsequentDefault",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-384",
      "name": "us-gaap:FinancingReceivableExcludingAccruedInterestModifiedSubsequentDefault",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R50": {
     "role": "http://www.northwestsavingsbank.com/role/LoansReceivableLoanDelinquenciesDetails",
     "longName": "9954496 - Disclosure - Loans Receivable - Loan Delinquencies (Details)",
     "shortName": "Loans Receivable - Loan Delinquencies (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "50",
     "firstAnchor": {
      "contextRef": "c-3",
      "name": "us-gaap:FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossFeeAndLoanInProcess",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:PastDueFinancingReceivablesTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-3",
      "name": "us-gaap:FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossFeeAndLoanInProcess",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:PastDueFinancingReceivablesTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R51": {
     "role": "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails",
     "longName": "9954497 - Disclosure - Loans Receivable - Credit Quality Indicators (Details)",
     "shortName": "Loans Receivable - Credit Quality Indicators (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "51",
     "firstAnchor": {
      "contextRef": "c-3",
      "name": "us-gaap:FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:FinancingReceivableCreditQualityIndicatorsTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true
     },
     "uniqueAnchor": {
      "contextRef": "c-4",
      "name": "us-gaap:FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "unique": true
     }
    },
    "R52": {
     "role": "http://www.northwestsavingsbank.com/role/GoodwillandOtherIntangibleAssetsIntangibleAssetsDetails",
     "longName": "9954498 - Disclosure - Goodwill and Other Intangible Assets - Intangible Assets (Details)",
     "shortName": "Goodwill and Other Intangible Assets - Intangible Assets (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "52",
     "firstAnchor": {
      "contextRef": "c-3",
      "name": "us-gaap:FiniteLivedIntangibleAssetsNet",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true
     },
     "uniqueAnchor": {
      "contextRef": "c-4",
      "name": "us-gaap:FiniteLivedIntangibleAssetsNet",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "unique": true
     }
    },
    "R53": {
     "role": "http://www.northwestsavingsbank.com/role/GoodwillandOtherIntangibleAssetsChangesintheCarryingAmountofGoodwillDetails",
     "longName": "9954499 - Disclosure - Goodwill and Other Intangible Assets - Changes in the Carrying Amount of Goodwill (Details)",
     "shortName": "Goodwill and Other Intangible Assets - Changes in the Carrying Amount of Goodwill (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "53",
     "firstAnchor": {
      "contextRef": "c-3",
      "name": "us-gaap:Goodwill",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true
     },
     "uniqueAnchor": {
      "contextRef": "c-601",
      "name": "us-gaap:GoodwillImpairmentLoss",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "ix:continuation",
       "span",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "unique": true
     }
    },
    "R54": {
     "role": "http://www.northwestsavingsbank.com/role/BorrowedFundsScheduleofBorrowedFundsDetails",
     "longName": "9954500 - Disclosure - Borrowed Funds - Schedule of Borrowed Funds (Details)",
     "shortName": "Borrowed Funds - Schedule of Borrowed Funds (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "54",
     "firstAnchor": {
      "contextRef": "c-3",
      "name": "us-gaap:ShortTermBorrowings",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfDebtTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true
     },
     "uniqueAnchor": {
      "contextRef": "c-606",
      "name": "us-gaap:DebtInstrumentInterestRateEffectivePercentage",
      "unitRef": "number",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "4",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfDebtTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "unique": true
     }
    },
    "R55": {
     "role": "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails",
     "longName": "9954501 - Disclosure - Borrowed Funds - Narrative (Details)",
     "shortName": "Borrowed Funds - Narrative (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "55",
     "firstAnchor": {
      "contextRef": "c-3",
      "name": "us-gaap:FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true
     },
     "uniqueAnchor": {
      "contextRef": "c-3",
      "name": "nwbi:NumberOfBusinessTrustsOwned",
      "unitRef": "business_trust",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "INF",
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "unique": true
     }
    },
    "R56": {
     "role": "http://www.northwestsavingsbank.com/role/BorrowedFundsCapitalDebtSecuritiesDetails",
     "longName": "9954502 - Disclosure - Borrowed Funds - Capital Debt Securities (Details)",
     "shortName": "Borrowed Funds - Capital Debt Securities (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "56",
     "firstAnchor": {
      "contextRef": "c-3",
      "name": "us-gaap:JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true
     },
     "uniqueAnchor": {
      "contextRef": "c-647",
      "name": "nwbi:TrustPreferredIssuedTotalValue",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "nwbi:ScheduleOfCapitalDebtSecuritiesAndJuniorSubordinatedDeferrableInterestDebenturesTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "unique": true
     }
    },
    "R57": {
     "role": "http://www.northwestsavingsbank.com/role/GuaranteesDetails",
     "longName": "9954503 - Disclosure - Guarantees (Details)",
     "shortName": "Guarantees (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "57",
     "firstAnchor": {
      "contextRef": "c-652",
      "name": "nwbi:FinancingReceivableCommitmentsAuthorizedCreditLimit",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-6",
      "ancestors": [
       "ix:continuation",
       "span",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-652",
      "name": "nwbi:FinancingReceivableCommitmentsAuthorizedCreditLimit",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-6",
      "ancestors": [
       "ix:continuation",
       "span",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R58": {
     "role": "http://www.northwestsavingsbank.com/role/EarningsPerShareComputationofBasicandDilutedEarningsPerShareDetails",
     "longName": "9954504 - Disclosure - Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Details)",
     "shortName": "Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "58",
     "firstAnchor": {
      "contextRef": "c-5",
      "name": "us-gaap:NetIncomeLoss",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true
     },
     "uniqueAnchor": {
      "contextRef": "c-5",
      "name": "us-gaap:ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "unique": true
     }
    },
    "R59": {
     "role": "http://www.northwestsavingsbank.com/role/PensionandOtherPostRetirementBenefitsDetails",
     "longName": "9954505 - Disclosure - Pension and Other Post-Retirement Benefits (Details)",
     "shortName": "Pension and Other Post-Retirement Benefits (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "59",
     "firstAnchor": {
      "contextRef": "c-662",
      "name": "us-gaap:DefinedBenefitPlanServiceCost",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfNetBenefitCostsTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-662",
      "name": "us-gaap:DefinedBenefitPlanServiceCost",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfNetBenefitCostsTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R60": {
     "role": "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsNarrativeDetails",
     "longName": "9954506 - Disclosure - Disclosures About Fair Value of Financial Instruments - Narrative (Details)",
     "shortName": "Disclosures About Fair Value of Financial Instruments - Narrative (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "60",
     "firstAnchor": {
      "contextRef": "c-1",
      "name": "nwbi:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisFinancialInstrumentsTotalUnrealizedGainsLossesPeriodIncreaseDecrease",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-6",
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-1",
      "name": "nwbi:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisFinancialInstrumentsTotalUnrealizedGainsLossesPeriodIncreaseDecrease",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-6",
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R61": {
     "role": "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails",
     "longName": "9954507 - Disclosure - Disclosures About Fair Value of Financial Instruments - Carrying Amount and Estimated Fair Value of Financial Instruments (Details)",
     "shortName": "Disclosures About Fair Value of Financial Instruments - Carrying Amount and Estimated Fair Value of Financial Instruments (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "61",
     "firstAnchor": {
      "contextRef": "c-3",
      "name": "us-gaap:HeldToMaturitySecuritiesFairValue",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:HeldToMaturitySecuritiesTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true
     },
     "uniqueAnchor": {
      "contextRef": "c-672",
      "name": "us-gaap:CashAndCashEquivalentsFairValueDisclosure",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "us-gaap:FairValueByBalanceSheetGroupingTextBlock",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "unique": true
     }
    },
    "R62": {
     "role": "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails",
     "longName": "9954508 - Disclosure - Disclosures About Fair Value of Financial Instruments - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details)",
     "shortName": "Disclosures About Fair Value of Financial Instruments - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "62",
     "firstAnchor": {
      "contextRef": "c-930",
      "name": "us-gaap:DerivativeAssets",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfOtherDerivativesNotDesignatedAsHedgingInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true
     },
     "uniqueAnchor": {
      "contextRef": "c-759",
      "name": "us-gaap:AvailableForSaleSecuritiesDebtSecurities",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "us-gaap:ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "unique": true
     }
    },
    "R63": {
     "role": "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsReconciliationofallAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisUsingSignificantUnobservableInputsLevel3Details",
     "longName": "9954509 - Disclosure - Disclosures About Fair Value of Financial Instruments - Reconciliation of all Assets and Liabilities Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs (Level 3) (Details)",
     "shortName": "Disclosures About Fair Value of Financial Instruments - Reconciliation of all Assets and Liabilities Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs (Level 3) (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "63",
     "firstAnchor": {
      "contextRef": "c-884",
      "name": "us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-884",
      "name": "us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R64": {
     "role": "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsNonrecurringAssetsthathadFairMarketValuesBelowtheCarryingAmountDetails",
     "longName": "9954510 - Disclosure - Disclosures About Fair Value of Financial Instruments - Nonrecurring Assets that had Fair Market Values Below the Carrying Amount (Details)",
     "shortName": "Disclosures About Fair Value of Financial Instruments - Nonrecurring Assets that had Fair Market Values Below the Carrying Amount (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "64",
     "firstAnchor": {
      "contextRef": "c-672",
      "name": "us-gaap:LoansReceivableFairValueDisclosure",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "us-gaap:FairValueByBalanceSheetGroupingTextBlock",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true
     },
     "uniqueAnchor": {
      "contextRef": "c-899",
      "name": "us-gaap:AssetsFairValueDisclosure",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:FairValueAssetsMeasuredOnNonrecurringBasisTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "unique": true
     }
    },
    "R65": {
     "role": "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails",
     "longName": "9954511 - Disclosure - Disclosures About Fair Value of Financial Instruments - Additional Quantitative Information, Assets Measured at Fair Value, Recurring and Nonrecurring Basis, Level 3 Input (Details)",
     "shortName": "Disclosures About Fair Value of Financial Instruments - Additional Quantitative Information, Assets Measured at Fair Value, Recurring and Nonrecurring Basis, Level 3 Input (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "65",
     "firstAnchor": {
      "contextRef": "c-899",
      "name": "nwbi:MortgageServicingRightsFairValue",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true
     },
     "uniqueAnchor": {
      "contextRef": "c-919",
      "name": "us-gaap:OtherRealEstateOwnedMeasurementInput",
      "unitRef": "number",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "unique": true
     }
    },
    "R66": {
     "role": "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsNarrativeDetails",
     "longName": "9954512 - Disclosure - Derivative Financial Instruments - Narrative (Details)",
     "shortName": "Derivative Financial Instruments - Narrative (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "66",
     "firstAnchor": {
      "contextRef": "c-921",
      "name": "us-gaap:DerivativeNumberOfInstrumentsHeld",
      "unitRef": "derivative",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "INF",
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-921",
      "name": "us-gaap:DerivativeNumberOfInstrumentsHeld",
      "unitRef": "derivative",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "INF",
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R67": {
     "role": "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsScheduleofDerivativeFinancialInstrumentsDetails",
     "longName": "9954513 - Disclosure - Derivative Financial Instruments - Schedule of Derivative Financial Instruments (Details)",
     "shortName": "Derivative Financial Instruments - Schedule of Derivative Financial Instruments (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "67",
     "firstAnchor": {
      "contextRef": "c-924",
      "name": "us-gaap:DerivativeAssetNotionalAmount",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfOtherDerivativesNotDesignatedAsHedgingInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-924",
      "name": "us-gaap:DerivativeAssetNotionalAmount",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfOtherDerivativesNotDesignatedAsHedgingInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R68": {
     "role": "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsGainLossonDerivativeFinancialInstrumentsDetails",
     "longName": "9954514 - Disclosure - Derivative Financial Instruments - Gain (Loss) on Derivative Financial Instruments (Details)",
     "shortName": "Derivative Financial Instruments - Gain (Loss) on Derivative Financial Instruments (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "68",
     "firstAnchor": {
      "contextRef": "c-5",
      "name": "us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     },
     "uniqueAnchor": {
      "contextRef": "c-5",
      "name": "us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true,
      "unique": true
     }
    },
    "R69": {
     "role": "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsKeyCharacteristicsofInterestRateDerivativeTransactionsDetails",
     "longName": "9954515 - Disclosure - Derivative Financial Instruments - Key Characteristics of Interest Rate Derivative Transactions (Details)",
     "shortName": "Derivative Financial Instruments - Key Characteristics of Interest Rate Derivative Transactions (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "69",
     "firstAnchor": {
      "contextRef": "c-924",
      "name": "us-gaap:DerivativeNotionalAmount",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true
     },
     "uniqueAnchor": {
      "contextRef": "c-924",
      "name": "us-gaap:InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "unique": true
     }
    },
    "R70": {
     "role": "http://www.northwestsavingsbank.com/role/ChangesinAccumulatedOtherComprehensiveIncomeDetails",
     "longName": "9954516 - Disclosure - Changes in Accumulated Other Comprehensive Income (Details)",
     "shortName": "Changes in Accumulated Other Comprehensive Income (Details)",
     "isDefault": "false",
     "groupType": "disclosure",
     "subGroupType": "details",
     "menuCat": "Details",
     "order": "70",
     "firstAnchor": {
      "contextRef": "c-12",
      "name": "us-gaap:StockholdersEquity",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "first": true
     },
     "uniqueAnchor": {
      "contextRef": "c-5",
      "name": "us-gaap:OciBeforeReclassificationsNetOfTaxAttributableToParent",
      "unitRef": "usd",
      "xsiNil": "false",
      "lang": "en-US",
      "decimals": "-3",
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "reportCount": 1,
      "baseRef": "nwbi-20240630.htm",
      "unique": true
     }
    },
    "R9999": {
     "role": "http://xbrl.sec.gov/role/uncategorizedFacts",
     "longName": "Uncategorized Items - nwbi-20240630.htm",
     "shortName": "Uncategorized Items - nwbi-20240630.htm",
     "isDefault": "false",
     "groupType": "",
     "subGroupType": "",
     "menuCat": "Cover",
     "order": "71",
     "firstAnchor": null,
     "uniqueAnchor": null
    }
   },
   "tag": {
    "nwbi_AAPlusRatingMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "AAPlusRatingMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesCreditQualityofHeldToMaturitySecuritiesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "AA+",
        "label": "AA Plus Rating [Member]",
        "documentation": "AA Plus Rating [Member]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_AOCIAttributableToParentNetOfTaxRollForward": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AOCIAttributableToParentNetOfTaxRollForward",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/ChangesinAccumulatedOtherComprehensiveIncomeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Changes in accumulated other comprehensive income by component",
        "label": "AOCI Attributable to Parent, Net of Tax [Roll Forward]",
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_AccountingStandardsUpdateExtensibleList": {
     "xbrltype": "enumerationSetItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AccountingStandardsUpdateExtensibleList",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITYUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Accounting Standards Update [Extensible List]",
        "label": "Accounting Standards Update [Extensible Enumeration]",
        "documentation": "Indicates amendment to accounting standards."
       }
      }
     },
     "auth_ref": [
      "r188",
      "r189",
      "r190",
      "r191",
      "r192",
      "r193",
      "r235",
      "r236",
      "r237",
      "r275",
      "r276",
      "r321",
      "r322",
      "r323",
      "r324",
      "r325",
      "r326",
      "r327",
      "r328",
      "r329",
      "r368",
      "r369",
      "r372",
      "r528",
      "r529",
      "r530",
      "r531",
      "r533",
      "r534",
      "r535",
      "r536",
      "r537",
      "r538",
      "r539",
      "r540",
      "r541",
      "r542",
      "r543",
      "r544",
      "r545",
      "r546",
      "r547",
      "r548",
      "r549",
      "r559",
      "r560",
      "r561",
      "r570",
      "r571",
      "r572",
      "r573",
      "r574",
      "r575",
      "r576",
      "r577",
      "r578",
      "r579",
      "r580",
      "r606",
      "r607",
      "r619",
      "r622",
      "r623",
      "r624",
      "r625",
      "r626",
      "r627",
      "r705",
      "r706",
      "r707",
      "r708",
      "r709",
      "r710",
      "r711",
      "r712",
      "r713",
      "r714",
      "r715",
      "r716",
      "r1008"
     ]
    },
    "us-gaap_AccountsNotesAndLoansReceivableLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AccountsNotesAndLoansReceivableLineItems",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanPortfoliobyPortfolioSegmentandbyClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableOriginatedandAcquiredLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Accounts, Notes, Loans and Financing Receivable [Line Items]",
        "label": "Accounts, Notes, Loans and Financing Receivable [Line Items]",
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table."
       }
      }
     },
     "auth_ref": [
      "r278",
      "r1023"
     ]
    },
    "us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/GuaranteesDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableChangesintheAllowanceforLossesonLoansReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableCompositionofImpairedLoansbyPortfolioSegmentandClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableOriginatedandAcquiredLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Receivable Type [Axis]",
        "label": "Receivable Type [Axis]",
        "documentation": "Information by type of receivable."
       }
      }
     },
     "auth_ref": [
      "r76",
      "r82"
     ]
    },
    "us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AccretionAmortizationOfDiscountsAndPremiumsInvestments",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0,
       "order": 6.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedLabel": "Net amortization on marketable securities",
        "label": "Accretion (Amortization) of Discounts and Premiums, Investments",
        "documentation": "The sum of the periodic adjustments of the differences between securities' face values and purchase prices that are charged against earnings. This is called accretion if the security was purchased at a discount and amortization if it was purchased at premium. As a noncash item, this element is an adjustment to net income when calculating cash provided by or used in operations using the indirect method."
       }
      }
     },
     "auth_ref": [
      "r97"
     ]
    },
    "us-gaap_AccruedLiabilitiesFairValueDisclosure": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AccruedLiabilitiesFairValueDisclosure",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails": {
       "parentTag": "us-gaap_LiabilitiesFairValueDisclosure",
       "weight": 1.0,
       "order": 6.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Accrued interest payable",
        "label": "Accrued Liabilities, Fair Value Disclosure",
        "documentation": "Fair value portion of accrued expenses."
       }
      }
     },
     "auth_ref": [
      "r66",
      "r1108",
      "r1109",
      "r1119"
     ]
    },
    "us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AccumulatedDefinedBenefitPlansAdjustmentMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/ChangesinAccumulatedOtherComprehensiveIncomeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Change\u00a0in\u00a0 defined\u00a0benefit\u00a0 pension\u00a0plans",
        "label": "Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]",
        "documentation": "Accumulated other comprehensive (income) loss related to defined benefit plans attributable to the parent."
       }
      }
     },
     "auth_ref": [
      "r3",
      "r4",
      "r17",
      "r25",
      "r84",
      "r991",
      "r992",
      "r993"
     ]
    },
    "us-gaap_AccumulatedGainLossNetCashFlowHedgeParentMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AccumulatedGainLossNetCashFlowHedgeParentMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/ChangesinAccumulatedOtherComprehensiveIncomeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Change\u00a0in\u00a0 fair\u00a0value\u00a0 of\u00a0interest\u00a0 rate\u00a0swaps",
        "label": "Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]",
        "documentation": "Accumulated other comprehensive income (loss) from gain (loss) of derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness, attributable to parent."
       }
      }
     },
     "auth_ref": [
      "r207",
      "r216",
      "r217",
      "r552",
      "r823",
      "r991"
     ]
    },
    "us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AccumulatedNetUnrealizedInvestmentGainLossMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/ChangesinAccumulatedOtherComprehensiveIncomeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Unrealized\u00a0 losses on\u00a0securities\u00a0 available-for-sale",
        "label": "AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]",
        "documentation": "Accumulated unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), attributable to parent."
       }
      }
     },
     "auth_ref": [
      "r202",
      "r203",
      "r204",
      "r207",
      "r216",
      "r217",
      "r991"
     ]
    },
    "us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AccumulatedOtherComprehensiveIncomeLossLineItems",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/ChangesinAccumulatedOtherComprehensiveIncomeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Accumulated other comprehensive income (net of tax)",
        "label": "Accumulated Other Comprehensive Income (Loss) [Line Items]",
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table."
       }
      }
     },
     "auth_ref": [
      "r215",
      "r216",
      "r611",
      "r612",
      "r613",
      "r614",
      "r615",
      "r616"
     ]
    },
    "us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AccumulatedOtherComprehensiveIncomeLossNetOfTax",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0,
       "order": 5.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Accumulated other comprehensive loss",
        "label": "Accumulated Other Comprehensive Income (Loss), Net of Tax",
        "documentation": "Amount, after tax, of accumulated increase (decrease) in equity from transaction and other event and circumstance from nonowner source."
       }
      }
     },
     "auth_ref": [
      "r24",
      "r25",
      "r85",
      "r199",
      "r689",
      "r712",
      "r716"
     ]
    },
    "us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTaxAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AccumulatedOtherComprehensiveIncomeLossNetOfTaxAbstract",
     "lang": {
      "en-us": {
       "role": {
        "label": "Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_AccumulatedOtherComprehensiveIncomeLossTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AccumulatedOtherComprehensiveIncomeLossTable",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/ChangesinAccumulatedOtherComprehensiveIncomeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Accumulated Other Comprehensive Income (Loss) [Table]",
        "label": "Accumulated Other Comprehensive Income (Loss) [Table]",
        "documentation": "Disclosure of information about components of accumulated other comprehensive income (loss)."
       }
      }
     },
     "auth_ref": [
      "r215",
      "r216",
      "r611",
      "r612",
      "r613",
      "r614",
      "r615",
      "r616"
     ]
    },
    "us-gaap_AccumulatedOtherComprehensiveIncomeMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AccumulatedOtherComprehensiveIncomeMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITYUnaudited",
      "http://www.northwestsavingsbank.com/role/ChangesinAccumulatedOtherComprehensiveIncomeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Accumulated other comprehensive income/(loss)",
        "verboseLabel": "Total",
        "label": "AOCI Attributable to Parent [Member]",
        "documentation": "Accumulated increase (decrease) in equity from transactions and other events and circumstances from non-owner sources, attributable to the parent. Excludes net income (loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners."
       }
      }
     },
     "auth_ref": [
      "r2",
      "r17",
      "r25",
      "r563",
      "r566",
      "r627",
      "r707",
      "r708",
      "r991",
      "r992",
      "r993",
      "r1005",
      "r1006",
      "r1007",
      "r1009"
     ]
    },
    "nwbi_AcquiredLoanMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "AcquiredLoanMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableOriginatedandAcquiredLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Acquired",
        "label": "Acquired Loan [Member]",
        "documentation": "Represents total acquired loans."
       }
      }
     },
     "auth_ref": []
    },
    "ecd_Additional402vDisclosureTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "Additional402vDisclosureTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Additional 402(v) Disclosure",
        "label": "Additional 402(v) Disclosure [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r926"
     ]
    },
    "us-gaap_AdditionalPaidInCapitalCommonStock": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AdditionalPaidInCapitalCommonStock",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0,
       "order": 3.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Additional paid-in capital",
        "label": "Additional Paid in Capital, Common Stock",
        "documentation": "Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital."
       }
      }
     },
     "auth_ref": [
      "r77"
     ]
    },
    "us-gaap_AdditionalPaidInCapitalMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AdditionalPaidInCapitalMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITYUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Additional paid-in capital",
        "label": "Additional Paid-in Capital [Member]",
        "documentation": "Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders."
       }
      }
     },
     "auth_ref": [
      "r721",
      "r1005",
      "r1006",
      "r1007",
      "r1009",
      "r1106",
      "r1159"
     ]
    },
    "ecd_AdjToCompAmt": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "AdjToCompAmt",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Adjustment to Compensation, Amount",
        "label": "Adjustment to Compensation Amount"
       }
      }
     },
     "auth_ref": [
      "r939"
     ]
    },
    "ecd_AdjToCompAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "AdjToCompAxis",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Adjustment to Compensation:",
        "label": "Adjustment to Compensation [Axis]"
       }
      }
     },
     "auth_ref": [
      "r939"
     ]
    },
    "ecd_AdjToNonPeoNeoCompFnTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "AdjToNonPeoNeoCompFnTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Adjustment to Non-PEO NEO Compensation Footnote",
        "label": "Adjustment to Non-PEO NEO Compensation Footnote [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r939"
     ]
    },
    "ecd_AdjToPeoCompFnTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "AdjToPeoCompFnTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Adjustment To PEO Compensation, Footnote",
        "label": "Adjustment To PEO Compensation, Footnote [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r939"
     ]
    },
    "us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue",
     "crdr": "credit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITYUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Stock-based compensation expense",
        "label": "APIC, Share-Based Payment Arrangement, Increase for Cost Recognition",
        "documentation": "Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement."
       }
      }
     },
     "auth_ref": [
      "r42",
      "r43",
      "r497"
     ]
    },
    "us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Adjustments to reconcile net income to net cash provided by operating activities:",
        "label": "Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_AdvancePaymentsByBorrowersForTaxesAndInsurance": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AdvancePaymentsByBorrowersForTaxesAndInsurance",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0,
       "order": 7.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Advances by borrowers for taxes and insurance",
        "label": "Advance Payments by Borrowers for Taxes and Insurance",
        "documentation": "Carrying amount of accumulated prepayments received by financial institutions from borrowers for taxes (for example, property taxes) and insurance (for example, property and catastrophe) which will periodically be remitted to the appropriate governmental agency or vendor on behalf of the borrower."
       }
      }
     },
     "auth_ref": [
      "r121"
     ]
    },
    "ecd_AggtChngPnsnValInSummryCompstnTblForAplblYrMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "AggtChngPnsnValInSummryCompstnTblForAplblYrMember",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table",
        "label": "Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member]"
       }
      }
     },
     "auth_ref": [
      "r972"
     ]
    },
    "ecd_AggtErrCompAmt": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "AggtErrCompAmt",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Aggregate Erroneous Compensation Amount",
        "label": "Aggregate Erroneous Compensation Amount"
       }
      }
     },
     "auth_ref": [
      "r898",
      "r908",
      "r918",
      "r950"
     ]
    },
    "ecd_AggtErrCompNotYetDeterminedTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "AggtErrCompNotYetDeterminedTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Aggregate Erroneous Compensation Not Yet Determined",
        "label": "Aggregate Erroneous Compensation Not Yet Determined [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r901",
      "r911",
      "r921",
      "r953"
     ]
    },
    "ecd_AggtPnsnAdjsSvcCstMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "AggtPnsnAdjsSvcCstMember",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Aggregate Pension Adjustments Service Cost",
        "label": "Aggregate Pension Adjustments Service Cost [Member]"
       }
      }
     },
     "auth_ref": [
      "r973"
     ]
    },
    "ecd_AllAdjToCompMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "AllAdjToCompMember",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "All Adjustments to Compensation",
        "label": "All Adjustments to Compensation [Member]"
       }
      }
     },
     "auth_ref": [
      "r939"
     ]
    },
    "ecd_AllExecutiveCategoriesMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "AllExecutiveCategoriesMember",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "All Executive Categories",
        "label": "All Executive Categories [Member]"
       }
      }
     },
     "auth_ref": [
      "r946"
     ]
    },
    "ecd_AllIndividualsMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "AllIndividualsMember",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure",
      "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure",
      "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements",
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "All Individuals",
        "label": "All Individuals [Member]"
       }
      }
     },
     "auth_ref": [
      "r902",
      "r912",
      "r922",
      "r946",
      "r954",
      "r958",
      "r966"
     ]
    },
    "ecd_AllTradingArrangementsMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "AllTradingArrangementsMember",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "All Trading Arrangements",
        "label": "All Trading Arrangements [Member]"
       }
      }
     },
     "auth_ref": [
      "r964"
     ]
    },
    "us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of the changes in the allowance for losses on loans receivable",
        "label": "Financing Receivable, Allowance for Credit Loss [Table Text Block]",
        "documentation": "Tabular disclosure of allowance for credit loss on financing receivable."
       }
      }
     },
     "auth_ref": [
      "r147",
      "r1058"
     ]
    },
    "us-gaap_AllowanceForLoanAndLeaseLossesRollForward": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AllowanceForLoanAndLeaseLossesRollForward",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableChangesintheAllowanceforLossesonLoansReceivableDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Changes in allowance for losses on allocated loans receivable",
        "label": "Allowance for Loan and Lease Losses [Roll Forward]",
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period."
       }
      }
     },
     "auth_ref": []
    },
    "dei_AmendmentFlag": {
     "xbrltype": "booleanItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2024",
     "localname": "AmendmentFlag",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/Cover"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Amendment Flag",
        "label": "Amendment Flag",
        "documentation": "Boolean flag that is true when the XBRL content amends previously-filed or accepted submission."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_AmortizationOfIntangibleAssets": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AmortizationOfIntangibleAssets",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_NoninterestExpense",
       "weight": 1.0,
       "order": 8.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited",
      "http://www.northwestsavingsbank.com/role/GoodwillandOtherIntangibleAssetsIntangibleAssetsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Amortization of intangible assets",
        "verboseLabel": "Amortization expense",
        "label": "Amortization of Intangible Assets",
        "documentation": "The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method."
       }
      }
     },
     "auth_ref": [
      "r12",
      "r357",
      "r363",
      "r841"
     ]
    },
    "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount": {
     "xbrltype": "sharesItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/EarningsPerShareComputationofBasicandDilutedEarningsPerShareDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Anti-dilutive awards (in shares)",
        "label": "Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount",
        "documentation": "Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented."
       }
      }
     },
     "auth_ref": [
      "r263"
     ]
    },
    "us-gaap_Assets": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "Assets",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": null,
       "weight": null,
       "order": null,
       "root": true
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Total assets",
        "label": "Assets",
        "documentation": "Amount of asset recognized for present right to economic benefit."
       }
      }
     },
     "auth_ref": [
      "r118",
      "r146",
      "r198",
      "r229",
      "r268",
      "r270",
      "r273",
      "r274",
      "r320",
      "r390",
      "r391",
      "r392",
      "r393",
      "r394",
      "r395",
      "r396",
      "r397",
      "r398",
      "r550",
      "r553",
      "r610",
      "r685",
      "r754",
      "r829",
      "r830",
      "r873",
      "r889",
      "r1093",
      "r1094",
      "r1130"
     ]
    },
    "us-gaap_AssetsAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AssetsAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Assets",
        "label": "Assets [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_AssetsFairValueDisclosure": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AssetsFairValueDisclosure",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails": {
       "parentTag": null,
       "weight": null,
       "order": null,
       "root": true
      },
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails": {
       "parentTag": null,
       "weight": null,
       "order": null,
       "root": true
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsNonrecurringAssetsthathadFairMarketValuesBelowtheCarryingAmountDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Total financial assets",
        "terseLabel": "Total assets",
        "label": "Assets, Fair Value Disclosure",
        "documentation": "Fair value portion of asset recognized for present right to economic benefit."
       }
      }
     },
     "auth_ref": [
      "r582",
      "r583",
      "r861"
     ]
    },
    "us-gaap_AutomobileLoanMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AutomobileLoanMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableChangesintheAllowanceforLossesonLoansReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableCompositionofImpairedLoansbyPortfolioSegmentandClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanDelinquenciesDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanPortfoliobyPortfolioSegmentandbyClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableOriginatedandAcquiredLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Vehicle loans",
        "label": "Automobile Loan [Member]",
        "documentation": "Loan to finance the purchase of a vehicle."
       }
      }
     },
     "auth_ref": [
      "r1017"
     ]
    },
    "us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails": {
       "parentTag": "us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss",
       "weight": -1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Residential mortgage-backed securities, gross unrealized holding gains",
        "label": "Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax",
        "documentation": "Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale)."
       }
      }
     },
     "auth_ref": [
      "r292"
     ]
    },
    "us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails": {
       "parentTag": "us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss",
       "weight": 1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedLabel": "Gross unrealized holding losses",
        "label": "Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax",
        "documentation": "Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale)."
       }
      }
     },
     "auth_ref": [
      "r293"
     ]
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableforsalebyContractualMaturityDetails": {
       "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis",
       "weight": 1.0,
       "order": 1.0
      },
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails": {
       "parentTag": null,
       "weight": null,
       "order": null,
       "root": true
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableforsalebyContractualMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Due after five years through ten years",
        "terseLabel": "Due after five years through ten years",
        "label": "Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10",
        "documentation": "Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach)."
       }
      }
     },
     "auth_ref": [
      "r1032"
     ]
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails": {
       "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost",
       "weight": 1.0,
       "order": 2.0
      },
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableforsalebyContractualMaturityDetails": {
       "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate",
       "weight": 1.0,
       "order": 4.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableforsalebyContractualMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Due after five years through ten years",
        "label": "Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10",
        "documentation": "Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach)."
       }
      }
     },
     "auth_ref": [
      "r298",
      "r680"
     ]
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableforsalebyContractualMaturityDetails": {
       "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis",
       "weight": 1.0,
       "order": 2.0
      },
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails": {
       "parentTag": null,
       "weight": null,
       "order": null,
       "root": true
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableforsalebyContractualMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Due after one year through five years",
        "terseLabel": "Due after one year through five years",
        "label": "Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five",
        "documentation": "Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach)."
       }
      }
     },
     "auth_ref": [
      "r1031"
     ]
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableforsalebyContractualMaturityDetails": {
       "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate",
       "weight": 1.0,
       "order": 1.0
      },
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails": {
       "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost",
       "weight": 1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableforsalebyContractualMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Due after one year through five years",
        "label": "Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five",
        "documentation": "Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach)."
       }
      }
     },
     "auth_ref": [
      "r297",
      "r679"
     ]
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableforsalebyContractualMaturityDetails": {
       "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis",
       "weight": 1.0,
       "order": 4.0
      },
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails": {
       "parentTag": null,
       "weight": null,
       "order": null,
       "root": true
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableforsalebyContractualMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Due after ten years",
        "terseLabel": "Due after ten years",
        "label": "Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10",
        "documentation": "Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing after tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach)."
       }
      }
     },
     "auth_ref": [
      "r1033"
     ]
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails": {
       "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost",
       "weight": 1.0,
       "order": 2.0
      },
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableforsalebyContractualMaturityDetails": {
       "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate",
       "weight": 1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableforsalebyContractualMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Due after ten years",
        "label": "Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10",
        "documentation": "Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing after tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach)."
       }
      }
     },
     "auth_ref": [
      "r299",
      "r681"
     ]
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableforsalebyContractualMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Amortized cost",
        "label": "Debt Securities, Available-for-Sale, Amortized Cost, Fiscal Year Maturity [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesFairValueAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesFairValueAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableforsalebyContractualMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Fair value",
        "label": "Debt Securities, Available-for-Sale, Fair Value, Fiscal Year Maturity [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_AvailableForSaleSecuritiesDebtMaturitiesGrossUnrealizedGainAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesGrossUnrealizedGainAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Gross unrealized holding gains",
        "label": "Available-for-sale Securities, Debt Maturities, Gross Unrealized Gain [Abstract]",
        "documentation": "Available-for-sale Securities, Debt Maturities, Gross Unrealized Gain [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableforsalebyContractualMaturityDetails": {
       "parentTag": null,
       "weight": null,
       "order": null,
       "root": true
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableforsalebyContractualMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Total mortgage-backed securities",
        "label": "Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Fair Value",
        "documentation": "Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date."
       }
      }
     },
     "auth_ref": [
      "r1028",
      "r1029",
      "r1144"
     ]
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableforsalebyContractualMaturityDetails": {
       "parentTag": null,
       "weight": null,
       "order": null,
       "root": true
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableforsalebyContractualMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Total mortgage-backed securities",
        "label": "Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Amortized Cost",
        "documentation": "Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date."
       }
      }
     },
     "auth_ref": [
      "r1028",
      "r1029",
      "r1143"
     ]
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableforsalebyContractualMaturityDetails": {
       "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis",
       "weight": 1.0,
       "order": 3.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableforsalebyContractualMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Due within one year",
        "label": "Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One",
        "documentation": "Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach)."
       }
      }
     },
     "auth_ref": [
      "r1030"
     ]
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableforsalebyContractualMaturityDetails": {
       "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate",
       "weight": 1.0,
       "order": 3.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableforsalebyContractualMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Due within one year",
        "label": "Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One",
        "documentation": "Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach)."
       }
      }
     },
     "auth_ref": [
      "r296",
      "r678"
     ]
    },
    "us-gaap_AvailableForSaleSecuritiesDebtSecurities": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AvailableForSaleSecuritiesDebtSecurities",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails": {
       "parentTag": "us-gaap_AssetsFairValueDisclosure",
       "weight": 1.0,
       "order": 3.0
      },
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails": {
       "parentTag": "us-gaap_AssetsFairValueDisclosure",
       "weight": 1.0,
       "order": 7.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Securities available-for-sale",
        "verboseLabel": "Total debt securities",
        "label": "Debt Securities, Available-for-Sale",
        "documentation": "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale)."
       }
      }
     },
     "auth_ref": [
      "r290",
      "r347",
      "r582",
      "r665",
      "r861",
      "r865",
      "r1025",
      "r1110",
      "r1111",
      "r1112"
     ]
    },
    "nwbi_AvailableForSaleSecuritiesUnrealizedLossesAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "AvailableForSaleSecuritiesUnrealizedLossesAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Gross unrealized holding losses",
        "label": "Available-for-sale Securities, Unrealized Losses [Abstract]",
        "documentation": "Available-for-sale Securities, Unrealized Losses [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "ecd_AwardExrcPrice": {
     "xbrltype": "perShareItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "AwardExrcPrice",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Exercise Price",
        "label": "Award Exercise Price"
       }
      }
     },
     "auth_ref": [
      "r961"
     ]
    },
    "ecd_AwardGrantDateFairValue": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "AwardGrantDateFairValue",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Fair Value as of Grant Date",
        "label": "Award Grant Date Fair Value"
       }
      }
     },
     "auth_ref": [
      "r962"
     ]
    },
    "ecd_AwardTmgDiscLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "AwardTmgDiscLineItems",
     "lang": {
      "en-us": {
       "role": {
        "label": "Award Timing Disclosures [Line Items]"
       }
      }
     },
     "auth_ref": [
      "r957"
     ]
    },
    "ecd_AwardTmgHowMnpiCnsdrdTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "AwardTmgHowMnpiCnsdrdTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Award Timing, How MNPI Considered",
        "label": "Award Timing, How MNPI Considered [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r957"
     ]
    },
    "ecd_AwardTmgMethodTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "AwardTmgMethodTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Award Timing Method",
        "label": "Award Timing Method [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r957"
     ]
    },
    "ecd_AwardTmgMnpiCnsdrdFlag": {
     "xbrltype": "booleanItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "AwardTmgMnpiCnsdrdFlag",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Award Timing MNPI Considered",
        "label": "Award Timing MNPI Considered [Flag]"
       }
      }
     },
     "auth_ref": [
      "r957"
     ]
    },
    "ecd_AwardTmgMnpiDiscTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "AwardTmgMnpiDiscTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Award Timing MNPI Disclosure",
        "label": "Award Timing MNPI Disclosure [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r957"
     ]
    },
    "ecd_AwardTmgPredtrmndFlag": {
     "xbrltype": "booleanItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "AwardTmgPredtrmndFlag",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Award Timing Predetermined",
        "label": "Award Timing Predetermined [Flag]"
       }
      }
     },
     "auth_ref": [
      "r957"
     ]
    },
    "us-gaap_AwardTypeAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "AwardTypeAxis",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Award Type",
        "label": "Award Type [Axis]",
        "documentation": "Information by type of award under share-based payment arrangement."
       }
      }
     },
     "auth_ref": [
      "r498",
      "r499",
      "r500",
      "r501",
      "r502",
      "r503",
      "r504",
      "r505",
      "r506",
      "r507",
      "r508",
      "r509",
      "r510",
      "r511",
      "r512",
      "r513",
      "r514",
      "r515",
      "r516",
      "r517",
      "r518",
      "r519",
      "r520",
      "r521",
      "r522",
      "r523"
     ]
    },
    "ecd_AwardUndrlygSecuritiesAmt": {
     "xbrltype": "decimalItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "AwardUndrlygSecuritiesAmt",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Underlying Securities",
        "label": "Award Underlying Securities Amount"
       }
      }
     },
     "auth_ref": [
      "r960"
     ]
    },
    "ecd_AwardsCloseToMnpiDiscIndName": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "AwardsCloseToMnpiDiscIndName",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Name",
        "label": "Awards Close in Time to MNPI Disclosures, Individual Name"
       }
      }
     },
     "auth_ref": [
      "r959"
     ]
    },
    "ecd_AwardsCloseToMnpiDiscTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "AwardsCloseToMnpiDiscTable",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Awards Close in Time to MNPI Disclosures",
        "label": "Awards Close in Time to MNPI Disclosures [Table]"
       }
      }
     },
     "auth_ref": [
      "r958"
     ]
    },
    "ecd_AwardsCloseToMnpiDiscTableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "AwardsCloseToMnpiDiscTableTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Awards Close in Time to MNPI Disclosures, Table",
        "label": "Awards Close in Time to MNPI Disclosures [Table Text Block]"
       }
      }
     },
     "auth_ref": [
      "r958"
     ]
    },
    "us-gaap_BankOwnedLifeInsurance": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "BankOwnedLifeInsurance",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "us-gaap_Assets",
       "weight": 1.0,
       "order": 6.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Bank-owned life insurance",
        "label": "Bank Owned Life Insurance",
        "documentation": "The carrying amount of a life insurance policy on an officer, executive or employee for which the reporting entity (a bank) is entitled to proceeds from the policy upon death of the insured or surrender of the insurance policy."
       }
      }
     },
     "auth_ref": [
      "r1140"
     ]
    },
    "us-gaap_BankOwnedLifeInsuranceIncome": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "BankOwnedLifeInsuranceIncome",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_NoninterestIncome",
       "weight": 1.0,
       "order": 3.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Income from bank-owned life insurance",
        "label": "Bank Owned Life Insurance Income",
        "documentation": "Earnings on or other increases in the value of the cash surrender value of bank owned life insurance policies."
       }
      }
     },
     "auth_ref": [
      "r128"
     ]
    },
    "us-gaap_BasisOfAccountingPolicyPolicyTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "BasisOfAccountingPolicyPolicyTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BasisofPresentationandInformationalDisclosuresPolicies"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Basis of Presentation",
        "label": "Basis of Accounting, Policy [Policy Text Block]",
        "documentation": "Disclosure of accounting policy for basis of accounting, or basis of presentation, used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS)."
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_BorrowedFundsTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "BorrowedFundsTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFunds"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Borrowed Funds",
        "label": "Borrowed Funds [Text Block]",
        "documentation": "The entire disclosure for borrowings by the entity for both short and long term borrowings which includes information related to balance outstanding, interest rate and maturity date."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_CarryingReportedAmountFairValueDisclosureMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "CarryingReportedAmountFairValueDisclosureMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Carrying amount",
        "label": "Reported Value Measurement [Member]",
        "documentation": "Measured as reported on the statement of financial position (balance sheet)."
       }
      }
     },
     "auth_ref": [
      "r59",
      "r60"
     ]
    },
    "us-gaap_CashAndCashEquivalentsFairValueDisclosure": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "CashAndCashEquivalentsFairValueDisclosure",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails": {
       "parentTag": "us-gaap_AssetsFairValueDisclosure",
       "weight": 1.0,
       "order": 4.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Cash and cash equivalents",
        "label": "Cash and Cash Equivalents, Fair Value Disclosure",
        "documentation": "Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates."
       }
      }
     },
     "auth_ref": [
      "r1108",
      "r1109"
     ]
    },
    "us-gaap_CashAndDueFromBanks": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "CashAndDueFromBanks",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "nwbi_CashCashEquivalentsAndMarketableSecurities",
       "weight": 1.0,
       "order": 3.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Cash and cash equivalents",
        "label": "Cash and Due from Banks",
        "documentation": "For banks and other depository institutions: Includes cash on hand (currency and coin), cash items in process of collection, noninterest bearing deposits due from other financial institutions (including corporate credit unions), and noninterest bearing balances with the Federal Reserve Banks, Federal Home Loan Banks and central banks."
       }
      }
     },
     "auth_ref": [
      "r115"
     ]
    },
    "nwbi_CashAndSecuritiesCollateral": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "CashAndSecuritiesCollateral",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Cash and securities collateral",
        "label": "Cash And Securities Collateral",
        "documentation": "Cash And Securities Collateral"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_CashCashEquivalentsAndMarketableSecurities": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "CashCashEquivalentsAndMarketableSecurities",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "us-gaap_Assets",
       "weight": 1.0,
       "order": 10.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Total cash and cash equivalents and marketable securities",
        "label": "Cash, Cash Equivalents and Marketable Securities",
        "documentation": "Cash, cash equivalents and marketable securities."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "periodStartLabel": "Cash and cash equivalents at beginning of period",
        "periodEndLabel": "Cash and cash equivalents at end of period",
        "label": "Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents",
        "documentation": "Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates."
       }
      }
     },
     "auth_ref": [
      "r30",
      "r94",
      "r228"
     ]
    },
    "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": null,
       "weight": null,
       "order": null,
       "root": true
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Net increase/(decrease) in cash and cash equivalents",
        "terseLabel": "Net increase/(decrease) in cash and cash equivalents",
        "label": "Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect",
        "documentation": "Amount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates."
       }
      }
     },
     "auth_ref": [
      "r1",
      "r94"
     ]
    },
    "us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Non-cash activities:",
        "label": "Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_CashPaidDuringPeriodForAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "CashPaidDuringPeriodForAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Cash paid during the period for:",
        "label": "Cash Paid During Period for [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_CashPaidForInterestOnDeposits": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "CashPaidForInterestOnDeposits",
     "crdr": "credit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnauditedParenthetical"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Interest on deposits and borrowings, interest credited to deposit accounts",
        "label": "Cash Paid for Interest on Deposits",
        "documentation": "This element represents interest paid to depositors on deposit accounts held by the institution."
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_CashPaidForInterestOnDepositsAndBorrowings": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "CashPaidForInterestOnDepositsAndBorrowings",
     "crdr": "credit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "verboseLabel": "Interest on deposits and borrowings (including interest credited to deposit accounts of $81,238 and $30,790, respectively)",
        "label": "Cash Paid for Interest on Deposits and Borrowings",
        "documentation": "This element represents the interest paid on deposits and borrowings during the reporting period."
       }
      }
     },
     "auth_ref": []
    },
    "ecd_ChangedPeerGroupFnTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "ChangedPeerGroupFnTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Changed Peer Group, Footnote",
        "label": "Changed Peer Group, Footnote [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r937"
     ]
    },
    "ecd_ChngInFrValAsOfVstngDtOfPrrYrEqtyAwrdsVstdInCvrdYrMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "ChngInFrValAsOfVstngDtOfPrrYrEqtyAwrdsVstdInCvrdYrMember",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year",
        "label": "Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member]"
       }
      }
     },
     "auth_ref": [
      "r934"
     ]
    },
    "ecd_ChngInFrValOfOutsdngAndUnvstdEqtyAwrdsGrntdInPrrYrsMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "ChngInFrValOfOutsdngAndUnvstdEqtyAwrdsGrntdInPrrYrsMember",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested",
        "label": "Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member]"
       }
      }
     },
     "auth_ref": [
      "r932"
     ]
    },
    "dei_CityAreaCode": {
     "xbrltype": "normalizedStringItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2024",
     "localname": "CityAreaCode",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/Cover"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "City Area Code",
        "label": "City Area Code",
        "documentation": "Area code of city"
       }
      }
     },
     "auth_ref": []
    },
    "ecd_CoSelectedMeasureAmt": {
     "xbrltype": "decimalItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "CoSelectedMeasureAmt",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Company Selected Measure Amount",
        "label": "Company Selected Measure Amount"
       }
      }
     },
     "auth_ref": [
      "r938"
     ]
    },
    "ecd_CoSelectedMeasureName": {
     "xbrltype": "normalizedStringItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "CoSelectedMeasureName",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Company Selected Measure Name",
        "label": "Company Selected Measure Name"
       }
      }
     },
     "auth_ref": [
      "r938"
     ]
    },
    "us-gaap_CollateralizedDebtObligationsMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "CollateralizedDebtObligationsMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Collateralized mortgage obligations",
        "label": "Collateralized Debt Obligations [Member]",
        "documentation": "Securities collateralized by a pool of assets."
       }
      }
     },
     "auth_ref": [
      "r861",
      "r863",
      "r865",
      "r1027",
      "r1034",
      "r1099"
     ]
    },
    "us-gaap_CollateralizedSecuritiesMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "CollateralizedSecuritiesMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableforsalebyContractualMaturityDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesCreditQualityofHeldToMaturitySecuritiesDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesFairValueofandGrossUnrealizedLossesonInvestmentSecuritiesDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturitybyContractualMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Mortgage-backed securities",
        "label": "Collateralized Securities [Member]",
        "documentation": "Securities collateralized by other financial instruments or pools of financial instruments."
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_CommercialBankingMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "CommercialBankingMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableAmortizedCostBasisofLoansModifiedDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableChangesintheAllowanceforLossesonLoansReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableCompositionofImpairedLoansbyPortfolioSegmentandClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableFinancingReceivableWeightedAverageModifiedPeriodDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanDelinquenciesDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanPortfoliobyPortfolioSegmentandbyClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoansModifiedwithPaymentDefaultDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableOriginatedandAcquiredLoansDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivablePerformanceofLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Commercial Banking",
        "label": "Commercial Banking [Member]",
        "documentation": "Commercial Banking"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_CommercialLoanMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "CommercialLoanMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableAmortizedCostBasisofLoansModifiedDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableChangesintheAllowanceforLossesonLoansReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableCompositionofImpairedLoansbyPortfolioSegmentandClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableFinancingReceivableWeightedAverageModifiedPeriodDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanDelinquenciesDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanPortfoliobyPortfolioSegmentandbyClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoansModifiedwithPaymentDefaultDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableOriginatedandAcquiredLoansDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivablePerformanceofLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Commercial loans",
        "label": "Commercial Loan [Member]",
        "documentation": "A loan, whether secured or unsecured, to a company for purposes such as seasonal working capital needs, inventory financing, equipment purchases and acquisitions."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_CommercialRealEstateMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "CommercialRealEstateMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableAmortizedCostBasisofLoansModifiedDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableChangesintheAllowanceforLossesonLoansReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableCompositionofImpairedLoansbyPortfolioSegmentandClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableFinancingReceivableWeightedAverageModifiedPeriodDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanDelinquenciesDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanPortfoliobyPortfolioSegmentandbyClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableOriginatedandAcquiredLoansDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivablePerformanceofLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Commercial real estate loans",
        "label": "Commercial Real Estate [Member]",
        "documentation": "Property that is solely used for business purposes."
       }
      }
     },
     "auth_ref": [
      "r831",
      "r835",
      "r1099"
     ]
    },
    "nwbi_CommercialRealEstateOwnerOccupiedMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "CommercialRealEstateOwnerOccupiedMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableAmortizedCostBasisofLoansModifiedDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableChangesintheAllowanceforLossesonLoansReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableCompositionofImpairedLoansbyPortfolioSegmentandClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableFinancingReceivableWeightedAverageModifiedPeriodDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanDelinquenciesDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanPortfoliobyPortfolioSegmentandbyClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableOriginatedandAcquiredLoansDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivablePerformanceofLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Commercial real estate loans - owner occupied",
        "label": "Commercial Real Estate, Owner Occupied [Member]",
        "documentation": "Commercial Real Estate, Owner Occupied [Member]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_CommitmentsAndContingenciesDisclosureAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "CommitmentsAndContingenciesDisclosureAbstract",
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Commitments and Contingencies Disclosure [Abstract]",
        "label": "Commitments and Contingencies Disclosure [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_CommonStockDividendsPerShareCashPaid": {
     "xbrltype": "perShareItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "CommonStockDividendsPerShareCashPaid",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITYUnauditedParenthetical"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Dividends paid, per share (in dollars per share)",
        "label": "Common Stock, Dividends, Per Share, Cash Paid",
        "documentation": "Aggregate dividends paid during the period for each share of common stock outstanding."
       }
      }
     },
     "auth_ref": [
      "r105"
     ]
    },
    "us-gaap_CommonStockMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "CommonStockMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITYUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Common stock",
        "label": "Common Stock [Member]",
        "documentation": "Stock that is subordinate to all other stock of the issuer."
       }
      }
     },
     "auth_ref": [
      "r877",
      "r878",
      "r879",
      "r881",
      "r882",
      "r883",
      "r886",
      "r1005",
      "r1006",
      "r1009",
      "r1106",
      "r1154",
      "r1159"
     ]
    },
    "us-gaap_CommonStockParOrStatedValuePerShare": {
     "xbrltype": "perShareItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "CommonStockParOrStatedValuePerShare",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnauditedParenthetical"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Common stock, par value (in dollars per share)",
        "label": "Common Stock, Par or Stated Value Per Share",
        "documentation": "Face amount or stated value per share of common stock."
       }
      }
     },
     "auth_ref": [
      "r75"
     ]
    },
    "us-gaap_CommonStockSharesAuthorized": {
     "xbrltype": "sharesItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "CommonStockSharesAuthorized",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnauditedParenthetical"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Common stock, shares authorized (in shares)",
        "label": "Common Stock, Shares Authorized",
        "documentation": "The maximum number of common shares permitted to be issued by an entity's charter and bylaws."
       }
      }
     },
     "auth_ref": [
      "r75",
      "r742"
     ]
    },
    "us-gaap_CommonStockSharesIssued": {
     "xbrltype": "sharesItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "CommonStockSharesIssued",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnauditedParenthetical"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Common stock, shares issued (in shares)",
        "label": "Common Stock, Shares, Issued",
        "documentation": "Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury."
       }
      }
     },
     "auth_ref": [
      "r75"
     ]
    },
    "us-gaap_CommonStockSharesOutstanding": {
     "xbrltype": "sharesItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "CommonStockSharesOutstanding",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITYUnaudited",
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnauditedParenthetical"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Common stock, shares outstanding (in shares)",
        "periodStartLabel": "Beginning balance (in shares)",
        "periodEndLabel": "Ending balance (in shares)",
        "label": "Common Stock, Shares, Outstanding",
        "documentation": "Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation."
       }
      }
     },
     "auth_ref": [
      "r19",
      "r75",
      "r742",
      "r760",
      "r1159",
      "r1160"
     ]
    },
    "us-gaap_CommonStockValue": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "CommonStockValue",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "verboseLabel": "Common stock, $0.01 par value: 500,000,000 shares authorized, 127,307,997 and 127,110,453 shares issued and outstanding, respectively",
        "label": "Common Stock, Value, Issued",
        "documentation": "Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity."
       }
      }
     },
     "auth_ref": [
      "r75",
      "r688",
      "r873"
     ]
    },
    "ecd_CompActuallyPaidVsCoSelectedMeasureTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "CompActuallyPaidVsCoSelectedMeasureTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Compensation Actually Paid vs. Company Selected Measure",
        "label": "Compensation Actually Paid vs. Company Selected Measure [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r943"
     ]
    },
    "ecd_CompActuallyPaidVsNetIncomeTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "CompActuallyPaidVsNetIncomeTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Compensation Actually Paid vs. Net Income",
        "label": "Compensation Actually Paid vs. Net Income [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r942"
     ]
    },
    "ecd_CompActuallyPaidVsOtherMeasureTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "CompActuallyPaidVsOtherMeasureTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Compensation Actually Paid vs. Other Measure",
        "label": "Compensation Actually Paid vs. Other Measure [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r944"
     ]
    },
    "ecd_CompActuallyPaidVsTotalShareholderRtnTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "CompActuallyPaidVsTotalShareholderRtnTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Compensation Actually Paid vs. Total Shareholder Return",
        "label": "Compensation Actually Paid vs. Total Shareholder Return [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r941"
     ]
    },
    "us-gaap_CompensationAndRetirementDisclosureAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "CompensationAndRetirementDisclosureAbstract",
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Retirement Benefits [Abstract]",
        "label": "Retirement Benefits [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_ComprehensiveIncomeNetOfTax": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ComprehensiveIncomeNetOfTax",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnaudited": {
       "parentTag": null,
       "weight": null,
       "order": null,
       "root": true
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITYUnaudited",
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Total comprehensive income",
        "label": "Comprehensive Income (Loss), Net of Tax, Attributable to Parent",
        "documentation": "Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners."
       }
      }
     },
     "auth_ref": [
      "r26",
      "r212",
      "r214",
      "r219",
      "r670",
      "r697",
      "r698"
     ]
    },
    "us-gaap_ComprehensiveIncomeNetOfTaxAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ComprehensiveIncomeNetOfTaxAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITYUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Comprehensive income:",
        "label": "Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_ComprehensiveIncomeNoteTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ComprehensiveIncomeNoteTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/ChangesinAccumulatedOtherComprehensiveIncome"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Changes in Accumulated Other Comprehensive Income",
        "label": "Comprehensive Income (Loss) Note [Text Block]",
        "documentation": "The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income."
       }
      }
     },
     "auth_ref": [
      "r83",
      "r218",
      "r669",
      "r695"
     ]
    },
    "us-gaap_ConsumerLoanMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ConsumerLoanMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableAmortizedCostBasisofLoansModifiedDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableChangesintheAllowanceforLossesonLoansReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableCompositionofImpairedLoansbyPortfolioSegmentandClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableFinancingReceivableWeightedAverageModifiedPeriodDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanDelinquenciesDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanPortfoliobyPortfolioSegmentandbyClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableOriginatedandAcquiredLoansDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivablePerformanceofLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Consumer loans",
        "label": "Consumer Loan [Member]",
        "documentation": "Loan or extension of credit for personal, family, or household use excluding real estate."
       }
      }
     },
     "auth_ref": [
      "r837"
     ]
    },
    "us-gaap_ContractWithCustomerLiability": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ContractWithCustomerLiability",
     "crdr": "credit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/GuaranteesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Liability recognized for the obligations",
        "label": "Contract with Customer, Liability",
        "documentation": "Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable."
       }
      }
     },
     "auth_ref": [
      "r420",
      "r421",
      "r422"
     ]
    },
    "us-gaap_ContractualInterestRateReductionMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ContractualInterestRateReductionMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableAmortizedCostBasisofLoansModifiedDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Interest rate reduction",
        "label": "Contractual Interest Rate Reduction [Member]",
        "documentation": "Loan modification for a reduction of contractual interest rate."
       }
      }
     },
     "auth_ref": [
      "r281",
      "r282",
      "r284",
      "r831"
     ]
    },
    "us-gaap_CoreDepositsMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "CoreDepositsMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/GoodwillandOtherIntangibleAssetsIntangibleAssetsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Core Deposits",
        "label": "Core Deposits [Member]",
        "documentation": "Entity's long-term relationships with depositors, commonly known as core deposit intangibles, which are separate from the financial instruments themselves."
       }
      }
     },
     "auth_ref": [
      "r61",
      "r1075",
      "r1076",
      "r1077",
      "r1078",
      "r1079",
      "r1081",
      "r1083",
      "r1084"
     ]
    },
    "us-gaap_CorporateDebtSecuritiesMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "CorporateDebtSecuritiesMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesFairValueofandGrossUnrealizedLossesonInvestmentSecuritiesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Corporate debt issues",
        "verboseLabel": "Corporate",
        "label": "Corporate Debt Securities [Member]",
        "documentation": "Debt securities issued by domestic or foreign corporate business, banks and other entities with a promise of repayment."
       }
      }
     },
     "auth_ref": [
      "r848",
      "r850",
      "r861",
      "r874",
      "r876",
      "r1151"
     ]
    },
    "dei_CoverAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2024",
     "localname": "CoverAbstract",
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Cover [Abstract]",
        "label": "Cover [Abstract]",
        "documentation": "Cover page."
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_CreditCardsIssuedMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "CreditCardsIssuedMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/GuaranteesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Credit Cards Issued",
        "label": "Credit Cards Issued [Member]",
        "documentation": "Credit Cards Issued"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_CreditRatingAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "CreditRatingAxis",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesCreditQualityofHeldToMaturitySecuritiesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Credit Rating [Axis]",
        "label": "Credit Rating [Axis]",
        "documentation": "Credit Rating [Axis]"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_CreditRatingDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "CreditRatingDomain",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesCreditQualityofHeldToMaturitySecuritiesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Credit Rating [Domain]",
        "label": "Credit Rating [Domain]",
        "documentation": "[Domain] for Credit Rating [Axis]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_CreditRiskContractMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "CreditRiskContractMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsScheduleofDerivativeFinancialInstrumentsDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Risk participation agreements",
        "label": "Credit Risk Contract [Member]",
        "documentation": "Derivative instrument whose primary underlying risk is tied to the creditworthiness or the credit spread of an entity."
       }
      }
     },
     "auth_ref": [
      "r822",
      "r848",
      "r860",
      "r861",
      "r863",
      "r865"
     ]
    },
    "srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/srt/2024",
     "localname": "CumulativeEffectPeriodOfAdoptionAdjustmentMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITYUnaudited",
      "http://www.northwestsavingsbank.com/role/LoansReceivableChangesintheAllowanceforLossesonLoansReceivableDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "ASU 2022-02 Adoption",
        "label": "Cumulative Effect, Period of Adoption, Adjustment [Member]"
       }
      }
     },
     "auth_ref": [
      "r190",
      "r234",
      "r240",
      "r247",
      "r324",
      "r330",
      "r369",
      "r527",
      "r528",
      "r536",
      "r538",
      "r562",
      "r563",
      "r564",
      "r566",
      "r567",
      "r568",
      "r573",
      "r576",
      "r578",
      "r579",
      "r625"
     ]
    },
    "srt_CumulativeEffectPeriodOfAdoptionAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/srt/2024",
     "localname": "CumulativeEffectPeriodOfAdoptionAxis",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITYUnaudited",
      "http://www.northwestsavingsbank.com/role/LoansReceivableChangesintheAllowanceforLossesonLoansReceivableDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Cumulative Effect, Period of Adoption [Axis]",
        "label": "Cumulative Effect, Period of Adoption [Axis]"
       }
      }
     },
     "auth_ref": [
      "r190",
      "r234",
      "r240",
      "r247",
      "r324",
      "r330",
      "r369",
      "r527",
      "r528",
      "r536",
      "r538",
      "r562",
      "r563",
      "r564",
      "r566",
      "r567",
      "r568",
      "r573",
      "r576",
      "r578",
      "r579",
      "r625"
     ]
    },
    "srt_CumulativeEffectPeriodOfAdoptionDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/srt/2024",
     "localname": "CumulativeEffectPeriodOfAdoptionDomain",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITYUnaudited",
      "http://www.northwestsavingsbank.com/role/LoansReceivableChangesintheAllowanceforLossesonLoansReceivableDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Cumulative Effect, Period of Adoption [Domain]",
        "label": "Cumulative Effect, Period of Adoption [Domain]"
       }
      }
     },
     "auth_ref": [
      "r190",
      "r234",
      "r240",
      "r247",
      "r324",
      "r330",
      "r369",
      "r527",
      "r528",
      "r536",
      "r538",
      "r562",
      "r563",
      "r564",
      "r566",
      "r567",
      "r568",
      "r573",
      "r576",
      "r578",
      "r579",
      "r625"
     ]
    },
    "us-gaap_CurrencySwapMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "CurrencySwapMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsScheduleofDerivativeFinancialInstrumentsDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Foreign exchange swaps",
        "label": "Currency Swap [Member]",
        "documentation": "Swap involving the exchange of principal and interest in one currency for another currency."
       }
      }
     },
     "auth_ref": []
    },
    "dei_CurrentFiscalYearEndDate": {
     "xbrltype": "gMonthDayItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2024",
     "localname": "CurrentFiscalYearEndDate",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/Cover"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Current Fiscal Year End Date",
        "label": "Current Fiscal Year End Date",
        "documentation": "End date of current fiscal year in the format --MM-DD."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_DebtAndCapitalLeaseObligations": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DebtAndCapitalLeaseObligations",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails": {
       "parentTag": "us-gaap_LiabilitiesFairValueDisclosure",
       "weight": 1.0,
       "order": 3.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "verboseLabel": "Borrowed funds",
        "label": "Debt and Lease Obligation",
        "documentation": "Amount of short-term and long-term debt and lease obligation."
       }
      }
     },
     "auth_ref": [
      "r120",
      "r123"
     ]
    },
    "us-gaap_DebtAndEquitySecuritiesGainLoss": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DebtAndEquitySecuritiesGainLoss",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_NoninterestIncome",
       "weight": 1.0,
       "order": 8.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Loss on sale of investments",
        "label": "Debt and Equity Securities, Gain (Loss)",
        "documentation": "Amount of unrealized and realized gain (loss) on investment in debt and equity securities."
       }
      }
     },
     "auth_ref": [
      "r91",
      "r92"
     ]
    },
    "us-gaap_DebtDisclosureAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DebtDisclosureAbstract",
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Debt Disclosure [Abstract]",
        "label": "Debt Disclosure [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_DebtInstrumentAmountOutstandingAfterRepurchase": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "DebtInstrumentAmountOutstandingAfterRepurchase",
     "crdr": "credit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Amount outstanding after repurchase",
        "label": "Debt Instrument, Amount Outstanding After Repurchase",
        "documentation": "Debt Instrument, Amount Outstanding After Repurchase"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_DebtInstrumentBasisSpreadOnVariableRate1": {
     "xbrltype": "percentItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DebtInstrumentBasisSpreadOnVariableRate1",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsCapitalDebtSecuritiesDetails",
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Interest rate",
        "verboseLabel": "Basis spread on variable rate (as a percent)",
        "label": "Debt Instrument, Basis Spread on Variable Rate",
        "documentation": "Percentage points added to the reference rate to compute the variable rate on the debt instrument."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_DebtInstrumentFaceAmount": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DebtInstrumentFaceAmount",
     "crdr": "credit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Debt issued",
        "label": "Debt Instrument, Face Amount",
        "documentation": "Face (par) amount of debt instrument at time of issuance."
       }
      }
     },
     "auth_ref": [
      "r399",
      "r617",
      "r618",
      "r843",
      "r844",
      "r872"
     ]
    },
    "nwbi_DebtInstrumentInterestDeferralOptionMaximumPeriod": {
     "xbrltype": "durationItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "DebtInstrumentInterestDeferralOptionMaximumPeriod",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Maximum period for which interest payment on the subordinated debentures can be deferred (in years)",
        "label": "Debt Instrument, Interest Deferral Option Maximum Period",
        "documentation": "Represents the maximum period for which interest payment on the subordinated debentures can be deferred."
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_DebtInstrumentInterestPaymentDeferred": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "DebtInstrumentInterestPaymentDeferred",
     "crdr": "credit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Interest deferral",
        "label": "Debt Instrument, Interest Payment Deferred",
        "documentation": "Represents the amount of interest payment deferred on the subordinated debentures of the entity."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_DebtInstrumentInterestRateEffectivePercentage": {
     "xbrltype": "percentItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DebtInstrumentInterestRateEffectivePercentage",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsScheduleofBorrowedFundsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "verboseLabel": "Average rate",
        "label": "Debt Instrument, Interest Rate, Effective Percentage",
        "documentation": "Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium."
       }
      }
     },
     "auth_ref": [
      "r68",
      "r416",
      "r617",
      "r618",
      "r872"
     ]
    },
    "us-gaap_DebtInstrumentInterestRateStatedPercentage": {
     "xbrltype": "percentItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DebtInstrumentInterestRateStatedPercentage",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Stated rate (as a percent)",
        "label": "Debt Instrument, Interest Rate, Stated Percentage",
        "documentation": "Contractual interest rate for funds borrowed, under the debt agreement."
       }
      }
     },
     "auth_ref": [
      "r68",
      "r400"
     ]
    },
    "us-gaap_DebtInstrumentLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DebtInstrumentLineItems",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsCapitalDebtSecuritiesDetails",
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails",
      "http://www.northwestsavingsbank.com/role/BorrowedFundsScheduleofBorrowedFundsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Debt Instrument [Line Items]",
        "label": "Debt Instrument [Line Items]",
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table."
       }
      }
     },
     "auth_ref": [
      "r230",
      "r399",
      "r400",
      "r401",
      "r402",
      "r403",
      "r404",
      "r405",
      "r406",
      "r407",
      "r408",
      "r409",
      "r410",
      "r411",
      "r412",
      "r413",
      "r414",
      "r415",
      "r842",
      "r843",
      "r844",
      "r845",
      "r846",
      "r872",
      "r1002",
      "r1128",
      "r1129"
     ]
    },
    "nwbi_DebtInstrumentNumberOfAdvances": {
     "xbrltype": "integerItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "DebtInstrumentNumberOfAdvances",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Number of advances",
        "label": "Debt Instrument, Number Of Advances",
        "documentation": "Debt Instrument, Number Of Advances"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_DebtInstrumentRedemptionPeriodAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DebtInstrumentRedemptionPeriodAxis",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Debt Instrument, Redemption, Period [Axis]",
        "label": "Debt Instrument, Redemption, Period [Axis]",
        "documentation": "Information by period of debt redemption feature under terms of debt agreement."
       }
      }
     },
     "auth_ref": [
      "r144"
     ]
    },
    "us-gaap_DebtInstrumentRedemptionPeriodDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DebtInstrumentRedemptionPeriodDomain",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Debt Instrument, Redemption, Period [Domain]",
        "label": "Debt Instrument, Redemption, Period [Domain]",
        "documentation": "Period as defined under terms of the debt agreement for debt redemption features."
       }
      }
     },
     "auth_ref": [
      "r144"
     ]
    },
    "us-gaap_DebtInstrumentRedemptionPeriodFiveMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DebtInstrumentRedemptionPeriodFiveMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Debt Instrument, Redemption, Period Five",
        "label": "Debt Instrument, Redemption, Period Five [Member]",
        "documentation": "Period five representing fifth most current period of debt redemption features under terms of the debt agreement."
       }
      }
     },
     "auth_ref": [
      "r144"
     ]
    },
    "us-gaap_DebtInstrumentRedemptionPeriodFourMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DebtInstrumentRedemptionPeriodFourMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Debt Instrument, Redemption, Period Four",
        "label": "Debt Instrument, Redemption, Period Four [Member]",
        "documentation": "Period four representing fourth most current period of debt redemption features under terms of the debt agreement."
       }
      }
     },
     "auth_ref": [
      "r144"
     ]
    },
    "us-gaap_DebtInstrumentRedemptionPeriodOneMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DebtInstrumentRedemptionPeriodOneMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Debt Instrument, Redemption, Period One",
        "label": "Debt Instrument, Redemption, Period One [Member]",
        "documentation": "Period one representing most current period of debt redemption features under terms of the debt agreement."
       }
      }
     },
     "auth_ref": [
      "r144"
     ]
    },
    "nwbi_DebtInstrumentRedemptionPeriodSevenMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "DebtInstrumentRedemptionPeriodSevenMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Debt Instrument, Redemption, Period Seven",
        "label": "Debt Instrument, Redemption, Period Seven [Member]",
        "documentation": "Debt Instrument, Redemption, Period Seven"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_DebtInstrumentRedemptionPeriodSixMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "DebtInstrumentRedemptionPeriodSixMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Debt Instrument, Redemption, Period Six",
        "label": "Debt Instrument, Redemption, Period Six [Member]",
        "documentation": "Debt Instrument, Redemption, Period Six"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_DebtInstrumentRedemptionPeriodThreeMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DebtInstrumentRedemptionPeriodThreeMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Debt Instrument, Redemption, Period Three",
        "label": "Debt Instrument, Redemption, Period Three [Member]",
        "documentation": "Period three representing third most current period of debt redemption features under terms of the debt agreement."
       }
      }
     },
     "auth_ref": [
      "r144"
     ]
    },
    "us-gaap_DebtInstrumentRedemptionPeriodTwoMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DebtInstrumentRedemptionPeriodTwoMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Debt Instrument, Redemption, Period Two",
        "label": "Debt Instrument, Redemption, Period Two [Member]",
        "documentation": "Period two representing second most current period of debt redemption features under terms of the debt agreement."
       }
      }
     },
     "auth_ref": [
      "r144"
     ]
    },
    "us-gaap_DebtInstrumentRepurchaseAmount": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DebtInstrumentRepurchaseAmount",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Repurchase amount",
        "label": "Debt Instrument, Repurchase Amount",
        "documentation": "Fair value amount of debt instrument that was repurchased."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_DebtInstrumentTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DebtInstrumentTable",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsCapitalDebtSecuritiesDetails",
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails",
      "http://www.northwestsavingsbank.com/role/BorrowedFundsScheduleofBorrowedFundsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of Long-term Debt Instruments [Table]",
        "label": "Schedule of Long-Term Debt Instruments [Table]",
        "documentation": "Disclosure of information about long-term debt instrument or arrangement."
       }
      }
     },
     "auth_ref": [
      "r23",
      "r36",
      "r37",
      "r62",
      "r103",
      "r104",
      "r230",
      "r399",
      "r400",
      "r401",
      "r402",
      "r403",
      "r404",
      "r405",
      "r406",
      "r407",
      "r408",
      "r409",
      "r410",
      "r411",
      "r412",
      "r413",
      "r414",
      "r415",
      "r842",
      "r843",
      "r844",
      "r845",
      "r846",
      "r872",
      "r1002",
      "r1128",
      "r1129"
     ]
    },
    "nwbi_DebtIssuanceCostsAmortizationPeriod": {
     "xbrltype": "durationItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "DebtIssuanceCostsAmortizationPeriod",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Debt issuance amortization period (in years)",
        "label": "Debt Issuance Costs, Amortization Period",
        "documentation": "Debt Issuance Costs, Amortization Period"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_DebtSecuritiesAvailableForSaleAfterFiveThroughTenYearsGrossUnrealizedGain": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "DebtSecuritiesAvailableForSaleAfterFiveThroughTenYearsGrossUnrealizedGain",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails": {
       "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost",
       "weight": -1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Due after five years through ten years",
        "label": "Debt Securities, Available-for-sale, After Five Through Ten Years, Gross Unrealized Gain",
        "documentation": "Represents the gross unrealized gains for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities and which are expected to mature after five years and through ten years from the balance sheet date."
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_DebtSecuritiesAvailableForSaleAfterFiveThroughTenYearsGrossUnrealizedLoss": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "DebtSecuritiesAvailableForSaleAfterFiveThroughTenYearsGrossUnrealizedLoss",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails": {
       "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost",
       "weight": 1.0,
       "order": 3.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedLabel": "Due after five years through ten years",
        "label": "Debt Securities, Available-for-sale, After Five Through Ten Years, Gross Unrealized Loss",
        "documentation": "Represents the gross unrealized losses for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities and which are expected to mature after five years and through ten years from the balance sheet date."
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_DebtSecuritiesAvailableForSaleAfterOneThroughFiveYearsGrossUnrealizedGain": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "DebtSecuritiesAvailableForSaleAfterOneThroughFiveYearsGrossUnrealizedGain",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails": {
       "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost",
       "weight": -1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Due after one year through five years",
        "label": "Debt Securities, Available-for-sale, After One Through Five Years, Gross Unrealized Gain",
        "documentation": "Represents the gross unrealized gains for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities and which are expected to mature after one year and through five years from the balance sheet date."
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_DebtSecuritiesAvailableForSaleAfterOneThroughFiveYearsGrossUnrealizedLoss": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "DebtSecuritiesAvailableForSaleAfterOneThroughFiveYearsGrossUnrealizedLoss",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails": {
       "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost",
       "weight": 1.0,
       "order": 3.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedLabel": "Due after one year through five years",
        "label": "Debt Securities, Available-for-sale, After One Through Five Years, Gross Unrealized Loss",
        "documentation": "Represents the gross unrealized losses for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities and which are expected to mature after one year and through five years from the balance sheet date."
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_DebtSecuritiesAvailableForSaleAfterTenYearsGrossUnrealizedGain": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "DebtSecuritiesAvailableForSaleAfterTenYearsGrossUnrealizedGain",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails": {
       "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost",
       "weight": -1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Due after ten years",
        "label": "Debt Securities, Available-for-sale, After Ten Years, Gross Unrealized Gain",
        "documentation": "Represents the gross unrealized gains for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities and which are expected to mature after ten years from the balance sheet date."
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_DebtSecuritiesAvailableForSaleAfterTenYearsGrossUnrealizedLoss": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "DebtSecuritiesAvailableForSaleAfterTenYearsGrossUnrealizedLoss",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails": {
       "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost",
       "weight": 1.0,
       "order": 3.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedLabel": "Due after ten years",
        "label": "Debt Securities, Available-for-sale, After Ten Years, Gross Unrealized Loss",
        "documentation": "Represents the gross unrealized losses for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities and which are expected to mature after ten years from the balance sheet date."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails": {
       "parentTag": null,
       "weight": null,
       "order": null,
       "root": true
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnauditedParenthetical",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Marketable securities available-for-sale, amortized cost",
        "totalLabel": "Residential mortgage-backed securities",
        "label": "Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss",
        "documentation": "Amortized cost excluding accrued interest, before allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale)."
       }
      }
     },
     "auth_ref": [
      "r347"
     ]
    },
    "us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DebtSecuritiesAvailableForSaleExcludingAccruedInterest",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "nwbi_CashCashEquivalentsAndMarketableSecurities",
       "weight": 1.0,
       "order": 1.0
      },
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails": {
       "parentTag": "us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss",
       "weight": 1.0,
       "order": 3.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Marketable securities available-for-sale (amortized cost of $1,202,354 and $1,240,003, respectively)",
        "verboseLabel": "Fair value",
        "label": "Debt Securities, Available-for-Sale, Excluding Accrued Interest",
        "documentation": "Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale)."
       }
      }
     },
     "auth_ref": [
      "r1061"
     ]
    },
    "us-gaap_DebtSecuritiesAvailableForSaleTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DebtSecuritiesAvailableForSaleTable",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableforsalebyContractualMaturityDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesFairValueofandGrossUnrealizedLossesonInvestmentSecuritiesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Debt Securities, Available-for-sale [Table]",
        "label": "Debt Securities, Available-for-Sale [Table]",
        "documentation": "Disclosure of information about investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale)."
       }
      }
     },
     "auth_ref": [
      "r288",
      "r289",
      "r290",
      "r291",
      "r292",
      "r293",
      "r294",
      "r295",
      "r296",
      "r297",
      "r298",
      "r299"
     ]
    },
    "nwbi_DebtSecuritiesHeldToMaturityAfterFiveThroughTenYearsGrossUnrealizedGain": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "DebtSecuritiesHeldToMaturityAfterFiveThroughTenYearsGrossUnrealizedGain",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails": {
       "parentTag": "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount",
       "weight": -1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Due after five years through ten years",
        "label": "Debt Securities, Held-to-Maturity, After Five Through Ten Years, Gross Unrealized Gain",
        "documentation": "Debt Securities, Held-to-Maturity, After Five Through Ten Years, Gross Unrealized Gain"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_DebtSecuritiesHeldToMaturityAfterFiveThroughTenYearsGrossUnrealizedLoss": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "DebtSecuritiesHeldToMaturityAfterFiveThroughTenYearsGrossUnrealizedLoss",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails": {
       "parentTag": "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount",
       "weight": 1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedTerseLabel": "Due after five years through ten years",
        "label": "Debt Securities, Held-to-Maturity, After Five Through Ten Years, Gross Unrealized Loss",
        "documentation": "Debt Securities, Held-to-Maturity, After Five Through Ten Years, Gross Unrealized Loss"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_DebtSecuritiesHeldToMaturityAfterOneThroughFiveYearsGrossUnrealizedGain": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "DebtSecuritiesHeldToMaturityAfterOneThroughFiveYearsGrossUnrealizedGain",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails": {
       "parentTag": "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount",
       "weight": -1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Due after one year through five years",
        "label": "Debt Securities, Held-to-Maturity, After One Through Five Years, Gross Unrealized Gain",
        "documentation": "Debt Securities, Held-to-Maturity, After One Through Five Years, Gross Unrealized Gain"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_DebtSecuritiesHeldToMaturityAfterOneThroughFiveYearsGrossUnrealizedLoss": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "DebtSecuritiesHeldToMaturityAfterOneThroughFiveYearsGrossUnrealizedLoss",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails": {
       "parentTag": "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount",
       "weight": 1.0,
       "order": 3.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedTerseLabel": "Due after one year through five years",
        "label": "Debt Securities, Held-to-Maturity, After One Through Five Years, Gross Unrealized Loss",
        "documentation": "Debt Securities, Held-to-Maturity, After One Through Five Years, Gross Unrealized Loss"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_DebtSecuritiesHeldToMaturityCreditQualityIndicatorLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DebtSecuritiesHeldToMaturityCreditQualityIndicatorLineItems",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesCreditQualityofHeldToMaturitySecuritiesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]",
        "label": "Debt Securities, Held-to-Maturity, Credit Quality Indicator [Line Items]",
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table."
       }
      }
     },
     "auth_ref": [
      "r1060"
     ]
    },
    "us-gaap_DebtSecuritiesHeldToMaturityCreditQualityIndicatorTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DebtSecuritiesHeldToMaturityCreditQualityIndicatorTable",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesCreditQualityofHeldToMaturitySecuritiesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Debt Securities, Held-to-maturity, Credit Quality Indicator [Table]",
        "label": "Debt Securities, Held-to-Maturity, Credit Quality Indicator [Table]",
        "documentation": "Disclosure of information about credit quality indicator for investment in debt security measured at amortized cost (held-to-maturity)."
       }
      }
     },
     "auth_ref": [
      "r1060"
     ]
    },
    "us-gaap_DebtSecuritiesHeldToMaturityCreditQualityIndicatorTableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DebtSecuritiesHeldToMaturityCreditQualityIndicatorTableTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of credit quality of held-to-maturity securities",
        "label": "Debt Securities, Held-to-Maturity, Credit Quality Indicator [Table Text Block]",
        "documentation": "Tabular disclosure of credit quality indicator for investment in debt security measured at amortized cost (held-to-maturity)."
       }
      }
     },
     "auth_ref": [
      "r1060"
     ]
    },
    "us-gaap_DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "nwbi_CashCashEquivalentsAndMarketableSecurities",
       "weight": 1.0,
       "order": 2.0
      },
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails": {
       "parentTag": null,
       "weight": null,
       "order": null,
       "root": true
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "verboseLabel": "Marketable securities held-to-maturity (fair value of $663,292 and $699,506, respectively)",
        "totalLabel": "Amortized cost",
        "label": "Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss",
        "documentation": "Amount excluding accrued interest, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity)."
       }
      }
     },
     "auth_ref": [
      "r303",
      "r305",
      "r1057"
     ]
    },
    "us-gaap_DebtSecuritiesHeldToMaturityExcludingAccruedInterestBeforeAllowanceForCreditLoss": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DebtSecuritiesHeldToMaturityExcludingAccruedInterestBeforeAllowanceForCreditLoss",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesCreditQualityofHeldToMaturitySecuritiesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Held-to-maturity securities",
        "label": "Debt Securities, Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss",
        "documentation": "Amount excluding accrued interest, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity)."
       }
      }
     },
     "auth_ref": [
      "r342",
      "r344",
      "r1057"
     ]
    },
    "us-gaap_DeferredFinanceCostsNet": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DeferredFinanceCostsNet",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Debt issuance costs",
        "label": "Debt Issuance Costs, Net",
        "documentation": "Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs."
       }
      }
     },
     "auth_ref": [
      "r1096",
      "r1127",
      "r1128",
      "r1129"
     ]
    },
    "us-gaap_DeferredIncomeTaxExpenseBenefit": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DeferredIncomeTaxExpenseBenefit",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0,
       "order": 16.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Deferred income tax expense",
        "label": "Deferred Income Tax Expense (Benefit)",
        "documentation": "Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations."
       }
      }
     },
     "auth_ref": [
      "r12",
      "r177",
      "r1004"
     ]
    },
    "us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DefinedBenefitPlanAmortizationOfGainsLosses",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/PensionandOtherPostRetirementBenefitsDetails": {
       "parentTag": "us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost",
       "weight": -1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/PensionandOtherPostRetirementBenefitsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedLabel": "Amortization of the net loss",
        "label": "Defined Benefit Plan, Amortization of Gain (Loss)",
        "documentation": "Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan."
       }
      }
     },
     "auth_ref": [
      "r425",
      "r463",
      "r484",
      "r850",
      "r851"
     ]
    },
    "us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DefinedBenefitPlanAmortizationOfPriorServiceCostCredit",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/PensionandOtherPostRetirementBenefitsDetails": {
       "parentTag": "us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost",
       "weight": 1.0,
       "order": 3.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/PensionandOtherPostRetirementBenefitsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Amortization of prior service cost",
        "label": "Defined Benefit Plan, Amortization of Prior Service Cost (Credit)",
        "documentation": "Amount of prior service cost (credit) recognized in net periodic benefit cost (credit) of defined benefit plan."
       }
      }
     },
     "auth_ref": [
      "r425",
      "r464",
      "r485",
      "r850",
      "r851"
     ]
    },
    "us-gaap_DefinedBenefitPlanDisclosureLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DefinedBenefitPlanDisclosureLineItems",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/PensionandOtherPostRetirementBenefitsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Employee benefit plans",
        "label": "Defined Benefit Plan Disclosure [Line Items]",
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DefinedBenefitPlanExpectedReturnOnPlanAssets",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/PensionandOtherPostRetirementBenefitsDetails": {
       "parentTag": "us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost",
       "weight": -1.0,
       "order": 5.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/PensionandOtherPostRetirementBenefitsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedLabel": "Expected return on plan assets",
        "label": "Defined Benefit Plan, Expected Return (Loss) on Plan Assets",
        "documentation": "Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan."
       }
      }
     },
     "auth_ref": [
      "r425",
      "r462",
      "r483",
      "r850",
      "r851"
     ]
    },
    "us-gaap_DefinedBenefitPlanInterestCost": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DefinedBenefitPlanInterestCost",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/PensionandOtherPostRetirementBenefitsDetails": {
       "parentTag": "us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost",
       "weight": 1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/PensionandOtherPostRetirementBenefitsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Interest cost",
        "label": "Defined Benefit Plan, Interest Cost",
        "documentation": "Amount of cost recognized for passage of time related to defined benefit plan."
       }
      }
     },
     "auth_ref": [
      "r425",
      "r429",
      "r461",
      "r482",
      "r850",
      "r851"
     ]
    },
    "us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DefinedBenefitPlanNetPeriodicBenefitCost",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/PensionandOtherPostRetirementBenefitsDetails": {
       "parentTag": null,
       "weight": null,
       "order": null,
       "root": true
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/PensionandOtherPostRetirementBenefitsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Net periodic cost",
        "label": "Defined Benefit Plan, Net Periodic Benefit Cost (Credit)",
        "documentation": "Amount of net periodic benefit cost (credit) for defined benefit plan."
       }
      }
     },
     "auth_ref": [
      "r459",
      "r480",
      "r850",
      "r851"
     ]
    },
    "us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DefinedBenefitPlanNetPeriodicBenefitCostAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/PensionandOtherPostRetirementBenefitsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Components\u00a0of\u00a0net\u00a0periodic\u00a0benefit\u00a0cost",
        "label": "Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_DefinedBenefitPlanServiceCost": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DefinedBenefitPlanServiceCost",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/PensionandOtherPostRetirementBenefitsDetails": {
       "parentTag": "us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost",
       "weight": 1.0,
       "order": 4.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/PensionandOtherPostRetirementBenefitsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Service cost",
        "label": "Defined Benefit Plan, Service Cost",
        "documentation": "Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan."
       }
      }
     },
     "auth_ref": [
      "r427",
      "r460",
      "r481",
      "r850",
      "r851"
     ]
    },
    "us-gaap_Deposits": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "Deposits",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Total deposits",
        "label": "Deposits",
        "documentation": "The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others."
       }
      }
     },
     "auth_ref": [
      "r119"
     ]
    },
    "us-gaap_DepositsFairValueDisclosure": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DepositsFairValueDisclosure",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails": {
       "parentTag": "us-gaap_LiabilitiesFairValueDisclosure",
       "weight": 1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Time deposits",
        "label": "Deposits, Fair Value Disclosure",
        "documentation": "Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits."
       }
      }
     },
     "auth_ref": [
      "r1108",
      "r1109",
      "r1119"
     ]
    },
    "us-gaap_DepositsMoneyMarketDeposits": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DepositsMoneyMarketDeposits",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "us-gaap_Deposits",
       "weight": 1.0,
       "order": 3.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Money market deposit accounts",
        "label": "Deposits, Money Market Deposits",
        "documentation": "Amount of deposits in accounts that offer many of the same services as checking accounts although transactions may be somewhat more limited, share some of the characteristics of a money market fund and are insured by the Federal government, also known as money market accounts."
       }
      }
     },
     "auth_ref": [
      "r119"
     ]
    },
    "us-gaap_DepositsSavingsDeposits": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DepositsSavingsDeposits",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "us-gaap_Deposits",
       "weight": 1.0,
       "order": 4.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Savings deposits",
        "label": "Deposits, Savings Deposits",
        "documentation": "Amount of interest bearing deposits with no stated maturity, which may include passbook and statement savings accounts and money-market deposit accounts (MMDAs)."
       }
      }
     },
     "auth_ref": [
      "r119"
     ]
    },
    "us-gaap_DepreciationAmortizationAndAccretionNet": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DepreciationAmortizationAndAccretionNet",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0,
       "order": 3.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Net depreciation, amortization and accretion",
        "label": "Depreciation, Amortization and Accretion, Net",
        "documentation": "The aggregate net amount of depreciation, amortization, and accretion recognized during an accounting period. As a noncash item, the net amount is added back to net income when calculating cash provided by or used in operations using the indirect method."
       }
      }
     },
     "auth_ref": [
      "r12"
     ]
    },
    "us-gaap_DerivativeAssetNotionalAmount": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DerivativeAssetNotionalAmount",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsScheduleofDerivativeFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "verboseLabel": "Asset derivatives, notional amount",
        "label": "Derivative Asset, Notional Amount",
        "documentation": "Nominal or face amount used to calculate payments on the derivative asset."
       }
      }
     },
     "auth_ref": [
      "r793",
      "r799",
      "r802",
      "r805",
      "r1102",
      "r1103",
      "r1104"
     ]
    },
    "us-gaap_DerivativeAssetStatementOfFinancialPositionExtensibleEnumeration": {
     "xbrltype": "enumerationSetItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DerivativeAssetStatementOfFinancialPositionExtensibleEnumeration",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsScheduleofDerivativeFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Derivative Asset, Statement of Financial Position [Extensible Enumeration]",
        "label": "Derivative Asset, Statement of Financial Position [Extensible Enumeration]",
        "documentation": "Indicates line item in statement of financial position that includes derivative asset."
       }
      }
     },
     "auth_ref": [
      "r555"
     ]
    },
    "us-gaap_DerivativeAssets": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DerivativeAssets",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails": {
       "parentTag": "us-gaap_AssetsFairValueDisclosure",
       "weight": 1.0,
       "order": 2.0
      },
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails": {
       "parentTag": "us-gaap_AssetsFairValueDisclosure",
       "weight": 1.0,
       "order": 3.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsScheduleofDerivativeFinancialInstrumentsDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Derivative assets",
        "verboseLabel": "Asset derivatives, fair value",
        "label": "Derivative Asset",
        "documentation": "Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset."
       }
      }
     },
     "auth_ref": [
      "r200",
      "r201",
      "r582",
      "r583",
      "r596",
      "r609",
      "r723",
      "r724",
      "r725",
      "r727",
      "r728",
      "r729",
      "r730",
      "r731",
      "r733",
      "r734",
      "r748",
      "r749",
      "r793",
      "r800",
      "r803",
      "r804",
      "r806",
      "r807",
      "r822",
      "r861",
      "r865",
      "r879",
      "r1110",
      "r1111",
      "r1112",
      "r1155"
     ]
    },
    "us-gaap_DerivativeContractTypeDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DerivativeContractTypeDomain",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsKeyCharacteristicsofInterestRateDerivativeTransactionsDetails",
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsNarrativeDetails",
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsScheduleofDerivativeFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Derivative Contract [Domain]",
        "label": "Derivative Contract [Domain]",
        "documentation": "Financial instrument or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset."
       }
      }
     },
     "auth_ref": [
      "r731",
      "r734",
      "r747",
      "r748",
      "r749",
      "r750",
      "r751",
      "r752",
      "r753",
      "r755",
      "r756",
      "r757",
      "r758",
      "r769",
      "r770",
      "r771",
      "r772",
      "r775",
      "r776",
      "r777",
      "r778",
      "r793",
      "r796",
      "r803",
      "r806",
      "r877",
      "r879",
      "r1113",
      "r1114",
      "r1115",
      "r1116",
      "r1117",
      "r1118",
      "r1120",
      "r1121"
     ]
    },
    "nwbi_DerivativeEffectiveInterestRate": {
     "xbrltype": "percentItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "DerivativeEffectiveInterestRate",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsKeyCharacteristicsofInterestRateDerivativeTransactionsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Effective rate",
        "label": "Derivative, Effective Interest Rate",
        "documentation": "Derivative, Effective Interest Rate"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_DerivativeInstrumentRiskAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DerivativeInstrumentRiskAxis",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsKeyCharacteristicsofInterestRateDerivativeTransactionsDetails",
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsNarrativeDetails",
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsScheduleofDerivativeFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Derivative Instrument [Axis]",
        "label": "Derivative Instrument [Axis]",
        "documentation": "Information by type of derivative contract."
       }
      }
     },
     "auth_ref": [
      "r49",
      "r51",
      "r53",
      "r112",
      "r731",
      "r734",
      "r747",
      "r748",
      "r749",
      "r750",
      "r751",
      "r752",
      "r753",
      "r755",
      "r756",
      "r757",
      "r758",
      "r769",
      "r770",
      "r771",
      "r772",
      "r775",
      "r776",
      "r777",
      "r778",
      "r793",
      "r796",
      "r803",
      "r806",
      "r822",
      "r877",
      "r879",
      "r1113",
      "r1114",
      "r1115",
      "r1116",
      "r1117",
      "r1118",
      "r1120",
      "r1121"
     ]
    },
    "us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract",
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Derivative Instruments and Hedging Activities Disclosure [Abstract]",
        "label": "Derivative Instruments and Hedging Activities Disclosure [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstruments"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Derivative Financial Instruments",
        "label": "Derivative Instruments and Hedging Activities Disclosure [Text Block]",
        "documentation": "The entire disclosure for derivative instruments and hedging activities including, but not limited to, risk management strategies, non-hedging derivative instruments, assets, liabilities, revenue and expenses, and methodologies and assumptions used in determining the amounts."
       }
      }
     },
     "auth_ref": [
      "r111",
      "r558",
      "r569"
     ]
    },
    "us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsGainLossonDerivativeFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Derivative Instruments, Gain (Loss) [Table]",
        "label": "Derivative Instruments, Gain (Loss) [Table]",
        "documentation": "Disclosure of information about the location and amount of derivative instruments and nonderivative instruments designated as hedging instruments reported before netting adjustments, and the amount of gain (loss) on derivative instruments and nonderivative instruments designated and qualified as hedging instruments."
       }
      }
     },
     "auth_ref": [
      "r20",
      "r49",
      "r51",
      "r53",
      "r56",
      "r57",
      "r556"
     ]
    },
    "us-gaap_DerivativeInstrumentsGainLossLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DerivativeInstrumentsGainLossLineItems",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsGainLossonDerivativeFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Derivative Instruments, Gain (Loss) [Line Items]",
        "label": "Derivative Instruments, Gain (Loss) [Line Items]",
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table."
       }
      }
     },
     "auth_ref": [
      "r556"
     ]
    },
    "us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet",
     "crdr": "credit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsGainLossonDerivativeFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "(Decrease)/increase in other income",
        "label": "Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net",
        "documentation": "Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments."
       }
      }
     },
     "auth_ref": [
      "r52",
      "r978"
     ]
    },
    "us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNetAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNetAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsGainLossonDerivativeFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Non-hedging swap derivatives:",
        "label": "Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_DerivativeLiabilities": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DerivativeLiabilities",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails": {
       "parentTag": "us-gaap_FinancialLiabilitiesFairValueDisclosure",
       "weight": 1.0,
       "order": 1.0
      },
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails": {
       "parentTag": "us-gaap_LiabilitiesFairValueDisclosure",
       "weight": 1.0,
       "order": 5.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsScheduleofDerivativeFinancialInstrumentsDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Derivative liabilities",
        "verboseLabel": "Liability derivatives, fair value",
        "label": "Derivative Liability",
        "documentation": "Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset."
       }
      }
     },
     "auth_ref": [
      "r200",
      "r201",
      "r582",
      "r583",
      "r596",
      "r609",
      "r723",
      "r724",
      "r725",
      "r727",
      "r729",
      "r730",
      "r731",
      "r733",
      "r734",
      "r755",
      "r757",
      "r758",
      "r796",
      "r797",
      "r800",
      "r803",
      "r804",
      "r806",
      "r807",
      "r822",
      "r1110",
      "r1111",
      "r1112",
      "r1155"
     ]
    },
    "us-gaap_DerivativeLiabilityNotionalAmount": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DerivativeLiabilityNotionalAmount",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsScheduleofDerivativeFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "verboseLabel": "Liability derivatives, notional amount",
        "label": "Derivative Liability, Notional Amount",
        "documentation": "Nominal or face amount used to calculate payments on the derivative liability."
       }
      }
     },
     "auth_ref": [
      "r795",
      "r799",
      "r801",
      "r805",
      "r1102",
      "r1103",
      "r1104"
     ]
    },
    "us-gaap_DerivativeLiabilityStatementOfFinancialPositionExtensibleEnumeration": {
     "xbrltype": "enumerationSetItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DerivativeLiabilityStatementOfFinancialPositionExtensibleEnumeration",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsScheduleofDerivativeFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Derivative Liability, Statement of Financial Position [Extensible Enumeration]",
        "label": "Derivative Liability, Statement of Financial Position [Extensible Enumeration]",
        "documentation": "Indicates line item in statement of financial position that includes derivative liability."
       }
      }
     },
     "auth_ref": [
      "r555"
     ]
    },
    "us-gaap_DerivativeLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DerivativeLineItems",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsKeyCharacteristicsofInterestRateDerivativeTransactionsDetails",
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsNarrativeDetails",
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsScheduleofDerivativeFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Derivative [Line Items]",
        "label": "Derivative [Line Items]",
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table."
       }
      }
     },
     "auth_ref": [
      "r569"
     ]
    },
    "us-gaap_DerivativeNotionalAmount": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DerivativeNotionalAmount",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsKeyCharacteristicsofInterestRateDerivativeTransactionsDetails",
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "verboseLabel": "Derivative, notional amount",
        "netLabel": "Notional amount",
        "label": "Derivative, Notional Amount",
        "documentation": "Nominal or face amount used to calculate payment on derivative."
       }
      }
     },
     "auth_ref": [
      "r1103",
      "r1104"
     ]
    },
    "us-gaap_DerivativeNumberOfInstrumentsHeld": {
     "xbrltype": "integerItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DerivativeNumberOfInstrumentsHeld",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Number of derivatives",
        "label": "Derivative, Number of Instruments Held",
        "documentation": "The number of derivative instruments of a particular group held by the entity."
       }
      }
     },
     "auth_ref": [
      "r46",
      "r47",
      "r733",
      "r793",
      "r794",
      "r798",
      "r879"
     ]
    },
    "us-gaap_DerivativeRemainingMaturity1": {
     "xbrltype": "durationItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DerivativeRemainingMaturity1",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsKeyCharacteristicsofInterestRateDerivativeTransactionsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Remaining term (in months)",
        "label": "Derivative, Remaining Maturity",
        "documentation": "Period remaining until the derivative contract matures, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_DerivativeTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DerivativeTable",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsKeyCharacteristicsofInterestRateDerivativeTransactionsDetails",
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsNarrativeDetails",
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsScheduleofDerivativeFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Derivative [Table]",
        "label": "Derivative [Table]",
        "documentation": "Disclosure of information about derivative instrument or group of derivative instruments, including, but not limited to, type of derivative instrument, risk being hedged, notional amount, hedge designation, related hedged item, inception date, and maturity date."
       }
      }
     },
     "auth_ref": [
      "r20",
      "r44",
      "r45",
      "r47",
      "r48",
      "r50",
      "r51",
      "r54",
      "r55",
      "r57",
      "r569"
     ]
    },
    "us-gaap_DerivativeTermOfContract": {
     "xbrltype": "durationItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DerivativeTermOfContract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Derivative contract maturities (in years)",
        "label": "Derivative, Term of Contract",
        "documentation": "Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_DesignatedAsHedgingInstrumentMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DesignatedAsHedgingInstrumentMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsKeyCharacteristicsofInterestRateDerivativeTransactionsDetails",
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsNarrativeDetails",
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsScheduleofDerivativeFinancialInstrumentsDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Derivatives Designated as Hedging Instruments",
        "label": "Designated as Hedging Instrument [Member]",
        "documentation": "Derivative instrument designated as hedging instrument under Generally Accepted Accounting Principles (GAAP)."
       }
      }
     },
     "auth_ref": [
      "r20"
     ]
    },
    "us-gaap_DividendIncomeOperating": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DividendIncomeOperating",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_InterestAndDividendIncomeOperating",
       "weight": 1.0,
       "order": 5.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "FHLB stock dividends",
        "label": "Dividend Income, Operating",
        "documentation": "Amount of operating dividend income on securities."
       }
      }
     },
     "auth_ref": [
      "r133",
      "r720",
      "r763",
      "r810",
      "r811",
      "r887",
      "r888",
      "r1162"
     ]
    },
    "us-gaap_DividendsCash": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "DividendsCash",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITYUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedTerseLabel": "Dividends paid",
        "label": "Dividends, Cash",
        "documentation": "Amount of paid and unpaid cash dividends declared for classes of stock, for example, but not limited to, common and preferred."
       }
      }
     },
     "auth_ref": [
      "r8",
      "r105"
     ]
    },
    "dei_DocumentFiscalPeriodFocus": {
     "xbrltype": "fiscalPeriodItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2024",
     "localname": "DocumentFiscalPeriodFocus",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/Cover"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Document Fiscal Period Focus",
        "label": "Document Fiscal Period Focus",
        "documentation": "Fiscal period values are FY, Q1, Q2, and Q3. 1st, 2nd and 3rd quarter 10-Q or 10-QT statements have value Q1, Q2, and Q3 respectively, with 10-K, 10-KT or other fiscal year statements having FY."
       }
      }
     },
     "auth_ref": []
    },
    "dei_DocumentFiscalYearFocus": {
     "xbrltype": "gYearItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2024",
     "localname": "DocumentFiscalYearFocus",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/Cover"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Document Fiscal Year Focus",
        "label": "Document Fiscal Year Focus",
        "documentation": "This is focus fiscal year of the document report in YYYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006."
       }
      }
     },
     "auth_ref": []
    },
    "dei_DocumentPeriodEndDate": {
     "xbrltype": "dateItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2024",
     "localname": "DocumentPeriodEndDate",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/Cover"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Document Period End Date",
        "label": "Document Period End Date",
        "documentation": "For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD."
       }
      }
     },
     "auth_ref": []
    },
    "dei_DocumentQuarterlyReport": {
     "xbrltype": "booleanItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2024",
     "localname": "DocumentQuarterlyReport",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/Cover"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Document Quarterly Report",
        "label": "Document Quarterly Report",
        "documentation": "Boolean flag that is true only for a form used as an quarterly report."
       }
      }
     },
     "auth_ref": [
      "r893"
     ]
    },
    "dei_DocumentTransitionReport": {
     "xbrltype": "booleanItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2024",
     "localname": "DocumentTransitionReport",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/Cover"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Document Transition Report",
        "label": "Document Transition Report",
        "documentation": "Boolean flag that is true only for a form used as a transition report."
       }
      }
     },
     "auth_ref": [
      "r925"
     ]
    },
    "dei_DocumentType": {
     "xbrltype": "submissionTypeItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2024",
     "localname": "DocumentType",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/Cover"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Document Type",
        "label": "Document Type",
        "documentation": "The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'."
       }
      }
     },
     "auth_ref": []
    },
    "ecd_DvddsOrOthrErngsPdOnEqtyAwrdsNtOthrwsRflctdInTtlCompForCvrdYrMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "DvddsOrOthrErngsPdOnEqtyAwrdsNtOthrwsRflctdInTtlCompForCvrdYrMember",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year",
        "label": "Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member]"
       }
      }
     },
     "auth_ref": [
      "r936"
     ]
    },
    "us-gaap_EarningsPerShareAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "EarningsPerShareAbstract",
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Earnings Per Share [Abstract]",
        "label": "Earnings Per Share [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_EarningsPerShareBasic": {
     "xbrltype": "perShareItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "EarningsPerShareBasic",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited",
      "http://www.northwestsavingsbank.com/role/EarningsPerShareComputationofBasicandDilutedEarningsPerShareDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Basic earnings per share (in dollars per share)",
        "label": "Earnings Per Share, Basic",
        "documentation": "The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period."
       }
      }
     },
     "auth_ref": [
      "r220",
      "r238",
      "r239",
      "r240",
      "r241",
      "r242",
      "r243",
      "r249",
      "r252",
      "r260",
      "r261",
      "r262",
      "r267",
      "r540",
      "r549",
      "r579",
      "r580",
      "r671",
      "r699",
      "r826"
     ]
    },
    "us-gaap_EarningsPerShareDiluted": {
     "xbrltype": "perShareItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "EarningsPerShareDiluted",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited",
      "http://www.northwestsavingsbank.com/role/EarningsPerShareComputationofBasicandDilutedEarningsPerShareDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Diluted earnings per share (in dollars per share)",
        "label": "Earnings Per Share, Diluted",
        "documentation": "The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period."
       }
      }
     },
     "auth_ref": [
      "r220",
      "r238",
      "r239",
      "r240",
      "r241",
      "r242",
      "r243",
      "r252",
      "r260",
      "r261",
      "r262",
      "r267",
      "r540",
      "r549",
      "r579",
      "r580",
      "r671",
      "r699",
      "r826"
     ]
    },
    "us-gaap_EarningsPerShareDilutedLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "EarningsPerShareDilutedLineItems",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/EarningsPerShareComputationofBasicandDilutedEarningsPerShareDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]",
        "label": "Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]",
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table."
       }
      }
     },
     "auth_ref": [
      "r252",
      "r253",
      "r260"
     ]
    },
    "nwbi_EarningsPerShareDilutedMethodAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "EarningsPerShareDilutedMethodAxis",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/EarningsPerShareComputationofBasicandDilutedEarningsPerShareDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Earnings Per Share, Diluted, Method [Axis]",
        "label": "Earnings Per Share, Diluted, Method [Axis]",
        "documentation": "Earnings Per Share, Diluted, Method"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_EarningsPerShareDilutedMethodDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "EarningsPerShareDilutedMethodDomain",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/EarningsPerShareComputationofBasicandDilutedEarningsPerShareDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Earnings Per Share, Diluted, Method [Domain]",
        "label": "Earnings Per Share, Diluted, Method [Domain]",
        "documentation": "Method used to calculate diluted earnings per share (EPS)."
       }
      }
     },
     "auth_ref": [
      "r264"
     ]
    },
    "us-gaap_EarningsPerShareTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "EarningsPerShareTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/EarningsPerShare"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Earnings Per Share",
        "label": "Earnings Per Share [Text Block]",
        "documentation": "The entire disclosure for earnings per share."
       }
      }
     },
     "auth_ref": [
      "r248",
      "r263",
      "r265",
      "r266"
     ]
    },
    "us-gaap_EarningsPerShareTreasuryStockMethodMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "EarningsPerShareTreasuryStockMethodMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/EarningsPerShareComputationofBasicandDilutedEarningsPerShareDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Earnings Per Share, Treasury Stock Method",
        "label": "Earnings Per Share, Treasury Stock Method [Member]",
        "documentation": "Method of calculating diluted earnings per share (EPS) by recognizing use of proceeds that could be obtained upon exercise of option and warrant, assuming that proceeds would be used to purchase common stock at average market price."
       }
      }
     },
     "auth_ref": [
      "r825"
     ]
    },
    "us-gaap_EarningsPerShareTwoClassMethodMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "EarningsPerShareTwoClassMethodMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/EarningsPerShareComputationofBasicandDilutedEarningsPerShareDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Earnings Per Share, Two-Class Method",
        "label": "Earnings Per Share, Two-Class Method [Member]",
        "documentation": "Method of calculating diluted earnings per share (EPS) by using earnings allocation formula that determines EPS for each class of common stock and participating security according to dividend declared and accumulated and participation rights in undistributed earnings."
       }
      }
     },
     "auth_ref": [
      "r825"
     ]
    },
    "us-gaap_EmployeeStockOptionMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "EmployeeStockOptionMember",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Employee Stock Option",
        "label": "Share-Based Payment Arrangement, Option [Member]",
        "documentation": "Share-based payment arrangement granting right, subject to vesting and other restrictions, to purchase or sell certain number of shares at predetermined price for specified period of time."
       }
      }
     },
     "auth_ref": []
    },
    "dei_EntityAddressAddressLine1": {
     "xbrltype": "normalizedStringItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2024",
     "localname": "EntityAddressAddressLine1",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/Cover"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Entity Address, Address Line One",
        "label": "Entity Address, Address Line One",
        "documentation": "Address Line 1 such as Attn, Building Name, Street Name"
       }
      }
     },
     "auth_ref": []
    },
    "dei_EntityAddressAddressLine2": {
     "xbrltype": "normalizedStringItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2024",
     "localname": "EntityAddressAddressLine2",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/Cover"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Entity Address, Address Line Two",
        "label": "Entity Address, Address Line Two",
        "documentation": "Address Line 2 such as Street or Suite number"
       }
      }
     },
     "auth_ref": []
    },
    "dei_EntityAddressCityOrTown": {
     "xbrltype": "normalizedStringItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2024",
     "localname": "EntityAddressCityOrTown",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/Cover"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Entity Address, City or Town",
        "label": "Entity Address, City or Town",
        "documentation": "Name of the City or Town"
       }
      }
     },
     "auth_ref": []
    },
    "dei_EntityAddressPostalZipCode": {
     "xbrltype": "normalizedStringItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2024",
     "localname": "EntityAddressPostalZipCode",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/Cover"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Entity Address, Postal Zip Code",
        "label": "Entity Address, Postal Zip Code",
        "documentation": "Code for the postal or zip code"
       }
      }
     },
     "auth_ref": []
    },
    "dei_EntityAddressStateOrProvince": {
     "xbrltype": "stateOrProvinceItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2024",
     "localname": "EntityAddressStateOrProvince",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/Cover"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Entity Address, State or Province",
        "label": "Entity Address, State or Province",
        "documentation": "Name of the state or province."
       }
      }
     },
     "auth_ref": []
    },
    "dei_EntityCentralIndexKey": {
     "xbrltype": "centralIndexKeyItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2024",
     "localname": "EntityCentralIndexKey",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/Cover"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Entity Central Index Key",
        "label": "Entity Central Index Key",
        "documentation": "A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK."
       }
      }
     },
     "auth_ref": [
      "r891"
     ]
    },
    "dei_EntityCommonStockSharesOutstanding": {
     "xbrltype": "sharesItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2024",
     "localname": "EntityCommonStockSharesOutstanding",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/Cover"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Entity Common Stock, Shares Outstanding",
        "label": "Entity Common Stock, Shares Outstanding",
        "documentation": "Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument."
       }
      }
     },
     "auth_ref": []
    },
    "dei_EntityCurrentReportingStatus": {
     "xbrltype": "yesNoItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2024",
     "localname": "EntityCurrentReportingStatus",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/Cover"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Entity Current Reporting Status",
        "label": "Entity Current Reporting Status",
        "documentation": "Indicate 'Yes' or 'No' whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure."
       }
      }
     },
     "auth_ref": []
    },
    "dei_EntityDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2024",
     "localname": "EntityDomain",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsCapitalDebtSecuritiesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Entity [Domain]",
        "label": "Entity [Domain]",
        "documentation": "All the names of the entities being reported upon in a document. Any legal structure used to conduct activities or to hold assets. Some examples of such structures are corporations, partnerships, limited liability companies, grantor trusts, and other trusts. This item does not include business and geographical segments which are included in the geographical or business segments domains."
       }
      }
     },
     "auth_ref": []
    },
    "dei_EntityEmergingGrowthCompany": {
     "xbrltype": "booleanItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2024",
     "localname": "EntityEmergingGrowthCompany",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/Cover"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Entity Emerging Growth Company",
        "label": "Entity Emerging Growth Company",
        "documentation": "Indicate if registrant meets the emerging growth company criteria."
       }
      }
     },
     "auth_ref": [
      "r891"
     ]
    },
    "dei_EntityFileNumber": {
     "xbrltype": "fileNumberItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2024",
     "localname": "EntityFileNumber",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/Cover"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Entity File Number",
        "label": "Entity File Number",
        "documentation": "Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen."
       }
      }
     },
     "auth_ref": []
    },
    "dei_EntityFilerCategory": {
     "xbrltype": "filerCategoryItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2024",
     "localname": "EntityFilerCategory",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/Cover"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Entity Filer Category",
        "label": "Entity Filer Category",
        "documentation": "Indicate whether the registrant is one of the following: Large Accelerated Filer, Accelerated Filer, Non-accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure."
       }
      }
     },
     "auth_ref": [
      "r891"
     ]
    },
    "dei_EntityIncorporationStateCountryCode": {
     "xbrltype": "edgarStateCountryItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2024",
     "localname": "EntityIncorporationStateCountryCode",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/Cover"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Entity Incorporation, State or Country Code",
        "label": "Entity Incorporation, State or Country Code",
        "documentation": "Two-character EDGAR code representing the state or country of incorporation."
       }
      }
     },
     "auth_ref": []
    },
    "dei_EntityInteractiveDataCurrent": {
     "xbrltype": "yesNoItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2024",
     "localname": "EntityInteractiveDataCurrent",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/Cover"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Entity Interactive Data Current",
        "label": "Entity Interactive Data Current",
        "documentation": "Boolean flag that is true when the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files)."
       }
      }
     },
     "auth_ref": [
      "r975"
     ]
    },
    "dei_EntityRegistrantName": {
     "xbrltype": "normalizedStringItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2024",
     "localname": "EntityRegistrantName",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/Cover"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Entity Registrant Name",
        "label": "Entity Registrant Name",
        "documentation": "The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC."
       }
      }
     },
     "auth_ref": [
      "r891"
     ]
    },
    "dei_EntityShellCompany": {
     "xbrltype": "booleanItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2024",
     "localname": "EntityShellCompany",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/Cover"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Entity Shell Company",
        "label": "Entity Shell Company",
        "documentation": "Boolean flag that is true when the registrant is a shell company as defined in Rule 12b-2 of the Exchange Act."
       }
      }
     },
     "auth_ref": [
      "r891"
     ]
    },
    "dei_EntitySmallBusiness": {
     "xbrltype": "booleanItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2024",
     "localname": "EntitySmallBusiness",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/Cover"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Entity Small Business",
        "label": "Entity Small Business",
        "documentation": "Indicates that the company is a Smaller Reporting Company (SRC)."
       }
      }
     },
     "auth_ref": [
      "r891"
     ]
    },
    "dei_EntityTaxIdentificationNumber": {
     "xbrltype": "employerIdItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2024",
     "localname": "EntityTaxIdentificationNumber",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/Cover"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Entity Tax Identification Number",
        "label": "Entity Tax Identification Number",
        "documentation": "The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS."
       }
      }
     },
     "auth_ref": [
      "r891"
     ]
    },
    "ecd_EqtyAwrdsAdjFnTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "EqtyAwrdsAdjFnTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Equity Awards Adjustments, Footnote",
        "label": "Equity Awards Adjustments, Footnote [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r930"
     ]
    },
    "ecd_EqtyAwrdsAdjsExclgValRprtdInSummryCompstnTblMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "EqtyAwrdsAdjsExclgValRprtdInSummryCompstnTblMember",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Equity Awards Adjustments, Excluding Value Reported in Compensation Table",
        "label": "Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member]"
       }
      }
     },
     "auth_ref": [
      "r971"
     ]
    },
    "ecd_EqtyAwrdsAdjsMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "EqtyAwrdsAdjsMember",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Equity Awards Adjustments",
        "label": "Equity Awards Adjustments [Member]"
       }
      }
     },
     "auth_ref": [
      "r971"
     ]
    },
    "ecd_EqtyAwrdsInSummryCompstnTblForAplblYrMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "EqtyAwrdsInSummryCompstnTblForAplblYrMember",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table",
        "label": "Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member]"
       }
      }
     },
     "auth_ref": [
      "r971"
     ]
    },
    "nwbi_EquipmentCollateralDependentLoansMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "EquipmentCollateralDependentLoansMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCompositionofImpairedLoansbyPortfolioSegmentandClassofFinancingReceivableDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Equipment",
        "label": "Equipment Collateral-Dependent Loans [Member]",
        "documentation": "Equipment Collateral-Dependent Loans [Member]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_EquityComponentDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "EquityComponentDomain",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITYUnaudited",
      "http://www.northwestsavingsbank.com/role/ChangesinAccumulatedOtherComprehensiveIncomeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Equity Component [Domain]",
        "label": "Equity Component [Domain]",
        "documentation": "Components of equity are the parts of the total Equity balance including that which is allocated to common, preferred, treasury stock, retained earnings, etc."
       }
      }
     },
     "auth_ref": [
      "r19",
      "r190",
      "r215",
      "r216",
      "r217",
      "r231",
      "r232",
      "r233",
      "r236",
      "r242",
      "r244",
      "r246",
      "r269",
      "r324",
      "r330",
      "r369",
      "r419",
      "r527",
      "r528",
      "r536",
      "r537",
      "r538",
      "r541",
      "r548",
      "r549",
      "r562",
      "r563",
      "r564",
      "r565",
      "r566",
      "r568",
      "r578",
      "r611",
      "r612",
      "r613",
      "r614",
      "r615",
      "r616",
      "r619",
      "r620",
      "r627",
      "r695",
      "r707",
      "r708",
      "r709",
      "r721",
      "r781"
     ]
    },
    "ecd_EquityValuationAssumptionDifferenceFnTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "EquityValuationAssumptionDifferenceFnTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Equity Valuation Assumption Difference, Footnote",
        "label": "Equity Valuation Assumption Difference, Footnote [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r940"
     ]
    },
    "ecd_ErrCompAnalysisTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "ErrCompAnalysisTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Erroneous Compensation Analysis",
        "label": "Erroneous Compensation Analysis [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r898",
      "r908",
      "r918",
      "r950"
     ]
    },
    "ecd_ErrCompRecoveryTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "ErrCompRecoveryTable",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Erroneously Awarded Compensation Recovery",
        "label": "Erroneously Awarded Compensation Recovery [Table]"
       }
      }
     },
     "auth_ref": [
      "r895",
      "r905",
      "r915",
      "r947"
     ]
    },
    "us-gaap_EstimateOfFairValueFairValueDisclosureMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "EstimateOfFairValueFairValueDisclosureMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Estimated fair\u00a0value",
        "label": "Estimate of Fair Value Measurement [Member]",
        "documentation": "Measured as an estimate of fair value."
       }
      }
     },
     "auth_ref": [
      "r407",
      "r609",
      "r843",
      "r844"
     ]
    },
    "ecd_ExecutiveCategoryAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "ExecutiveCategoryAxis",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Executive Category:",
        "label": "Executive Category [Axis]"
       }
      }
     },
     "auth_ref": [
      "r946"
     ]
    },
    "us-gaap_ExtendedMaturityAndInterestRateReductionMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ExtendedMaturityAndInterestRateReductionMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableAmortizedCostBasisofLoansModifiedDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Combination term extension and interest rate reduction",
        "label": "Extended Maturity and Interest Rate Reduction [Member]",
        "documentation": "Loan modification for extension of term of loan in which it must be paid, reduction of contractual interest rate, and reduction of interest rate to lower than current market rate for new debt with similar risk."
       }
      }
     },
     "auth_ref": [
      "r831"
     ]
    },
    "us-gaap_ExtendedMaturityMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ExtendedMaturityMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableAmortizedCostBasisofLoansModifiedDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoansModifiedwithPaymentDefaultDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Term extension",
        "label": "Extended Maturity [Member]",
        "documentation": "Loan modification for an extension of the term of a loan in which it must be paid."
       }
      }
     },
     "auth_ref": [
      "r281",
      "r831"
     ]
    },
    "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsNonrecurringAssetsthathadFairMarketValuesBelowtheCarryingAmountDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Assets and liabilities measured at fair value on a recurring basis",
        "verboseLabel": "Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount",
        "label": "Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]",
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table."
       }
      }
     },
     "auth_ref": [
      "r582",
      "r583",
      "r596",
      "r861"
     ]
    },
    "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsNonrecurringAssetsthathadFairMarketValuesBelowtheCarryingAmountDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Fair Value, Recurring and Nonrecurring [Table]",
        "label": "Fair Value, Recurring and Nonrecurring [Table]",
        "documentation": "Disclosure of information about asset and liability measured at fair value on recurring and nonrecurring basis."
       }
      }
     },
     "auth_ref": [
      "r582",
      "r583",
      "r596",
      "r861"
     ]
    },
    "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Fair Value Measurement Inputs and Valuation Techniques [Line Items]",
        "label": "Fair Value Measurement Inputs and Valuation Techniques [Line Items]",
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table."
       }
      }
     },
     "auth_ref": [
      "r584",
      "r585",
      "r586",
      "r865"
     ]
    },
    "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Fair Value Measurement Inputs and Valuation Techniques [Table]",
        "label": "Fair Value Measurement Inputs and Valuation Techniques [Table]",
        "documentation": "Disclosure of information about input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis."
       }
      }
     },
     "auth_ref": [
      "r584",
      "r585",
      "r586",
      "r865"
     ]
    },
    "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of quantitative information about assets measured at fair value on a recurring and nonrecurring basis for Level 3 fair value measurements",
        "label": "Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]",
        "documentation": "Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis."
       }
      }
     },
     "auth_ref": [
      "r584",
      "r585",
      "r865"
     ]
    },
    "us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FairValueAssetsMeasuredOnNonrecurringBasisTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of fair value measurement for nonrecurring assets",
        "label": "Fair Value Measurements, Nonrecurring [Table Text Block]",
        "documentation": "Tabular disclosure of assets and liabilities by class, including financial instruments measured at fair value that are classified in shareholders' equity, if any, that are measured at fair value on a nonrecurring basis in periods after initial recognition (for example, impaired assets). Disclosures may include, but are not limited to: (a) the fair value measurements recorded and the reasons for the measurements and (b) the level within the fair value hierarchy in which the fair value measurements are categorized in their entirety (levels 1, 2, 3)."
       }
      }
     },
     "auth_ref": [
      "r1108",
      "r1109"
     ]
    },
    "us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsReconciliationofallAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisUsingSignificantUnobservableInputsLevel3Details"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3)",
        "label": "Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]",
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsReconciliationofallAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisUsingSignificantUnobservableInputsLevel3Details"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Reconciliation of debt securities measured at fair value on a recurring basis using significant unobservable inputs (Level 3)",
        "label": "Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]",
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table."
       }
      }
     },
     "auth_ref": [
      "r587",
      "r588",
      "r589",
      "r590",
      "r591",
      "r592",
      "r597",
      "r863"
     ]
    },
    "us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsReconciliationofallAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisUsingSignificantUnobservableInputsLevel3Details"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]",
        "label": "Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]",
        "documentation": "Disclosure of information about financial instrument asset measured at fair value on recurring basis using unobservable input."
       }
      }
     },
     "auth_ref": [
      "r587",
      "r588",
      "r589",
      "r590",
      "r591",
      "r592",
      "r597",
      "r863"
     ]
    },
    "us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of changes in Level 3 assets and liabilities measured at fair value on a recurring basis",
        "label": "Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]",
        "documentation": "Tabular disclosure of the fair value measurement of assets using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income (loss), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset."
       }
      }
     },
     "auth_ref": [
      "r587",
      "r592",
      "r597",
      "r863"
     ]
    },
    "us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Carrying amount and estimated fair value of the entity's financial instruments included in the consolidated statement of financial condition",
        "label": "Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]",
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_FairValueByBalanceSheetGroupingTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FairValueByBalanceSheetGroupingTable",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Fair Value, by Balance Sheet Grouping [Table]",
        "label": "Fair Value, by Balance Sheet Grouping [Table]",
        "documentation": "Disclosure of information about the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities."
       }
      }
     },
     "auth_ref": [
      "r59",
      "r60"
     ]
    },
    "us-gaap_FairValueByBalanceSheetGroupingTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FairValueByBalanceSheetGroupingTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of the carrying amount and estimated fair value of the entity's financial instruments included in the consolidated statement of financial condition",
        "label": "Fair Value, by Balance Sheet Grouping [Table Text Block]",
        "documentation": "Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities."
       }
      }
     },
     "auth_ref": [
      "r59"
     ]
    },
    "us-gaap_FairValueByFairValueHierarchyLevelAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FairValueByFairValueHierarchyLevelAxis",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsNonrecurringAssetsthathadFairMarketValuesBelowtheCarryingAmountDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsReconciliationofallAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisUsingSignificantUnobservableInputsLevel3Details"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Fair Value Hierarchy and NAV [Axis]",
        "label": "Fair Value Hierarchy and NAV [Axis]",
        "documentation": "Information by level within fair value hierarchy and fair value measured at net asset value per share as practical expedient."
       }
      }
     },
     "auth_ref": [
      "r407",
      "r450",
      "r451",
      "r452",
      "r453",
      "r454",
      "r455",
      "r581",
      "r583",
      "r584",
      "r585",
      "r586",
      "r595",
      "r596",
      "r598",
      "r631",
      "r632",
      "r633",
      "r843",
      "r844",
      "r848",
      "r849",
      "r850",
      "r861",
      "r865"
     ]
    },
    "us-gaap_FairValueByMeasurementBasisAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FairValueByMeasurementBasisAxis",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Measurement Basis [Axis]",
        "label": "Measurement Basis [Axis]",
        "documentation": "Information by measurement basis."
       }
      }
     },
     "auth_ref": [
      "r407",
      "r843",
      "r844"
     ]
    },
    "us-gaap_FairValueByMeasurementFrequencyAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FairValueByMeasurementFrequencyAxis",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsNonrecurringAssetsthathadFairMarketValuesBelowtheCarryingAmountDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Measurement Frequency [Axis]",
        "label": "Measurement Frequency [Axis]",
        "documentation": "Information by measurement frequency."
       }
      }
     },
     "auth_ref": [
      "r582",
      "r583",
      "r584",
      "r586",
      "r861",
      "r1111",
      "r1122"
     ]
    },
    "us-gaap_FairValueDisclosureItemAmountsDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FairValueDisclosureItemAmountsDomain",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Fair Value Measurement [Domain]",
        "label": "Fair Value Measurement [Domain]",
        "documentation": "Measurement basis, for example, but not limited to, reported value, fair value, portion at fair value, portion at other than fair value."
       }
      }
     },
     "auth_ref": [
      "r407",
      "r843",
      "r844"
     ]
    },
    "us-gaap_FairValueDisclosuresAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FairValueDisclosuresAbstract",
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Fair Value Disclosures [Abstract]",
        "label": "Fair Value Disclosures [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_FairValueDisclosuresTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FairValueDisclosuresTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstruments"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Disclosures About Fair Value of Financial Instruments",
        "label": "Fair Value Disclosures [Text Block]",
        "documentation": "The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information."
       }
      }
     },
     "auth_ref": [
      "r591",
      "r593",
      "r594",
      "r595",
      "r598",
      "r599",
      "r600",
      "r601",
      "r602",
      "r663",
      "r861",
      "r866"
     ]
    },
    "us-gaap_FairValueInputsLevel1Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FairValueInputsLevel1Member",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsNonrecurringAssetsthathadFairMarketValuesBelowtheCarryingAmountDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "verboseLabel": "Level\u00a01",
        "terseLabel": "Level\u00a01",
        "label": "Fair Value, Inputs, Level 1 [Member]",
        "documentation": "Quoted prices in active markets for identical assets or liabilities that the reporting entity can access at the measurement date."
       }
      }
     },
     "auth_ref": [
      "r407",
      "r450",
      "r455",
      "r583",
      "r596",
      "r631",
      "r848",
      "r849",
      "r850",
      "r861"
     ]
    },
    "us-gaap_FairValueInputsLevel2Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FairValueInputsLevel2Member",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsNonrecurringAssetsthathadFairMarketValuesBelowtheCarryingAmountDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "verboseLabel": "Level\u00a02",
        "terseLabel": "Level\u00a02",
        "label": "Fair Value, Inputs, Level 2 [Member]",
        "documentation": "Inputs other than quoted prices included within level 1 that are observable for an asset or liability, either directly or indirectly, including, but not limited to, quoted prices for similar assets or liabilities in active markets, or quoted prices for identical or similar assets or liabilities in inactive markets."
       }
      }
     },
     "auth_ref": [
      "r407",
      "r450",
      "r455",
      "r583",
      "r584",
      "r596",
      "r632",
      "r843",
      "r844",
      "r848",
      "r849",
      "r850",
      "r861"
     ]
    },
    "us-gaap_FairValueInputsLevel3Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FairValueInputsLevel3Member",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsNonrecurringAssetsthathadFairMarketValuesBelowtheCarryingAmountDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsReconciliationofallAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisUsingSignificantUnobservableInputsLevel3Details"
     ],
     "lang": {
      "en-us": {
       "role": {
        "verboseLabel": "Level\u00a03",
        "terseLabel": "Level\u00a03",
        "label": "Fair Value, Inputs, Level 3 [Member]",
        "documentation": "Unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing."
       }
      }
     },
     "auth_ref": [
      "r407",
      "r450",
      "r451",
      "r452",
      "r453",
      "r454",
      "r455",
      "r583",
      "r584",
      "r585",
      "r586",
      "r596",
      "r633",
      "r843",
      "r844",
      "r848",
      "r849",
      "r850",
      "r861",
      "r865"
     ]
    },
    "us-gaap_FairValueMeasurementFrequencyDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FairValueMeasurementFrequencyDomain",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsNonrecurringAssetsthathadFairMarketValuesBelowtheCarryingAmountDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Measurement Frequency [Domain]",
        "label": "Measurement Frequency [Domain]",
        "documentation": "Measurement frequency."
       }
      }
     },
     "auth_ref": [
      "r582",
      "r583",
      "r584",
      "r586",
      "r861",
      "r1111",
      "r1122"
     ]
    },
    "us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsReconciliationofallAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisUsingSignificantUnobservableInputsLevel3Details"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Net activity",
        "label": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements)",
        "documentation": "Amount of purchases, (sales), issuances and (settlements) of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing."
       }
      }
     },
     "auth_ref": [
      "r1116",
      "r1121"
     ]
    },
    "us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsReconciliationofallAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisUsingSignificantUnobservableInputsLevel3Details"
     ],
     "lang": {
      "en-us": {
       "role": {
        "periodStartLabel": "Beginning balance,",
        "periodEndLabel": "Ending balance",
        "label": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value",
        "documentation": "Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing."
       }
      }
     },
     "auth_ref": [
      "r587",
      "r597",
      "r863"
     ]
    },
    "nwbi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetsInterestRateLockCommitmentsRealizedAndUnrealizedAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetsInterestRateLockCommitmentsRealizedAndUnrealizedAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsReconciliationofallAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisUsingSignificantUnobservableInputsLevel3Details"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Interest rate lock commitments:",
        "label": "Fair Value Measurement with Unobservable Inputs Reconciliation Recurring Basis Assets Interest Rate Lock Commitments Realized and Unrealized [Abstract]",
        "documentation": "Fair Value Measurement with Unobservable Inputs Reconciliation Recurring Basis Assets Interest Rate Lock Commitments Realized and Unrealized"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisFinancialInstrumentsTotalUnrealizedGainsLossesPeriodIncreaseDecrease": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisFinancialInstrumentsTotalUnrealizedGainsLossesPeriodIncreaseDecrease",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Significant unrealized appreciation or depreciation in financial instruments",
        "label": "Fair Value Measurement with Unobservable Inputs Reconciliation Recurring Basis Financial Instruments Total Unrealized Gains (Losses) Period Increase (Decrease)",
        "documentation": "The increase (decrease) of financial instruments measured at fair value on a recurring basis using unobservable inputs (Level 3) which have taken place during the period. Such increase (decrease) may be comprised of changes in fair value (gains or losses) unrealized."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_FairValueMeasurementsFairValueHierarchyDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FairValueMeasurementsFairValueHierarchyDomain",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsNonrecurringAssetsthathadFairMarketValuesBelowtheCarryingAmountDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsReconciliationofallAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisUsingSignificantUnobservableInputsLevel3Details"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Fair Value Hierarchy and NAV [Domain]",
        "label": "Fair Value Hierarchy and NAV [Domain]",
        "documentation": "Categories used to prioritize the inputs to valuation techniques to measure fair value."
       }
      }
     },
     "auth_ref": [
      "r407",
      "r450",
      "r451",
      "r452",
      "r453",
      "r454",
      "r455",
      "r581",
      "r583",
      "r584",
      "r585",
      "r586",
      "r595",
      "r596",
      "r598",
      "r631",
      "r632",
      "r633",
      "r843",
      "r844",
      "r848",
      "r849",
      "r850",
      "r861",
      "r865"
     ]
    },
    "us-gaap_FairValueMeasurementsNonrecurringMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FairValueMeasurementsNonrecurringMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsNonrecurringAssetsthathadFairMarketValuesBelowtheCarryingAmountDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Nonrecurring",
        "label": "Fair Value, Nonrecurring [Member]",
        "documentation": "Infrequent fair value measurement. Includes, but is not limited to, fair value adjustment for impairment of asset, liability or equity, not frequently measured at fair value."
       }
      }
     },
     "auth_ref": [
      "r582",
      "r583",
      "r584",
      "r586",
      "r861",
      "r1111"
     ]
    },
    "us-gaap_FairValueMeasurementsRecurringMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FairValueMeasurementsRecurringMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Recurring",
        "label": "Fair Value, Recurring [Member]",
        "documentation": "Frequent fair value measurement. Includes, but is not limited to, fair value adjustment for impairment of asset, liability or equity, frequently measured at fair value."
       }
      }
     },
     "auth_ref": [
      "r861",
      "r1108",
      "r1109",
      "r1110",
      "r1111",
      "r1112",
      "r1122"
     ]
    },
    "us-gaap_FederalDepositInsuranceCorporationPremiumExpense": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FederalDepositInsuranceCorporationPremiumExpense",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_NoninterestExpense",
       "weight": 1.0,
       "order": 12.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Federal deposit insurance premiums",
        "label": "Federal Deposit Insurance Corporation Premium Expense",
        "documentation": "Amount of expense for Federal Deposit Insurance Corporation (FDIC) insurance."
       }
      }
     },
     "auth_ref": [
      "r131"
     ]
    },
    "srt_FederalHomeLoanBankAdvancesBranchOfFHLBBankAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/srt/2024",
     "localname": "FederalHomeLoanBankAdvancesBranchOfFHLBBankAxis",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails",
      "http://www.northwestsavingsbank.com/role/BorrowedFundsScheduleofBorrowedFundsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Federal Home Loan Bank Branch [Axis]",
        "label": "Federal Home Loan Bank Branch [Axis]"
       }
      }
     },
     "auth_ref": [
      "r1145"
     ]
    },
    "srt_FederalHomeLoanBankAdvancesBranchOfFHLBBankStateDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/srt/2024",
     "localname": "FederalHomeLoanBankAdvancesBranchOfFHLBBankStateDomain",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails",
      "http://www.northwestsavingsbank.com/role/BorrowedFundsScheduleofBorrowedFundsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Federal Home Loan Bank Branch [Domain]",
        "label": "Federal Home Loan Bank Branch [Domain]"
       }
      }
     },
     "auth_ref": []
    },
    "srt_FederalHomeLoanBankOfPittsburghMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/srt/2024",
     "localname": "FederalHomeLoanBankOfPittsburghMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails",
      "http://www.northwestsavingsbank.com/role/BorrowedFundsScheduleofBorrowedFundsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Federal Home Loan Bank of Pittsburgh",
        "label": "Federal Home Loan Bank of Pittsburgh [Member]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_FederalHomeLoanBankStock": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FederalHomeLoanBankStock",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "us-gaap_Assets",
       "weight": 1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "FHLB stock, at cost",
        "label": "Federal Home Loan Bank Stock",
        "documentation": "Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity)."
       }
      }
     },
     "auth_ref": [
      "r143"
     ]
    },
    "us-gaap_FederalHomeLoanMortgageCorporationCertificatesAndObligationsFHLMCMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FederalHomeLoanMortgageCorporationCertificatesAndObligationsFHLMCMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "FHLMC",
        "label": "Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member]",
        "documentation": "Investments in debentures, bonds and other debt securities issued by the Federal Home Loan Mortgage Corporation (FHLMC or Freddie Mac)."
       }
      }
     },
     "auth_ref": [
      "r120",
      "r123"
     ]
    },
    "us-gaap_FederalNationalMortgageAssociationCertificatesAndObligationsFNMAMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FederalNationalMortgageAssociationCertificatesAndObligationsFNMAMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "FNMA",
        "label": "Federal National Mortgage Association Certificates and Obligations (FNMA) [Member]",
        "documentation": "Investments in debentures, bonds and other debt securities issued by the Federal National Mortgage Association (FNMA or Fannie Mae)."
       }
      }
     },
     "auth_ref": [
      "r120",
      "r123"
     ]
    },
    "us-gaap_FeesAndCommissionsMortgageBankingAndServicing": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FeesAndCommissionsMortgageBankingAndServicing",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_NoninterestIncome",
       "weight": 1.0,
       "order": 6.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Service charges and fees",
        "label": "Fees and Commissions, Mortgage Banking and Servicing",
        "documentation": "Income from mortgage banking activities (fees and commissions) and servicing real estate mortgages, credit cards, and other financial assets held by others net of any related impairment of capitalized service costs. Also includes any premiums received in lieu of regular servicing fees on such loans only as earned over the life of the loans."
       }
      }
     },
     "auth_ref": [
      "r180",
      "r181"
     ]
    },
    "nwbi_FeesAndCommissionsTrustServicesAndOtherIncome": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "FeesAndCommissionsTrustServicesAndOtherIncome",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_NoninterestIncome",
       "weight": 1.0,
       "order": 7.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Trust and other financial services income",
        "label": "Fees And Commissions, Trust Services And Other Income",
        "documentation": "Fees And Commissions, Trust Services And Other Income"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_FinancialAssetNotPastDueMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancialAssetNotPastDueMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanDelinquenciesDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivablePerformanceofLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Current",
        "label": "Financial Asset, Not Past Due [Member]",
        "documentation": "Financial asset not past due."
       }
      }
     },
     "auth_ref": [
      "r336",
      "r838"
     ]
    },
    "us-gaap_FinancialAssetPastDueMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancialAssetPastDueMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanDelinquenciesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Total delinquency",
        "label": "Financial Asset, Past Due [Member]",
        "documentation": "Financial asset past due."
       }
      }
     },
     "auth_ref": [
      "r157",
      "r336",
      "r838"
     ]
    },
    "us-gaap_FinancialInstrumentAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancialInstrumentAxis",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsNonrecurringAssetsthathadFairMarketValuesBelowtheCarryingAmountDetails",
      "http://www.northwestsavingsbank.com/role/GuaranteesDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableforsalebyContractualMaturityDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesCreditQualityofHeldToMaturitySecuritiesDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesFairValueofandGrossUnrealizedLossesonInvestmentSecuritiesDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturitybyContractualMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Financial Instrument [Axis]",
        "label": "Financial Instrument [Axis]",
        "documentation": "Information by type of financial instrument."
       }
      }
     },
     "auth_ref": [
      "r288",
      "r289",
      "r290",
      "r291",
      "r292",
      "r293",
      "r294",
      "r295",
      "r296",
      "r297",
      "r298",
      "r299",
      "r300",
      "r301",
      "r302",
      "r303",
      "r304",
      "r305",
      "r306",
      "r307",
      "r308",
      "r309",
      "r310",
      "r311",
      "r312",
      "r313",
      "r314",
      "r315",
      "r316",
      "r317",
      "r331",
      "r332",
      "r336",
      "r337",
      "r343",
      "r348",
      "r349",
      "r350",
      "r415",
      "r418",
      "r569",
      "r603",
      "r628",
      "r629",
      "r630",
      "r631",
      "r632",
      "r633",
      "r634",
      "r635",
      "r636",
      "r637",
      "r638",
      "r639",
      "r640",
      "r641",
      "r642",
      "r644",
      "r645",
      "r646",
      "r647",
      "r648",
      "r649",
      "r650",
      "r651",
      "r652",
      "r653",
      "r654",
      "r655",
      "r656",
      "r657",
      "r658",
      "r696",
      "r839",
      "r861",
      "r863",
      "r865",
      "r866",
      "r867",
      "r868",
      "r869",
      "r870",
      "r871",
      "r874",
      "r979",
      "r980",
      "r981",
      "r982",
      "r983",
      "r984",
      "r985",
      "r1052",
      "r1053",
      "r1054",
      "r1055",
      "r1107",
      "r1110",
      "r1111",
      "r1112",
      "r1119",
      "r1122"
     ]
    },
    "us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Financial assets:",
        "label": "Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Financial liabilities:",
        "label": "Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_FinancialLiabilitiesFairValueDisclosure": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancialLiabilitiesFairValueDisclosure",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails": {
       "parentTag": null,
       "weight": null,
       "order": null,
       "root": true
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Total liabilities",
        "label": "Financial Liabilities Fair Value Disclosure",
        "documentation": "Fair value of financial obligations, including, but not limited to, debt instruments, derivative liabilities, federal funds purchased and sold under agreements to repurchase, securities loaned or sold under agreements to repurchase, financial instruments sold not yet purchased, guarantees, line of credit, loans and notes payable, servicing liability, and trading liabilities."
       }
      }
     },
     "auth_ref": [
      "r1108",
      "r1109",
      "r1119"
     ]
    },
    "us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss",
       "weight": -1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited",
      "http://www.northwestsavingsbank.com/role/LoansReceivableChangesintheAllowanceforLossesonLoansReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanPortfoliobyPortfolioSegmentandbyClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableOriginatedandAcquiredLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedLabel": "Allowance for credit losses",
        "negatedTerseLabel": "Allowance for credit losses",
        "periodStartLabel": "Beginning balance",
        "periodEndLabel": "Ending balance",
        "terseLabel": "Allowance\u00a0for credit\u00a0losses",
        "label": "Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest",
        "documentation": "Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease."
       }
      }
     },
     "auth_ref": [
      "r1057"
     ]
    },
    "us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableAllowanceForCreditLossesLineItems",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableChangesintheAllowanceforLossesonLoansReceivableDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Allowance for loan losses",
        "label": "Financing Receivable, Allowance for Credit Loss [Line Items]",
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table."
       }
      }
     },
     "auth_ref": [
      "r187",
      "r1058"
     ]
    },
    "nwbi_FinancingReceivableAmortizedCostOfCollateralDependentLoans": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "FinancingReceivableAmortizedCostOfCollateralDependentLoans",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCompositionofImpairedLoansbyPortfolioSegmentandClassofFinancingReceivableDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Amortized cost basis of collateral-dependent loans",
        "label": "Financing Receivable, Amortized Cost Of Collateral Dependent Loans",
        "documentation": "Financing Receivable, Amortized Cost Of Collateral Dependent Loans"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_FinancingReceivableCommitmentsAuthorizedCreditLimit": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "FinancingReceivableCommitmentsAuthorizedCreditLimit",
     "crdr": "credit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/GuaranteesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Credit limit",
        "label": "Financing Receivable, Commitments, Authorized Credit Limit",
        "documentation": "Financing Receivable, Commitments, Authorized Credit Limit"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_FinancingReceivableCommitmentsOutstanding": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "FinancingReceivableCommitmentsOutstanding",
     "crdr": "credit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/GuaranteesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Outstanding balance",
        "label": "Financing Receivable, Commitments, Outstanding",
        "documentation": "Financing Receivable, Commitments, Outstanding"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_FinancingReceivableCreditQualityIndicatorsTableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableCreditQualityIndicatorsTableTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of credit quality indicators",
        "label": "Financing Receivable Credit Quality Indicators [Table Text Block]",
        "documentation": "Tabular disclosure of financing receivables by credit quality indicator. The credit quality indicator is a statistic about the credit quality of financing receivables. Examples include, but not limited to, consumer credit risk scores, credit-rating-agency ratings, an entity's internal credit risk grades, loan-to-value ratios, collateral, collection experience and other internal metrics."
       }
      }
     },
     "auth_ref": [
      "r150",
      "r1060"
     ]
    },
    "us-gaap_FinancingReceivableExcludingAccruedInterest90DaysOrMorePastDueStillAccruing": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableExcludingAccruedInterest90DaysOrMorePastDueStillAccruing",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCompositionofImpairedLoansbyPortfolioSegmentandClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanDelinquenciesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "verboseLabel": "Loans 90 days past due and accruing",
        "terseLabel": "90\u00a0days\u00a0or greater delinquent and\u00a0accruing",
        "label": "Financing Receivable, Excluding Accrued Interest, 90 Days or More Past Due, Still Accruing",
        "documentation": "Amortized cost excluding accrued interest, of financing receivable 90 days or more past due and still accruing. Excludes net investment in lease."
       }
      }
     },
     "auth_ref": [
      "r340"
     ]
    },
    "us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "us-gaap_Assets",
       "weight": 1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails",
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited",
      "http://www.northwestsavingsbank.com/role/LoansReceivableOriginatedandAcquiredLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Loans receivable, net",
        "terseLabel": "Total loans receivable, net",
        "label": "Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss",
        "documentation": "Amortized cost excluding accrued interest, after allowance for credit loss, of financing receivable. Excludes net investment in lease."
       }
      }
     },
     "auth_ref": [
      "r1057"
     ]
    },
    "us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery",
     "crdr": "credit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableChangesintheAllowanceforLossesonLoansReceivableDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Recoveries",
        "label": "Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Recovery",
        "documentation": "Amount, excluding accrued interest, of increase in allowance for credit loss on financing receivable from recovery. Excludes net investment in lease."
       }
      }
     },
     "auth_ref": [
      "r335"
     ]
    },
    "us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails": {
       "parentTag": null,
       "weight": null,
       "order": null,
       "root": true
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableChangesintheAllowanceforLossesonLoansReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedLabel": "Charge-offs",
        "negatedTotalLabel": "Total loans receivable, charge-offs",
        "label": "Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff",
        "documentation": "Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Excludes net investment in lease."
       }
      }
     },
     "auth_ref": [
      "r334",
      "r345"
     ]
    },
    "us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails": {
       "parentTag": null,
       "weight": null,
       "order": null,
       "root": true
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanPortfoliobyPortfolioSegmentandbyClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableOriginatedandAcquiredLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Total loans receivable, gross",
        "verboseLabel": "Total\u00a0loans receivable",
        "totalLabel": "Total loans receivable, gross",
        "label": "Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss",
        "documentation": "Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease."
       }
      }
     },
     "auth_ref": [
      "r342",
      "r344",
      "r1057"
     ]
    },
    "nwbi_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossAndLoansHeldForSale": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossAndLoansHeldForSale",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss",
       "weight": 1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "verboseLabel": "Loans held for investment",
        "label": "Financing Receivable, Excluding Accrued Interest, Before Allowance For Credit Loss And Loans Held For Sale",
        "documentation": "Financing Receivable, Excluding Accrued Interest, Before Allowance For Credit Loss And Loans Held For Sale"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossFeeAndLoanInProcess": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossFeeAndLoanInProcess",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanDelinquenciesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Total\u00a0loans receivable",
        "label": "Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process",
        "documentation": "Amortized cost excluding accrued interest, before allowance for credit loss, fee, and loan in process, of financing receivable. Excludes net investment in lease."
       }
      }
     },
     "auth_ref": [
      "r666"
     ]
    },
    "us-gaap_FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableChangesintheAllowanceforLossesonLoansReceivableDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Current period provision",
        "label": "Financing Receivable, Excluding Accrued Interest, Credit Loss Expense (Reversal)",
        "documentation": "Amount, excluding accrued interest, of credit loss expense (reversal of expense) on financing receivable. Excludes net investment in lease."
       }
      }
     },
     "auth_ref": [
      "r333"
     ]
    },
    "us-gaap_FinancingReceivableExcludingAccruedInterestModifiedPeriod": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableExcludingAccruedInterestModifiedPeriod",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableAmortizedCostBasisofLoansModifiedDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivablePerformanceofLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Loans modified in period",
        "label": "Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount",
        "documentation": "Amortized cost excluding accrued interest, of financing receivable modified during period for debtor experiencing financial difficulty."
       }
      }
     },
     "auth_ref": [
      "r281"
     ]
    },
    "us-gaap_FinancingReceivableExcludingAccruedInterestModifiedSubsequentDefault": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableExcludingAccruedInterestModifiedSubsequentDefault",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoansModifiedwithPaymentDefaultDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Loans with payment default and modified",
        "label": "Financing Receivable, Excluding Accrued Interest, Modified, Subsequent Default",
        "documentation": "Amortized cost excluding accrued interest, of financing receivable with payment default in current period and modified within previous 12 months preceding payment default for debtor experiencing financial difficulty."
       }
      }
     },
     "auth_ref": [
      "r284"
     ]
    },
    "us-gaap_FinancingReceivableExcludingAccruedInterestNonaccrual": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableExcludingAccruedInterestNonaccrual",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCompositionofImpairedLoansbyPortfolioSegmentandClassofFinancingReceivableDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Nonaccrual loans with an allowance",
        "label": "Financing Receivable, Excluding Accrued Interest, Nonaccrual",
        "documentation": "Amortized cost excluding accrued interest, of financing receivable on nonaccrual status. Excludes net investment in lease."
       }
      }
     },
     "auth_ref": [
      "r338"
     ]
    },
    "us-gaap_FinancingReceivableExcludingAccruedInterestNonaccrualNoAllowance": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableExcludingAccruedInterestNonaccrualNoAllowance",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCompositionofImpairedLoansbyPortfolioSegmentandClassofFinancingReceivableDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Nonaccrual loans with no allowance",
        "label": "Financing Receivable, Excluding Accrued Interest, Nonaccrual, No Allowance",
        "documentation": "Amortized cost excluding accrued interest, of financing receivable on nonaccrual status with no allowance for credit loss. Excludes net investment in lease."
       }
      }
     },
     "auth_ref": [
      "r341"
     ]
    },
    "us-gaap_FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails": {
       "parentTag": "us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss",
       "weight": 1.0,
       "order": 6.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Prior",
        "label": "Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year",
        "documentation": "Amortized cost excluding accrued interest, of financing receivable originated more than five years prior to current fiscal year. Excludes net investment in lease."
       }
      }
     },
     "auth_ref": [
      "r342",
      "r345",
      "r837"
     ]
    },
    "us-gaap_FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYearWriteoff": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYearWriteoff",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails": {
       "parentTag": "us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff",
       "weight": 1.0,
       "order": 5.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedTerseLabel": "Prior, charge-offs",
        "label": "Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year, Writeoff",
        "documentation": "Amount, excluding accrued interest, of writeoff of financing receivable originated more than five years before current fiscal year. Excludes net investment in lease."
       }
      }
     },
     "auth_ref": [
      "r345"
     ]
    },
    "us-gaap_FinancingReceivableExcludingAccruedInterestRevolving": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableExcludingAccruedInterestRevolving",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails": {
       "parentTag": "us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss",
       "weight": 1.0,
       "order": 7.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Revolving loans",
        "label": "Financing Receivable, Excluding Accrued Interest, Revolving",
        "documentation": "Amortized cost excluding accrued interest, of financing receivable that can be withdrawn, repaid, and redrawn."
       }
      }
     },
     "auth_ref": [
      "r342",
      "r345",
      "r837"
     ]
    },
    "us-gaap_FinancingReceivableExcludingAccruedInterestRevolvingConvertedToTermLoan": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableExcludingAccruedInterestRevolvingConvertedToTermLoan",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails": {
       "parentTag": "us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss",
       "weight": 1.0,
       "order": 8.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Revolving loans converted to term loans",
        "label": "Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan",
        "documentation": "Amortized cost excluding accrued interest, of revolving financing receivable converted to term loan."
       }
      }
     },
     "auth_ref": [
      "r342",
      "r346",
      "r837"
     ]
    },
    "us-gaap_FinancingReceivableExcludingAccruedInterestRevolvingConvertedToTermLoanDuringPeriod": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableExcludingAccruedInterestRevolvingConvertedToTermLoanDuringPeriod",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Revolving loans converted to term loans during the period",
        "label": "Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan During Period",
        "documentation": "Amount excluding accrued interest, of increase in term loan from conversion of revolving financing receivable."
       }
      }
     },
     "auth_ref": [
      "r346"
     ]
    },
    "us-gaap_FinancingReceivableExcludingAccruedInterestRevolvingConvertedToTermLoanWriteoff": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableExcludingAccruedInterestRevolvingConvertedToTermLoanWriteoff",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails": {
       "parentTag": "us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff",
       "weight": 1.0,
       "order": 8.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedTerseLabel": "Revolving loans converted to term loans, charge-offs",
        "label": "Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan, Writeoff",
        "documentation": "Amount, excluding accrued interest, of writeoff of revolving financing receivable converted to term loan."
       }
      }
     },
     "auth_ref": [
      "r346"
     ]
    },
    "us-gaap_FinancingReceivableExcludingAccruedInterestRevolvingWriteoff": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableExcludingAccruedInterestRevolvingWriteoff",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails": {
       "parentTag": "us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff",
       "weight": 1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedTerseLabel": "Revolving loans, charge-offs",
        "label": "Financing Receivable, Excluding Accrued Interest, Revolving, Writeoff",
        "documentation": "Amount, excluding accrued interest, of writeoff of financing receivable that can be withdrawn, repaid, and redrawn."
       }
      }
     },
     "auth_ref": [
      "r345"
     ]
    },
    "us-gaap_FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails": {
       "parentTag": "us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss",
       "weight": 1.0,
       "order": 5.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Year five",
        "label": "Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year",
        "documentation": "Amortized cost excluding accrued interest, of financing receivable originated four years prior to current fiscal year. Excludes net investment in lease."
       }
      }
     },
     "auth_ref": [
      "r342",
      "r345",
      "r837"
     ]
    },
    "us-gaap_FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYearWriteoff": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYearWriteoff",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails": {
       "parentTag": "us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff",
       "weight": 1.0,
       "order": 3.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedTerseLabel": "Year five, charge-offs",
        "label": "Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff",
        "documentation": "Amount, excluding accrued interest, of writeoff of financing receivable originated four years before current fiscal year. Excludes net investment in lease."
       }
      }
     },
     "auth_ref": [
      "r345"
     ]
    },
    "us-gaap_FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails": {
       "parentTag": "us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss",
       "weight": 1.0,
       "order": 4.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Year four",
        "label": "Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year",
        "documentation": "Amortized cost excluding accrued interest, of financing receivable originated three years prior to current fiscal year. Excludes net investment in lease."
       }
      }
     },
     "auth_ref": [
      "r342",
      "r345",
      "r837"
     ]
    },
    "us-gaap_FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYearWriteoff": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYearWriteoff",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails": {
       "parentTag": "us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff",
       "weight": 1.0,
       "order": 6.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedTerseLabel": "Year four, charge-offs",
        "label": "Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff",
        "documentation": "Amount, excluding accrued interest, of writeoff of financing receivable originated three years before current fiscal year. Excludes net investment in lease."
       }
      }
     },
     "auth_ref": [
      "r345"
     ]
    },
    "us-gaap_FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails": {
       "parentTag": "us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss",
       "weight": 1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Year one",
        "label": "Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year",
        "documentation": "Amortized cost excluding accrued interest, of financing receivable originated in current fiscal year. Excludes net investment in lease."
       }
      }
     },
     "auth_ref": [
      "r342",
      "r345",
      "r837"
     ]
    },
    "us-gaap_FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYearWriteoff": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYearWriteoff",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails": {
       "parentTag": "us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff",
       "weight": 1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedTerseLabel": "Year one, charge-offs",
        "label": "Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year, Writeoff",
        "documentation": "Amount, excluding accrued interest, of writeoff of financing receivable originated in current fiscal year. Excludes net investment in lease."
       }
      }
     },
     "auth_ref": [
      "r345"
     ]
    },
    "nwbi_FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYearWriteoffRecovery": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYearWriteoffRecovery",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails": {
       "parentTag": "us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff",
       "weight": 1.0,
       "order": 9.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedLabel": "Year one, charge-offs",
        "label": "Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year, Writeoff (Recovery)",
        "documentation": "Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year, Writeoff (Recovery)"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails": {
       "parentTag": "us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss",
       "weight": 1.0,
       "order": 3.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Year three",
        "label": "Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year",
        "documentation": "Amortized cost excluding accrued interest, of financing receivable originated two years prior to current fiscal year. Excludes net investment in lease."
       }
      }
     },
     "auth_ref": [
      "r342",
      "r345",
      "r837"
     ]
    },
    "us-gaap_FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYearWriteoff": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYearWriteoff",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails": {
       "parentTag": "us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff",
       "weight": 1.0,
       "order": 4.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedTerseLabel": "Year three, charge-offs",
        "label": "Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff",
        "documentation": "Amount, excluding accrued interest, of writeoff of financing receivable originated two years before current fiscal year. Excludes net investment in lease."
       }
      }
     },
     "auth_ref": [
      "r345"
     ]
    },
    "us-gaap_FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails": {
       "parentTag": "us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss",
       "weight": 1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Year two",
        "label": "Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year",
        "documentation": "Amortized cost excluding accrued interest of financing receivable originated in fiscal year prior to current fiscal year. Excludes net investment in lease."
       }
      }
     },
     "auth_ref": [
      "r342",
      "r345",
      "r837"
     ]
    },
    "us-gaap_FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails": {
       "parentTag": "us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff",
       "weight": 1.0,
       "order": 7.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedTerseLabel": "Year two, charge-offs",
        "label": "Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff",
        "documentation": "Amount, excluding accrued interest, of writeoff of financing receivable originated in fiscal year before current fiscal year. Excludes net investment in lease."
       }
      }
     },
     "auth_ref": [
      "r345"
     ]
    },
    "us-gaap_FinancingReceivableImpairedLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableImpairedLineItems",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCompositionofImpairedLoansbyPortfolioSegmentandClassofFinancingReceivableDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "verboseLabel": "Composition of impaired loans by portfolio segment and by class of financing receivable",
        "label": "Financing Receivable, Impaired [Line Items]",
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_FinancingReceivableModificationToTotalFinancingReceivablesExcludingAccruedInterestPercent": {
     "xbrltype": "percentItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableModificationToTotalFinancingReceivablesExcludingAccruedInterestPercent",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableAmortizedCostBasisofLoansModifiedDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Total class of financing receivable",
        "label": "Financing Receivable, Excluding Accrued Interest, Modified in Period, to Total Financing Receivables, Percentage",
        "documentation": "Percentage, excluding accrued interest, of financing receivable modified during period for debtor experiencing financial difficulty to total financing receivables."
       }
      }
     },
     "auth_ref": [
      "r281"
     ]
    },
    "us-gaap_FinancingReceivableModificationsLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableModificationsLineItems",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableAmortizedCostBasisofLoansModifiedDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableFinancingReceivableWeightedAverageModifiedPeriodDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivablePerformanceofLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Troubled debt restructurings",
        "label": "Financing Receivable, Modified [Line Items]",
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table."
       }
      }
     },
     "auth_ref": [
      "r154",
      "r155",
      "r281",
      "r282",
      "r831"
     ]
    },
    "us-gaap_FinancingReceivableModifiedPaymentDeferralPeriod": {
     "xbrltype": "durationItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableModifiedPaymentDeferralPeriod",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableFinancingReceivableWeightedAverageModifiedPeriodDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableOriginatedandAcquiredLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Weighted-average payment deferral in years",
        "label": "Financing Receivable, Modified, Payment Deferral, Period",
        "documentation": "Period of payment deferral of financing receivable modified for debtor experiencing financial difficulty, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days."
       }
      }
     },
     "auth_ref": [
      "r831",
      "r1021"
     ]
    },
    "us-gaap_FinancingReceivableModifiedSubsequentDefaultLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableModifiedSubsequentDefaultLineItems",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoansModifiedwithPaymentDefaultDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Financing Receivable, Modified, Subsequent Default [Line Items]",
        "label": "Financing Receivable, Modified, Subsequent Default [Line Items]",
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table."
       }
      }
     },
     "auth_ref": [
      "r284",
      "r831"
     ]
    },
    "us-gaap_FinancingReceivableModifiedSubsequentDefaultTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableModifiedSubsequentDefaultTable",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoansModifiedwithPaymentDefaultDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Financing Receivable, Modified, Subsequent Default [Table]",
        "label": "Financing Receivable, Modified, Subsequent Default [Table]",
        "documentation": "Disclosure of information about financing receivable with payment default and modified within previous 12 months preceding payment default for debtor experiencing financial difficulty."
       }
      }
     },
     "auth_ref": [
      "r284",
      "r831"
     ]
    },
    "us-gaap_FinancingReceivableModifiedSubsequentDefaultTableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableModifiedSubsequentDefaultTableTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of loans with payment default and modified",
        "label": "Financing Receivable, Modified, Subsequent Default [Table Text Block]",
        "documentation": "Tabular disclosure of financing receivable with payment default and modified within previous 12 months preceding payment default for debtor experiencing financial difficulty."
       }
      }
     },
     "auth_ref": [
      "r831",
      "r1022"
     ]
    },
    "us-gaap_FinancingReceivableModifiedWeightedAverageInterestRateDecreaseFromModification": {
     "xbrltype": "percentItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableModifiedWeightedAverageInterestRateDecreaseFromModification",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableFinancingReceivableWeightedAverageModifiedPeriodDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Weighted-average interest rate reduction",
        "label": "Financing Receivable, Modified, Weighted Average Interest Rate Decrease from Modification",
        "documentation": "Percentage of decrease in weighted average contractual interest rate of financing receivable modified for debtor experiencing financial difficulty."
       }
      }
     },
     "auth_ref": [
      "r831"
     ]
    },
    "us-gaap_FinancingReceivableModifiedWeightedAverageTermIncreaseFromModification": {
     "xbrltype": "durationItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableModifiedWeightedAverageTermIncreaseFromModification",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableFinancingReceivableWeightedAverageModifiedPeriodDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Weighted-average term extension in months",
        "label": "Financing Receivable, Modified, Weighted Average Term Increase from Modification",
        "documentation": "Period of increase in weighted average maturity of financing receivable modified for debtor experiencing financial difficulty, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days."
       }
      }
     },
     "auth_ref": [
      "r831"
     ]
    },
    "nwbi_FinancingReceivableNonaccrualIncludingNonaccrualWithNoAllowance": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "FinancingReceivableNonaccrualIncludingNonaccrualWithNoAllowance",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCompositionofImpairedLoansbyPortfolioSegmentandClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanPortfoliobyPortfolioSegmentandbyClassofFinancingReceivableDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Nonaccrual loans",
        "periodStartLabel": "Nonaccrual loans at beginning balance",
        "periodEndLabel": "Nonaccrual loans at ending balance",
        "label": "Financing Receivable, Nonaccrual, Including Nonaccrual With No Allowance",
        "documentation": "Financing Receivable, Nonaccrual, Including Nonaccrual With No Allowance"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_FinancingReceivableNonaccrualInterestIncome": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableNonaccrualInterestIncome",
     "crdr": "credit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCompositionofImpairedLoansbyPortfolioSegmentandClassofFinancingReceivableDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Interest income, accrual method",
        "label": "Financing Receivable, Nonaccrual, Interest Income",
        "documentation": "Amount of interest income on financing receivable on nonaccrual status."
       }
      }
     },
     "auth_ref": [
      "r339"
     ]
    },
    "us-gaap_FinancingReceivablePortfolioSegmentAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivablePortfolioSegmentAxis",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/GuaranteesDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableAmortizedCostBasisofLoansModifiedDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableChangesintheAllowanceforLossesonLoansReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableCompositionofImpairedLoansbyPortfolioSegmentandClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableFinancingReceivableWeightedAverageModifiedPeriodDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanDelinquenciesDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanPortfoliobyPortfolioSegmentandbyClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoansModifiedwithPaymentDefaultDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableOriginatedandAcquiredLoansDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivablePerformanceofLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Financing Receivable Portfolio Segment [Axis]",
        "label": "Financing Receivable Portfolio Segment [Axis]",
        "documentation": "Information by the level at which an entity develops and documents a systematic methodology to determine its allowance for credit losses."
       }
      }
     },
     "auth_ref": [
      "r184",
      "r185",
      "r186",
      "r187",
      "r331",
      "r332",
      "r832",
      "r979",
      "r980",
      "r981",
      "r982",
      "r983",
      "r984",
      "r985",
      "r986",
      "r987",
      "r988"
     ]
    },
    "us-gaap_FinancingReceivablePortfolioSegmentDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivablePortfolioSegmentDomain",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/GuaranteesDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableAmortizedCostBasisofLoansModifiedDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableChangesintheAllowanceforLossesonLoansReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableCompositionofImpairedLoansbyPortfolioSegmentandClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableFinancingReceivableWeightedAverageModifiedPeriodDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanDelinquenciesDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanPortfoliobyPortfolioSegmentandbyClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoansModifiedwithPaymentDefaultDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableOriginatedandAcquiredLoansDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivablePerformanceofLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Financing Receivable Portfolio Segment [Domain]",
        "label": "Financing Receivable Portfolio Segment [Domain]",
        "documentation": "Level at which an entity develops and documents a systematic methodology to determine its allowance for credit losses."
       }
      }
     },
     "auth_ref": [
      "r184",
      "r185",
      "r186",
      "r187",
      "r979",
      "r980",
      "r981",
      "r982",
      "r983",
      "r984",
      "r985",
      "r986",
      "r987",
      "r988"
     ]
    },
    "nwbi_FinancingReceivableRecordedInvestment90DaysOrMorePastMaturityAndStillAccruing": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "FinancingReceivableRecordedInvestment90DaysOrMorePastMaturityAndStillAccruing",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanPortfoliobyPortfolioSegmentandbyClassofFinancingReceivableDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Loans 90 days past due and accruing",
        "label": "Financing Receivable, Recorded Investment, 90 Days Or More Past Maturity And Still Accruing",
        "documentation": "Financing Receivable, Recorded Investment, 90 Days Or More Past Maturity And Still Accruing"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableAmortizedCostBasisofLoansModifiedDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableChangesintheAllowanceforLossesonLoansReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableCompositionofImpairedLoansbyPortfolioSegmentandClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableFinancingReceivableWeightedAverageModifiedPeriodDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanDelinquenciesDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanPortfoliobyPortfolioSegmentandbyClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoansModifiedwithPaymentDefaultDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableOriginatedandAcquiredLoansDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivablePerformanceofLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Class of Financing Receivable [Axis]",
        "label": "Class of Financing Receivable [Axis]",
        "documentation": "Information by class of financing receivable determined on the basis of initial measurement attribute, risk characteristics and method of monitoring and assessing credit risk."
       }
      }
     },
     "auth_ref": [
      "r152",
      "r156",
      "r157",
      "r158",
      "r184",
      "r185",
      "r186",
      "r187",
      "r278",
      "r281",
      "r282",
      "r283",
      "r284",
      "r336",
      "r337",
      "r343",
      "r831",
      "r833",
      "r834",
      "r837",
      "r838",
      "r979",
      "r980",
      "r981",
      "r982",
      "r983",
      "r984",
      "r985",
      "r986",
      "r987",
      "r988",
      "r1023"
     ]
    },
    "us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableAmortizedCostBasisofLoansModifiedDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableChangesintheAllowanceforLossesonLoansReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableCompositionofImpairedLoansbyPortfolioSegmentandClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableFinancingReceivableWeightedAverageModifiedPeriodDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanDelinquenciesDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanPortfoliobyPortfolioSegmentandbyClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoansModifiedwithPaymentDefaultDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableOriginatedandAcquiredLoansDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivablePerformanceofLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Class of Financing Receivable [Domain]",
        "label": "Class of Financing Receivable [Domain]",
        "documentation": "Financing receivables determined on the basis of initial measurement attribute, risk characteristics and method of monitoring and assessing credit risk."
       }
      }
     },
     "auth_ref": [
      "r158",
      "r184",
      "r185",
      "r186",
      "r187",
      "r278",
      "r281",
      "r282",
      "r283",
      "r284",
      "r831",
      "r979",
      "r980",
      "r981",
      "r982",
      "r983",
      "r984",
      "r985",
      "r986",
      "r987",
      "r988",
      "r1023"
     ]
    },
    "us-gaap_FinancingReceivableRecordedInvestmentLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableRecordedInvestmentLineItems",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Credit quality indicators",
        "label": "Financing Receivable, Credit Quality Indicator [Line Items]",
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table."
       }
      }
     },
     "auth_ref": [
      "r152",
      "r837",
      "r1060"
     ]
    },
    "us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableRecordedInvestmentPastDueLineItems",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanDelinquenciesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Loan payment delinquencies",
        "label": "Financing Receivable, Past Due [Line Items]",
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table."
       }
      }
     },
     "auth_ref": [
      "r838",
      "r1059"
     ]
    },
    "us-gaap_FinancingReceivableUnamortizedLoanCommitmentOriginationFeeAndPremiumDiscount": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivableUnamortizedLoanCommitmentOriginationFeeAndPremiumDiscount",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableOriginatedandAcquiredLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Unearned income, unamortized premiums and discounts and deferred fees and costs",
        "label": "Financing Receivable, Unamortized Loan Cost (Fee) and Purchase Premium (Discount)",
        "documentation": "Amount of unamortized loan commitment, origination, and other costs (fees) and purchase premium (discount) on financing receivable recognized as adjustment to yield. Excludes financing receivable covered under loss sharing agreement."
       }
      }
     },
     "auth_ref": [
      "r976",
      "r1019",
      "r1024"
     ]
    },
    "us-gaap_FinancingReceivables30To59DaysPastDueMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivables30To59DaysPastDueMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanDelinquenciesDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivablePerformanceofLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "30-59\u00a0days delinquent",
        "label": "Financial Asset, 30 to 59 Days Past Due [Member]",
        "documentation": "Financial asset more than 29 days past due but fewer than 60 days past due."
       }
      }
     },
     "auth_ref": [
      "r838"
     ]
    },
    "us-gaap_FinancingReceivables60To89DaysPastDueMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivables60To89DaysPastDueMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanDelinquenciesDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivablePerformanceofLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "60-89\u00a0days delinquent",
        "label": "Financial Asset, 60 to 89 Days Past Due [Member]",
        "documentation": "Financial asset more than 59 days past due but fewer than 90 days past due."
       }
      }
     },
     "auth_ref": [
      "r838"
     ]
    },
    "us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivablesEqualToGreaterThan90DaysPastDueMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanDelinquenciesDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivablePerformanceofLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "90\u00a0days\u00a0or greater delinquent",
        "label": "Financial Asset, Equal to or Greater than 90 Days Past Due [Member]",
        "documentation": "Financial asset equal to or greater than 90 days past due."
       }
      }
     },
     "auth_ref": [
      "r838"
     ]
    },
    "us-gaap_FinancingReceivablesPeriodPastDueAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivablesPeriodPastDueAxis",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanDelinquenciesDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivablePerformanceofLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Financial Asset, Period Past Due [Axis]",
        "label": "Financial Asset, Aging [Axis]",
        "documentation": "Information by period in which financial asset is past due or not past due."
       }
      }
     },
     "auth_ref": [
      "r157",
      "r336",
      "r838"
     ]
    },
    "us-gaap_FinancingReceivablesPeriodPastDueDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FinancingReceivablesPeriodPastDueDomain",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanDelinquenciesDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivablePerformanceofLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Financial Asset, Period Past Due [Domain]",
        "label": "Financial Asset, Aging [Domain]",
        "documentation": "Period in which financial asset is past due or not past due. For past due, element name and standard label in Financial Asset, [numeric lower end] to [numeric higher end] [date measure] Past Due [Member] or Financial Asset, Greater than [low end numeric value] [date measure] Past Due [Member] or Financial Asset, Less than [high end numeric value] [date measure] Past Due [Member] formats."
       }
      }
     },
     "auth_ref": [
      "r157",
      "r336",
      "r838"
     ]
    },
    "us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FiniteLivedIntangibleAssetsAccumulatedAmortization",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/GoodwillandOtherIntangibleAssetsIntangibleAssetsDetails": {
       "parentTag": "us-gaap_FiniteLivedIntangibleAssetsNet",
       "weight": -1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/GoodwillandOtherIntangibleAssetsIntangibleAssetsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedLabel": "Less: accumulated amortization",
        "label": "Finite-Lived Intangible Assets, Accumulated Amortization",
        "documentation": "Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life."
       }
      }
     },
     "auth_ref": [
      "r196",
      "r351",
      "r362",
      "r841"
     ]
    },
    "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/GoodwillandOtherIntangibleAssetsIntangibleAssetsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "For the year ending December 31, 2025",
        "label": "Finite-Lived Intangible Asset, Expected Amortization, Year One",
        "documentation": "Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach)."
       }
      }
     },
     "auth_ref": [
      "r364",
      "r820",
      "r841"
     ]
    },
    "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/GoodwillandOtherIntangibleAssetsIntangibleAssetsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "For the year ending December 31, 2024",
        "label": "Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year",
        "documentation": "Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in remainder of current fiscal year."
       }
      }
     },
     "auth_ref": [
      "r1164"
     ]
    },
    "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseYearThree",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/GoodwillandOtherIntangibleAssetsIntangibleAssetsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "For the year ending December 31, 2027",
        "label": "Finite-Lived Intangible Asset, Expected Amortization, Year Three",
        "documentation": "Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach)."
       }
      }
     },
     "auth_ref": [
      "r364",
      "r820",
      "r841"
     ]
    },
    "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/GoodwillandOtherIntangibleAssetsIntangibleAssetsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "For the year ending December 31, 2026",
        "label": "Finite-Lived Intangible Asset, Expected Amortization, Year Two",
        "documentation": "Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach)."
       }
      }
     },
     "auth_ref": [
      "r364",
      "r820",
      "r841"
     ]
    },
    "us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FiniteLivedIntangibleAssetsByMajorClassAxis",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/GoodwillandOtherIntangibleAssetsIntangibleAssetsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Finite-Lived Intangible Assets by Major Class [Axis]",
        "label": "Finite-Lived Intangible Assets by Major Class [Axis]",
        "documentation": "Information by major type or class of finite-lived intangible assets."
       }
      }
     },
     "auth_ref": [
      "r356",
      "r358",
      "r359",
      "r360",
      "r361",
      "r362",
      "r365",
      "r366",
      "r661",
      "r662",
      "r820"
     ]
    },
    "us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/GoodwillandOtherIntangibleAssetsIntangibleAssetsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Estimated amortization expense",
        "label": "Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_FiniteLivedIntangibleAssetsGross": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FiniteLivedIntangibleAssetsGross",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/GoodwillandOtherIntangibleAssetsIntangibleAssetsDetails": {
       "parentTag": "us-gaap_FiniteLivedIntangibleAssetsNet",
       "weight": 1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/GoodwillandOtherIntangibleAssetsIntangibleAssetsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Intangible asset - gross",
        "label": "Finite-Lived Intangible Assets, Gross",
        "documentation": "Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life."
       }
      }
     },
     "auth_ref": [
      "r351",
      "r362",
      "r662",
      "r841"
     ]
    },
    "us-gaap_FiniteLivedIntangibleAssetsLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FiniteLivedIntangibleAssetsLineItems",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/GoodwillandOtherIntangibleAssetsIntangibleAssetsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Intangible assets subject to amortization",
        "label": "Finite-Lived Intangible Assets [Line Items]",
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table."
       }
      }
     },
     "auth_ref": [
      "r356",
      "r362",
      "r365",
      "r366",
      "r367",
      "r661",
      "r820",
      "r841"
     ]
    },
    "us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FiniteLivedIntangibleAssetsMajorClassNameDomain",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/GoodwillandOtherIntangibleAssetsIntangibleAssetsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Finite-Lived Intangible Assets, Major Class Name [Domain]",
        "label": "Finite-Lived Intangible Assets, Major Class Name [Domain]",
        "documentation": "The major class of finite-lived intangible asset (for example, patents, trademarks, copyrights, etc.) A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company."
       }
      }
     },
     "auth_ref": [
      "r356",
      "r358",
      "r359",
      "r360",
      "r361",
      "r362",
      "r365",
      "r366",
      "r820"
     ]
    },
    "us-gaap_FiniteLivedIntangibleAssetsNet": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FiniteLivedIntangibleAssetsNet",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/GoodwillandOtherIntangibleAssetsIntangibleAssetsDetails": {
       "parentTag": null,
       "weight": null,
       "order": null,
       "root": true
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/GoodwillandOtherIntangibleAssetsIntangibleAssetsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Intangible asset - net",
        "label": "Finite-Lived Intangible Assets, Net",
        "documentation": "Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life."
       }
      }
     },
     "auth_ref": [
      "r661",
      "r1081"
     ]
    },
    "us-gaap_FiniteLivedIntangibleAssetsNetAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "FiniteLivedIntangibleAssetsNetAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/GoodwillandOtherIntangibleAssetsIntangibleAssetsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Amortizable intangible assets:",
        "label": "Finite-Lived Intangible Assets, Net [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_FixedRateAgencyCMOsMortgageBackedSecuritiesMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "FixedRateAgencyCMOsMortgageBackedSecuritiesMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Fixed rate agency CMOs",
        "label": "Fixed Rate Agency CMOs Mortgage Backed Securities [Member]",
        "documentation": "Fixed Rate Agency CMOs Mortgage Backed Securities"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_FixedRatePassThroughMortgageBackedSecuritiesMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "FixedRatePassThroughMortgageBackedSecuritiesMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Fixed rate pass-through",
        "label": "Fixed Rate Pass-Through Mortgage Backed Securities [Member]",
        "documentation": "Fixed Rate Pass-Through Mortgage Backed Securities"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_ForeclosedRealEstateExpense": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ForeclosedRealEstateExpense",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_NoninterestExpense",
       "weight": 1.0,
       "order": 9.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Real estate owned expense",
        "label": "Foreclosed Real Estate Expense",
        "documentation": "Amount of expense recognized during the period for the foreclosure on real estate assets."
       }
      }
     },
     "auth_ref": []
    },
    "ecd_ForgoneRecoveryDueToDisqualificationOfTaxBenefitsAmt": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "ForgoneRecoveryDueToDisqualificationOfTaxBenefitsAmt",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Forgone Recovery due to Disqualification of Tax Benefits, Amount",
        "label": "Forgone Recovery due to Disqualification of Tax Benefits, Amount"
       }
      }
     },
     "auth_ref": [
      "r902",
      "r912",
      "r922",
      "r954"
     ]
    },
    "ecd_ForgoneRecoveryDueToExpenseOfEnforcementAmt": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "ForgoneRecoveryDueToExpenseOfEnforcementAmt",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Forgone Recovery due to Expense of Enforcement, Amount",
        "label": "Forgone Recovery due to Expense of Enforcement, Amount"
       }
      }
     },
     "auth_ref": [
      "r902",
      "r912",
      "r922",
      "r954"
     ]
    },
    "ecd_ForgoneRecoveryDueToViolationOfHomeCountryLawAmt": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "ForgoneRecoveryDueToViolationOfHomeCountryLawAmt",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Forgone Recovery due to Violation of Home Country Law, Amount",
        "label": "Forgone Recovery due to Violation of Home Country Law, Amount"
       }
      }
     },
     "auth_ref": [
      "r902",
      "r912",
      "r922",
      "r954"
     ]
    },
    "ecd_ForgoneRecoveryExplanationOfImpracticabilityTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "ForgoneRecoveryExplanationOfImpracticabilityTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Forgone Recovery, Explanation of Impracticability",
        "label": "Forgone Recovery, Explanation of Impracticability [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r902",
      "r912",
      "r922",
      "r954"
     ]
    },
    "ecd_ForgoneRecoveryIndName": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "ForgoneRecoveryIndName",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Name",
        "label": "Forgone Recovery, Individual Name"
       }
      }
     },
     "auth_ref": [
      "r902",
      "r912",
      "r922",
      "r954"
     ]
    },
    "us-gaap_ForwardContractsMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ForwardContractsMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsScheduleofDerivativeFinancialInstrumentsDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Forward commitments",
        "label": "Forward Contracts [Member]",
        "documentation": "Contracts negotiated between two parties to purchase and sell a specific quantity of a financial instrument, foreign currency, or commodity at a price specified at origination of the contract, with delivery and settlement at a specified future date."
       }
      }
     },
     "auth_ref": [
      "r1105"
     ]
    },
    "ecd_FrValAsOfPrrYrEndOfEqtyAwrdsGrntdInPrrYrsFldVstngCondsDrngCvrdYrMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "FrValAsOfPrrYrEndOfEqtyAwrdsGrntdInPrrYrsFldVstngCondsDrngCvrdYrMember",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year",
        "label": "Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member]"
       }
      }
     },
     "auth_ref": [
      "r935"
     ]
    },
    "us-gaap_GainLossOnSaleOfOtherAssets": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "GainLossOnSaleOfOtherAssets",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0,
       "order": 13.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedLabel": "Net (gain)/loss on sale of assets",
        "label": "Gain (Loss) on Disposition of Other Assets",
        "documentation": "Amount of gain (loss) on sale or disposal of other assets."
       }
      }
     },
     "auth_ref": [
      "r1000"
     ]
    },
    "us-gaap_GainLossOnSaleOfProperties": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "GainLossOnSaleOfProperties",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0,
       "order": 11.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedTerseLabel": "Mortgage banking activity",
        "label": "Gain (Loss) on Sale of Properties",
        "documentation": "The difference between the carrying value and the sale price of real estate or properties that were intended to be sold or held for capital appreciation or rental income. This element refers to the gain (loss) included in earnings and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method."
       }
      }
     },
     "auth_ref": [
      "r1000",
      "r1085",
      "r1087"
     ]
    },
    "nwbi_GainOnSaleOfMortgageServicingRights": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "GainOnSaleOfMortgageServicingRights",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_NoninterestIncome",
       "weight": 1.0,
       "order": 9.0
      },
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0,
       "order": 14.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited",
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Gain on sale of mortgage servicing rights",
        "negatedTerseLabel": "Gain on sale of mortgage servicing rights",
        "label": "Gain On Sale Of Mortgage Servicing Rights",
        "documentation": "Gain On Sale Of Mortgage Servicing Rights"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_GainOnSaleOfSBALoansNet": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "GainOnSaleOfSBALoansNet",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_NoninterestIncome",
       "weight": 1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Gain on sale of SBA loans",
        "label": "Gain On Sale Of SBA Loans, Net",
        "documentation": "Gain On Sale Of SBA Loans, Net"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_GainOnSaleOfSmallBusinessAdministrationLoans": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "GainOnSaleOfSmallBusinessAdministrationLoans",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0,
       "order": 12.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedLabel": "Gain on sale of SBA loans",
        "label": "Gain On Sale Of Small Business Administration Loans",
        "documentation": "Gain On Sale Of Small Business Administration Loans"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_GainsLossesOnSalesOfOtherRealEstate": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "GainsLossesOnSalesOfOtherRealEstate",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_NoninterestIncome",
       "weight": 1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Gain on real estate owned, net",
        "label": "Gains (Losses) on Sales of Other Real Estate",
        "documentation": "The net gain (loss) resulting from sales and other disposals of other real estate owned, increases (decreases) in the valuation allowance for foreclosed real estate, and write-downs of other real estate owned after acquisition or physical possession."
       }
      }
     },
     "auth_ref": [
      "r130"
     ]
    },
    "us-gaap_GeneralAndAdministrativeExpense": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "GeneralAndAdministrativeExpense",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_NoninterestExpense",
       "weight": 1.0,
       "order": 3.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Office operations",
        "label": "General and Administrative Expense",
        "documentation": "The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line."
       }
      }
     },
     "auth_ref": [
      "r89",
      "r765"
     ]
    },
    "us-gaap_Goodwill": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "Goodwill",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "us-gaap_Assets",
       "weight": 1.0,
       "order": 7.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited",
      "http://www.northwestsavingsbank.com/role/GoodwillandOtherIntangibleAssetsChangesintheCarryingAmountofGoodwillDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Goodwill",
        "label": "Goodwill",
        "documentation": "Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized."
       }
      }
     },
     "auth_ref": [
      "r195",
      "r352",
      "r664",
      "r830",
      "r840",
      "r862",
      "r873",
      "r1064",
      "r1071"
     ]
    },
    "us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "GoodwillAndIntangibleAssetsDisclosureAbstract",
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Goodwill and Intangible Assets Disclosure [Abstract]",
        "label": "Goodwill and Intangible Assets Disclosure [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "GoodwillAndIntangibleAssetsDisclosureTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/GoodwillandOtherIntangibleAssets"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Goodwill and Other Intangible Assets",
        "label": "Goodwill and Intangible Assets Disclosure [Text Block]",
        "documentation": "The entire disclosure for goodwill and intangible assets."
       }
      }
     },
     "auth_ref": [
      "r1062",
      "r1074"
     ]
    },
    "us-gaap_GoodwillImpairmentLoss": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "GoodwillImpairmentLoss",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/GoodwillandOtherIntangibleAssetsChangesintheCarryingAmountofGoodwillDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Goodwill impairment",
        "label": "Goodwill, Impairment Loss",
        "documentation": "Amount of impairment loss from asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized."
       }
      }
     },
     "auth_ref": [
      "r12",
      "r353",
      "r354",
      "r355",
      "r840",
      "r862"
     ]
    },
    "us-gaap_GovernmentNationalMortgageAssociationCertificatesAndObligationsGNMAMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "GovernmentNationalMortgageAssociationCertificatesAndObligationsGNMAMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "GNMA",
        "label": "Government National Mortgage Association Certificates and Obligations (GNMA) [Member]",
        "documentation": "Investments in debentures, bonds and other debt securities issued by the Government National Mortgage Association (GNMA or Ginnie Mae)."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_GuaranteeObligationsLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "GuaranteeObligationsLineItems",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/GuaranteesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Guarantor Obligations [Line Items]",
        "label": "Guarantor Obligations [Line Items]",
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table."
       }
      }
     },
     "auth_ref": [
      "r379",
      "r384",
      "r386",
      "r389"
     ]
    },
    "us-gaap_GuaranteeObligationsMaximumExposure": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "GuaranteeObligationsMaximumExposure",
     "crdr": "credit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/GuaranteesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Maximum potential amount of future payments",
        "label": "Guarantor Obligations, Maximum Exposure, Undiscounted",
        "documentation": "Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions."
       }
      }
     },
     "auth_ref": [
      "r384"
     ]
    },
    "nwbi_GuaranteeObligationsMaximumExposureCollateralized": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "GuaranteeObligationsMaximumExposureCollateralized",
     "crdr": "credit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/GuaranteesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Maximum exposure collateralized",
        "label": "Guarantee Obligations Maximum Exposure Collateralized",
        "documentation": "Represents the maximum potential amount of future payments which is fully collateralized."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_GuaranteesAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "GuaranteesAbstract",
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Guarantees [Abstract]",
        "label": "Guarantees [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_GuaranteesTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "GuaranteesTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/Guarantees"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Guarantees",
        "label": "Guarantees [Text Block]",
        "documentation": "The entire disclosure for each guarantee obligation, or each group of similar guarantee obligations, including (a) the nature of the guarantee, including its term, how it arose, and the events or circumstances that would require the guarantor to perform under the guarantee; (b) the maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee; (c) the current carrying amount of the liability, if any, for the guarantor's obligations under the guarantee; and (d) the nature of any recourse provisions under the guarantee, and any assets held either as collateral or by third parties, and any relevant related party disclosure. Excludes disclosures about product warranties."
       }
      }
     },
     "auth_ref": [
      "r378",
      "r380",
      "r381",
      "r382",
      "r383",
      "r385",
      "r387",
      "r388"
     ]
    },
    "us-gaap_HedgingDesignationAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "HedgingDesignationAxis",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsKeyCharacteristicsofInterestRateDerivativeTransactionsDetails",
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsNarrativeDetails",
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsScheduleofDerivativeFinancialInstrumentsDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Hedging Designation [Axis]",
        "label": "Hedging Designation [Axis]",
        "documentation": "Information by designation of purpose of derivative instrument."
       }
      }
     },
     "auth_ref": [
      "r20",
      "r556"
     ]
    },
    "us-gaap_HedgingDesignationDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "HedgingDesignationDomain",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsKeyCharacteristicsofInterestRateDerivativeTransactionsDetails",
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsNarrativeDetails",
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsScheduleofDerivativeFinancialInstrumentsDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Hedging Designation [Domain]",
        "label": "Hedging Designation [Domain]",
        "documentation": "Designation of purpose of derivative instrument."
       }
      }
     },
     "auth_ref": [
      "r20"
     ]
    },
    "nwbi_HeldToMaturityAndAvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "HeldToMaturityAndAvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesFairValueofandGrossUnrealizedLossesonInvestmentSecuritiesDetails": {
       "parentTag": "nwbi_HeldToMaturityAndAvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses",
       "weight": 1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesFairValueofandGrossUnrealizedLossesonInvestmentSecuritiesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedLabel": "12 months or more - Unrealized loss",
        "label": "Held To Maturity And Available For Sale Securities Continuous Unrealized Loss Position 12 Months Or Longer Aggregate Losses",
        "documentation": "Amount of the excess of amortized cost basis over fair value of securities that have been in a loss position for twelve months or longer for securities which are categorized as held-to-maturity and available-for-sale securities."
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_HeldToMaturityAndAvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "HeldToMaturityAndAvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesFairValueofandGrossUnrealizedLossesonInvestmentSecuritiesDetails": {
       "parentTag": null,
       "weight": null,
       "order": null,
       "root": true
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesFairValueofandGrossUnrealizedLossesonInvestmentSecuritiesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedTotalLabel": "Total - Unrealized loss",
        "label": "Held To Maturity And Available For Sale Securities Continuous Unrealized Loss Position Aggregate Losses",
        "documentation": "This item represents the excess of amortized cost basis over fair value of securities in a loss position and which are categorized as held-to-maturity and available-for-sale securities."
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_HeldToMaturityAndAvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "HeldToMaturityAndAvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesFairValueofandGrossUnrealizedLossesonInvestmentSecuritiesDetails": {
       "parentTag": null,
       "weight": null,
       "order": null,
       "root": true
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesFairValueofandGrossUnrealizedLossesonInvestmentSecuritiesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Total - Fair value",
        "label": "Held To Maturity And Available For Sale Securities Continuous Unrealized Loss Position Fair Value",
        "documentation": "This item represents the aggregate fair value of investments in debt and equity securities in an unrealized loss position which are categorized as held-to-maturity and available-for-sale securities."
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_HeldToMaturityAndAvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "HeldToMaturityAndAvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesFairValueofandGrossUnrealizedLossesonInvestmentSecuritiesDetails": {
       "parentTag": "nwbi_HeldToMaturityAndAvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses",
       "weight": 1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesFairValueofandGrossUnrealizedLossesonInvestmentSecuritiesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedLabel": "Less than 12 months - Unrealized loss",
        "label": "Held To Maturity And Available For Sale Securities Continuous Unrealized Loss Position Less Than 12 Months Aggregate Losses",
        "documentation": "This item represents the excess of amortized cost basis over fair value of securities that have been in a loss position for less than twelve months."
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_HeldToMaturityAndAvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "HeldToMaturityAndAvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesFairValueofandGrossUnrealizedLossesonInvestmentSecuritiesDetails": {
       "parentTag": "nwbi_HeldToMaturityAndAvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue",
       "weight": 1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesFairValueofandGrossUnrealizedLossesonInvestmentSecuritiesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Less than 12 months - Fair value",
        "label": "Held To Maturity And Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value",
        "documentation": "This item represents the aggregate fair value of investments in debt and equity securities categorized as held-to-maturity and available-for-sale securities that have been in a continuous unrealized loss position for less than twelve months."
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_HeldToMaturityAndAvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "HeldToMaturityAndAvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesFairValueofandGrossUnrealizedLossesonInvestmentSecuritiesDetails": {
       "parentTag": "nwbi_HeldToMaturityAndAvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue",
       "weight": 1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesFairValueofandGrossUnrealizedLossesonInvestmentSecuritiesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "12 months or more - Fair value",
        "label": "Held To Maturity And Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value",
        "documentation": "This item represents the aggregate fair value of investments in debt and equity securities categorized as held-to-maturity and available-for-sale securities that have been in a continuous unrealized loss position for twelve months or longer."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails": {
       "parentTag": "us-gaap_DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss",
       "weight": -1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Gross unrealized holding gains",
        "label": "Debt Securities, Held-to-Maturity, Accumulated Unrecognized Gain",
        "documentation": "Amount of accumulated unrecognized gain on investment in debt security measured at amortized cost (held-to-maturity)."
       }
      }
     },
     "auth_ref": [
      "r161",
      "r311"
     ]
    },
    "us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails": {
       "parentTag": "us-gaap_DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss",
       "weight": 1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedTerseLabel": "Gross unrealized holding losses",
        "label": "Debt Securities, Held-to-Maturity, Accumulated Unrecognized Loss",
        "documentation": "Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity)."
       }
      }
     },
     "auth_ref": [
      "r162",
      "r312"
     ]
    },
    "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturitybyContractualMaturityDetails": {
       "parentTag": "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue",
       "weight": 1.0,
       "order": 1.0
      },
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails": {
       "parentTag": "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount",
       "weight": 1.0,
       "order": 3.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturitybyContractualMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Due after five years through ten years",
        "label": "Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10",
        "documentation": "Fair value of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach)."
       }
      }
     },
     "auth_ref": [
      "r166",
      "r172",
      "r316",
      "r680"
     ]
    },
    "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturitybyContractualMaturityDetails": {
       "parentTag": "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis",
       "weight": 1.0,
       "order": 2.0
      },
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails": {
       "parentTag": null,
       "weight": null,
       "order": null,
       "root": true
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturitybyContractualMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Due after five years through ten years",
        "terseLabel": "Due after five years through ten years",
        "label": "Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, after Year 5 through 10",
        "documentation": "Amount, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity) with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach)."
       }
      }
     },
     "auth_ref": [
      "r308",
      "r676"
     ]
    },
    "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails": {
       "parentTag": "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount",
       "weight": 1.0,
       "order": 2.0
      },
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturitybyContractualMaturityDetails": {
       "parentTag": "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue",
       "weight": 1.0,
       "order": 4.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturitybyContractualMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Due after one year through five years",
        "label": "Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five",
        "documentation": "Fair value of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach)."
       }
      }
     },
     "auth_ref": [
      "r165",
      "r171",
      "r315",
      "r679"
     ]
    },
    "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturitybyContractualMaturityDetails": {
       "parentTag": "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis",
       "weight": 1.0,
       "order": 1.0
      },
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails": {
       "parentTag": null,
       "weight": null,
       "order": null,
       "root": true
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturitybyContractualMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Due after one year through five years",
        "terseLabel": "Due after one year through five years",
        "label": "Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, after Year One through Five",
        "documentation": "Amount, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity) with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach)."
       }
      }
     },
     "auth_ref": [
      "r307",
      "r675"
     ]
    },
    "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturitybyContractualMaturityDetails": {
       "parentTag": "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue",
       "weight": 1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturitybyContractualMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Due after ten years",
        "label": "Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10",
        "documentation": "Fair value of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing after tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach)."
       }
      }
     },
     "auth_ref": [
      "r167",
      "r173",
      "r317",
      "r681"
     ]
    },
    "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturitybyContractualMaturityDetails": {
       "parentTag": "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis",
       "weight": 1.0,
       "order": 4.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturitybyContractualMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Due after ten years",
        "label": "Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, after Year 10",
        "documentation": "Amount, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity) with single maturity date and allocated without single maturity date, maturing after tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach)."
       }
      }
     },
     "auth_ref": [
      "r309",
      "r677"
     ]
    },
    "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesFairValueAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "HeldToMaturitySecuritiesDebtMaturitiesFairValueAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturitybyContractualMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Fair value",
        "verboseLabel": "Fair value",
        "label": "Debt Securities, Held-to-Maturity, Fair Value, Maturity [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_HeldToMaturitySecuritiesDebtMaturitiesGrossUnrealizedGainAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "HeldToMaturitySecuritiesDebtMaturitiesGrossUnrealizedGainAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Gross unrealized holding gains",
        "label": "Held-to-maturity Securities, Debt Maturities, Gross Unrealized Gain [Abstract]",
        "documentation": "Held-to-maturity Securities, Debt Maturities, Gross Unrealized Gain [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesNetCarryingAmountAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "HeldToMaturitySecuritiesDebtMaturitiesNetCarryingAmountAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturitybyContractualMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Amortized cost",
        "verboseLabel": "Amortized cost",
        "label": "Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturitybyContractualMaturityDetails": {
       "parentTag": null,
       "weight": null,
       "order": null,
       "root": true
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturitybyContractualMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Amortized cost",
        "label": "Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date",
        "documentation": "Amount, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity) with single maturity date and allocated without single maturity date."
       }
      }
     },
     "auth_ref": [
      "r1039",
      "r1143"
     ]
    },
    "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturitybyContractualMaturityDetails": {
       "parentTag": null,
       "weight": null,
       "order": null,
       "root": true
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturitybyContractualMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Total mortgage-backed securities",
        "label": "Debt Securities, Held-to-Maturity, Maturity, Allocated and Single Maturity Date, Fair Value",
        "documentation": "Fair value of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date."
       }
      }
     },
     "auth_ref": [
      "r163",
      "r169",
      "r1047",
      "r1144"
     ]
    },
    "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturitybyContractualMaturityDetails": {
       "parentTag": "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue",
       "weight": 1.0,
       "order": 3.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturitybyContractualMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Due within one year",
        "label": "Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, Year One",
        "documentation": "Fair value of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach)."
       }
      }
     },
     "auth_ref": [
      "r164",
      "r170",
      "r314",
      "r678"
     ]
    },
    "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturitybyContractualMaturityDetails": {
       "parentTag": "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis",
       "weight": 1.0,
       "order": 3.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturitybyContractualMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Due within one year",
        "label": "Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Year One",
        "documentation": "Amount, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity) with single maturity date and allocated without single maturity date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach)."
       }
      }
     },
     "auth_ref": [
      "r306",
      "r674"
     ]
    },
    "us-gaap_HeldToMaturitySecuritiesFairValue": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "HeldToMaturitySecuritiesFairValue",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails": {
       "parentTag": "us-gaap_AssetsFairValueDisclosure",
       "weight": 1.0,
       "order": 2.0
      },
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails": {
       "parentTag": "us-gaap_DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss",
       "weight": 1.0,
       "order": 3.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnauditedParenthetical",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "verboseLabel": "Securities held-to-maturity",
        "terseLabel": "Fair value",
        "label": "Debt Securities, Held-to-Maturity, Fair Value",
        "documentation": "Fair value of investment in debt security measured at amortized cost (held-to-maturity)."
       }
      }
     },
     "auth_ref": [
      "r160",
      "r310",
      "r583",
      "r595",
      "r665",
      "r683"
     ]
    },
    "us-gaap_HeldToMaturitySecuritiesTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "HeldToMaturitySecuritiesTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of the portfolio of investment securities held-to-maturity",
        "label": "Debt Securities, Held-to-Maturity [Table Text Block]",
        "documentation": "Tabular disclosure of information about investment in debt security measured at amortized cost (held-to-maturity)."
       }
      }
     },
     "auth_ref": [
      "r1034",
      "r1035",
      "r1036",
      "r1037",
      "r1038",
      "r1039",
      "r1040",
      "r1041",
      "r1042",
      "r1043",
      "r1044",
      "r1045",
      "r1046",
      "r1047",
      "r1048",
      "r1049",
      "r1050",
      "r1051"
     ]
    },
    "nwbi_HeldToMaturitySecuritiesUnrealizedLossesAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "HeldToMaturitySecuritiesUnrealizedLossesAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Gross unrealized holding losses",
        "label": "Held-to-maturity Securities, Unrealized Losses [Abstract]",
        "documentation": "Held-to-maturity Securities, Unrealized Losses [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_HomeEquityLoanMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "HomeEquityLoanMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableAmortizedCostBasisofLoansModifiedDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableChangesintheAllowanceforLossesonLoansReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableCompositionofImpairedLoansbyPortfolioSegmentandClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableFinancingReceivableWeightedAverageModifiedPeriodDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanDelinquenciesDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanPortfoliobyPortfolioSegmentandbyClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableOriginatedandAcquiredLoansDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivablePerformanceofLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Home equity loans",
        "label": "Home Equity Loan [Member]",
        "documentation": "Loan based on the equity of the borrower's residential property in which the borrower receives the loan amount upfront. Excludes home equity lines of credit."
       }
      }
     },
     "auth_ref": [
      "r1017"
     ]
    },
    "nwbi_ImpairedLoansMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "ImpairedLoansMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsNonrecurringAssetsthathadFairMarketValuesBelowtheCarryingAmountDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "verboseLabel": "Loans individually assessed",
        "label": "Impaired Loans [Member]",
        "documentation": "Represents information pertaining to impaired loans."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_ImpairmentOfRealEstate": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ImpairmentOfRealEstate",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0,
       "order": 7.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Noncash write-down of other assets",
        "label": "Impairment of Real Estate",
        "documentation": "The charge against earnings in the period to reduce the carrying amount of real property to fair value."
       }
      }
     },
     "auth_ref": [
      "r1000",
      "r1086"
     ]
    },
    "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_NetIncomeLoss",
       "weight": 1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Income before income taxes",
        "label": "Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest",
        "documentation": "Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest."
       }
      }
     },
     "auth_ref": [
      "r87",
      "r132",
      "r145",
      "r673",
      "r693",
      "r828",
      "r829",
      "r1011",
      "r1012",
      "r1013",
      "r1014",
      "r1015"
     ]
    },
    "us-gaap_IncomeStatementAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "IncomeStatementAbstract",
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Income Statement [Abstract]",
        "label": "Income Statement [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_IncomeStatementLocationAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "IncomeStatementLocationAxis",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsGainLossonDerivativeFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Income Statement Location [Axis]",
        "label": "Statement of Income Location, Balance [Axis]",
        "documentation": "Information by location in statement of income where disaggregated amount has been reported."
       }
      }
     },
     "auth_ref": [
      "r370",
      "r371",
      "r373",
      "r588",
      "r592",
      "r597",
      "r702",
      "r704",
      "r766",
      "r820",
      "r864",
      "r1150"
     ]
    },
    "us-gaap_IncomeStatementLocationDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "IncomeStatementLocationDomain",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsGainLossonDerivativeFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Income Statement Location [Domain]",
        "label": "Statement of Income Location, Balance [Domain]",
        "documentation": "Location in statement of income where disaggregated amount has been reported."
       }
      }
     },
     "auth_ref": [
      "r371",
      "r373",
      "r588",
      "r592",
      "r597",
      "r702",
      "r704",
      "r766",
      "r820",
      "r864",
      "r1150"
     ]
    },
    "us-gaap_IncomeTaxExpenseBenefit": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "IncomeTaxExpenseBenefit",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_NetIncomeLoss",
       "weight": -1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "verboseLabel": "Federal and state income taxes expense",
        "label": "Income Tax Expense (Benefit)",
        "documentation": "Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations."
       }
      }
     },
     "auth_ref": [
      "r174",
      "r178",
      "r245",
      "r246",
      "r268",
      "r272",
      "r274",
      "r525",
      "r526",
      "r532",
      "r700",
      "r859"
     ]
    },
    "us-gaap_IncomeTaxesPaid": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "IncomeTaxesPaid",
     "crdr": "credit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Income taxes",
        "label": "Income Taxes Paid",
        "documentation": "Amount, before refund, of cash paid to foreign, federal, state, and local jurisdictions as income tax."
       }
      }
     },
     "auth_ref": [
      "r32",
      "r96",
      "r1001",
      "r1100",
      "r1101"
     ]
    },
    "us-gaap_IncreaseDecreaseInAdvancePaymentsByBorrowersForTaxesAndInsurance": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "IncreaseDecreaseInAdvancePaymentsByBorrowersForTaxesAndInsurance",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": 1.0,
       "order": 3.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Increase in advances by borrowers for taxes and insurance",
        "label": "Increase (Decrease) in Advance Payments by Borrowers for Taxes and Insurance",
        "documentation": "Amount of increase (decrease) in prepayments received from borrowers for taxes and insurance remitted to the appropriate tax authority or insurer on behalf of the borrower."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_IncreaseDecreaseInDeposits": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "IncreaseDecreaseInDeposits",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": 1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "verboseLabel": "Net increase in deposits",
        "label": "Increase (Decrease) in Deposits",
        "documentation": "The net cash inflow or outflow for the increase (decrease) in the beginning and end of period deposits balances."
       }
      }
     },
     "auth_ref": [
      "r31",
      "r141"
     ]
    },
    "us-gaap_IncreaseDecreaseInOtherOperatingAssets": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "IncreaseDecreaseInOtherOperatingAssets",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0,
       "order": 4.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedLabel": "Decrease/(increase) in other assets",
        "label": "Increase (Decrease) in Other Operating Assets",
        "documentation": "Amount of increase (decrease) in operating assets classified as other."
       }
      }
     },
     "auth_ref": [
      "r11"
     ]
    },
    "us-gaap_IncreaseDecreaseInOtherOperatingLiabilities": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "IncreaseDecreaseInOtherOperatingLiabilities",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0,
       "order": 5.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Increase/(decrease) in other liabilities",
        "label": "Increase (Decrease) in Other Operating Liabilities",
        "documentation": "Amount of increase (decrease) in operating liabilities classified as other."
       }
      }
     },
     "auth_ref": [
      "r11"
     ]
    },
    "us-gaap_IncreaseDecreaseInStockholdersEquityRollForward": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "IncreaseDecreaseInStockholdersEquityRollForward",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITYUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Increase (Decrease) in Stockholders' Equity",
        "label": "Increase (Decrease) in Stockholders' Equity [Roll Forward]",
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period."
       }
      }
     },
     "auth_ref": []
    },
    "ecd_IndividualAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "IndividualAxis",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure",
      "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure",
      "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements",
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Individual:",
        "label": "Individual [Axis]"
       }
      }
     },
     "auth_ref": [
      "r902",
      "r912",
      "r922",
      "r946",
      "r954",
      "r958",
      "r966"
     ]
    },
    "us-gaap_InformationTechnologyAndDataProcessing": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "InformationTechnologyAndDataProcessing",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_NoninterestExpense",
       "weight": 1.0,
       "order": 5.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Processing expenses",
        "label": "Information Technology and Data Processing",
        "documentation": "The amount of expenses incurred in the period for information technology and data processing products and services."
       }
      }
     },
     "auth_ref": [
      "r90"
     ]
    },
    "ecd_InsiderTradingArrLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "InsiderTradingArrLineItems",
     "lang": {
      "en-us": {
       "role": {
        "label": "Insider Trading Arrangements [Line Items]"
       }
      }
     },
     "auth_ref": [
      "r964"
     ]
    },
    "ecd_InsiderTradingPoliciesProcLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "InsiderTradingPoliciesProcLineItems",
     "lang": {
      "en-us": {
       "role": {
        "label": "Insider Trading Policies and Procedures [Line Items]"
       }
      }
     },
     "auth_ref": [
      "r894",
      "r970"
     ]
    },
    "ecd_InsiderTrdPoliciesProcAdoptedFlag": {
     "xbrltype": "booleanItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "InsiderTrdPoliciesProcAdoptedFlag",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/InsiderTradingPoliciesProc"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Insider Trading Policies and Procedures Adopted",
        "label": "Insider Trading Policies and Procedures Adopted [Flag]"
       }
      }
     },
     "auth_ref": [
      "r894",
      "r970"
     ]
    },
    "ecd_InsiderTrdPoliciesProcNotAdoptedTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "InsiderTrdPoliciesProcNotAdoptedTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/InsiderTradingPoliciesProc"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Insider Trading Policies and Procedures Not Adopted",
        "label": "Insider Trading Policies and Procedures Not Adopted [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r894",
      "r970"
     ]
    },
    "us-gaap_IntangibleAssetsNetExcludingGoodwill": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "IntangibleAssetsNetExcludingGoodwill",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "us-gaap_Assets",
       "weight": 1.0,
       "order": 8.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Other intangible assets, net",
        "label": "Intangible Assets, Net (Excluding Goodwill)",
        "documentation": "Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges."
       }
      }
     },
     "auth_ref": [
      "r356",
      "r1081",
      "r1082"
     ]
    },
    "us-gaap_InterestAndDividendIncomeOperating": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "InterestAndDividendIncomeOperating",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_InterestIncomeExpenseNet",
       "weight": 1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Total interest income",
        "label": "Interest and Dividend Income, Operating",
        "documentation": "Represents the total of interest and dividend income, including any amortization and accretion (as applicable) of discounts and premiums, earned from (1) loans and leases whether held-for-sale or held-in-portfolio; (2) investment securities; (3) federal funds sold; (4) securities purchased under agreements to resell; (5) investments in banker's acceptances, commercial paper, or certificates of deposit; (6) dividend income; or (7) other investments not otherwise specified herein."
       }
      }
     },
     "auth_ref": [
      "r125",
      "r133",
      "r135",
      "r136",
      "r137",
      "r1163"
     ]
    },
    "us-gaap_InterestAndDividendIncomeOperatingAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "InterestAndDividendIncomeOperatingAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Interest income:",
        "label": "Interest and Dividend Income, Operating [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_InterestAndFeeIncomeLoansAndLeases": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "InterestAndFeeIncomeLoansAndLeases",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_InterestAndDividendIncomeOperating",
       "weight": 1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Loans receivable",
        "label": "Interest and Fee Income, Loans and Leases",
        "documentation": "The aggregate interest and fee income generated by: (1) loans the Entity has positive intent and ability to hold for the foreseeable future, or until maturity or payoff, including commercial and consumer loans, whether domestic or foreign, which may consist of: (a) industrial and agricultural; (b) real estate; and (c) real estate construction loans; (d) trade financing; (e) lease financing; (f) home equity lines-of-credit; (g) automobile and other vehicle loans; and (h) credit card and other revolving-type loans and (2) loans and leases held-for-sale which may include mortgage loans, direct financing, and sales-type leases."
       }
      }
     },
     "auth_ref": [
      "r125"
     ]
    },
    "us-gaap_InterestBearingDomesticDepositChecking": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "InterestBearingDomesticDepositChecking",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "us-gaap_Deposits",
       "weight": 1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Interest-bearing demand deposits",
        "label": "Interest-Bearing Domestic Deposit, Checking",
        "documentation": "Amount of interest-bearing domestic checking deposit liabilities."
       }
      }
     },
     "auth_ref": [
      "r119"
     ]
    },
    "us-gaap_InterestExpenseAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "InterestExpenseAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Interest expense:",
        "label": "Interest Expense, Operating and Nonoperating [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_InterestExpenseBorrowings": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "InterestExpenseBorrowings",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_InterestExpenseOperating",
       "weight": 1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Borrowed funds",
        "label": "Interest Expense, Borrowings",
        "documentation": "Aggregate amount of interest expense on all borrowings."
       }
      }
     },
     "auth_ref": [
      "r139",
      "r140"
     ]
    },
    "us-gaap_InterestExpenseDeposits": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "InterestExpenseDeposits",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_InterestExpenseOperating",
       "weight": 1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Deposits",
        "label": "Interest Expense, Deposits",
        "documentation": "Aggregate amount of interest expense on all deposits."
       }
      }
     },
     "auth_ref": [
      "r138"
     ]
    },
    "us-gaap_InterestExpenseOperating": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "InterestExpenseOperating",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_InterestIncomeExpenseNet",
       "weight": -1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Total interest expense",
        "label": "Interest Expense, Operating",
        "documentation": "Amount of interest expense classified as operating."
       }
      }
     },
     "auth_ref": [
      "r271",
      "r672",
      "r994"
     ]
    },
    "us-gaap_InterestIncomeDepositsWithFinancialInstitutions": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "InterestIncomeDepositsWithFinancialInstitutions",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_InterestAndDividendIncomeOperating",
       "weight": 1.0,
       "order": 6.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Interest-earning deposits",
        "label": "Interest Income, Deposits with Financial Institutions",
        "documentation": "Interest income derived from funds deposited with both domestic and foreign financial institutions including funds in money market and other accounts."
       }
      }
     },
     "auth_ref": [
      "r136",
      "r179",
      "r180"
     ]
    },
    "us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "InterestIncomeExpenseAfterProvisionForLoanLoss",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
       "weight": 1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Net interest income after provision for credit losses",
        "label": "Interest Income (Expense), after Provision for Loan Loss",
        "documentation": "Amount of interest income or expense, including any amortization and accretion (as applicable) of discounts and premiums, including consideration of the provisions for loan, lease, credit, and other related losses."
       }
      }
     },
     "auth_ref": [
      "r127"
     ]
    },
    "us-gaap_InterestIncomeExpenseNet": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "InterestIncomeExpenseNet",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss",
       "weight": 1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Net interest income",
        "label": "Interest Income (Expense), Operating",
        "documentation": "Amount of interest income (expense) classified as operating."
       }
      }
     },
     "auth_ref": [
      "r667",
      "r1012"
     ]
    },
    "us-gaap_InterestIncomeSecuritiesMortgageBacked": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "InterestIncomeSecuritiesMortgageBacked",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_InterestAndDividendIncomeOperating",
       "weight": 1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Mortgage-backed securities",
        "label": "Interest Income, Securities, Mortgage-Backed",
        "documentation": "Amount of operating interest income, including amortization and accretion of premiums and discounts, on securitized, pass-through debt securities collateralized by real estate mortgage loans."
       }
      }
     },
     "auth_ref": [
      "r133"
     ]
    },
    "us-gaap_InterestIncomeSecuritiesTaxExempt": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "InterestIncomeSecuritiesTaxExempt",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_InterestAndDividendIncomeOperating",
       "weight": 1.0,
       "order": 4.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Tax-free investment securities",
        "label": "Interest Income, Securities, Operating, Tax Exempt",
        "documentation": "Amount of operating interest income, including amortization and accretion of premiums and discounts, on securities exempt from state, federal and other income tax."
       }
      }
     },
     "auth_ref": [
      "r133",
      "r179",
      "r182"
     ]
    },
    "us-gaap_InterestIncomeSecuritiesTaxable": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "InterestIncomeSecuritiesTaxable",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_InterestAndDividendIncomeOperating",
       "weight": 1.0,
       "order": 3.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Taxable investment securities",
        "label": "Interest Income, Securities, Operating, Taxable",
        "documentation": "Amount of operating interest income, including amortization and accretion of premiums and discounts, on securities subject to state, federal and other income tax."
       }
      }
     },
     "auth_ref": [
      "r133",
      "r179",
      "r182"
     ]
    },
    "us-gaap_InterestPaidNet": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "InterestPaidNet",
     "crdr": "credit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Interest paid, net",
        "label": "Interest Paid, Excluding Capitalized Interest, Operating Activities",
        "documentation": "Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount."
       }
      }
     },
     "auth_ref": [
      "r224",
      "r226",
      "r227"
     ]
    },
    "us-gaap_InterestPayableCurrentAndNoncurrent": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "InterestPayableCurrentAndNoncurrent",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0,
       "order": 4.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Accrued interest payable",
        "label": "Interest Payable",
        "documentation": "Amount of interest payable on debt, including, but not limited to, trade payables."
       }
      }
     },
     "auth_ref": [
      "r121",
      "r1146"
     ]
    },
    "us-gaap_InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet",
     "crdr": "credit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsKeyCharacteristicsofInterestRateDerivativeTransactionsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Estimated decrease to interest expense in the next twelve months",
        "label": "Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net",
        "documentation": "The estimated net amount of unrealized gains or losses on interest rate cash flow hedges as of the balance sheet date expected to be reclassified to earnings within the next twelve months."
       }
      }
     },
     "auth_ref": [
      "r58"
     ]
    },
    "us-gaap_InterestRateLockCommitmentsMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "InterestRateLockCommitmentsMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsScheduleofDerivativeFinancialInstrumentsDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Interest rate lock commitments",
        "label": "Interest Rate Lock Commitments [Member]",
        "documentation": "Commitments to extend credit where the interest rate is locked in advance of funds being disbursed for a specified period of time."
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_InterestRateSwapIssuedAugust92023ContractSixMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "InterestRateSwapIssuedAugust92023ContractSixMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsKeyCharacteristicsofInterestRateDerivativeTransactionsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Issued August 9, 2023",
        "label": "Interest Rate Swap, Issued August 9, 2023 Contract Six [Member]",
        "documentation": "Interest Rate Swap, Issued August 9, 2023 Contract Six"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_InterestRateSwapIssuedJuly262023ContractFourMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "InterestRateSwapIssuedJuly262023ContractFourMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsKeyCharacteristicsofInterestRateDerivativeTransactionsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Issued July 26, 2023",
        "label": "Interest Rate Swap, Issued July 26, 2023 Contract Four [Member]",
        "documentation": "Interest Rate Swap, Issued July 26, 2023 Contract Four"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_InterestRateSwapIssuedJuly312023ContractFiveMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "InterestRateSwapIssuedJuly312023ContractFiveMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsKeyCharacteristicsofInterestRateDerivativeTransactionsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Issued July 31, 2023",
        "label": "Interest Rate Swap, Issued July 31, 2023 Contract Five [Member]",
        "documentation": "Interest Rate Swap, Issued July 31, 2023 Contract Five"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_InterestRateSwapIssuedMay112023Member": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "InterestRateSwapIssuedMay112023Member",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsKeyCharacteristicsofInterestRateDerivativeTransactionsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Issued May 11, 2023",
        "label": "Interest Rate Swap, Issued May 11, 2023 [Member]",
        "documentation": "Interest Rate Swap, Issued May 11, 2023 [Member]"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_InterestRateSwapIssuedMay122023ContractOneMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "InterestRateSwapIssuedMay122023ContractOneMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsKeyCharacteristicsofInterestRateDerivativeTransactionsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Issued May 12, 2023",
        "label": "Interest Rate Swap, Issued May 12, 2023 Contract One [Member]",
        "documentation": "Interest Rate Swap, Issued May 12, 2023 Contract One [Member]"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_InterestRateSwapIssuedMay192023ContractTwoMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "InterestRateSwapIssuedMay192023ContractTwoMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsKeyCharacteristicsofInterestRateDerivativeTransactionsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Issued May 19, 2023",
        "label": "Interest Rate Swap, Issued May 19, 2023, Contract Two [Member]",
        "documentation": "Interest Rate Swap, Issued May 19, 2023, Contract Two [Member]"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_InterestRateSwapIssuedMay312023ContractThreeMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "InterestRateSwapIssuedMay312023ContractThreeMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsKeyCharacteristicsofInterestRateDerivativeTransactionsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Issued May 31, 2023",
        "label": "Interest Rate Swap, Issued May 31, 2023 Contract Three [Member]",
        "documentation": "Interest Rate Swap, Issued May 25, 2023 [Member]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_InterestRateSwapMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "InterestRateSwapMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsKeyCharacteristicsofInterestRateDerivativeTransactionsDetails",
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsNarrativeDetails",
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsScheduleofDerivativeFinancialInstrumentsDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "netLabel": "Interest rate swap agreements",
        "label": "Interest Rate Swap [Member]",
        "documentation": "Forward based contracts in which two parties agree to swap periodic payments that are fixed at the outset of the swap contract with variable payments based on a market interest rate (index rate) over a specified period."
       }
      }
     },
     "auth_ref": [
      "r821",
      "r884",
      "r885"
     ]
    },
    "us-gaap_InterestReceivable": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "InterestReceivable",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails": {
       "parentTag": "us-gaap_AssetsFairValueDisclosure",
       "weight": 1.0,
       "order": 1.0
      },
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "us-gaap_Assets",
       "weight": 1.0,
       "order": 3.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Accrued interest receivable",
        "verboseLabel": "Accrued interest receivable",
        "label": "Interest Receivable",
        "documentation": "Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable."
       }
      }
     },
     "auth_ref": [
      "r990",
      "r1161"
     ]
    },
    "us-gaap_InternalCreditAssessmentAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "InternalCreditAssessmentAxis",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Internal Credit Assessment [Axis]",
        "label": "Internal Credit Assessment [Axis]",
        "documentation": "Information by entity-defined rating."
       }
      }
     },
     "auth_ref": [
      "r151",
      "r152",
      "r153",
      "r557",
      "r836",
      "r837",
      "r1060"
     ]
    },
    "us-gaap_InternalCreditAssessmentDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "InternalCreditAssessmentDomain",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Internal Credit Assessment [Domain]",
        "label": "Internal Credit Assessment [Domain]",
        "documentation": "Entity defined credit risk rating."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_InvestmentInFederalHomeLoanBankStockFairValueDisclosure": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "InvestmentInFederalHomeLoanBankStockFairValueDisclosure",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails": {
       "parentTag": "us-gaap_AssetsFairValueDisclosure",
       "weight": 1.0,
       "order": 5.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "FHLB stock",
        "label": "Investment in Federal Home Loan Bank Stock, Fair Value Disclosure",
        "documentation": "Fair value portion of investments in Federal Home Loan Bank (FHLBank) stock."
       }
      }
     },
     "auth_ref": [
      "r1108"
     ]
    },
    "us-gaap_InvestmentTypeAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "InvestmentTypeAxis",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesCreditQualityofHeldToMaturitySecuritiesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Investment Type [Axis]",
        "label": "Investment Type [Axis]",
        "documentation": "Information by type of investments."
       }
      }
     },
     "auth_ref": [
      "r724",
      "r726",
      "r727",
      "r729",
      "r732",
      "r784",
      "r786",
      "r788",
      "r791",
      "r792",
      "r808",
      "r812",
      "r813",
      "r814",
      "r815",
      "r816",
      "r879"
     ]
    },
    "us-gaap_InvestmentTypeCategorizationMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "InvestmentTypeCategorizationMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesCreditQualityofHeldToMaturitySecuritiesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Investments [Domain]",
        "label": "Investments [Domain]",
        "documentation": "Asset obtained to generate income or appreciate in value."
       }
      }
     },
     "auth_ref": [
      "r724",
      "r726",
      "r727",
      "r729",
      "r732",
      "r784",
      "r786",
      "r788",
      "r791",
      "r792",
      "r808",
      "r812",
      "r813",
      "r814",
      "r815",
      "r816",
      "r879"
     ]
    },
    "us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "InvestmentsDebtAndEquitySecuritiesAbstract",
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Investments, Debt and Equity Securities [Abstract]",
        "label": "Investments, Debt and Equity Securities [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecurities"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Marketable Securities",
        "label": "Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]",
        "documentation": "The entire disclosure for investments in certain debt and equity securities."
       }
      }
     },
     "auth_ref": [
      "r142",
      "r183",
      "r285",
      "r287",
      "r604",
      "r605",
      "r1139"
     ]
    },
    "us-gaap_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails": {
       "parentTag": "us-gaap_LiabilitiesFairValueDisclosure",
       "weight": 1.0,
       "order": 4.0
      },
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0,
       "order": 5.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsCapitalDebtSecuritiesDetails",
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Junior subordinated debentures",
        "verboseLabel": "Junior subordinated debentures",
        "label": "Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust",
        "documentation": "Including the current and noncurrent portions, the carrying value of junior subordinated long-term debt owed to unconsolidated subsidiary trusts as of the balance sheet date. Such debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets and was initially scheduled to be repaid after one year or beyond the normal operating cycle if longer."
       }
      }
     },
     "auth_ref": [
      "r123",
      "r1148"
     ]
    },
    "nwbi_LNBStatutoryTrustIIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "LNBStatutoryTrustIIMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsCapitalDebtSecuritiesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "LNB Trust II",
        "label": "L N B Statutory Trust I I [Member]",
        "documentation": "Represents information pertaining to LNB Statutory Trust II, a Connecticut statutory trust."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_LaborAndRelatedExpense": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "LaborAndRelatedExpense",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_NoninterestExpense",
       "weight": 1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Compensation and employee benefits",
        "label": "Labor and Related Expense",
        "documentation": "Amount of expense for salary, wage, profit sharing; incentive and equity-based compensation; and other employee benefit."
       }
      }
     },
     "auth_ref": [
      "r995"
     ]
    },
    "dei_LegalEntityAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2024",
     "localname": "LegalEntityAxis",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsCapitalDebtSecuritiesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Legal Entity [Axis]",
        "label": "Legal Entity [Axis]",
        "documentation": "The set of legal entities associated with a report."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_LegalMattersAndContingenciesTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "LegalMattersAndContingenciesTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LegalProceedings"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Legal Proceedings",
        "label": "Legal Matters and Contingencies [Text Block]",
        "documentation": "The entire disclosure for legal proceedings, legal contingencies, litigation, regulatory and environmental matters and other contingencies."
       }
      }
     },
     "auth_ref": [
      "r102"
     ]
    },
    "us-gaap_Liabilities": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "Liabilities",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity",
       "weight": 1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Total liabilities",
        "label": "Liabilities",
        "documentation": "Amount of liability recognized for present obligation requiring transfer or otherwise providing economic benefit to others."
       }
      }
     },
     "auth_ref": [
      "r23",
      "r65",
      "r66",
      "r67",
      "r70",
      "r71",
      "r72",
      "r73",
      "r229",
      "r320",
      "r390",
      "r391",
      "r392",
      "r393",
      "r394",
      "r395",
      "r396",
      "r397",
      "r398",
      "r551",
      "r553",
      "r554",
      "r610",
      "r741",
      "r827",
      "r889",
      "r1093",
      "r1130",
      "r1131"
     ]
    },
    "us-gaap_LiabilitiesAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "LiabilitiesAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Liabilities:",
        "label": "Liabilities [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_LiabilitiesAndStockholdersEquity": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "LiabilitiesAndStockholdersEquity",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": null,
       "weight": null,
       "order": null,
       "root": true
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Total liabilities and shareholders\u2019 equity",
        "label": "Liabilities and Equity",
        "documentation": "Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any."
       }
      }
     },
     "auth_ref": [
      "r81",
      "r124",
      "r691",
      "r873",
      "r1003",
      "r1056",
      "r1124"
     ]
    },
    "us-gaap_LiabilitiesAndStockholdersEquityAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "LiabilitiesAndStockholdersEquityAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Liabilities and shareholders\u2019 equity",
        "label": "Liabilities and Equity [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_LiabilitiesFairValueDisclosure": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "LiabilitiesFairValueDisclosure",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails": {
       "parentTag": null,
       "weight": null,
       "order": null,
       "root": true
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Total financial liabilities",
        "label": "Liabilities, Fair Value Disclosure",
        "documentation": "Fair value of financial and nonfinancial obligations."
       }
      }
     },
     "auth_ref": [
      "r583",
      "r1108"
     ]
    },
    "us-gaap_LineOfCredit": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "LineOfCredit",
     "crdr": "credit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Revolving line of credit",
        "label": "Long-Term Line of Credit",
        "documentation": "The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement."
       }
      }
     },
     "auth_ref": [
      "r23",
      "r123",
      "r1148"
     ]
    },
    "us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "LineOfCreditFacilityMaximumBorrowingCapacity",
     "crdr": "credit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Maximum borrowing capacity",
        "label": "Line of Credit Facility, Maximum Borrowing Capacity",
        "documentation": "Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility."
       }
      }
     },
     "auth_ref": [
      "r64",
      "r69"
     ]
    },
    "us-gaap_LineOfCreditMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "LineOfCreditMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Revolving line of credit, FHLB of Pittsburgh",
        "label": "Line of Credit [Member]",
        "documentation": "A contractual arrangement with a lender under which borrowings can be made up to a specific amount at any point in time, and under which borrowings outstanding may be either short-term or long-term, depending upon the particulars."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_LoanRestructuringModificationAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "LoanRestructuringModificationAxis",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableAmortizedCostBasisofLoansModifiedDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoansModifiedwithPaymentDefaultDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Loan Restructuring Modification [Axis]",
        "label": "Loan Restructuring Modification [Axis]",
        "documentation": "Information by concessions made to the terms of loan contracts."
       }
      }
     },
     "auth_ref": [
      "r281",
      "r282",
      "r284",
      "r831"
     ]
    },
    "us-gaap_LoanRestructuringModificationDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "LoanRestructuringModificationDomain",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableAmortizedCostBasisofLoansModifiedDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoansModifiedwithPaymentDefaultDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Loan Restructuring Modification [Domain]",
        "label": "Loan Restructuring Modification [Domain]",
        "documentation": "Concessions made to the terms of loan contracts, including but not limited to, interest rate reductions, maturity extensions, principal forgiveness, and payment deferral."
       }
      }
     },
     "auth_ref": [
      "r281",
      "r282",
      "r284",
      "r831"
     ]
    },
    "us-gaap_LoansAndLeasesReceivableImpairedCommitmentToLend": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "LoansAndLeasesReceivableImpairedCommitmentToLend",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableAmortizedCostBasisofLoansModifiedDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Committed to lend additional amounts",
        "label": "Financing Receivable, Modified, Commitment to Lend",
        "documentation": "Amount of commitment to lend additional funds to debtor experiencing financial difficulty for which creditor has modified terms of financing receivable."
       }
      }
     },
     "auth_ref": [
      "r159",
      "r280"
     ]
    },
    "us-gaap_LoansHeldForSaleFairValueDisclosure": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "LoansHeldForSaleFairValueDisclosure",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails": {
       "parentTag": "us-gaap_AssetsFairValueDisclosure",
       "weight": 1.0,
       "order": 8.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Loans held-for-sale",
        "label": "Loan, Held-for-Sale, Fair Value Disclosure",
        "documentation": "Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables."
       }
      }
     },
     "auth_ref": [
      "r582",
      "r583",
      "r1110",
      "r1111",
      "r1112"
     ]
    },
    "us-gaap_LoansHeldForSaleMeasurementInput": {
     "xbrltype": "decimalItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "LoansHeldForSaleMeasurementInput",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Loans held for sale, measurement input",
        "label": "Loan, Held-for-Sale, Measurement Input",
        "documentation": "Value of input used to measure loan, held for sale."
       }
      }
     },
     "auth_ref": [
      "r584",
      "r585",
      "r586"
     ]
    },
    "us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "LoansInsuredOrGuaranteedByGovernmentAuthoritiesAxis",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Loans Insured or Guaranteed by Government Authorities [Axis]",
        "label": "Loans Insured or Guaranteed by Government Authorities [Axis]",
        "documentation": "Information by US and non-US government sponsored enterprise, authority, agency and program guarantees for government insured loans."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "LoansInsuredOrGuaranteedByGovernmentAuthoritiesDomain",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Loans Insured or Guaranteed by Government Authorities [Domain]",
        "label": "Loans Insured or Guaranteed by Government Authorities [Domain]",
        "documentation": "Guarantee by US and non-US government sponsored enterprises, authorities, agencies and programs for government insured loans."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_LoansInsuredOrGuaranteedByNonUsGovernmentAuthoritiesMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "LoansInsuredOrGuaranteedByNonUsGovernmentAuthoritiesMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Non-agency",
        "label": "Loans Insured or Guaranteed by non-US Government Authorities [Member]",
        "documentation": "Guarantee by non-US government authority for government insured loans."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_LoansNotesTradeAndOtherReceivablesDisclosureTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "LoansNotesTradeAndOtherReceivablesDisclosureTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivable"
     ],
     "lang": {
      "en-us": {
       "role": {
        "verboseLabel": "Loans Receivable",
        "label": "Loans, Notes, Trade and Other Receivables Disclosure [Text Block]",
        "documentation": "The entire disclosure for claims held for amounts due to entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses."
       }
      }
     },
     "auth_ref": [
      "r617",
      "r1016"
     ]
    },
    "us-gaap_LoansReceivableFairValueDisclosure": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "LoansReceivableFairValueDisclosure",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails": {
       "parentTag": "us-gaap_AssetsFairValueDisclosure",
       "weight": 1.0,
       "order": 6.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsNonrecurringAssetsthathadFairMarketValuesBelowtheCarryingAmountDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Loans receivable, net",
        "netLabel": "Loans individually assessed",
        "label": "Loans Receivable, Fair Value Disclosure",
        "documentation": "Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts."
       }
      }
     },
     "auth_ref": [
      "r1123"
     ]
    },
    "us-gaap_LoansReceivableHeldForSaleAmount": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "LoansReceivableHeldForSaleAmount",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss",
       "weight": 1.0,
       "order": 3.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited",
      "http://www.northwestsavingsbank.com/role/LoansReceivableOriginatedandAcquiredLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Loans held-for-sale",
        "label": "Financing Receivable, Held-for-Sale",
        "documentation": "Amount, before valuation allowance, of financing receivable classified as held-for-sale."
       }
      }
     },
     "auth_ref": [
      "r817",
      "r1017"
     ]
    },
    "nwbi_LoansReceivableMeasurementInput": {
     "xbrltype": "decimalItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "LoansReceivableMeasurementInput",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Loans individually assessed, measurement input",
        "label": "Loans Receivable, Measurement Input",
        "documentation": "Loans Receivable, Measurement Input"
       }
      }
     },
     "auth_ref": []
    },
    "dei_LocalPhoneNumber": {
     "xbrltype": "normalizedStringItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2024",
     "localname": "LocalPhoneNumber",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/Cover"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Local Phone Number",
        "label": "Local Phone Number",
        "documentation": "Local phone number for entity."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_LossOnSaleOfInvestments": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "LossOnSaleOfInvestments",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0,
       "order": 15.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Loss on sale of investments",
        "label": "Loss on Sale of Investments",
        "documentation": "The difference between the carrying value and the sale price of an investment. A loss would be recognized when the sale price of the investment is less than the carrying value of the investment. This element refers to the Loss included in earnings and not to the cash proceeds of the sale."
       }
      }
     },
     "auth_ref": [
      "r996",
      "r997",
      "r1000",
      "r1141"
     ]
    },
    "nwbi_MFBCStatutoryTrustMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "MFBCStatutoryTrustMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsCapitalDebtSecuritiesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "MFBC Statutory Trust I",
        "label": "MFBC Statutory Trust [Member]",
        "documentation": "MFBC Statutory Trust Member"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_MarketingExpense": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "MarketingExpense",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_NoninterestExpense",
       "weight": 1.0,
       "order": 6.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Marketing expenses",
        "label": "Marketing Expense",
        "documentation": "Expenditures for planning and executing the conception, pricing, promotion, and distribution of ideas, goods, and services. Costs of public relations and corporate promotions are typically considered to be marketing costs."
       }
      }
     },
     "auth_ref": [
      "r89"
     ]
    },
    "srt_MaximumMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/srt/2024",
     "localname": "MaximumMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsNarrativeDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Maximum",
        "label": "Maximum [Member]"
       }
      }
     },
     "auth_ref": [
      "r374",
      "r375",
      "r376",
      "r377",
      "r495",
      "r524",
      "r586",
      "r659",
      "r701",
      "r703",
      "r717",
      "r733",
      "r734",
      "r785",
      "r787",
      "r789",
      "r790",
      "r809",
      "r818",
      "r819",
      "r831",
      "r847",
      "r858",
      "r865",
      "r866",
      "r870",
      "r871",
      "r875",
      "r1095",
      "r1132",
      "r1133",
      "r1134",
      "r1136",
      "r1137",
      "r1138"
     ]
    },
    "ecd_MeasureAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "MeasureAxis",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Measure:",
        "label": "Measure [Axis]"
       }
      }
     },
     "auth_ref": [
      "r938"
     ]
    },
    "ecd_MeasureName": {
     "xbrltype": "normalizedStringItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "MeasureName",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Name",
        "label": "Measure Name"
       }
      }
     },
     "auth_ref": [
      "r938"
     ]
    },
    "nwbi_MeasurementInputAnnualServiceCostMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "MeasurementInputAnnualServiceCostMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Annual service cost",
        "label": "Measurement Input, Annual Service Cost [Member]",
        "documentation": "Measurement Input, Annual Service Cost"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_MeasurementInputCostToSellMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "MeasurementInputCostToSellMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Estimated cost to sell",
        "label": "Measurement Input, Cost to Sell [Member]",
        "documentation": "Measurement input using expense incurred to sell asset."
       }
      }
     },
     "auth_ref": [
      "r1110",
      "r1111",
      "r1112"
     ]
    },
    "us-gaap_MeasurementInputExpectedTermMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "MeasurementInputExpectedTermMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Expected life (months)",
        "label": "Measurement Input, Expected Term [Member]",
        "documentation": "Measurement input using period financial instrument is expected to be outstanding. Excludes maturity date."
       }
      }
     },
     "auth_ref": [
      "r1110",
      "r1111",
      "r1112"
     ]
    },
    "nwbi_MeasurementInputForwardYieldCurveMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "MeasurementInputForwardYieldCurveMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Forward yield curve",
        "label": "Measurement Input, Forward Yield Curve [Member]",
        "documentation": "Measurement Input, Forward Yield Curve"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_MeasurementInputOptionVolatilityMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "MeasurementInputOptionVolatilityMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Option adjusted spread",
        "label": "Measurement Input, Option Volatility [Member]",
        "documentation": "Measurement input using rate at which price of option increases (decreases) for given set of returns."
       }
      }
     },
     "auth_ref": [
      "r1110",
      "r1111",
      "r1112"
     ]
    },
    "us-gaap_MeasurementInputPrepaymentRateMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "MeasurementInputPrepaymentRateMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Prepayment rate",
        "label": "Measurement Input, Prepayment Rate [Member]",
        "documentation": "Measurement input using principal prepayment at other than constant rate as proportion of outstanding loan principal."
       }
      }
     },
     "auth_ref": [
      "r1110",
      "r1111",
      "r1112"
     ]
    },
    "nwbi_MeasurementInputPullThroughRateMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "MeasurementInputPullThroughRateMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Estimated pull-through rate",
        "label": "Measurement Input, Pull-Through Rate [Member]",
        "documentation": "Measurement Input, Pull-Through Rate"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_MeasurementInputTypeAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "MeasurementInputTypeAxis",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Measurement Input Type [Axis]",
        "label": "Measurement Input Type [Axis]",
        "documentation": "Information by type of measurement input used to determine value of asset and liability."
       }
      }
     },
     "auth_ref": [
      "r584",
      "r585",
      "r586",
      "r865"
     ]
    },
    "us-gaap_MeasurementInputTypeDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "MeasurementInputTypeDomain",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Measurement Input Type [Domain]",
        "label": "Measurement Input Type [Domain]",
        "documentation": "Measurement input used to determine value of asset and liability."
       }
      }
     },
     "auth_ref": [
      "r584",
      "r585",
      "r586",
      "r865"
     ]
    },
    "nwbi_MergerAssetDispositionAndRestructuringExpense": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "MergerAssetDispositionAndRestructuringExpense",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_NoninterestExpense",
       "weight": 1.0,
       "order": 11.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Merger, asset disposition and restructuring expense",
        "label": "Merger, Asset Disposition, And Restructuring Expense",
        "documentation": "Merger, Asset Disposition, And Restructuring Expense"
       }
      }
     },
     "auth_ref": []
    },
    "srt_MinimumMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/srt/2024",
     "localname": "MinimumMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsNarrativeDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Minimum",
        "label": "Minimum [Member]"
       }
      }
     },
     "auth_ref": [
      "r374",
      "r375",
      "r376",
      "r377",
      "r495",
      "r524",
      "r586",
      "r659",
      "r701",
      "r703",
      "r717",
      "r733",
      "r734",
      "r785",
      "r787",
      "r789",
      "r790",
      "r809",
      "r818",
      "r819",
      "r831",
      "r847",
      "r858",
      "r865",
      "r866",
      "r870",
      "r875",
      "r1095",
      "r1132",
      "r1133",
      "r1134",
      "r1136",
      "r1137",
      "r1138"
     ]
    },
    "ecd_MnpiDiscTimedForCompValFlag": {
     "xbrltype": "booleanItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "MnpiDiscTimedForCompValFlag",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "MNPI Disclosure Timed for Compensation Value",
        "label": "MNPI Disclosure Timed for Compensation Value [Flag]"
       }
      }
     },
     "auth_ref": [
      "r957"
     ]
    },
    "us-gaap_MortgageBackedSecuritiesAvailableForSaleFairValueDisclosure": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "MortgageBackedSecuritiesAvailableForSaleFairValueDisclosure",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails": {
       "parentTag": "us-gaap_AssetsFairValueDisclosure",
       "weight": 1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Total mortgage-backed securities",
        "label": "Debt Security, Mortgage-Backed, Available-for-Sale, Fair Value Disclosure",
        "documentation": "Fair value of securitized, pay-through debt securities collateralized by real estate mortgage loans classified as available-for-sale."
       }
      }
     },
     "auth_ref": [
      "r582",
      "r583"
     ]
    },
    "us-gaap_MortgageBackedSecuritiesMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "MortgageBackedSecuritiesMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Mortgage-backed securities",
        "label": "Collateralized Mortgage-Backed Securities [Member]",
        "documentation": "Securities collateralized by mortgage loans."
       }
      }
     },
     "auth_ref": [
      "r848",
      "r849",
      "r850",
      "r1027",
      "r1029",
      "r1034",
      "r1039",
      "r1047",
      "r1151"
     ]
    },
    "nwbi_MortgageBackedSecuritiesTableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "MortgageBackedSecuritiesTableTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of contractual maturity of mortgage-backed securities",
        "label": "Mortgage Backed Securities [Table Text Block]",
        "documentation": "Mortgage Backed Securities"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_MortgageBankingIncome": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "MortgageBankingIncome",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_NoninterestIncome",
       "weight": 1.0,
       "order": 4.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Mortgage banking income",
        "label": "Mortgage Banking Income",
        "documentation": "The noninterest income derived from mortgage banking activities (fees and commissions), including fees earned from servicing third-party assets."
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_MortgageBankingIncomeMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "MortgageBankingIncomeMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsGainLossonDerivativeFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Increase in mortgage banking income",
        "label": "Mortgage Banking Income [Member]",
        "documentation": "Mortgage Banking Income [Member]"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_MortgageServicingRightsFairValue": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "MortgageServicingRightsFairValue",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsNonrecurringAssetsthathadFairMarketValuesBelowtheCarryingAmountDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Mortgage servicing rights",
        "label": "Mortgage Servicing Rights, Fair Value",
        "documentation": "Mortgage Servicing Rights, Fair Value"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_MortgageServicingRightsMeasurementInput": {
     "xbrltype": "decimalItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "MortgageServicingRightsMeasurementInput",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Mortgage servicing rights, measurement input",
        "label": "Mortgage Servicing Rights, Measurement Input",
        "documentation": "Mortgage Servicing Rights, Measurement Input"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_MortgagesHeldForSaleFairValueDisclosure": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "MortgagesHeldForSaleFairValueDisclosure",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Loans held for sale",
        "label": "Loan, Mortgage, Held-for-Sale, Fair Value Disclosure",
        "documentation": "Fair value portion of mortgage loans held-for-sale."
       }
      }
     },
     "auth_ref": [
      "r582",
      "r583"
     ]
    },
    "ecd_MtrlTermsOfTrdArrTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "MtrlTermsOfTrdArrTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Material Terms of Trading Arrangement",
        "label": "Material Terms of Trading Arrangement [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r965"
     ]
    },
    "ecd_NamedExecutiveOfficersFnTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "NamedExecutiveOfficersFnTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Named Executive Officers, Footnote",
        "label": "Named Executive Officers, Footnote [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r939"
     ]
    },
    "us-gaap_NetCashProvidedByUsedInFinancingActivities": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "NetCashProvidedByUsedInFinancingActivities",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect",
       "weight": 1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Net cash (used in)/provided by financing activities",
        "label": "Net Cash Provided by (Used in) Financing Activities",
        "documentation": "Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit."
       }
      }
     },
     "auth_ref": [
      "r225"
     ]
    },
    "us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Financing activities:",
        "label": "Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_NetCashProvidedByUsedInInvestingActivities": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "NetCashProvidedByUsedInInvestingActivities",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect",
       "weight": 1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Net cash provided by/(used in) investing activities",
        "label": "Net Cash Provided by (Used in) Investing Activities",
        "documentation": "Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets."
       }
      }
     },
     "auth_ref": [
      "r225"
     ]
    },
    "us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Investing activities:",
        "label": "Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_NetCashProvidedByUsedInOperatingActivities": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "NetCashProvidedByUsedInOperatingActivities",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect",
       "weight": 1.0,
       "order": 3.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Net cash provided by operating activities",
        "label": "Net Cash Provided by (Used in) Operating Activities",
        "documentation": "Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities."
       }
      }
     },
     "auth_ref": [
      "r94",
      "r95",
      "r97"
     ]
    },
    "us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Operating activities:",
        "label": "Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_NetIncomeLoss": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "NetIncomeLoss",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnaudited": {
       "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax",
       "weight": 1.0,
       "order": 1.0
      },
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0,
       "order": 1.0
      },
      "http://www.northwestsavingsbank.com/role/EarningsPerShareComputationofBasicandDilutedEarningsPerShareDetails": {
       "parentTag": "us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic",
       "weight": 1.0,
       "order": 1.0
      },
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": null,
       "weight": null,
       "order": null,
       "root": true
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited",
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITYUnaudited",
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnaudited",
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited",
      "http://www.northwestsavingsbank.com/role/EarningsPerShareComputationofBasicandDilutedEarningsPerShareDetails",
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Net income",
        "netLabel": "Net income",
        "verboseLabel": "Net income - treasury stock method - Basic and Diluted",
        "terseLabel": "Net Income (loss)",
        "label": "Net Income (Loss) Attributable to Parent",
        "documentation": "The portion of profit or loss for the period, net of income taxes, which is attributable to the parent."
       }
      }
     },
     "auth_ref": [
      "r88",
      "r97",
      "r134",
      "r194",
      "r210",
      "r213",
      "r217",
      "r229",
      "r235",
      "r238",
      "r239",
      "r240",
      "r241",
      "r242",
      "r245",
      "r246",
      "r258",
      "r320",
      "r390",
      "r391",
      "r392",
      "r393",
      "r394",
      "r395",
      "r396",
      "r397",
      "r398",
      "r540",
      "r549",
      "r580",
      "r610",
      "r694",
      "r762",
      "r779",
      "r780",
      "r888",
      "r1093"
     ]
    },
    "us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "NetIncomeLossAvailableToCommonStockholdersBasic",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/EarningsPerShareComputationofBasicandDilutedEarningsPerShareDetails": {
       "parentTag": null,
       "weight": null,
       "order": null,
       "root": true
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/EarningsPerShareComputationofBasicandDilutedEarningsPerShareDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Net income available to common shareholders - two class method - Basic and Diluted",
        "label": "Net Income (Loss) Available to Common Stockholders, Basic",
        "documentation": "Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders."
       }
      }
     },
     "auth_ref": [
      "r221",
      "r238",
      "r239",
      "r240",
      "r241",
      "r249",
      "r250",
      "r259",
      "r262",
      "r549"
     ]
    },
    "us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "NetIncomeLossAvailableToCommonStockholdersDiluted",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/EarningsPerShareComputationofBasicandDilutedEarningsPerShareDetails": {
       "parentTag": null,
       "weight": null,
       "order": null,
       "root": true
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/EarningsPerShareComputationofBasicandDilutedEarningsPerShareDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Net income available to common shareholders - two class method - Basic and Diluted",
        "label": "Net Income (Loss) Available to Common Stockholders, Diluted",
        "documentation": "Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities, and addition from assumption of issuance of common shares for dilutive potential common shares; of income (loss) available to common shareholders."
       }
      }
     },
     "auth_ref": [
      "r221",
      "r251",
      "r254",
      "r255",
      "r256",
      "r257",
      "r259",
      "r262"
     ]
    },
    "us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "NewAccountingPronouncementsPolicyPolicyTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BasisofPresentationandInformationalDisclosuresPolicies"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Recently Adopted Accounting Standards",
        "label": "New Accounting Pronouncements, Policy [Policy Text Block]",
        "documentation": "Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact."
       }
      }
     },
     "auth_ref": []
    },
    "ecd_NonGaapMeasureDescriptionTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "NonGaapMeasureDescriptionTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Non-GAAP Measure Description",
        "label": "Non-GAAP Measure Description [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r938"
     ]
    },
    "ecd_NonNeosMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "NonNeosMember",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Non-NEOs",
        "label": "Non-NEOs [Member]"
       }
      }
     },
     "auth_ref": [
      "r902",
      "r912",
      "r922",
      "r946",
      "r954"
     ]
    },
    "ecd_NonPeoNeoAvgCompActuallyPaidAmt": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "NonPeoNeoAvgCompActuallyPaidAmt",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Non-PEO NEO Average Compensation Actually Paid Amount",
        "label": "Non-PEO NEO Average Compensation Actually Paid Amount"
       }
      }
     },
     "auth_ref": [
      "r929"
     ]
    },
    "ecd_NonPeoNeoAvgTotalCompAmt": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "NonPeoNeoAvgTotalCompAmt",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Non-PEO NEO Average Total Compensation Amount",
        "label": "Non-PEO NEO Average Total Compensation Amount"
       }
      }
     },
     "auth_ref": [
      "r928"
     ]
    },
    "ecd_NonPeoNeoMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "NonPeoNeoMember",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Non-PEO NEO",
        "label": "Non-PEO NEO [Member]"
       }
      }
     },
     "auth_ref": [
      "r946"
     ]
    },
    "ecd_NonRule10b51ArrAdoptedFlag": {
     "xbrltype": "booleanItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "NonRule10b51ArrAdoptedFlag",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Non-Rule 10b5-1 Arrangement Adopted",
        "label": "Non-Rule 10b5-1 Arrangement Adopted [Flag]"
       }
      }
     },
     "auth_ref": [
      "r965"
     ]
    },
    "ecd_NonRule10b51ArrTrmntdFlag": {
     "xbrltype": "booleanItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "NonRule10b51ArrTrmntdFlag",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Non-Rule 10b5-1 Arrangement Terminated",
        "label": "Non-Rule 10b5-1 Arrangement Terminated [Flag]"
       }
      }
     },
     "auth_ref": [
      "r965"
     ]
    },
    "us-gaap_NondesignatedMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "NondesignatedMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsScheduleofDerivativeFinancialInstrumentsDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Derivatives Not Designated as Hedging Instruments",
        "label": "Not Designated as Hedging Instrument [Member]",
        "documentation": "Derivative instrument not designated as hedging instrument under Generally Accepted Accounting Principles (GAAP)."
       }
      }
     },
     "auth_ref": [
      "r20"
     ]
    },
    "us-gaap_NoninterestBearingDomesticDepositChecking": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "NoninterestBearingDomesticDepositChecking",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "us-gaap_Deposits",
       "weight": 1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Noninterest-bearing demand deposits",
        "label": "Noninterest-Bearing Domestic Deposit, Checking",
        "documentation": "Amount of noninterest-bearing domestic checking deposit liabilities."
       }
      }
     },
     "auth_ref": [
      "r119"
     ]
    },
    "us-gaap_NoninterestExpense": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "NoninterestExpense",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
       "weight": -1.0,
       "order": 3.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Total noninterest expense",
        "label": "Noninterest Expense",
        "documentation": "Total aggregate amount of all noninterest expense."
       }
      }
     },
     "auth_ref": [
      "r131"
     ]
    },
    "us-gaap_NoninterestExpenseAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "NoninterestExpenseAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Noninterest expense:",
        "label": "Noninterest Expense [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_NoninterestExpenseCollectionOfReceivables": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "NoninterestExpenseCollectionOfReceivables",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_NoninterestExpense",
       "weight": 1.0,
       "order": 4.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Collections expense",
        "label": "Noninterest Expense, Collection Of Receivables",
        "documentation": "Noninterest Expense, Collection Of Receivables"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_NoninterestIncome": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "NoninterestIncome",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
       "weight": 1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Total noninterest (loss)/income",
        "label": "Noninterest Income",
        "documentation": "The total amount of noninterest income which may be derived from: (1) fees and commissions; (2) premiums earned; (3) insurance policy charges; (4) the sale or disposal of assets; and (5) other sources not otherwise specified."
       }
      }
     },
     "auth_ref": [
      "r128"
     ]
    },
    "us-gaap_NoninterestIncomeAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "NoninterestIncomeAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Noninterest income:",
        "label": "Noninterest Income [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_NoninterestIncomeOtherOperatingIncome": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "NoninterestIncomeOtherOperatingIncome",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_NoninterestIncome",
       "weight": 1.0,
       "order": 5.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Other operating income",
        "label": "Noninterest Income, Other Operating Income",
        "documentation": "Amount of revenue earned, classified as other, excluding interest income."
       }
      }
     },
     "auth_ref": [
      "r86",
      "r128"
     ]
    },
    "nwbi_NorthwestBancorpCapitalTrustIIIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "NorthwestBancorpCapitalTrustIIIMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsCapitalDebtSecuritiesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Northwest Bancorp Capital Trust III",
        "label": "Northwest Bancorp Capital Trust I I I [Member]",
        "documentation": "Represents information pertaining to Northwest Bancorp Capital Trust III, a Delaware statutory business trust."
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_NorthwestBancorpStatutoryTrustIVMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "NorthwestBancorpStatutoryTrustIVMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsCapitalDebtSecuritiesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Northwest Bancorp Statutory Trust IV",
        "label": "Northwest Bancorp Statutory Trust I V [Member]",
        "documentation": "Represents information pertaining to Northwest Bancorp Statutory Trust IV, a Connecticut statutory trust."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_NotesPayableToBanksMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "NotesPayableToBanksMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsScheduleofBorrowedFundsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Notes payable to the FHLB of Pittsburgh, due within one year",
        "label": "Notes Payable to Banks [Member]",
        "documentation": "A written promise to pay a note to a bank."
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_NumberOfBankingLocations": {
     "xbrltype": "integerItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "NumberOfBankingLocations",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BasisofPresentationandInformationalDisclosuresDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Number of banking locations",
        "label": "Number of Banking Locations",
        "documentation": "Represents the number of banking locations in which the entity operates."
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_NumberOfBusinessTrustsOwned": {
     "xbrltype": "integerItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "NumberOfBusinessTrustsOwned",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Number of statutory business trusts owned",
        "label": "Number Of Business Trusts Owned",
        "documentation": "Represents the number of business trusts owned by the entity."
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_NumberOfInvestmentPositionsWithUnrealizedLosses": {
     "xbrltype": "integerItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "NumberOfInvestmentPositionsWithUnrealizedLosses",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesFairValueofandGrossUnrealizedLossesonInvestmentSecuritiesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Number of investment positions with unrealized losses",
        "label": "Number Of Investment Positions With Unrealized Losses",
        "documentation": "Disclosure regarding factors used to determine that the impairment of securities which include securities held-to-maturity, trading securities and securities available-for-sale where cost exceeds fair value is not an other than temporary impairment (OTTI). This item contains disclosure of the number of investment positions in the marketable investments determined to be temporarily impaired."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_OccupancyNet": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "OccupancyNet",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_NoninterestExpense",
       "weight": 1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Premises and occupancy costs",
        "label": "Occupancy, Net",
        "documentation": "Amount of net occupancy expense that may include items, such as depreciation of facilities and equipment, lease expenses, property taxes and property and casualty insurance expense."
       }
      }
     },
     "auth_ref": [
      "r90",
      "r129",
      "r168"
     ]
    },
    "us-gaap_OciBeforeReclassificationsNetOfTaxAttributableToParent": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "OciBeforeReclassificationsNetOfTaxAttributableToParent",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/ChangesinAccumulatedOtherComprehensiveIncomeDetails": {
       "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent",
       "weight": 1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/ChangesinAccumulatedOtherComprehensiveIncomeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Other comprehensive (loss)/income before reclassification adjustments",
        "label": "OCI, before Reclassifications, Net of Tax, Attributable to Parent",
        "documentation": "Amount after tax, before reclassification adjustments, of other comprehensive income (loss), attributable to parent."
       }
      }
     },
     "auth_ref": [
      "r22",
      "r25"
     ]
    },
    "nwbi_OffBalanceSheetExposureMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "OffBalanceSheetExposureMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableChangesintheAllowanceforLossesonLoansReceivableDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Off-Balance Sheet Exposure",
        "label": "Off-Balance Sheet Exposure [Member]",
        "documentation": "Off-Balance Sheet Exposure [Member]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract",
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Organization, Consolidation and Presentation of Financial Statements [Abstract]",
        "label": "Organization, Consolidation and Presentation of Financial Statements [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BasisofPresentationandInformationalDisclosures"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Basis of Presentation and Informational Disclosures",
        "label": "Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]",
        "documentation": "The entire disclosure for the general note to the financial statements for the reporting entity which may include, descriptions of the basis of presentation, business description, significant accounting policies, consolidations, reclassifications, new pronouncements not yet adopted and changes in accounting principles."
       }
      }
     },
     "auth_ref": [
      "r98",
      "r99",
      "r100",
      "r109"
     ]
    },
    "nwbi_OriginatedLoanMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "OriginatedLoanMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableOriginatedandAcquiredLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Originated",
        "label": "Originated Loan [Member]",
        "documentation": "Represents information pertaining to originated loans."
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_OriginationsOfLoansReceivableHeldForInvestment": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "OriginationsOfLoansReceivableHeldForInvestment",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": -1.0,
       "order": 4.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedLabel": "Loan originations",
        "label": "Originations of Loans Receivable Held for Investment",
        "documentation": "The cash outflow associated with loans originated and held for investment purposes during the period."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_OtherAssets": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "OtherAssets",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "us-gaap_Assets",
       "weight": 1.0,
       "order": 9.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Other assets",
        "label": "Other Assets",
        "documentation": "Amount of assets classified as other."
       }
      }
     },
     "auth_ref": [
      "r117",
      "r197",
      "r684",
      "r830",
      "r889"
     ]
    },
    "us-gaap_OtherComprehensiveIncomeAvailableForSaleSecuritiesAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "OtherComprehensiveIncomeAvailableForSaleSecuritiesAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Net unrealized holding gains/(losses) on marketable securities:",
        "label": "OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnaudited": {
       "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent",
       "weight": 1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Net unrealized holding gains/(losses) on marketable securities",
        "label": "Other Comprehensive Income (Loss), Available-for-Sale Securities Adjustment, Net of Tax, Portion Attributable to Parent",
        "documentation": "Amount, after tax and reclassification adjustment, of gain (loss) in value of unsold investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), attributable to parent."
       }
      }
     },
     "auth_ref": [
      "r9",
      "r17",
      "r110"
     ]
    },
    "us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParentAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParentAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Defined benefit plan:",
        "label": "Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax and Reclassification Adjustment, Attributable to Parent [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnaudited": {
       "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent",
       "weight": 1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Change in fair value of interest rate swaps, net of tax of ($96), ($508), ($726) and ($508), respectively",
        "label": "Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax, Parent",
        "documentation": "Amount, after tax and reclassification, of gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness, attributable to parent."
       }
      }
     },
     "auth_ref": [
      "r205"
     ]
    },
    "us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnauditedParenthetical",
      "http://www.northwestsavingsbank.com/role/ChangesinAccumulatedOtherComprehensiveIncomeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Unrealized holding losses on interest rate swaps, tax",
        "label": "Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax",
        "documentation": "Amount, before reclassification, of tax expense (benefit) for gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness."
       }
      }
     },
     "auth_ref": [
      "r206"
     ]
    },
    "us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsGainLossonDerivativeFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Decrease in interest expense",
        "label": "Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax",
        "documentation": "Amount, before tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness."
       }
      }
     },
     "auth_ref": [
      "r176",
      "r205",
      "r208"
     ]
    },
    "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnaudited": {
       "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax",
       "weight": 1.0,
       "order": 2.0
      },
      "http://www.northwestsavingsbank.com/role/ChangesinAccumulatedOtherComprehensiveIncomeDetails": {
       "parentTag": null,
       "weight": null,
       "order": null,
       "root": true
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITYUnaudited",
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnaudited",
      "http://www.northwestsavingsbank.com/role/ChangesinAccumulatedOtherComprehensiveIncomeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Other comprehensive income/(loss)",
        "terseLabel": "Other comprehensive income (loss), net of tax",
        "label": "Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent",
        "documentation": "Amount after tax of other comprehensive income (loss) attributable to parent entity."
       }
      }
     },
     "auth_ref": [
      "r9",
      "r17",
      "r110",
      "r211",
      "r214",
      "r242"
     ]
    },
    "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Other comprehensive income/(loss) net of tax:",
        "label": "Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnaudited": {
       "parentTag": "us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent",
       "weight": -1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedTerseLabel": "Reclassification adjustment for losses included in net income, net of tax of ($7,706), ($1,731), ($7,706) and ($1,731), respectively",
        "label": "Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax",
        "documentation": "Amount after tax of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities."
       }
      }
     },
     "auth_ref": [
      "r7",
      "r85",
      "r209",
      "r319"
     ]
    },
    "us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax",
     "crdr": "credit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnauditedParenthetical",
      "http://www.northwestsavingsbank.com/role/ChangesinAccumulatedOtherComprehensiveIncomeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Reclassification adjustment for losses included in net income, tax",
        "verboseLabel": "Reclassification adjustment for gains or losses on securities available-for-sale, tax",
        "label": "Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax",
        "documentation": "Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities."
       }
      }
     },
     "auth_ref": [
      "r5"
     ]
    },
    "us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax",
     "crdr": "credit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/ChangesinAccumulatedOtherComprehensiveIncomeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Reclassification adjustment for gains or losses on defined benefit pension plan, tax",
        "label": "Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, Tax",
        "documentation": "Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan."
       }
      }
     },
     "auth_ref": [
      "r5"
     ]
    },
    "us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnaudited": {
       "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent",
       "weight": 1.0,
       "order": 3.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Actuarial reclassification adjustments for prior period service costs and actuarial gains included in net income, net of tax of $147, $152, $294 and $304, respectively",
        "label": "Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, after Tax",
        "documentation": "Amount, after tax, of reclassification adjustment from accumulated other comprehensive (income) loss for net periodic benefit cost (credit) of defined benefit plan."
       }
      }
     },
     "auth_ref": [
      "r7",
      "r85",
      "r106",
      "r209"
     ]
    },
    "us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnauditedParenthetical"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedTerseLabel": "Actuarial reclassification adjustments for prior period service costs and actuarial gains included in net income, tax",
        "label": "Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, Tax",
        "documentation": "Amount of tax (expense) benefit for reclassification adjustment from accumulated other comprehensive (income) loss of defined benefit plan."
       }
      }
     },
     "auth_ref": [
      "r5",
      "r110"
     ]
    },
    "us-gaap_OtherComprehensiveIncomeLossTaxPortionAttributableToParent1": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "OtherComprehensiveIncomeLossTaxPortionAttributableToParent1",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITYUnauditedParenthetical"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedLabel": "Other comprehensive income (loss), net of tax",
        "label": "Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent",
        "documentation": "Amount of tax expense (benefit) allocated to other comprehensive income (loss) attributable to parent entity."
       }
      }
     },
     "auth_ref": [
      "r9",
      "r17",
      "r110"
     ]
    },
    "us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnaudited": {
       "parentTag": "us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent",
       "weight": 1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "verboseLabel": "Unrealized holding losses, net of tax of $168, $3,771, $1,926 and $463, respectively",
        "label": "OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax",
        "documentation": "Amount, after tax and before adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale."
       }
      }
     },
     "auth_ref": [
      "r202",
      "r205",
      "r319"
     ]
    },
    "us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnauditedParenthetical",
      "http://www.northwestsavingsbank.com/role/ChangesinAccumulatedOtherComprehensiveIncomeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedTerseLabel": "Unrealized holding losses, tax",
        "label": "OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, Tax",
        "documentation": "Amount, before adjustment, of tax expense (benefit) for unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes tax expense (benefit) for unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale."
       }
      }
     },
     "auth_ref": [
      "r5",
      "r203"
     ]
    },
    "us-gaap_OtherIncomeMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "OtherIncomeMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsGainLossonDerivativeFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "(Decrease)/increase in other income",
        "label": "Other Income [Member]",
        "documentation": "Primary financial statement caption encompassing other revenue."
       }
      }
     },
     "auth_ref": [
      "r113"
     ]
    },
    "us-gaap_OtherLiabilities": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "OtherLiabilities",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0,
       "order": 6.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Other liabilities",
        "label": "Other Liabilities",
        "documentation": "Amount of liabilities classified as other."
       }
      }
     },
     "auth_ref": [
      "r122",
      "r686",
      "r737",
      "r738",
      "r889",
      "r1149",
      "r1156"
     ]
    },
    "us-gaap_OtherNoninterestExpense": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "OtherNoninterestExpense",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_NoninterestExpense",
       "weight": 1.0,
       "order": 10.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Other expenses",
        "label": "Other Noninterest Expense",
        "documentation": "Amount of noninterest expense classified as other."
       }
      }
     },
     "auth_ref": [
      "r131"
     ]
    },
    "ecd_OtherPerfMeasureAmt": {
     "xbrltype": "decimalItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "OtherPerfMeasureAmt",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Other Performance Measure, Amount",
        "label": "Other Performance Measure, Amount"
       }
      }
     },
     "auth_ref": [
      "r938"
     ]
    },
    "us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "OtherPostretirementBenefitPlansDefinedBenefitMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/PensionandOtherPostRetirementBenefitsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Other\u00a0post-retirement\u00a0benefits",
        "label": "Other Postretirement Benefits Plan [Member]",
        "documentation": "Plan designed to provide other postretirement benefits. Includes, but is not limited to, defined benefit and defined contribution plans. Excludes pension benefits."
       }
      }
     },
     "auth_ref": [
      "r424",
      "r426",
      "r427",
      "r428",
      "r429",
      "r430",
      "r431",
      "r432",
      "r433",
      "r434",
      "r435",
      "r436",
      "r437",
      "r438",
      "r439",
      "r440",
      "r441",
      "r442",
      "r443",
      "r444",
      "r445",
      "r446",
      "r447",
      "r448",
      "r450",
      "r451",
      "r452",
      "r453",
      "r454",
      "r455",
      "r457",
      "r458",
      "r459",
      "r460",
      "r461",
      "r462",
      "r463",
      "r464",
      "r465",
      "r466",
      "r467",
      "r468",
      "r469",
      "r470",
      "r471",
      "r473",
      "r476",
      "r479",
      "r480",
      "r481",
      "r482",
      "r483",
      "r484",
      "r485",
      "r486",
      "r487",
      "r488",
      "r489",
      "r492",
      "r493",
      "r494",
      "r850",
      "r851",
      "r852",
      "r853",
      "r854"
     ]
    },
    "us-gaap_OtherRealEstate": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "OtherRealEstate",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsNonrecurringAssetsthathadFairMarketValuesBelowtheCarryingAmountDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Real estate owned, net",
        "label": "Other Real Estate",
        "documentation": "Carrying amount of other real estate not separately disclosed, including, but not limited to, real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. This does not include real estate assets taken in settlement of troubled loans through surrender or foreclosure."
       }
      }
     },
     "auth_ref": [
      "r116",
      "r1110",
      "r1111",
      "r1112"
     ]
    },
    "us-gaap_OtherRealEstateOwnedMeasurementInput": {
     "xbrltype": "decimalItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "OtherRealEstateOwnedMeasurementInput",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Real estate owned, net, measurement input",
        "label": "Other Real Estate Owned, Measurement Input",
        "documentation": "Value of input used to measure real estate owned by financial institution by financial institution which is not directly related to its business."
       }
      }
     },
     "auth_ref": [
      "r1110",
      "r1111",
      "r1112"
     ]
    },
    "ecd_OutstandingAggtErrCompAmt": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "OutstandingAggtErrCompAmt",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Outstanding Aggregate Erroneous Compensation Amount",
        "label": "Outstanding Aggregate Erroneous Compensation Amount"
       }
      }
     },
     "auth_ref": [
      "r900",
      "r910",
      "r920",
      "r952"
     ]
    },
    "ecd_OutstandingRecoveryCompAmt": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "OutstandingRecoveryCompAmt",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Compensation Amount",
        "label": "Outstanding Recovery Compensation Amount"
       }
      }
     },
     "auth_ref": [
      "r903",
      "r913",
      "r923",
      "r955"
     ]
    },
    "ecd_OutstandingRecoveryIndName": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "OutstandingRecoveryIndName",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Name",
        "label": "Outstanding Recovery, Individual Name"
       }
      }
     },
     "auth_ref": [
      "r903",
      "r913",
      "r923",
      "r955"
     ]
    },
    "us-gaap_ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/EarningsPerShareComputationofBasicandDilutedEarningsPerShareDetails": {
       "parentTag": "us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic",
       "weight": -1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/EarningsPerShareComputationofBasicandDilutedEarningsPerShareDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Less: Dividends and undistributed earnings allocated to participating securities",
        "label": "Participating Securities, Distributed and Undistributed Earnings (Loss), Basic",
        "documentation": "Amount of earnings (loss) distributed and earnings (loss) allocated to participating securities for the basic earnings (loss) per share or per unit calculation under the two-class method."
       }
      }
     },
     "auth_ref": [
      "r259",
      "r977"
     ]
    },
    "us-gaap_PassMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "PassMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Pass",
        "label": "Pass [Member]",
        "documentation": "A category of financing receivables not considered to be special mention, substandard, doubtful, and loss receivables."
       }
      }
     },
     "auth_ref": [
      "r151",
      "r152",
      "r153",
      "r1060"
     ]
    },
    "us-gaap_PastDueFinancingReceivablesTableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "PastDueFinancingReceivablesTableTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of loan delinquencies",
        "label": "Financing Receivable, Past Due [Table Text Block]",
        "documentation": "Tabular disclosure of aging analysis for financing receivable."
       }
      }
     },
     "auth_ref": [
      "r156",
      "r157",
      "r838",
      "r1059"
     ]
    },
    "ecd_PayVsPerformanceDisclosureLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "PayVsPerformanceDisclosureLineItems",
     "lang": {
      "en-us": {
       "role": {
        "label": "Pay vs Performance Disclosure [Line Items]"
       }
      }
     },
     "auth_ref": [
      "r927"
     ]
    },
    "us-gaap_PaymentDeferralMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "PaymentDeferralMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableAmortizedCostBasisofLoansModifiedDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Payment delay",
        "label": "Payment Deferral [Member]",
        "documentation": "Loan modification for a temporary postponement of loan payments."
       }
      }
     },
     "auth_ref": [
      "r281",
      "r282",
      "r284"
     ]
    },
    "us-gaap_PaymentsForOriginationAndPurchasesOfLoansHeldForSale": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "PaymentsForOriginationAndPurchasesOfLoansHeldForSale",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0,
       "order": 8.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedLabel": "Origination of loans held-for-sale",
        "label": "Payment for Origination and Purchase, Loan, Held-for-Sale",
        "documentation": "The aggregate amount of cash outflow for loans purchased and created with the intention to resell them in the near future."
       }
      }
     },
     "auth_ref": [
      "r175"
     ]
    },
    "us-gaap_PaymentsForProceedsFromFederalHomeLoanBankStock": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "PaymentsForProceedsFromFederalHomeLoanBankStock",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": -1.0,
       "order": 6.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedTerseLabel": "Net proceeds/(redemptions) of FHLB stock",
        "label": "Payments for (Proceeds from) Federal Home Loan Bank Stock",
        "documentation": "Amount of cash outflow (inflow) from acquisition (sale) of Federal Home Loan Bank (FHLBank) stock."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_PaymentsForProceedsFromProductiveAssets": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "PaymentsForProceedsFromProductiveAssets",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": -1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedLabel": "Purchases of premises and equipment, net",
        "label": "Payments for (Proceeds from) Productive Assets",
        "documentation": "The net cash outflow or inflow from purchases, sales and disposals of property, plant and equipment and other productive assets, including intangibles."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_PaymentsOfDividends": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "PaymentsOfDividends",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": -1.0,
       "order": 4.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedLabel": "Cash dividends paid on common stock",
        "label": "Payments of Dividends",
        "documentation": "Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests."
       }
      }
     },
     "auth_ref": [
      "r93"
     ]
    },
    "us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "PaymentsToAcquireAvailableForSaleSecuritiesDebt",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": -1.0,
       "order": 8.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedLabel": "Purchase of marketable securities available-for-sale",
        "label": "Payments to Acquire Debt Securities, Available-for-Sale",
        "documentation": "Amount of cash outflow to acquire investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale)."
       }
      }
     },
     "auth_ref": [
      "r29",
      "r222",
      "r286"
     ]
    },
    "ecd_PeerGroupIssuersFnTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "PeerGroupIssuersFnTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Peer Group Issuers, Footnote",
        "label": "Peer Group Issuers, Footnote [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r937"
     ]
    },
    "ecd_PeerGroupTotalShareholderRtnAmt": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "PeerGroupTotalShareholderRtnAmt",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Peer Group Total Shareholder Return Amount",
        "label": "Peer Group Total Shareholder Return Amount"
       }
      }
     },
     "auth_ref": [
      "r937"
     ]
    },
    "us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "PensionAndOtherPostretirementBenefitsDisclosureTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/PensionandOtherPostRetirementBenefits"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Pension and Other Post-Retirement Benefits",
        "label": "Retirement Benefits [Text Block]",
        "documentation": "The entire disclosure for retirement benefits."
       }
      }
     },
     "auth_ref": [
      "r423",
      "r447",
      "r449",
      "r455",
      "r472",
      "r474",
      "r475",
      "r476",
      "r477",
      "r478",
      "r490",
      "r491",
      "r492",
      "r850"
     ]
    },
    "us-gaap_PensionPlansDefinedBenefitMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "PensionPlansDefinedBenefitMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/PensionandOtherPostRetirementBenefitsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Pension\u00a0benefits",
        "label": "Pension Plan [Member]",
        "documentation": "Plan designed to provide participant with pension benefits. Includes, but is not limited to, defined benefit and defined contribution plans. Excludes other postretirement benefits."
       }
      }
     },
     "auth_ref": [
      "r424",
      "r426",
      "r427",
      "r428",
      "r429",
      "r430",
      "r431",
      "r432",
      "r433",
      "r434",
      "r435",
      "r436",
      "r437",
      "r438",
      "r439",
      "r440",
      "r441",
      "r442",
      "r443",
      "r444",
      "r445",
      "r446",
      "r447",
      "r448",
      "r450",
      "r451",
      "r452",
      "r453",
      "r454",
      "r455",
      "r456",
      "r457",
      "r458",
      "r459",
      "r460",
      "r461",
      "r462",
      "r463",
      "r464",
      "r465",
      "r466",
      "r467",
      "r468",
      "r469",
      "r470",
      "r471",
      "r473",
      "r476",
      "r479",
      "r480",
      "r481",
      "r482",
      "r483",
      "r484",
      "r485",
      "r486",
      "r487",
      "r488",
      "r489",
      "r492",
      "r493",
      "r496",
      "r850",
      "r851",
      "r855",
      "r856",
      "r857"
     ]
    },
    "ecd_PeoActuallyPaidCompAmt": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "PeoActuallyPaidCompAmt",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "PEO Actually Paid Compensation Amount",
        "label": "PEO Actually Paid Compensation Amount"
       }
      }
     },
     "auth_ref": [
      "r929"
     ]
    },
    "ecd_PeoMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "PeoMember",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "PEO",
        "label": "PEO [Member]"
       }
      }
     },
     "auth_ref": [
      "r946"
     ]
    },
    "ecd_PeoName": {
     "xbrltype": "normalizedStringItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "PeoName",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "PEO Name",
        "label": "PEO Name"
       }
      }
     },
     "auth_ref": [
      "r939"
     ]
    },
    "ecd_PeoTotalCompAmt": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "PeoTotalCompAmt",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "PEO Total Compensation Amount",
        "label": "PEO Total Compensation Amount"
       }
      }
     },
     "auth_ref": [
      "r928"
     ]
    },
    "nwbi_PersonalBankingMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "PersonalBankingMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableAmortizedCostBasisofLoansModifiedDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableChangesintheAllowanceforLossesonLoansReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableCompositionofImpairedLoansbyPortfolioSegmentandClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableFinancingReceivableWeightedAverageModifiedPeriodDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanDelinquenciesDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanPortfoliobyPortfolioSegmentandbyClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoansModifiedwithPaymentDefaultDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableOriginatedandAcquiredLoansDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivablePerformanceofLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Personal Banking",
        "label": "Personal Banking [Member]",
        "documentation": "Represents information pertaining to personal banking."
       }
      }
     },
     "auth_ref": []
    },
    "ecd_PnsnAdjsPrrSvcCstMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "PnsnAdjsPrrSvcCstMember",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Pension Adjustments Prior Service Cost",
        "label": "Pension Adjustments Prior Service Cost [Member]"
       }
      }
     },
     "auth_ref": [
      "r930"
     ]
    },
    "ecd_PnsnAdjsSvcCstMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "PnsnAdjsSvcCstMember",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Pension Adjustments Service Cost",
        "label": "Pension Adjustments Service Cost [Member]"
       }
      }
     },
     "auth_ref": [
      "r974"
     ]
    },
    "ecd_PnsnBnftsAdjFnTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "PnsnBnftsAdjFnTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Pension Benefits Adjustments, Footnote",
        "label": "Pension Benefits Adjustments, Footnote [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r929"
     ]
    },
    "us-gaap_PortionAtFairValueFairValueDisclosureMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "PortionAtFairValueFairValueDisclosureMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Portion at fair value measurement",
        "label": "Portion at Fair Value Measurement [Member]",
        "documentation": "Measured at fair value for financial reporting purposes."
       }
      }
     },
     "auth_ref": [
      "r608"
     ]
    },
    "us-gaap_PreferredStockParOrStatedValuePerShare": {
     "xbrltype": "perShareItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "PreferredStockParOrStatedValuePerShare",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnauditedParenthetical"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Preferred stock, par value (in dollars per share)",
        "label": "Preferred Stock, Par or Stated Value Per Share",
        "documentation": "Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer."
       }
      }
     },
     "auth_ref": [
      "r74",
      "r417"
     ]
    },
    "us-gaap_PreferredStockSharesAuthorized": {
     "xbrltype": "sharesItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "PreferredStockSharesAuthorized",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnauditedParenthetical"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Preferred stock, shares authorized (in shares)",
        "label": "Preferred Stock, Shares Authorized",
        "documentation": "The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws."
       }
      }
     },
     "auth_ref": [
      "r74",
      "r742"
     ]
    },
    "us-gaap_PreferredStockSharesIssued": {
     "xbrltype": "sharesItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "PreferredStockSharesIssued",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnauditedParenthetical"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Preferred stock, shares issued (in shares)",
        "label": "Preferred Stock, Shares Issued",
        "documentation": "Number of shares issued for nonredeemable preferred shares and preferred shares redeemable solely at option of issuer. Includes, but is not limited to, preferred shares issued, repurchased, and held as treasury shares. Excludes preferred shares classified as debt."
       }
      }
     },
     "auth_ref": [
      "r74",
      "r417"
     ]
    },
    "us-gaap_PreferredStockValue": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "PreferredStockValue",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "verboseLabel": "Preferred stock, $0.01 par value: 50,000,000 authorized, no shares issued",
        "label": "Preferred Stock, Value, Issued",
        "documentation": "Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity."
       }
      }
     },
     "auth_ref": [
      "r74",
      "r687",
      "r873"
     ]
    },
    "us-gaap_PriorPeriodReclassificationAdjustmentDescription": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "PriorPeriodReclassificationAdjustmentDescription",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BasisofPresentationandInformationalDisclosuresPolicies"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Reclassifications",
        "label": "Reclassification, Comparability Adjustment [Policy Text Block]",
        "documentation": "Disclosure of accounting policy for reclassification affecting comparability of financial statement. Excludes amendment to accounting standards, other change in accounting principle, and correction of error."
       }
      }
     },
     "auth_ref": [
      "r989"
     ]
    },
    "nwbi_PrivateLabelCreditCardFacilitiesMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "PrivateLabelCreditCardFacilitiesMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/GuaranteesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Private Label Credit Card Facilities",
        "label": "Private Label Credit Card Facilities [Member]",
        "documentation": "Private Label Credit Card Facilities"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_ProceedsFromLifeInsurancePolicies": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ProceedsFromLifeInsurancePolicies",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": 1.0,
       "order": 7.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Proceeds from bank-owned life insurance",
        "label": "Proceeds from Life Insurance Policy",
        "documentation": "Amount of cash inflow for proceeds from settlement of corporate-owned life insurance policy, classified as investing activities. Includes, but is not limited to, bank-owned life insurance policy."
       }
      }
     },
     "auth_ref": [
      "r10",
      "r27"
     ]
    },
    "nwbi_ProceedsFromMaturitiesAndPrincipalReductionsOnLoans": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "ProceedsFromMaturitiesAndPrincipalReductionsOnLoans",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": 1.0,
       "order": 3.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Proceeds from loan maturities and principal reductions",
        "label": "Proceeds From Maturities And Principal Reductions On Loans",
        "documentation": "Proceeds From Maturities And Principal Reductions On Loans"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": 1.0,
       "order": 9.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Proceeds from maturities and principal reductions of marketable securities available-for-sale",
        "label": "Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-Sale",
        "documentation": "Amount of cash inflow from maturity, prepayment and call of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale)."
       }
      }
     },
     "auth_ref": [
      "r222",
      "r223",
      "r1026"
     ]
    },
    "us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": 1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Proceeds from maturities and principal reductions of marketable securities held-to-maturity",
        "label": "Proceeds from Maturities, Prepayments and Calls of Held-to-Maturity Securities",
        "documentation": "The cash inflow associated with the maturity, prepayments and calls (requests for early payments) of debt securities designated as held-to-maturity."
       }
      }
     },
     "auth_ref": [
      "r28",
      "r1026"
     ]
    },
    "us-gaap_ProceedsFromRepaymentsOfShortTermDebt": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ProceedsFromRepaymentsOfShortTermDebt",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": 1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Net decrease in short-term borrowings",
        "label": "Proceeds from (Repayments of) Short-Term Debt",
        "documentation": "The net cash inflow or outflow for borrowing having initial term of repayment within one year or the normal operating cycle, if longer."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ProceedsFromSaleOfAvailableForSaleSecuritiesDebt",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": 1.0,
       "order": 11.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Proceeds from sale of marketable securities available-for-sale",
        "label": "Proceeds from Sale of Debt Securities, Available-for-Sale",
        "documentation": "Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale)."
       }
      }
     },
     "auth_ref": [
      "r28",
      "r222",
      "r286",
      "r318"
     ]
    },
    "us-gaap_ProceedsFromSaleOfForeclosedAssets": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ProceedsFromSaleOfForeclosedAssets",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": 1.0,
       "order": 5.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Proceeds from sale of real estate owned",
        "label": "Proceeds from Sale of Foreclosed Assets",
        "documentation": "The cash inflow from the sale assets received in full or partial satisfaction of a receivable including real and personal property; equity interests in corporations, partnerships, and joint ventures; and beneficial interests in trusts. Foreclosed assets also include loans that are treated as if the underlying collateral had been foreclosed because the institution has taken possession of the collateral, even though legal foreclosure or repossession proceedings have not taken place."
       }
      }
     },
     "auth_ref": [
      "r27"
     ]
    },
    "us-gaap_ProceedsFromSaleOfLoansHeldForSale": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ProceedsFromSaleOfLoansHeldForSale",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0,
       "order": 9.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Proceeds from sale of loans held-for-sale",
        "label": "Proceeds from Sale, Loan, Held-for-Sale",
        "documentation": "The cash inflow resulting from the sale of loans classified as held-for-sale, including proceeds from loans sold through mortgage securitization."
       }
      }
     },
     "auth_ref": [
      "r998",
      "r999"
     ]
    },
    "us-gaap_ProceedsFromSaleOfMortgageServicingRightsMSR": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ProceedsFromSaleOfMortgageServicingRightsMSR",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": 1.0,
       "order": 10.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Proceeds from sale of mortgage servicing rights",
        "label": "Proceeds from Sale of Mortgage Servicing Rights (MSR)",
        "documentation": "The cash inflow from the sale of servicing rights, which contractually entitle the servicer to receive fees and ancillary revenues for performing billing, collection, disbursement and recordkeeping services in connection with a mortgage portfolio. Rights may be obtained via (1) acquisition or assumption of a servicing obligation that does not relate to financial assets of the servicer or its consolidated affiliates; or (2) by originating mortgage loans and then (a) transferring the loans to a Variable Interest Entity (VIE) in a transaction that meets the necessary transfer and classification requirements, or (b) transferring the loans in a transaction that meets the requirements for sale accounting."
       }
      }
     },
     "auth_ref": [
      "r27",
      "r1135"
     ]
    },
    "us-gaap_ProceedsFromStockOptionsExercised": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ProceedsFromStockOptionsExercised",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": 1.0,
       "order": 5.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Proceeds from stock options exercised",
        "label": "Proceeds from Stock Options Exercised",
        "documentation": "Amount of cash inflow from exercise of option under share-based payment arrangement."
       }
      }
     },
     "auth_ref": [
      "r6",
      "r21"
     ]
    },
    "us-gaap_ProfessionalFees": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ProfessionalFees",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_NoninterestExpense",
       "weight": 1.0,
       "order": 7.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Professional services",
        "label": "Professional Fees",
        "documentation": "A fee charged for services from professionals such as doctors, lawyers and accountants. The term is often expanded to include other professions, for example, pharmacists charging to maintain a medicinal profile of a client or customer."
       }
      }
     },
     "auth_ref": [
      "r829",
      "r888",
      "r1157",
      "r1158"
     ]
    },
    "us-gaap_PropertyPlantAndEquipmentNet": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "PropertyPlantAndEquipmentNet",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "us-gaap_Assets",
       "weight": 1.0,
       "order": 5.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Premises and equipment, net",
        "label": "Property, Plant and Equipment, Net",
        "documentation": "Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures."
       }
      }
     },
     "auth_ref": [
      "r13",
      "r621",
      "r682",
      "r692",
      "r873"
     ]
    },
    "us-gaap_ProvisionForLoanLeaseAndOtherLosses": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ProvisionForLoanLeaseAndOtherLosses",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Provision for credit losses",
        "label": "Provision for Loan, Lease, and Other Losses",
        "documentation": "Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value."
       }
      }
     },
     "auth_ref": [
      "r11",
      "r126",
      "r148"
     ]
    },
    "us-gaap_ProvisionForLoanLossesExpensed": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ProvisionForLoanLossesExpensed",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss",
       "weight": -1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Provision for credit losses - loans",
        "label": "Financing Receivable, Credit Loss, Expense (Reversal)",
        "documentation": "Amount of credit loss expense (reversal of expense) for financing receivable."
       }
      }
     },
     "auth_ref": [
      "r333",
      "r668"
     ]
    },
    "us-gaap_ProvisionForOtherCreditLosses": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ProvisionForOtherCreditLosses",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited": {
       "parentTag": "us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss",
       "weight": -1.0,
       "order": 3.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Provision/(benefit) for credit losses - unfunded commitments",
        "label": "Provision for Other Credit Losses",
        "documentation": "Amount of expense related to credit loss from transactions other than loan and lease transactions."
       }
      }
     },
     "auth_ref": [
      "r11",
      "r126"
     ]
    },
    "ecd_PvpTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "PvpTable",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Pay vs Performance Disclosure",
        "label": "Pay vs Performance Disclosure [Table]"
       }
      }
     },
     "auth_ref": [
      "r927"
     ]
    },
    "ecd_PvpTableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "PvpTableTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Pay vs Performance Disclosure, Table",
        "label": "Pay vs Performance [Table Text Block]"
       }
      }
     },
     "auth_ref": [
      "r927"
     ]
    },
    "srt_RangeAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/srt/2024",
     "localname": "RangeAxis",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsNarrativeDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Statistical Measurement [Axis]",
        "label": "Statistical Measurement [Axis]"
       }
      }
     },
     "auth_ref": [
      "r374",
      "r375",
      "r376",
      "r377",
      "r447",
      "r495",
      "r520",
      "r521",
      "r522",
      "r524",
      "r586",
      "r634",
      "r643",
      "r659",
      "r701",
      "r703",
      "r717",
      "r733",
      "r734",
      "r785",
      "r787",
      "r789",
      "r790",
      "r809",
      "r818",
      "r819",
      "r831",
      "r847",
      "r858",
      "r865",
      "r866",
      "r870",
      "r871",
      "r875",
      "r879",
      "r1091",
      "r1095",
      "r1111",
      "r1133",
      "r1134",
      "r1136",
      "r1137",
      "r1138"
     ]
    },
    "srt_RangeMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/srt/2024",
     "localname": "RangeMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsNarrativeDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Statistical Measurement [Domain]",
        "label": "Statistical Measurement [Domain]"
       }
      }
     },
     "auth_ref": [
      "r374",
      "r375",
      "r376",
      "r377",
      "r447",
      "r495",
      "r520",
      "r521",
      "r522",
      "r524",
      "r586",
      "r634",
      "r643",
      "r659",
      "r701",
      "r703",
      "r717",
      "r733",
      "r734",
      "r785",
      "r787",
      "r789",
      "r790",
      "r809",
      "r818",
      "r819",
      "r831",
      "r847",
      "r858",
      "r865",
      "r866",
      "r870",
      "r871",
      "r875",
      "r879",
      "r1091",
      "r1095",
      "r1111",
      "r1133",
      "r1134",
      "r1136",
      "r1137",
      "r1138"
     ]
    },
    "us-gaap_RealEstateAcquiredThroughForeclosure": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "RealEstateAcquiredThroughForeclosure",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "us-gaap_Assets",
       "weight": 1.0,
       "order": 4.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Real estate owned, net",
        "label": "Real Estate Acquired Through Foreclosure",
        "documentation": "Carrying amount as of the balance sheet date of land and buildings obtained through foreclosure proceedings or defeasance in full or partial satisfaction of a debt arrangement."
       }
      }
     },
     "auth_ref": [
      "r279",
      "r1018",
      "r1023"
     ]
    },
    "nwbi_RealEstateCollateralDependentLoansMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "RealEstateCollateralDependentLoansMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCompositionofImpairedLoansbyPortfolioSegmentandClassofFinancingReceivableDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Real estate",
        "label": "Real Estate Collateral-Dependent Loans [Member]",
        "documentation": "Real Estate Collateral-Dependent Loans [Member]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_ReceivableTypeDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ReceivableTypeDomain",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/GuaranteesDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableChangesintheAllowanceforLossesonLoansReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableCompositionofImpairedLoansbyPortfolioSegmentandClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableOriginatedandAcquiredLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Receivable [Domain]",
        "label": "Receivable [Domain]",
        "documentation": "Financing arrangement representing a contractual right to receive money either on demand or on fixed and determinable dates."
       }
      }
     },
     "auth_ref": [
      "r76",
      "r82"
     ]
    },
    "us-gaap_ReceivablesAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ReceivablesAbstract",
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Receivables [Abstract]",
        "label": "Receivables [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/ChangesinAccumulatedOtherComprehensiveIncomeDetails": {
       "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent",
       "weight": -1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/ChangesinAccumulatedOtherComprehensiveIncomeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedLabel": "Amounts reclassified from accumulated other comprehensive income",
        "label": "Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent",
        "documentation": "Amount after tax of reclassification adjustments of other comprehensive income (loss) attributable to parent."
       }
      }
     },
     "auth_ref": [
      "r22",
      "r25"
     ]
    },
    "ecd_RecoveryOfErrCompDisclosureLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "RecoveryOfErrCompDisclosureLineItems",
     "lang": {
      "en-us": {
       "role": {
        "label": "Recovery of Erroneously Awarded Compensation Disclosure [Line Items]"
       }
      }
     },
     "auth_ref": [
      "r895",
      "r905",
      "r915",
      "r947"
     ]
    },
    "nwbi_ResidentialFirstMortgageAndOtherLoansMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "ResidentialFirstMortgageAndOtherLoansMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Residential First Mortgage and Other Loans",
        "label": "Residential First Mortgage And Other Loans [Member]",
        "documentation": "Residential First Mortgage And Other Loans"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_ResidentialMortgageMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ResidentialMortgageMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableAmortizedCostBasisofLoansModifiedDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableChangesintheAllowanceforLossesonLoansReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableCompositionofImpairedLoansbyPortfolioSegmentandClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableFinancingReceivableWeightedAverageModifiedPeriodDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanDelinquenciesDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanPortfoliobyPortfolioSegmentandbyClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoansModifiedwithPaymentDefaultDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableOriginatedandAcquiredLoansDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivablePerformanceofLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "verboseLabel": "Residential mortgage loans",
        "netLabel": "Residential mortgage loans",
        "terseLabel": "Residential mortgage loans",
        "label": "Residential Mortgage [Member]",
        "documentation": "Loan to purchase or refinance residential real estate for example, but not limited to, a home, in which the real estate itself serves as collateral for the loan."
       }
      }
     },
     "auth_ref": [
      "r837"
     ]
    },
    "ecd_RestatementDateAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "RestatementDateAxis",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Restatement Determination Date:",
        "label": "Restatement Determination Date [Axis]"
       }
      }
     },
     "auth_ref": [
      "r896",
      "r906",
      "r916",
      "r948"
     ]
    },
    "ecd_RestatementDeterminationDate": {
     "xbrltype": "dateItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "RestatementDeterminationDate",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Restatement Determination Date",
        "label": "Restatement Determination Date"
       }
      }
     },
     "auth_ref": [
      "r897",
      "r907",
      "r917",
      "r949"
     ]
    },
    "ecd_RestatementDoesNotRequireRecoveryTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "RestatementDoesNotRequireRecoveryTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Restatement does not require Recovery",
        "label": "Restatement Does Not Require Recovery [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r904",
      "r914",
      "r924",
      "r956"
     ]
    },
    "us-gaap_RetainedEarningsAccumulatedDeficit": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "RetainedEarningsAccumulatedDeficit",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0,
       "order": 4.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Retained earnings",
        "label": "Retained Earnings (Accumulated Deficit)",
        "documentation": "Amount of accumulated undistributed earnings (deficit)."
       }
      }
     },
     "auth_ref": [
      "r78",
      "r105",
      "r690",
      "r711",
      "r716",
      "r719",
      "r743",
      "r873"
     ]
    },
    "us-gaap_RetainedEarningsMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "RetainedEarningsMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITYUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Retained earnings",
        "label": "Retained Earnings [Member]",
        "documentation": "Accumulated undistributed earnings (deficit)."
       }
      }
     },
     "auth_ref": [
      "r190",
      "r231",
      "r232",
      "r233",
      "r236",
      "r242",
      "r244",
      "r246",
      "r324",
      "r330",
      "r369",
      "r527",
      "r528",
      "r536",
      "r537",
      "r538",
      "r541",
      "r548",
      "r549",
      "r562",
      "r564",
      "r565",
      "r568",
      "r578",
      "r619",
      "r620",
      "r707",
      "r709",
      "r721",
      "r1159"
     ]
    },
    "us-gaap_RetirementPlanTypeAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "RetirementPlanTypeAxis",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/PensionandOtherPostRetirementBenefitsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Retirement Plan Type [Axis]",
        "label": "Retirement Plan Type [Axis]",
        "documentation": "Information by type of retirement benefit plan. Includes, but is not limited to, retirement benefit arrangement for defined benefit pension and other postretirement plans, retirement benefit arrangement for defined contribution pension and other postretirement plans, and special and contractual termination benefits payable upon retirement."
       }
      }
     },
     "auth_ref": [
      "r424",
      "r426",
      "r427",
      "r428",
      "r429",
      "r430",
      "r431",
      "r432",
      "r433",
      "r434",
      "r435",
      "r436",
      "r437",
      "r438",
      "r439",
      "r440",
      "r441",
      "r442",
      "r443",
      "r444",
      "r445",
      "r446",
      "r447",
      "r448",
      "r450",
      "r451",
      "r452",
      "r453",
      "r454",
      "r455",
      "r456",
      "r457",
      "r458",
      "r459",
      "r460",
      "r461",
      "r462",
      "r463",
      "r464",
      "r465",
      "r466",
      "r467",
      "r468",
      "r469",
      "r470",
      "r471",
      "r473",
      "r476",
      "r479",
      "r480",
      "r481",
      "r482",
      "r483",
      "r484",
      "r485",
      "r486",
      "r487",
      "r488",
      "r489",
      "r492",
      "r493",
      "r494",
      "r496",
      "r850",
      "r851",
      "r852",
      "r853",
      "r854",
      "r855",
      "r856",
      "r857"
     ]
    },
    "us-gaap_RetirementPlanTypeDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "RetirementPlanTypeDomain",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/PensionandOtherPostRetirementBenefitsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Retirement Plan Type [Domain]",
        "label": "Retirement Plan Type [Domain]",
        "documentation": "Type of plan designed to provide participants with retirement benefits. Includes, but is not limited to, retirement benefit arrangement for defined benefit pension and other postretirement plans, retirement benefit arrangement for defined contribution pension and other postretirement plans, and special and contractual termination benefits payable upon retirement."
       }
      }
     },
     "auth_ref": [
      "r424",
      "r426",
      "r427",
      "r428",
      "r429",
      "r430",
      "r431",
      "r432",
      "r433",
      "r434",
      "r435",
      "r436",
      "r437",
      "r438",
      "r439",
      "r440",
      "r441",
      "r442",
      "r443",
      "r444",
      "r445",
      "r446",
      "r447",
      "r448",
      "r450",
      "r451",
      "r452",
      "r453",
      "r454",
      "r455",
      "r456",
      "r457",
      "r458",
      "r459",
      "r460",
      "r461",
      "r462",
      "r463",
      "r464",
      "r465",
      "r466",
      "r467",
      "r468",
      "r469",
      "r470",
      "r471",
      "r473",
      "r476",
      "r479",
      "r480",
      "r481",
      "r482",
      "r483",
      "r484",
      "r485",
      "r486",
      "r487",
      "r488",
      "r489",
      "r492",
      "r493",
      "r494",
      "r496",
      "r850",
      "r851",
      "r852",
      "r853",
      "r854",
      "r855",
      "r856",
      "r857"
     ]
    },
    "ecd_Rule10b51ArrAdoptedFlag": {
     "xbrltype": "booleanItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "Rule10b51ArrAdoptedFlag",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Rule 10b5-1 Arrangement Adopted",
        "label": "Rule 10b5-1 Arrangement Adopted [Flag]"
       }
      }
     },
     "auth_ref": [
      "r965"
     ]
    },
    "ecd_Rule10b51ArrTrmntdFlag": {
     "xbrltype": "booleanItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "Rule10b51ArrTrmntdFlag",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Rule 10b5-1 Arrangement Terminated",
        "label": "Rule 10b5-1 Arrangement Terminated [Flag]"
       }
      }
     },
     "auth_ref": [
      "r965"
     ]
    },
    "nwbi_SaleAndFinancingOfOtherRealEstateOwned": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "SaleAndFinancingOfOtherRealEstateOwned",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Sale of real estate owned financed by the Company",
        "label": "Sale And Financing Of Other Real Estate Owned",
        "documentation": "Sale And Financing Of Other Real Estate Owned"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_SavingsAndDemandDeposits": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "SavingsAndDemandDeposits",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails": {
       "parentTag": "us-gaap_LiabilitiesFairValueDisclosure",
       "weight": 1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Savings and checking deposits",
        "label": "Savings and Demand Deposits",
        "documentation": "The carrying amount of savings and demand deposits as of the balance sheet date."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ScheduleOfAccountsNotesLoansAndFinancingReceivableTable",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanPortfoliobyPortfolioSegmentandbyClassofFinancingReceivableDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableOriginatedandAcquiredLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of Accounts, Notes, Loans and Financing Receivable [Table]",
        "label": "Accounts and Financing Receivables [Table]",
        "documentation": "Disclosure of information about accounts and financing receivables. Includes, but is not limited to, amount of receivable and allowance for credit loss."
       }
      }
     },
     "auth_ref": [
      "r76",
      "r82",
      "r278",
      "r1023"
     ]
    },
    "us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of loans receivable",
        "label": "Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]",
        "documentation": "Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables."
       }
      }
     },
     "auth_ref": [
      "r76",
      "r82"
     ]
    },
    "us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/ChangesinAccumulatedOtherComprehensiveIncomeTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of changes in accumulated other comprehensive income by component",
        "label": "Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]",
        "documentation": "Tabular disclosure of the components of accumulated other comprehensive income (loss)."
       }
      }
     },
     "auth_ref": [
      "r25",
      "r1125",
      "r1126"
     ]
    },
    "nwbi_ScheduleOfAmortizationExpenseTableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "ScheduleOfAmortizationExpenseTableTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/GoodwillandOtherIntangibleAssetsTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of the actual aggregate amortization expense as well as estimated aggregate amortization expense, based upon current levels of intangible assets",
        "label": "Schedule of Amortization Expense [Table Text Block]",
        "documentation": "Tabular disclosure of the amount of amortization expense and estimated amortization expense for intangible assets."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ScheduleOfAvailableForSaleSecuritiesLineItems",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableforsalebyContractualMaturityDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesFairValueofandGrossUnrealizedLossesonInvestmentSecuritiesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Marketable securities available-for-sale",
        "label": "Debt Securities, Available-for-Sale [Line Items]",
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table."
       }
      }
     },
     "auth_ref": [
      "r288",
      "r289",
      "r290",
      "r291",
      "r292",
      "r293",
      "r294",
      "r295",
      "r296",
      "r297",
      "r298",
      "r299"
     ]
    },
    "us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of the portfolio of investment securities available-for-sale",
        "label": "Schedule of Available-for-Sale Securities Reconciliation [Table Text Block]",
        "documentation": "Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value."
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_ScheduleOfCapitalDebtSecuritiesAndJuniorSubordinatedDeferrableInterestDebenturesTableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "ScheduleOfCapitalDebtSecuritiesAndJuniorSubordinatedDeferrableInterestDebenturesTableTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of capital debt securities and junior subordinated deferrable interest debentures",
        "label": "Schedule of Capital Debt Securities and Junior Subordinated Deferrable Interest Debentures [Table Text Block]",
        "documentation": "Schedule of Capital Debt Securities and Junior Subordinated Deferrable Interest Debentures"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_ScheduleOfDebtTableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ScheduleOfDebtTableTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of borrowed funds",
        "label": "Schedule of Debt [Table Text Block]",
        "documentation": "Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ScheduleOfDefinedBenefitPlansDisclosuresTable",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/PensionandOtherPostRetirementBenefitsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of Defined Benefit Plans Disclosures [Table]",
        "label": "Defined Benefit Plan [Table]",
        "documentation": "Disclosure of information about individual defined benefit pension plan or other postretirement defined benefit plan. It may be appropriate to group certain similar plans. Also includes schedule for fair value of plan assets by major categories of plan assets by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets or liabilities (Level 1), Significant other observable inputs (Level 2), and significant unobservable inputs (Level 3)."
       }
      }
     },
     "auth_ref": [
      "r15",
      "r38",
      "r39",
      "r40",
      "r41"
     ]
    },
    "us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of gain (loss) on derivative instruments",
        "label": "Derivative Instruments, Gain (Loss) [Table Text Block]",
        "documentation": "Tabular disclosure of the location and amount of derivative instruments and nonderivative instruments designated as hedging instruments reported before netting adjustments, and the amount of gain (loss) on derivative instruments and nonderivative instruments designated and qualified as hedging instruments."
       }
      }
     },
     "auth_ref": [
      "r49",
      "r51",
      "r556"
     ]
    },
    "us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/EarningsPerShareTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of computation of basic and diluted earnings per share",
        "label": "Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]",
        "documentation": "Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations."
       }
      }
     },
     "auth_ref": [
      "r1010"
     ]
    },
    "us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ScheduleOfEarningsPerShareDilutedByCommonClassTable",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/EarningsPerShareComputationofBasicandDilutedEarningsPerShareDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Earnings Per Share, Diluted, by Common Class, Including Two-Class Method [Table]",
        "label": "Earnings Per Share, Diluted, by Common Class, Including Two-Class Method [Table]",
        "documentation": "Disclosure of information about diluted earnings per share by class of stock. Includes, but is not limited to, two-class method."
       }
      }
     },
     "auth_ref": [
      "r33",
      "r34",
      "r252",
      "r253",
      "r260"
     ]
    },
    "us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of assets and liabilities measured at fair value on a recurring basis",
        "label": "Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]",
        "documentation": "Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3)."
       }
      }
     },
     "auth_ref": [
      "r1108",
      "r1109"
     ]
    },
    "us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ScheduleOfFinancingReceivableAllowanceForCreditLossesTable",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableChangesintheAllowanceforLossesonLoansReceivableDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Financing Receivable, Allowance for Credit Loss [Table]",
        "label": "Financing Receivable, Allowance for Credit Loss [Table]",
        "documentation": "Disclosure of information about allowance for credit loss on financing receivable."
       }
      }
     },
     "auth_ref": [
      "r187",
      "r1058"
     ]
    },
    "us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Financing Receivable, Credit Quality Indicator [Table]",
        "label": "Financing Receivable, Credit Quality Indicator [Table]",
        "documentation": "Disclosure of information about credit quality indicator for financing receivable."
       }
      }
     },
     "auth_ref": [
      "r152",
      "r837",
      "r1060"
     ]
    },
    "us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableAmortizedCostBasisofLoansModifiedDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivableFinancingReceivableWeightedAverageModifiedPeriodDetails",
      "http://www.northwestsavingsbank.com/role/LoansReceivablePerformanceofLoansDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Financing Receivable, Troubled Debt Restructuring [Table]",
        "label": "Financing Receivable, Modified [Table]",
        "documentation": "Disclosure of information about financing receivable modified for debtor experiencing financial difficulty."
       }
      }
     },
     "auth_ref": [
      "r154",
      "r155",
      "r281",
      "r282",
      "r831"
     ]
    },
    "us-gaap_ScheduleOfFinancingReceivablesNonAccrualStatusTableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ScheduleOfFinancingReceivablesNonAccrualStatusTableTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of the composition of nonaccrual loans by portfolio segment and by class of financing receivable",
        "label": "Financing Receivable, Nonaccrual [Table Text Block]",
        "documentation": "Tabular disclosure of financing receivable on nonaccrual status."
       }
      }
     },
     "auth_ref": [
      "r156",
      "r337"
     ]
    },
    "us-gaap_ScheduleOfFinancingReceivablesPastDueTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ScheduleOfFinancingReceivablesPastDueTable",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableLoanDelinquenciesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Financing Receivable, Past Due [Table]",
        "label": "Financing Receivable, Past Due [Table]",
        "documentation": "Disclosure of information about aging analysis for financing receivable."
       }
      }
     },
     "auth_ref": [
      "r838",
      "r1059"
     ]
    },
    "us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ScheduleOfFiniteLivedIntangibleAssetsTable",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/GoodwillandOtherIntangibleAssetsIntangibleAssetsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of Finite-Lived Intangible Assets [Table]",
        "label": "Intangible Asset, Finite-Lived [Table]",
        "documentation": "Disclosure of information about finite-lived intangible asset. Excludes indefinite-lived intangible asset."
       }
      }
     },
     "auth_ref": [
      "r356",
      "r362",
      "r365",
      "r366",
      "r367",
      "r661",
      "r820",
      "r841"
     ]
    },
    "us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/GoodwillandOtherIntangibleAssetsTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of intangible assets subject to amortization",
        "label": "Schedule of Finite-Lived Intangible Assets [Table Text Block]",
        "documentation": "Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment."
       }
      }
     },
     "auth_ref": [
      "r841",
      "r1080"
     ]
    },
    "us-gaap_ScheduleOfGoodwillTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ScheduleOfGoodwillTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/GoodwillandOtherIntangibleAssetsTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of the changes in carrying amount of goodwill",
        "label": "Schedule of Goodwill [Table Text Block]",
        "documentation": "Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule."
       }
      }
     },
     "auth_ref": [
      "r840",
      "r1063",
      "r1064",
      "r1065",
      "r1066",
      "r1067",
      "r1068",
      "r1069",
      "r1070",
      "r1071",
      "r1072",
      "r1073"
     ]
    },
    "us-gaap_ScheduleOfGuaranteeObligationsTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ScheduleOfGuaranteeObligationsTable",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/GuaranteesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of Guarantor Obligations [Table]",
        "label": "Guarantor Obligation [Table]",
        "documentation": "Disclosure of information about guarantor obligation by guarantee or group of guarantees. Includes, but is not limited to, nature, terms, origin, and purpose of guarantee, triggering event, maximum exposure, and amount of obligation. Excludes product warranty."
       }
      }
     },
     "auth_ref": [
      "r379",
      "r384",
      "r386",
      "r389"
     ]
    },
    "us-gaap_ScheduleOfHeldToMaturitySecuritiesLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ScheduleOfHeldToMaturitySecuritiesLineItems",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturitybyContractualMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Marketable securities held to maturity",
        "label": "Schedule of Held-to-Maturity Securities [Line Items]",
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table."
       }
      }
     },
     "auth_ref": [
      "r300",
      "r301",
      "r302",
      "r303",
      "r304",
      "r305",
      "r306",
      "r307",
      "r308",
      "r309",
      "r310",
      "r311",
      "r312",
      "r313",
      "r314",
      "r315",
      "r316",
      "r317"
     ]
    },
    "us-gaap_ScheduleOfHeldToMaturitySecuritiesTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ScheduleOfHeldToMaturitySecuritiesTable",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturitybyContractualMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Debt Securities, Held-to-maturity [Table]",
        "label": "Debt Securities, Held-to-Maturity [Table]",
        "documentation": "Disclosure of information about investment in debt security measured at amortized cost (held-to-maturity)."
       }
      }
     },
     "auth_ref": [
      "r300",
      "r301",
      "r302",
      "r303",
      "r304",
      "r305",
      "r306",
      "r307",
      "r308",
      "r309",
      "r310",
      "r311",
      "r312",
      "r313",
      "r314",
      "r315",
      "r316",
      "r317"
     ]
    },
    "us-gaap_ScheduleOfImpairedFinancingReceivableTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ScheduleOfImpairedFinancingReceivableTable",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCompositionofImpairedLoansbyPortfolioSegmentandClassofFinancingReceivableDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of Impaired Financing Receivable [Table]",
        "label": "Schedule of Impaired Financing Receivable [Table]",
        "documentation": "Schedule of the recorded investment, unpaid principal balance, associated allowance, average recorded investment, accounting policies, and interest income recognized on the accrual and cash basis for impaired financing receivables by class of financing receivable."
       }
      }
     },
     "auth_ref": [
      "r149"
     ]
    },
    "us-gaap_ScheduleOfInterestRateDerivativesTableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ScheduleOfInterestRateDerivativesTableTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of interest rate products designated as hedging instruments",
        "label": "Schedule of Interest Rate Derivatives [Table Text Block]",
        "documentation": "Tabular disclosure of interest rate derivatives, including, but not limited to, the fair value of the derivatives, statement of financial position location, and statement of financial performance location of these instruments."
       }
      }
     },
     "auth_ref": [
      "r51"
     ]
    },
    "nwbi_ScheduleOfLoansByPortfolioSegmentAndClassOfFinancingReceivableTableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "ScheduleOfLoansByPortfolioSegmentAndClassOfFinancingReceivableTableTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "verboseLabel": "Schedule of loan portfolio by portfolio segment and by class of financing receivable",
        "label": "Schedule of Loans by Portfolio Segment and Class of Financing Receivable [Table Text Block]",
        "documentation": "Tabular disclosure of information related to loans by portfolio segment and by class of financing receivable."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_ScheduleOfNetBenefitCostsTableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ScheduleOfNetBenefitCostsTableTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/PensionandOtherPostRetirementBenefitsTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of net periodic costs for the defined benefit pension plans and the post retirement healthcare plans",
        "label": "Schedule of Net Benefit Costs [Table Text Block]",
        "documentation": "Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments."
       }
      }
     },
     "auth_ref": [
      "r107"
     ]
    },
    "us-gaap_ScheduleOfOtherDerivativesNotDesignatedAsHedgingInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ScheduleOfOtherDerivativesNotDesignatedAsHedgingInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "verboseLabel": "Schedule of derivative instruments",
        "label": "Derivatives Not Designated as Hedging Instruments [Table Text Block]",
        "documentation": "Tabular disclosure of derivative instrument not designated or qualifying as hedging instrument."
       }
      }
     },
     "auth_ref": [
      "r52",
      "r978"
     ]
    },
    "us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsCapitalDebtSecuritiesDetails",
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Axis]",
        "label": "Schedule of Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Axis]",
        "documentation": "Information by financial instrument subject to mandatory redemption."
       }
      }
     },
     "auth_ref": [
      "r14",
      "r18",
      "r35"
     ]
    },
    "nwbi_SecuritiesReceivedUnderAgreementsToRepurchaseMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "SecuritiesReceivedUnderAgreementsToRepurchaseMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails",
      "http://www.northwestsavingsbank.com/role/BorrowedFundsScheduleofBorrowedFundsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Collateral received, due within one year",
        "label": "Securities Received Under Agreements To Repurchase [Member]",
        "documentation": "Securities Received Under Agreements To Repurchase"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "SecuritiesSoldUnderAgreementsToRepurchaseMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails",
      "http://www.northwestsavingsbank.com/role/BorrowedFundsScheduleofBorrowedFundsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Collateralized borrowings, due within one year",
        "label": "Securities Sold under Agreements to Repurchase [Member]",
        "documentation": "The securities that an institution sells and agrees to repurchase (the identical or substantially the same securities) as a seller-borrower at a specified date for a specified price, also known as a repurchase agreement, or repo. Most repos involve obligations of the federal government or its agencies, but other financial instruments, such as commercial paper, banker's acceptances, and negotiable certificates of deposit, are sometimes used in repos."
       }
      }
     },
     "auth_ref": [
      "r114"
     ]
    },
    "dei_Security12bTitle": {
     "xbrltype": "securityTitleItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2024",
     "localname": "Security12bTitle",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/Cover"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Title of 12(b) Security",
        "label": "Title of 12(b) Security",
        "documentation": "Title of a 12(b) registered security."
       }
      }
     },
     "auth_ref": [
      "r890"
     ]
    },
    "dei_SecurityExchangeName": {
     "xbrltype": "edgarExchangeCodeItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2024",
     "localname": "SecurityExchangeName",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/Cover"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Security Exchange Name",
        "label": "Security Exchange Name",
        "documentation": "Name of the Exchange on which a security is registered."
       }
      }
     },
     "auth_ref": [
      "r892"
     ]
    },
    "us-gaap_ShareBasedCompensation": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ShareBasedCompensation",
     "crdr": "debit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited": {
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0,
       "order": 10.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "verboseLabel": "Noncash compensation expense related to stock benefit plans",
        "label": "Share-Based Payment Arrangement, Noncash Expense",
        "documentation": "Amount of noncash expense for share-based payment arrangement."
       }
      }
     },
     "auth_ref": [
      "r11"
     ]
    },
    "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "All Award Types",
        "label": "Award Type [Domain]",
        "documentation": "Award under share-based payment arrangement."
       }
      }
     },
     "auth_ref": [
      "r498",
      "r499",
      "r500",
      "r501",
      "r502",
      "r503",
      "r504",
      "r505",
      "r506",
      "r507",
      "r508",
      "r509",
      "r510",
      "r511",
      "r512",
      "r513",
      "r514",
      "r515",
      "r516",
      "r517",
      "r518",
      "r519",
      "r520",
      "r521",
      "r522",
      "r523"
     ]
    },
    "us-gaap_SharesSubjectToMandatoryRedemptionFinancialInstrumentDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "SharesSubjectToMandatoryRedemptionFinancialInstrumentDomain",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsCapitalDebtSecuritiesDetails",
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Financial Instruments Subject to Mandatory Redemption, Financial Instrument [Domain]",
        "label": "Financial Instruments Subject to Mandatory Redemption, Financial Instrument [Domain]",
        "documentation": "Identifying description of each financial instrument that embodies an unconditional obligation requiring the issuer to redeem the securities by transferring the assets at a specified or determinable date (or dates) or upon an event that is certain to occur. Examples are preferred stock or trust preferred securities, each of which has redemption rights beyond the control of the issuer on a specified date or upon an event that is certain to occur."
       }
      }
     },
     "auth_ref": [
      "r14",
      "r18"
     ]
    },
    "us-gaap_ShortTermBorrowings": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ShortTermBorrowings",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0,
       "order": 3.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails",
      "http://www.northwestsavingsbank.com/role/BorrowedFundsScheduleofBorrowedFundsDetails",
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Borrowed funds",
        "label": "Short-Term Debt",
        "documentation": "Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer."
       }
      }
     },
     "auth_ref": [
      "r63",
      "r120",
      "r873",
      "r1147"
     ]
    },
    "us-gaap_ShortTermDebtTypeAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ShortTermDebtTypeAxis",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails",
      "http://www.northwestsavingsbank.com/role/BorrowedFundsScheduleofBorrowedFundsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Short-term Debt, Type [Axis]",
        "label": "Short-Term Debt, Type [Axis]",
        "documentation": "Information by type of short-term debt arrangement."
       }
      }
     },
     "auth_ref": [
      "r65",
      "r1088",
      "r1089",
      "r1090"
     ]
    },
    "us-gaap_ShortTermDebtTypeDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ShortTermDebtTypeDomain",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails",
      "http://www.northwestsavingsbank.com/role/BorrowedFundsScheduleofBorrowedFundsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Short-term Debt, Type [Domain]",
        "label": "Short-Term Debt, Type [Domain]",
        "documentation": "Type of short-term debt arrangement, such as notes, line of credit, commercial paper, asset-based financing, project financing, letter of credit financing."
       }
      }
     },
     "auth_ref": [
      "r63",
      "r1088",
      "r1089",
      "r1090"
     ]
    },
    "nwbi_SpecialMentionAndSubstandardMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "SpecialMentionAndSubstandardMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Special mention and substandard",
        "label": "Special Mention And Substandard [Member]",
        "documentation": "Represents information pertaining to special mention or substandard financing receivables."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_SpecialMentionMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "SpecialMentionMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Special mention",
        "label": "Special Mention [Member]",
        "documentation": "A category of financing receivables considered to have potential weaknesses that deserve management's close attention. If left uncorrected, those potential weaknesses may result in a deterioration of the repayment prospects for the asset or of the creditor's position at some future date."
       }
      }
     },
     "auth_ref": [
      "r151",
      "r152",
      "r153",
      "r1060"
     ]
    },
    "us-gaap_StandbyLettersOfCreditMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "StandbyLettersOfCreditMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/GuaranteesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Standby Letters of Credit",
        "label": "Standby Letters of Credit [Member]",
        "documentation": "An irrevocable undertaking (typically by a financial institution) to guarantee payment of a specified financial obligation."
       }
      }
     },
     "auth_ref": [
      "r0",
      "r1092",
      "r1152",
      "r1153"
     ]
    },
    "us-gaap_StatementEquityComponentsAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "StatementEquityComponentsAxis",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITYUnaudited",
      "http://www.northwestsavingsbank.com/role/ChangesinAccumulatedOtherComprehensiveIncomeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Equity Components [Axis]",
        "label": "Equity Components [Axis]",
        "documentation": "Information by component of equity."
       }
      }
     },
     "auth_ref": [
      "r19",
      "r75",
      "r79",
      "r80",
      "r190",
      "r215",
      "r216",
      "r217",
      "r231",
      "r232",
      "r233",
      "r236",
      "r242",
      "r244",
      "r246",
      "r269",
      "r324",
      "r330",
      "r369",
      "r419",
      "r527",
      "r528",
      "r536",
      "r537",
      "r538",
      "r541",
      "r548",
      "r549",
      "r562",
      "r563",
      "r564",
      "r565",
      "r566",
      "r568",
      "r578",
      "r611",
      "r612",
      "r613",
      "r614",
      "r615",
      "r616",
      "r619",
      "r620",
      "r627",
      "r695",
      "r707",
      "r708",
      "r709",
      "r721",
      "r781"
     ]
    },
    "us-gaap_StatementLineItems": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "StatementLineItems",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITYUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Statement [Line Items]",
        "label": "Statement [Line Items]",
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table."
       }
      }
     },
     "auth_ref": [
      "r231",
      "r232",
      "r233",
      "r269",
      "r620",
      "r660",
      "r718",
      "r722",
      "r735",
      "r736",
      "r737",
      "r738",
      "r739",
      "r740",
      "r742",
      "r745",
      "r746",
      "r747",
      "r748",
      "r749",
      "r750",
      "r751",
      "r752",
      "r753",
      "r755",
      "r756",
      "r757",
      "r758",
      "r759",
      "r761",
      "r764",
      "r765",
      "r767",
      "r768",
      "r769",
      "r770",
      "r771",
      "r772",
      "r773",
      "r774",
      "r775",
      "r776",
      "r777",
      "r778",
      "r781",
      "r880"
     ]
    },
    "us-gaap_StatementOfCashFlowsAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "StatementOfCashFlowsAbstract",
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Statement of Cash Flows [Abstract]",
        "label": "Statement of Cash Flows [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_StatementOfFinancialPositionAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "StatementOfFinancialPositionAbstract",
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Statement of Financial Position [Abstract]",
        "label": "Statement of Financial Position [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "StatementOfIncomeAndComprehensiveIncomeAbstract",
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Statement of Comprehensive Income [Abstract]",
        "label": "Statement of Comprehensive Income [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_StatementOfStockholdersEquityAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "StatementOfStockholdersEquityAbstract",
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Statement of Stockholders' Equity [Abstract]",
        "label": "Statement of Stockholders' Equity [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_StatementTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "StatementTable",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITYUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Statement [Table]",
        "label": "Statement [Table]",
        "documentation": "Disclosure of information about statement of comprehensive income, income, other comprehensive income, financial position, cash flows, and shareholders' equity."
       }
      }
     },
     "auth_ref": [
      "r231",
      "r232",
      "r233",
      "r269",
      "r277",
      "r620",
      "r660",
      "r718",
      "r722",
      "r735",
      "r736",
      "r737",
      "r738",
      "r739",
      "r740",
      "r742",
      "r745",
      "r746",
      "r747",
      "r748",
      "r749",
      "r750",
      "r751",
      "r752",
      "r753",
      "r755",
      "r756",
      "r757",
      "r758",
      "r759",
      "r761",
      "r764",
      "r765",
      "r767",
      "r768",
      "r769",
      "r770",
      "r771",
      "r772",
      "r773",
      "r774",
      "r775",
      "r776",
      "r777",
      "r778",
      "r781",
      "r880"
     ]
    },
    "ecd_StkPrcOrTsrEstimationMethodTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "StkPrcOrTsrEstimationMethodTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/ErrCompDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Stock Price or TSR Estimation Method",
        "label": "Stock Price or TSR Estimation Method [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r899",
      "r909",
      "r919",
      "r951"
     ]
    },
    "us-gaap_StockAppreciationRightsSARSMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "StockAppreciationRightsSARSMember",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Stock Appreciation Rights (SARs)",
        "label": "Stock Appreciation Rights (SARs) [Member]",
        "documentation": "Right to receive cash or shares equal to appreciation of predetermined number of grantor's shares during predetermined time period."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_StockGrantedDuringPeriodValueSharebasedCompensationForfeited": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "StockGrantedDuringPeriodValueSharebasedCompensationForfeited",
     "crdr": "debit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITYUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedTerseLabel": "Stock-based compensation forfeited",
        "label": "Shares Granted, Value, Share-Based Payment Arrangement, Forfeited",
        "documentation": "Value of forfeited shares granted under share-based payment arrangement. Excludes employee stock ownership plan (ESOP)."
       }
      }
     },
     "auth_ref": [
      "r108"
     ]
    },
    "us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationForfeited": {
     "xbrltype": "sharesItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "StockIssuedDuringPeriodSharesShareBasedCompensationForfeited",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITYUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "negatedLabel": "Stock-based compensation forfeited (in shares)",
        "label": "Shares Issued, Shares, Share-Based Payment Arrangement, Forfeited",
        "documentation": "Number of shares (or other type of equity) forfeited during the period."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationGross": {
     "xbrltype": "sharesItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "StockIssuedDuringPeriodSharesShareBasedCompensationGross",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITYUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Stock-based compensation expense (in shares)",
        "label": "Shares Issued, Shares, Share-Based Payment Arrangement, before Forfeiture",
        "documentation": "Number, before forfeiture, of shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP)."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised": {
     "xbrltype": "sharesItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "StockIssuedDuringPeriodSharesStockOptionsExercised",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITYUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Exercise of stock options (in shares)",
        "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period",
        "documentation": "Number of share options (or share units) exercised during the current period."
       }
      }
     },
     "auth_ref": [
      "r19",
      "r74",
      "r75",
      "r105",
      "r506"
     ]
    },
    "us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "StockIssuedDuringPeriodValueStockOptionsExercised",
     "crdr": "credit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITYUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Exercise of stock options",
        "label": "Stock Issued During Period, Value, Stock Options Exercised",
        "documentation": "Value of stock issued as a result of the exercise of stock options."
       }
      }
     },
     "auth_ref": [
      "r19",
      "r75",
      "r79",
      "r80",
      "r105"
     ]
    },
    "us-gaap_StockholdersEquity": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "StockholdersEquity",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity",
       "weight": 1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITYUnaudited",
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited",
      "http://www.northwestsavingsbank.com/role/ChangesinAccumulatedOtherComprehensiveIncomeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Total shareholders\u2019 equity",
        "periodStartLabel": "Beginning balance",
        "periodEndLabel": "Ending balance",
        "label": "Equity, Attributable to Parent",
        "documentation": "Amount of equity (deficit) attributable to parent. Excludes temporary equity and equity attributable to noncontrolling interest."
       }
      }
     },
     "auth_ref": [
      "r75",
      "r79",
      "r80",
      "r101",
      "r744",
      "r760",
      "r782",
      "r783",
      "r873",
      "r889",
      "r1003",
      "r1056",
      "r1124",
      "r1159"
     ]
    },
    "us-gaap_StockholdersEquityAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "StockholdersEquityAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Shareholders\u2019 equity:",
        "label": "Equity, Attributable to Parent [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_SubordinatedDebt": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "SubordinatedDebt",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0,
       "order": 1.0
      },
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails": {
       "parentTag": "us-gaap_LiabilitiesFairValueDisclosure",
       "weight": 1.0,
       "order": 7.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails",
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Subordinated debt",
        "label": "Subordinated Debt",
        "documentation": "Including the current and noncurrent portions, carrying value as of the balance sheet date of subordinated debt (with initial maturities beyond one year or beyond the operating cycle if longer). Subordinated debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets."
       }
      }
     },
     "auth_ref": [
      "r23",
      "r65",
      "r123",
      "r1148"
     ]
    },
    "us-gaap_SubordinatedDebtMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "SubordinatedDebtMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Subordinated debt",
        "label": "Subordinated Debt [Member]",
        "documentation": "This element represents domestic or foreign subordinated debt. Subordinated debt has a lower priority of repayment in liquidation of the entity's assets."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_SubstandardMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "SubstandardMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableCreditQualityIndicatorsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Substandard",
        "label": "Substandard [Member]",
        "documentation": "A category of financing receivables that are inadequately protected by the current sound worth and paying capacity of the obligor or of the collateral pledged, if any. Loans so classified have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the creditor will sustain some loss if the deficiencies are not corrected."
       }
      }
     },
     "auth_ref": [
      "r151",
      "r152",
      "r153",
      "r1060"
     ]
    },
    "us-gaap_SummaryOfDerivativeInstrumentsByHedgeDesignationAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "SummaryOfDerivativeInstrumentsByHedgeDesignationAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DerivativeFinancialInstrumentsGainLossonDerivativeFinancialInstrumentsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Hedging derivatives:",
        "label": "Summary of Derivative Instruments by Hedge Designation [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_SupplementalCashFlowInformationAbstract": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "SupplementalCashFlowInformationAbstract",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Supplemental Cash Flow Information:",
        "label": "Supplemental Cash Flow Information [Abstract]"
       }
      }
     },
     "auth_ref": []
    },
    "ecd_TabularListTableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "TabularListTableTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Tabular List, Table",
        "label": "Tabular List [Table Text Block]"
       }
      }
     },
     "auth_ref": [
      "r945"
     ]
    },
    "nwbi_TermNotesPayableToBanksMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "TermNotesPayableToBanksMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails",
      "http://www.northwestsavingsbank.com/role/BorrowedFundsScheduleofBorrowedFundsDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Term notes payable to the FHLB of Pittsburgh, due within one year",
        "label": "Term Notes Payable To Banks [Member]",
        "documentation": "Term Notes Payable To Banks"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_TimeDeposits": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "TimeDeposits",
     "crdr": "credit",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited": {
       "parentTag": "us-gaap_Deposits",
       "weight": 1.0,
       "order": 5.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFFINANCIALCONDITIONUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Time deposits",
        "label": "Time Deposits",
        "documentation": "Amount of time deposit liabilities, including certificates of deposit."
       }
      }
     },
     "auth_ref": [
      "r16",
      "r119"
     ]
    },
    "ecd_TotalShareholderRtnAmt": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "TotalShareholderRtnAmt",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Total Shareholder Return Amount",
        "label": "Total Shareholder Return Amount"
       }
      }
     },
     "auth_ref": [
      "r937"
     ]
    },
    "ecd_TotalShareholderRtnVsPeerGroupTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "TotalShareholderRtnVsPeerGroupTextBlock",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Total Shareholder Return Vs Peer Group",
        "label": "Total Shareholder Return Vs Peer Group [Text Block]"
       }
      }
     },
     "auth_ref": [
      "r944"
     ]
    },
    "ecd_TradingArrAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "TradingArrAxis",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Trading Arrangement:",
        "label": "Trading Arrangement [Axis]"
       }
      }
     },
     "auth_ref": [
      "r964"
     ]
    },
    "ecd_TradingArrByIndTable": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "TradingArrByIndTable",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Trading Arrangements, by Individual",
        "label": "Trading Arrangements, by Individual [Table]"
       }
      }
     },
     "auth_ref": [
      "r966"
     ]
    },
    "dei_TradingSymbol": {
     "xbrltype": "tradingSymbolItemType",
     "nsuri": "http://xbrl.sec.gov/dei/2024",
     "localname": "TradingSymbol",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/Cover"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Trading Symbol",
        "label": "Trading Symbol",
        "documentation": "Trading symbol of an instrument as listed on an exchange."
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_TransferOfOtherRealEstateAndOtherRepossessedPersonalProperty": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "TransferOfOtherRealEstateAndOtherRepossessedPersonalProperty",
     "crdr": "credit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Loan foreclosures and repossessions",
        "label": "Transfer of Other Real Estate and Other Repossessed Personal Property",
        "documentation": "Value of real estate and repossessed personal property transferred in noncash transactions during the reporting period."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsCarryingAmountandEstimatedFairValueofFinancialInstrumentsDetails",
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsNonrecurringAssetsthathadFairMarketValuesBelowtheCarryingAmountDetails",
      "http://www.northwestsavingsbank.com/role/GuaranteesDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableforsalebyContractualMaturityDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesCreditQualityofHeldToMaturitySecuritiesDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesFairValueofandGrossUnrealizedLossesonInvestmentSecuritiesDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturitybyContractualMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Financial Instruments [Domain]",
        "label": "Financial Instruments [Domain]",
        "documentation": "Instrument or contract that imposes a contractual obligation to deliver cash or another financial instrument or to exchange other financial instruments on potentially unfavorable terms and conveys a contractual right to receive cash or another financial instrument or to exchange other financial instruments on potentially favorable terms."
       }
      }
     },
     "auth_ref": [
      "r288",
      "r289",
      "r290",
      "r291",
      "r292",
      "r293",
      "r294",
      "r295",
      "r296",
      "r297",
      "r298",
      "r299",
      "r300",
      "r301",
      "r302",
      "r303",
      "r304",
      "r305",
      "r306",
      "r307",
      "r308",
      "r309",
      "r310",
      "r311",
      "r312",
      "r313",
      "r314",
      "r315",
      "r316",
      "r317",
      "r415",
      "r418",
      "r569",
      "r603",
      "r628",
      "r629",
      "r630",
      "r631",
      "r632",
      "r633",
      "r634",
      "r635",
      "r636",
      "r637",
      "r638",
      "r639",
      "r640",
      "r641",
      "r642",
      "r644",
      "r645",
      "r646",
      "r647",
      "r648",
      "r649",
      "r650",
      "r651",
      "r652",
      "r653",
      "r654",
      "r655",
      "r656",
      "r657",
      "r658",
      "r696",
      "r861",
      "r863",
      "r865",
      "r866",
      "r867",
      "r868",
      "r869",
      "r870",
      "r871",
      "r874",
      "r979",
      "r980",
      "r981",
      "r982",
      "r983",
      "r984",
      "r985",
      "r1052",
      "r1053",
      "r1054",
      "r1055",
      "r1107",
      "r1110",
      "r1111",
      "r1112",
      "r1119",
      "r1122"
     ]
    },
    "ecd_TrdArrAdoptionDate": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "TrdArrAdoptionDate",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Adoption Date",
        "label": "Trading Arrangement Adoption Date"
       }
      }
     },
     "auth_ref": [
      "r967"
     ]
    },
    "ecd_TrdArrDuration": {
     "xbrltype": "durationItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "TrdArrDuration",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Arrangement Duration",
        "label": "Trading Arrangement Duration"
       }
      }
     },
     "auth_ref": [
      "r968"
     ]
    },
    "ecd_TrdArrExpirationDate": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "TrdArrExpirationDate",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Expiration Date",
        "label": "Trading Arrangement Expiration Date"
       }
      }
     },
     "auth_ref": [
      "r968"
     ]
    },
    "ecd_TrdArrIndName": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "TrdArrIndName",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Name",
        "label": "Trading Arrangement, Individual Name"
       }
      }
     },
     "auth_ref": [
      "r966"
     ]
    },
    "ecd_TrdArrIndTitle": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "TrdArrIndTitle",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Title",
        "label": "Trading Arrangement, Individual Title"
       }
      }
     },
     "auth_ref": [
      "r966"
     ]
    },
    "ecd_TrdArrSecuritiesAggAvailAmt": {
     "xbrltype": "sharesItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "TrdArrSecuritiesAggAvailAmt",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Aggregate Available",
        "label": "Trading Arrangement, Securities Aggregate Available Amount"
       }
      }
     },
     "auth_ref": [
      "r969"
     ]
    },
    "ecd_TrdArrTerminationDate": {
     "xbrltype": "stringItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "TrdArrTerminationDate",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Termination Date",
        "label": "Trading Arrangement Termination Date"
       }
      }
     },
     "auth_ref": [
      "r967"
     ]
    },
    "us-gaap_TroubledDebtRestructuringsOnFinancingReceivablesTableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "TroubledDebtRestructuringsOnFinancingReceivablesTableTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/LoansReceivableTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of troubled debt restructurings (including re-modified TDRs) by portfolio segment and by class of financing receivable",
        "label": "Financing Receivable, Modified [Table Text Block]",
        "documentation": "Tabular disclosure of financing receivable modified for debtor experiencing financial difficulty."
       }
      }
     },
     "auth_ref": [
      "r154",
      "r155",
      "r831",
      "r1020",
      "r1021"
     ]
    },
    "nwbi_TrustPreferredIssuedTotalValue": {
     "xbrltype": "monetaryItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "TrustPreferredIssuedTotalValue",
     "crdr": "credit",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsCapitalDebtSecuritiesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "verboseLabel": "Capital debt securities",
        "label": "Trust Preferred Issued Total Value",
        "documentation": "The element represents the total face value of cumulative trust preferred securities issued."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsCapitalDebtSecuritiesDetails",
      "http://www.northwestsavingsbank.com/role/BorrowedFundsNarrativeDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Trust Preferred Investments",
        "verboseLabel": "Trust Preferred Investments",
        "label": "Trust Preferred Securities Subject to Mandatory Redemption [Member]",
        "documentation": "Preferred securities that embody an unconditional obligation requiring the issuer to redeem the securities by transferring the assets at a specified or determinable date (or dates) or upon an event that is certain to occur, that are issued by a consolidated trust to outside investors where the trust uses the proceeds of the issuance of those securities to purchase, from the financial institution that established the trust, an equivalent amount of junior subordinated debentures or other loans having stated maturities."
       }
      }
     },
     "auth_ref": [
      "r1097",
      "r1098"
     ]
    },
    "us-gaap_USGovernmentAgenciesDebtSecuritiesMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "USGovernmentAgenciesDebtSecuritiesMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesCreditQualityofHeldToMaturitySecuritiesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "U.S. government and agencies",
        "label": "US Government Agencies Debt Securities [Member]",
        "documentation": "Debentures, notes, and other debt securities issued by US government agencies, for example, but not limited to, Government National Mortgage Association (GNMA or Ginnie Mae). Excludes US treasury securities and debt issued by government-sponsored Enterprises (GSEs), for example, but is not limited to, Federal Home Loan Mortgage Corporation (FHLMC or Freddie Mac), Federal National Mortgage Association (FNMA or Fannie Mae), and the Federal Home Loan Bank (FHLB)."
       }
      }
     },
     "auth_ref": [
      "r824",
      "r848",
      "r1142"
     ]
    },
    "us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "USGovernmentSponsoredEnterprisesDebtSecuritiesMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesFairValueofandGrossUnrealizedLossesonInvestmentSecuritiesDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "verboseLabel": "Government-sponsored enterprises",
        "terseLabel": "U.S. government-sponsored enterprises",
        "label": "US Government-sponsored Enterprises Debt Securities [Member]",
        "documentation": "Debentures, bonds and other debt securities issued by US government sponsored entities (GSEs), for example, but not limited to, Federal Home Loan Mortgage Corporation (FHLMC or Freddie Mac), Federal National Mortgage Association (FNMA or Fannie Mae), and the Federal Home Loan Bank (FHLB). Excludes debt issued by the Government National Mortgage Association (GNMA or Ginnie Mae)."
       }
      }
     },
     "auth_ref": [
      "r1099",
      "r1142"
     ]
    },
    "us-gaap_USStatesAndPoliticalSubdivisionsMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "USStatesAndPoliticalSubdivisionsMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesFairValueofandGrossUnrealizedLossesonInvestmentSecuritiesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Municipal securities",
        "verboseLabel": "States and political subdivisions",
        "label": "US States and Political Subdivisions Debt Securities [Member]",
        "documentation": "Bonds or similar securities issued by state, city, or local US governments or the agencies operated by state, city, or local governments. Debt securities issued by state governments may include bond issuances of US state authorities including, for example, but not limited to, housing authorities, dormitory authorities, and general obligations while debt securities issued by political subdivisions of US states would include, for example, debt issuances by county, borough, city, or municipal governments."
       }
      }
     },
     "auth_ref": [
      "r848",
      "r874",
      "r876",
      "r1151"
     ]
    },
    "ecd_UndrlygSecurityMktPriceChngPct": {
     "xbrltype": "pureItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "UndrlygSecurityMktPriceChngPct",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Underlying Security Market Price Change",
        "label": "Underlying Security Market Price Change, Percent"
       }
      }
     },
     "auth_ref": [
      "r963"
     ]
    },
    "nwbi_UnionNationalCapitalTrustIIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "UnionNationalCapitalTrustIIMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsCapitalDebtSecuritiesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Union National Capital Trust II",
        "label": "Union National Capital Trust II [Member]",
        "documentation": "Union National Capital Trust II [Member]"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_UnionNationalCapitalTrustIMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "UnionNationalCapitalTrustIMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsCapitalDebtSecuritiesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Union National Capital Trust I",
        "label": "Union National Capital Trust I [Member]",
        "documentation": "Union National Capital Trust I [Member]"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_UniversalPreferredTrustMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "UniversalPreferredTrustMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/BorrowedFundsCapitalDebtSecuritiesDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Universal Preferred Trust",
        "label": "Universal Preferred Trust [Member]",
        "documentation": "Universal Preferred Trust Member"
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_UnrealizedGainLossOnInvestmentsTableTextBlock": {
     "xbrltype": "textBlockItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "UnrealizedGainLossOnInvestmentsTableTextBlock",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesTables"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Schedule of the fair value and gross unrealized losses on investment securities, aggregated by investment category and length of time individual securities have been in a continuous unrealized loss position",
        "label": "Unrealized Gain (Loss) on Investments [Table Text Block]",
        "documentation": "Tabular disclosure of unrealized gains and losses on investments."
       }
      }
     },
     "auth_ref": []
    },
    "us-gaap_ValuationTechniqueAxis": {
     "xbrltype": "stringItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ValuationTechniqueAxis",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Valuation Approach and Technique [Axis]",
        "label": "Valuation Approach and Technique [Axis]",
        "documentation": "Information by valuation approach and technique."
       }
      }
     },
     "auth_ref": [
      "r584",
      "r585",
      "r865",
      "r1112"
     ]
    },
    "us-gaap_ValuationTechniqueConsensusPricingModelMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ValuationTechniqueConsensusPricingModelMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Appraisal Value",
        "label": "Valuation Technique, Consensus Pricing Model [Member]",
        "documentation": "Valuation technique combining analyst price estimates."
       }
      }
     },
     "auth_ref": [
      "r865",
      "r1110",
      "r1111",
      "r1112"
     ]
    },
    "us-gaap_ValuationTechniqueDiscountedCashFlowMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ValuationTechniqueDiscountedCashFlowMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Discounted Cash Flow",
        "label": "Valuation Technique, Discounted Cash Flow [Member]",
        "documentation": "Valuation technique calculating present value of future cash flows."
       }
      }
     },
     "auth_ref": [
      "r865",
      "r1110",
      "r1111",
      "r1112"
     ]
    },
    "us-gaap_ValuationTechniqueDomain": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "ValuationTechniqueDomain",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Valuation Approach and Technique [Domain]",
        "label": "Valuation Approach and Technique [Domain]",
        "documentation": "Valuation approach and technique."
       }
      }
     },
     "auth_ref": [
      "r584",
      "r585",
      "r865",
      "r1112"
     ]
    },
    "nwbi_ValuationTechniqueQuotedPricingMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "ValuationTechniqueQuotedPricingMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Quoted prices for similar loans in active markets adjusted by an expected pull-through rate",
        "label": "Valuation Technique, Quoted Pricing [Member]",
        "documentation": "Valuation Technique, Quoted Pricing"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_VariableRateAgencyCMOsMortgageBackedSecuritiesMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "VariableRateAgencyCMOsMortgageBackedSecuritiesMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Variable rate agency CMOs",
        "label": "Variable Rate Agency CMOs Mortgage Backed Securities [Member]",
        "documentation": "Variable Rate Agency CMOs Mortgage Backed Securities"
       }
      }
     },
     "auth_ref": []
    },
    "nwbi_VariableRatePassThroughMortgageBackedSecuritiesMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://www.northwestsavingsbank.com/20240630",
     "localname": "VariableRatePassThroughMortgageBackedSecuritiesMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesAvailableForSaleDetails",
      "http://www.northwestsavingsbank.com/role/MarketableSecuritiesHeldToMaturityDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Variable rate pass-through",
        "label": "Variable Rate Pass-Through Mortgage Backed Securities [Member]",
        "documentation": "Variable Rate Pass-Through Mortgage Backed Securities"
       }
      }
     },
     "auth_ref": []
    },
    "ecd_VstngDtFrValOfEqtyAwrdsGrntdAndVstdInCvrdYrMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "VstngDtFrValOfEqtyAwrdsGrntdAndVstdInCvrdYrMember",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year",
        "label": "Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member]"
       }
      }
     },
     "auth_ref": [
      "r933"
     ]
    },
    "srt_WeightedAverageMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://fasb.org/srt/2024",
     "localname": "WeightedAverageMember",
     "presentation": [
      "http://www.northwestsavingsbank.com/role/DisclosuresAboutFairValueofFinancialInstrumentsAdditionalQuantitativeInformationAssetsMeasuredatFairValueRecurringandNonrecurringBasisLevel3InputDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Weighted Average",
        "label": "Weighted Average [Member]"
       }
      }
     },
     "auth_ref": [
      "r586",
      "r643",
      "r818",
      "r819",
      "r865",
      "r1132",
      "r1134",
      "r1138"
     ]
    },
    "us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment": {
     "xbrltype": "sharesItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "WeightedAverageNumberDilutedSharesOutstandingAdjustment",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/EarningsPerShareComputationofBasicandDilutedEarningsPerShareDetails": {
       "parentTag": "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding",
       "weight": 1.0,
       "order": 2.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/EarningsPerShareComputationofBasicandDilutedEarningsPerShareDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Add: Shares adjustment (in shares)",
        "label": "Weighted Average Number of Shares Outstanding, Diluted, Adjustment",
        "documentation": "The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation."
       }
      }
     },
     "auth_ref": [
      "r1010"
     ]
    },
    "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding": {
     "xbrltype": "sharesItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "WeightedAverageNumberOfDilutedSharesOutstanding",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/EarningsPerShareComputationofBasicandDilutedEarningsPerShareDetails": {
       "parentTag": null,
       "weight": null,
       "order": null,
       "root": true
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/EarningsPerShareComputationofBasicandDilutedEarningsPerShareDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "totalLabel": "Total weighted average common shares, diluted (in shares)",
        "label": "Weighted Average Number of Shares Outstanding, Diluted",
        "documentation": "The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period."
       }
      }
     },
     "auth_ref": [
      "r251",
      "r262"
     ]
    },
    "us-gaap_WeightedAverageNumberOfSharesOutstandingBasic": {
     "xbrltype": "sharesItemType",
     "nsuri": "http://fasb.org/us-gaap/2024",
     "localname": "WeightedAverageNumberOfSharesOutstandingBasic",
     "calculation": {
      "http://www.northwestsavingsbank.com/role/EarningsPerShareComputationofBasicandDilutedEarningsPerShareDetails": {
       "parentTag": "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding",
       "weight": 1.0,
       "order": 1.0
      }
     },
     "presentation": [
      "http://www.northwestsavingsbank.com/role/EarningsPerShareComputationofBasicandDilutedEarningsPerShareDetails"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Weighted average common shares outstanding, basic (in shares)",
        "label": "Weighted Average Number of Shares Outstanding, Basic",
        "documentation": "Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period."
       }
      }
     },
     "auth_ref": [
      "r249",
      "r262"
     ]
    },
    "ecd_YrEndFrValOfEqtyAwrdsGrntdInCvrdYrOutsdngAndUnvstdMember": {
     "xbrltype": "domainItemType",
     "nsuri": "http://xbrl.sec.gov/ecd/2024",
     "localname": "YrEndFrValOfEqtyAwrdsGrntdInCvrdYrOutsdngAndUnvstdMember",
     "presentation": [
      "http://xbrl.sec.gov/ecd/role/PvpDisclosure"
     ],
     "lang": {
      "en-us": {
       "role": {
        "terseLabel": "Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested",
        "label": "Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member]"
       }
      }
     },
     "auth_ref": [
      "r931"
     ]
    }
   }
  }
 },
 "std_ref": {
  "r0": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Section": "15",
   "Paragraph": "12",
   "Subparagraph": "(f)(2)",
   "SubTopic": "10",
   "Topic": "810",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481410/810-10-15-12"
  },
  "r1": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "1",
   "SubTopic": "230",
   "Topic": "830",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477401/830-230-45-1"
  },
  "r2": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "10A",
   "SubTopic": "10",
   "Topic": "220",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-10A"
  },
  "r3": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "10A",
   "Subparagraph": "(j)",
   "SubTopic": "10",
   "Topic": "220",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-10A"
  },
  "r4": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "10A",
   "Subparagraph": "(k)",
   "SubTopic": "10",
   "Topic": "220",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-10A"
  },
  "r5": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "12",
   "SubTopic": "10",
   "Topic": "220",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-12"
  },
  "r6": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "14",
   "Subparagraph": "(a)",
   "SubTopic": "10",
   "Topic": "230",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-14"
  },
  "r7": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "15",
   "SubTopic": "10",
   "Topic": "220",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-15"
  },
  "r8": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "2",
   "SubTopic": "405",
   "Topic": "942",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477787/942-405-45-2"
  },
  "r9": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "20",
   "SubTopic": "10",
   "Topic": "810",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481231/810-10-45-20"
  },
  "r10": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "21C",
   "SubTopic": "10",
   "Topic": "230",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-21C"
  },
  "r11": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "28",
   "Subparagraph": "(a)",
   "SubTopic": "10",
   "Topic": "230",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-28"
  },
  "r12": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "28",
   "Subparagraph": "(b)",
   "SubTopic": "10",
   "Topic": "230",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-28"
  },
  "r13": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "SubTopic": "10",
   "Topic": "360",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482099/360-10-50-1"
  },
  "r14": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "SubTopic": "10",
   "Topic": "480",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481648/480-10-50-1"
  },
  "r15": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "SubTopic": "20",
   "Topic": "715",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r16": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "SubTopic": "405",
   "Topic": "942",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478353/942-405-50-1"
  },
  "r17": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1A",
   "Subparagraph": "(c)(3)",
   "SubTopic": "10",
   "Topic": "810",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481203/810-10-50-1A"
  },
  "r18": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "SubTopic": "10",
   "Topic": "480",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481648/480-10-50-2"
  },
  "r19": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "SubTopic": "10",
   "Topic": "505",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481112/505-10-50-2"
  },
  "r20": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "SubTopic": "10",
   "Topic": "815",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-2"
  },
  "r21": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2A",
   "Subparagraph": "(a)",
   "SubTopic": "10",
   "Topic": "718",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2A"
  },
  "r22": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "15",
   "SubTopic": "10",
   "Topic": "220",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482739/220-10-55-15"
  },
  "r23": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.5-02(22))",
   "SubTopic": "10",
   "Topic": "210",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1"
  },
  "r24": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "220",
   "SubTopic": "10",
   "Section": "45",
   "Paragraph": "14",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-14"
  },
  "r25": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "220",
   "SubTopic": "10",
   "Section": "45",
   "Paragraph": "14A",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-14A"
  },
  "r26": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "220",
   "SubTopic": "10",
   "Section": "45",
   "Paragraph": "5",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-5"
  },
  "r27": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "230",
   "SubTopic": "10",
   "Section": "45",
   "Paragraph": "12",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-12"
  },
  "r28": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "230",
   "SubTopic": "10",
   "Section": "45",
   "Paragraph": "12",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-12"
  },
  "r29": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "230",
   "SubTopic": "10",
   "Section": "45",
   "Paragraph": "13",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-13"
  },
  "r30": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "230",
   "SubTopic": "10",
   "Section": "45",
   "Paragraph": "4",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-4"
  },
  "r31": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "230",
   "SubTopic": "10",
   "Section": "45",
   "Paragraph": "8",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-8"
  },
  "r32": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "230",
   "SubTopic": "10",
   "Section": "50",
   "Paragraph": "2",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482913/230-10-50-2"
  },
  "r33": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "260",
   "SubTopic": "10",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482662/260-10-50-1"
  },
  "r34": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "260",
   "SubTopic": "10",
   "Section": "55",
   "Paragraph": "52",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482635/260-10-55-52"
  },
  "r35": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "480",
   "SubTopic": "10",
   "Section": "45",
   "Paragraph": "2A",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481679/480-10-45-2A"
  },
  "r36": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "505",
   "SubTopic": "10",
   "Section": "50",
   "Paragraph": "3",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481112/505-10-50-3"
  },
  "r37": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "505",
   "SubTopic": "10",
   "Section": "50",
   "Paragraph": "8",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481112/505-10-50-8"
  },
  "r38": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "715",
   "SubTopic": "20",
   "Section": "50",
   "Paragraph": "2",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-2"
  },
  "r39": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "715",
   "SubTopic": "20",
   "Section": "50",
   "Paragraph": "3",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-3"
  },
  "r40": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "715",
   "SubTopic": "20",
   "Section": "50",
   "Paragraph": "4",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-4"
  },
  "r41": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "715",
   "SubTopic": "20",
   "Section": "55",
   "Paragraph": "17",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480482/715-20-55-17"
  },
  "r42": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "718",
   "SubTopic": "20",
   "Section": "55",
   "Paragraph": "12",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481089/718-20-55-12"
  },
  "r43": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "718",
   "SubTopic": "20",
   "Section": "55",
   "Paragraph": "13",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481089/718-20-55-13"
  },
  "r44": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "815",
   "SubTopic": "10",
   "Section": "50",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-1"
  },
  "r45": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "815",
   "SubTopic": "10",
   "Section": "50",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-1A"
  },
  "r46": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "815",
   "SubTopic": "10",
   "Section": "50",
   "Paragraph": "1A",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-1A"
  },
  "r47": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "815",
   "SubTopic": "10",
   "Section": "50",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-1B"
  },
  "r48": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "815",
   "SubTopic": "10",
   "Section": "50",
   "Paragraph": "4",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4"
  },
  "r49": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "815",
   "SubTopic": "10",
   "Section": "50",
   "Paragraph": "4A",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4A"
  },
  "r50": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "815",
   "SubTopic": "10",
   "Section": "50",
   "Paragraph": "4B",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4B"
  },
  "r51": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "815",
   "SubTopic": "10",
   "Section": "50",
   "Paragraph": "4C",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4C"
  },
  "r52": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "815",
   "SubTopic": "10",
   "Section": "50",
   "Paragraph": "4C",
   "Subparagraph": "(e)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4C"
  },
  "r53": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "815",
   "SubTopic": "10",
   "Section": "50",
   "Paragraph": "4D",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4D"
  },
  "r54": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "815",
   "SubTopic": "10",
   "Section": "50",
   "Paragraph": "5",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-5"
  },
  "r55": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "815",
   "SubTopic": "10",
   "Section": "50",
   "Paragraph": "8",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-8"
  },
  "r56": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "815",
   "SubTopic": "10",
   "Section": "55",
   "Paragraph": "182",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480401/815-10-55-182"
  },
  "r57": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "815",
   "SubTopic": "25",
   "Section": "50",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480238/815-25-50-1"
  },
  "r58": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "815",
   "SubTopic": "30",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480870/815-30-50-1"
  },
  "r59": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "825",
   "SubTopic": "10",
   "Section": "50",
   "Paragraph": "11",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482907/825-10-50-11"
  },
  "r60": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "825",
   "SubTopic": "10",
   "Section": "50",
   "Paragraph": "12",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482907/825-10-50-12"
  },
  "r61": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "942",
   "SubTopic": "470",
   "Section": "50",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477734/942-470-50-1"
  },
  "r62": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Name": "Accounting Standards Codification",
   "Topic": "942",
   "SubTopic": "470",
   "Section": "50",
   "Paragraph": "3",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477734/942-470-50-3"
  },
  "r63": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "210",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.5-02(19)(a))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1"
  },
  "r64": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "210",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.5-02(19)(b))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1"
  },
  "r65": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "210",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.5-02(19))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1"
  },
  "r66": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "210",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.5-02(20))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1"
  },
  "r67": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "210",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.5-02(21))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1"
  },
  "r68": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "210",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.5-02(22)(a)(1))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1"
  },
  "r69": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "210",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.5-02(22)(b))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1"
  },
  "r70": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "210",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.5-02(23))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1"
  },
  "r71": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "210",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.5-02(24))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1"
  },
  "r72": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "210",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.5-02(25))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1"
  },
  "r73": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "210",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.5-02(26))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1"
  },
  "r74": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "210",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.5-02(28))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1"
  },
  "r75": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "210",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.5-02(29))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1"
  },
  "r76": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "210",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.5-02(3))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1"
  },
  "r77": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "210",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.5-02(30)(a)(1))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1"
  },
  "r78": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "210",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.5-02(30)(a)(3))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1"
  },
  "r79": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "210",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.5-02(30))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1"
  },
  "r80": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "210",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.5-02(31))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1"
  },
  "r81": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "210",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.5-02(32))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1"
  },
  "r82": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "210",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.5-02(4))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1"
  },
  "r83": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "220",
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/220/tableOfContent"
  },
  "r84": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "10A",
   "Subparagraph": "(i)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-10A"
  },
  "r85": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "11",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-11"
  },
  "r86": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "2",
   "Subparagraph": "(SX 210.5-03(1)(e))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483621/220-10-S99-2"
  },
  "r87": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "2",
   "Subparagraph": "(SX 210.5-03(10))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483621/220-10-S99-2"
  },
  "r88": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "2",
   "Subparagraph": "(SX 210.5-03(20))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483621/220-10-S99-2"
  },
  "r89": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "2",
   "Subparagraph": "(SX 210.5-03(4))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483621/220-10-S99-2"
  },
  "r90": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "2",
   "Subparagraph": "(SX 210.5-03(6))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483621/220-10-S99-2"
  },
  "r91": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "2",
   "Subparagraph": "(SX 210.5-03(7)(c))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483621/220-10-S99-2"
  },
  "r92": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "2",
   "Subparagraph": "(SX 210.5-03(9)(a))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483621/220-10-S99-2"
  },
  "r93": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "230",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "15",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-15"
  },
  "r94": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "230",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "24",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-24"
  },
  "r95": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "230",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "25",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-25"
  },
  "r96": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "230",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "25",
   "Subparagraph": "(f)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-25"
  },
  "r97": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "230",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "28",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-28"
  },
  "r98": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "235",
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/235/tableOfContent"
  },
  "r99": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "250",
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/250/tableOfContent"
  },
  "r100": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "275",
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/275/tableOfContent"
  },
  "r101": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "310",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "2",
   "Subparagraph": "(SAB Topic 4.E)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480418/310-10-S99-2"
  },
  "r102": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "450",
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/450/tableOfContent"
  },
  "r103": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "505",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481112/505-10-50-6"
  },
  "r104": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "505",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "7",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481112/505-10-50-7"
  },
  "r105": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "505",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.3-04)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480008/505-10-S99-1"
  },
  "r106": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(i)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r107": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "715",
   "SubTopic": "20",
   "Subparagraph": "(h)",
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Section": "50",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r108": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "718",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(c)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2"
  },
  "r109": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "810",
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/810/tableOfContent"
  },
  "r110": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "810",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "19",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481231/810-10-45-19"
  },
  "r111": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "815",
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/815/tableOfContent"
  },
  "r112": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "815",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4B",
   "Subparagraph": "(c)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4B"
  },
  "r113": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "815",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4F",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4F"
  },
  "r114": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "825",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "10",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482907/825-10-50-10"
  },
  "r115": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "942",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-03(1))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478546/942-210-S99-1"
  },
  "r116": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "942",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-03(10)(4))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478546/942-210-S99-1"
  },
  "r117": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "942",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-03(10))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478546/942-210-S99-1"
  },
  "r118": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "942",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-03(11))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478546/942-210-S99-1"
  },
  "r119": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "942",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-03(12))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478546/942-210-S99-1"
  },
  "r120": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "942",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-03(13))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478546/942-210-S99-1"
  },
  "r121": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "942",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-03(15)(5))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478546/942-210-S99-1"
  },
  "r122": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "942",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-03(15))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478546/942-210-S99-1"
  },
  "r123": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "942",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-03(16))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478546/942-210-S99-1"
  },
  "r124": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "942",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-03(23))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478546/942-210-S99-1"
  },
  "r125": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "942",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-04(1))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1"
  },
  "r126": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "942",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-04(11))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1"
  },
  "r127": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "942",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-04(12))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1"
  },
  "r128": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "942",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-04(13))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1"
  },
  "r129": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "942",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-04(14)(b))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1"
  },
  "r130": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "942",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-04(14)(d))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1"
  },
  "r131": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "942",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-04(14))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1"
  },
  "r132": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "942",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-04(15))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1"
  },
  "r133": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "942",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-04(2))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1"
  },
  "r134": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "942",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-04(22))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1"
  },
  "r135": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "942",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-04(3))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1"
  },
  "r136": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "942",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-04(4))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1"
  },
  "r137": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "942",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-04(5))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1"
  },
  "r138": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "942",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-04(6))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1"
  },
  "r139": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "942",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-04(7))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1"
  },
  "r140": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "942",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-04(8))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1"
  },
  "r141": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "942",
   "SubTopic": "230",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "1",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479024/942-230-45-1"
  },
  "r142": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "942",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/942-320/tableOfContent"
  },
  "r143": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "942",
   "SubTopic": "325",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477974/942-325-45-1"
  },
  "r144": {
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef",
   "Topic": "942",
   "SubTopic": "470",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(e)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477734/942-470-50-3"
  },
  "r145": {
   "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef",
   "Topic": "280",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "32",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-32"
  },
  "r146": {
   "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef",
   "Topic": "280",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "32",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-32"
  },
  "r147": {
   "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef",
   "Topic": "310",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "11B",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-11B"
  },
  "r148": {
   "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef",
   "Topic": "310",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "11B",
   "Subparagraph": "(c)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-11B"
  },
  "r149": {
   "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef",
   "Topic": "310",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "15",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-15"
  },
  "r150": {
   "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef",
   "Topic": "310",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "29",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-29"
  },
  "r151": {
   "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef",
   "Topic": "310",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "29",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-29"
  },
  "r152": {
   "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef",
   "Topic": "310",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "29",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-29"
  },
  "r153": {
   "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef",
   "Topic": "310",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "29",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-29"
  },
  "r154": {
   "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef",
   "Topic": "310",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "33",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-33"
  },
  "r155": {
   "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef",
   "Topic": "310",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "34",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-34"
  },
  "r156": {
   "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef",
   "Topic": "310",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "7",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-7"
  },
  "r157": {
   "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef",
   "Topic": "310",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "7A",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-7A"
  },
  "r158": {
   "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef",
   "Topic": "310",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "40",
   "Paragraph": "7A",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481774/310-40-40-7A"
  },
  "r159": {
   "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef",
   "Topic": "310",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481746/310-40-50-1"
  },
  "r160": {
   "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Subparagraph": "(aa)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5"
  },
  "r161": {
   "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5"
  },
  "r162": {
   "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5"
  },
  "r163": {
   "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Subparagraph": "(f)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5"
  },
  "r164": {
   "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Subparagraph": "(f)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5"
  },
  "r165": {
   "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Subparagraph": "(f)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5"
  },
  "r166": {
   "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Subparagraph": "(f)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5"
  },
  "r167": {
   "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Subparagraph": "(f)(4)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5"
  },
  "r168": {
   "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef",
   "Topic": "840",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481161/840-30-50-1"
  },
  "r169": {
   "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef",
   "Topic": "942",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477268/942-320-50-3"
  },
  "r170": {
   "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef",
   "Topic": "942",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477268/942-320-50-3"
  },
  "r171": {
   "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef",
   "Topic": "942",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477268/942-320-50-3"
  },
  "r172": {
   "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef",
   "Topic": "942",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477268/942-320-50-3"
  },
  "r173": {
   "role": "http://fasb.org/us-gaap/role/ref/otherTransitionRef",
   "Topic": "942",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477268/942-320-50-3"
  },
  "r174": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "2",
   "Subparagraph": "(a)",
   "SubTopic": "20",
   "Topic": "740",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482659/740-20-45-2"
  },
  "r175": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "21",
   "SubTopic": "10",
   "Topic": "230",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-21"
  },
  "r176": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4C",
   "Subparagraph": "(c)",
   "SubTopic": "10",
   "Topic": "815",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4C"
  },
  "r177": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "9",
   "Subparagraph": "(b)",
   "SubTopic": "10",
   "Topic": "740",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482685/740-10-50-9"
  },
  "r178": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.4-08(h))",
   "SubTopic": "10",
   "Topic": "235",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480678/235-10-S99-1"
  },
  "r179": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Section": "1402",
   "Paragraph": "a",
   "Publisher": "SEC"
  },
  "r180": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Section": "1402",
   "Paragraph": "b",
   "Subparagraph": "(1)",
   "Publisher": "SEC"
  },
  "r181": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Section": "1402",
   "Paragraph": "b",
   "Subparagraph": "(1)(Instruction 3)",
   "Publisher": "SEC"
  },
  "r182": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Section": "1402",
   "Paragraph": "b",
   "Subparagraph": "(1)(Instruction 4)",
   "Publisher": "SEC"
  },
  "r183": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Section": "1403",
   "Paragraph": "b",
   "Publisher": "SEC"
  },
  "r184": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Section": "1404",
   "Paragraph": "a",
   "Publisher": "SEC"
  },
  "r185": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Section": "1404",
   "Paragraph": "b",
   "Publisher": "SEC"
  },
  "r186": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Section": "1405",
   "Paragraph": "a",
   "Subparagraph": "(4)",
   "Publisher": "SEC"
  },
  "r187": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Section": "1405",
   "Paragraph": "c",
   "Publisher": "SEC"
  },
  "r188": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "105",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "6",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479343/105-10-65-6"
  },
  "r189": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "105",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "6",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479343/105-10-65-6"
  },
  "r190": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "105",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "6",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479343/105-10-65-6"
  },
  "r191": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "105",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "6",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479343/105-10-65-6"
  },
  "r192": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "105",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "6",
   "Subparagraph": "(e)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479343/105-10-65-6"
  },
  "r193": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "105",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "7",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479343/105-10-65-7"
  },
  "r194": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "205",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "7",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483499/205-20-50-7"
  },
  "r195": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "210",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.5-02(15))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1"
  },
  "r196": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "210",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.5-02(16))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1"
  },
  "r197": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "210",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.5-02(17))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1"
  },
  "r198": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "210",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.5-02(18))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1"
  },
  "r199": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "210",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.5-02(30)(a)(4))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1"
  },
  "r200": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "210",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483466/210-20-50-3"
  },
  "r201": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "210",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "10",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483444/210-20-55-10"
  },
  "r202": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "10A",
   "Subparagraph": "(e)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-10A"
  },
  "r203": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "10A",
   "Subparagraph": "(f)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-10A"
  },
  "r204": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "10A",
   "Subparagraph": "(h)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-10A"
  },
  "r205": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "11",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-11"
  },
  "r206": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "12",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-12"
  },
  "r207": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "14A",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-14A"
  },
  "r208": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "15",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-15"
  },
  "r209": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "17A",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-17A"
  },
  "r210": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "1A",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-1A"
  },
  "r211": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "1A",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-1A"
  },
  "r212": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "1A",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-1A"
  },
  "r213": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "1B",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-1B"
  },
  "r214": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "1B",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482790/220-10-45-1B"
  },
  "r215": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482765/220-10-50-4"
  },
  "r216": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482765/220-10-50-5"
  },
  "r217": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482765/220-10-50-6"
  },
  "r218": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "2",
   "Subparagraph": "(SX 210.5-03(21))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483621/220-10-S99-2"
  },
  "r219": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "2",
   "Subparagraph": "(SX 210.5-03(24))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483621/220-10-S99-2"
  },
  "r220": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "2",
   "Subparagraph": "(SX 210.5-03(25))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483621/220-10-S99-2"
  },
  "r221": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "5",
   "Subparagraph": "(SAB Topic 6.B)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483621/220-10-S99-5"
  },
  "r222": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "230",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "11",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-11"
  },
  "r223": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "230",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "12",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-12"
  },
  "r224": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "230",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "17",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-17"
  },
  "r225": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "230",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "24",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-24"
  },
  "r226": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "230",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "25",
   "Subparagraph": "(e)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-25"
  },
  "r227": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "230",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482913/230-10-50-2"
  },
  "r228": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "230",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "8",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482913/230-10-50-8"
  },
  "r229": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "235",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.4-08(g)(1)(ii))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480678/235-10-S99-1"
  },
  "r230": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "235",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "3",
   "Subparagraph": "(SX 210.12-04(a))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480678/235-10-S99-3"
  },
  "r231": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "250",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "23",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483421/250-10-45-23"
  },
  "r232": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "250",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "24",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483421/250-10-45-24"
  },
  "r233": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "250",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "5",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483421/250-10-45-5"
  },
  "r234": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "250",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "6",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483421/250-10-45-6"
  },
  "r235": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "250",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(b)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483443/250-10-50-1"
  },
  "r236": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "250",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(b)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483443/250-10-50-1"
  },
  "r237": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "250",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(b)(4)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483443/250-10-50-1"
  },
  "r238": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "250",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "11",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483443/250-10-50-11"
  },
  "r239": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "250",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "11",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483443/250-10-50-11"
  },
  "r240": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "250",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483443/250-10-50-3"
  },
  "r241": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "250",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483443/250-10-50-4"
  },
  "r242": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "250",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483443/250-10-50-6"
  },
  "r243": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "250",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "7",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483443/250-10-50-7"
  },
  "r244": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "250",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "7",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483443/250-10-50-7"
  },
  "r245": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "250",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "8",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483443/250-10-50-8"
  },
  "r246": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "250",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "9",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483443/250-10-50-9"
  },
  "r247": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "250",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "5",
   "Subparagraph": "(SAB Topic 11.M.Q2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480530/250-10-S99-5"
  },
  "r248": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "260",
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/260/tableOfContent"
  },
  "r249": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "260",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "10",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482689/260-10-45-10"
  },
  "r250": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "260",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "11",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482689/260-10-45-11"
  },
  "r251": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "260",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "16",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482689/260-10-45-16"
  },
  "r252": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "260",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "2",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482689/260-10-45-2"
  },
  "r253": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "260",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "3",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482689/260-10-45-3"
  },
  "r254": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "260",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "40",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482689/260-10-45-40"
  },
  "r255": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "260",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "40",
   "Subparagraph": "(b)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482689/260-10-45-40"
  },
  "r256": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "260",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "40",
   "Subparagraph": "(b)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482689/260-10-45-40"
  },
  "r257": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "260",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "40",
   "Subparagraph": "(b)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482689/260-10-45-40"
  },
  "r258": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "260",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "60B",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482689/260-10-45-60B"
  },
  "r259": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "260",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "60B",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482689/260-10-45-60B"
  },
  "r260": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "260",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "60B",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482689/260-10-45-60B"
  },
  "r261": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "260",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "7",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482689/260-10-45-7"
  },
  "r262": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "260",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482662/260-10-50-1"
  },
  "r263": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "260",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482662/260-10-50-1"
  },
  "r264": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "260",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482662/260-10-50-1"
  },
  "r265": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "260",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482662/260-10-50-2"
  },
  "r266": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "260",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482662/260-10-50-3"
  },
  "r267": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "260",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "15",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482635/260-10-55-15"
  },
  "r268": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "270",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(i)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482964/270-10-50-1"
  },
  "r269": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "272",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483014/272-10-45-1"
  },
  "r270": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "280",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "22",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-22"
  },
  "r271": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "280",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "22",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-22"
  },
  "r272": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "280",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "22",
   "Subparagraph": "(h)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-22"
  },
  "r273": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "280",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "30",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-30"
  },
  "r274": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "280",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "32",
   "Subparagraph": "(ee)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-32"
  },
  "r275": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "280",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "1",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147476173/280-10-65-1"
  },
  "r276": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "280",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "1",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147476173/280-10-65-1"
  },
  "r277": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "310",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "13",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481990/310-10-45-13"
  },
  "r278": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "310",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "2",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481990/310-10-45-2"
  },
  "r279": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "310",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "11",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-11"
  },
  "r280": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "310",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "36",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-36"
  },
  "r281": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "310",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "42",
   "Subparagraph": "(a)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-42"
  },
  "r282": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "310",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "42",
   "Subparagraph": "(a)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-42"
  },
  "r283": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "310",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "42",
   "Subparagraph": "(a)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-42"
  },
  "r284": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "310",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "44",
   "Subparagraph": "(a)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-44"
  },
  "r285": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/320/tableOfContent"
  },
  "r286": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "11",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481830/320-10-45-11"
  },
  "r287": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "10",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-10"
  },
  "r288": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-2"
  },
  "r289": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-2"
  },
  "r290": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(aa)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-2"
  },
  "r291": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(aaa)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-2"
  },
  "r292": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-2"
  },
  "r293": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-2"
  },
  "r294": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-2"
  },
  "r295": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-3"
  },
  "r296": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-3"
  },
  "r297": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-3"
  },
  "r298": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-3"
  },
  "r299": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-3"
  },
  "r300": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5"
  },
  "r301": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5"
  },
  "r302": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Subparagraph": "(aaa)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5"
  },
  "r303": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5"
  },
  "r304": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Subparagraph": "(e)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5"
  },
  "r305": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Subparagraph": "(f)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5"
  },
  "r306": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Subparagraph": "(f)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5"
  },
  "r307": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Subparagraph": "(f)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5"
  },
  "r308": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Subparagraph": "(f)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5"
  },
  "r309": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Subparagraph": "(f)(4)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5"
  },
  "r310": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5A",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5A"
  },
  "r311": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5A",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5A"
  },
  "r312": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5A",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5A"
  },
  "r313": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5B",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5B"
  },
  "r314": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5B",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5B"
  },
  "r315": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5B",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5B"
  },
  "r316": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5B",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5B"
  },
  "r317": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5B",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5B"
  },
  "r318": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "9",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-9"
  },
  "r319": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "9",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-9"
  },
  "r320": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "323",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481687/323-10-50-3"
  },
  "r321": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "326",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "4",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479654/326-10-65-4"
  },
  "r322": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "326",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "4",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479654/326-10-65-4"
  },
  "r323": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "326",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "4",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479654/326-10-65-4"
  },
  "r324": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "326",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "4",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479654/326-10-65-4"
  },
  "r325": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "326",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "4",
   "Subparagraph": "(e)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479654/326-10-65-4"
  },
  "r326": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "326",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "4",
   "Subparagraph": "(e)(4)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479654/326-10-65-4"
  },
  "r327": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "326",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "5",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479654/326-10-65-5"
  },
  "r328": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "326",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "5",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479654/326-10-65-5"
  },
  "r329": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "326",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "5",
   "Subparagraph": "(b)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479654/326-10-65-5"
  },
  "r330": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "326",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "5",
   "Subparagraph": "(c)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479654/326-10-65-5"
  },
  "r331": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "326",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "11",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-11"
  },
  "r332": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "326",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "13",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-13"
  },
  "r333": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "326",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "13",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-13"
  },
  "r334": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "326",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "13",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-13"
  },
  "r335": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "326",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "13",
   "Subparagraph": "(e)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-13"
  },
  "r336": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "326",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "14",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-14"
  },
  "r337": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "326",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "16",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-16"
  },
  "r338": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "326",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "16",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-16"
  },
  "r339": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "326",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "16",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-16"
  },
  "r340": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "326",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "16",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-16"
  },
  "r341": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "326",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "16",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-16"
  },
  "r342": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "326",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3B",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-3B"
  },
  "r343": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "326",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-5"
  },
  "r344": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "326",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-5"
  },
  "r345": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "326",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-6"
  },
  "r346": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "326",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6A",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-6A"
  },
  "r347": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "326",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479130/326-30-45-1"
  },
  "r348": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "326",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479106/326-30-50-4"
  },
  "r349": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "326",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "7",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479106/326-30-50-7"
  },
  "r350": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "326",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "9",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479106/326-30-50-9"
  },
  "r351": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "350",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S45",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480265/350-10-S45-1"
  },
  "r352": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "350",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482598/350-20-45-1"
  },
  "r353": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "350",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "2",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482598/350-20-45-2"
  },
  "r354": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "350",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(e)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482573/350-20-50-1"
  },
  "r355": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "350",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482573/350-20-50-2"
  },
  "r356": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "350",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482686/350-30-45-1"
  },
  "r357": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "350",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "2",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482686/350-30-45-2"
  },
  "r358": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "350",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(a)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482665/350-30-50-1"
  },
  "r359": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "350",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(a)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482665/350-30-50-1"
  },
  "r360": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "350",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(a)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482665/350-30-50-1"
  },
  "r361": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "350",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482665/350-30-50-1"
  },
  "r362": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "350",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(a)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482665/350-30-50-2"
  },
  "r363": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "350",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(a)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482665/350-30-50-2"
  },
  "r364": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "350",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(a)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482665/350-30-50-2"
  },
  "r365": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "350",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(d)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482665/350-30-50-2"
  },
  "r366": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "350",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(d)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482665/350-30-50-2"
  },
  "r367": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "350",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482665/350-30-50-3"
  },
  "r368": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "350",
   "SubTopic": "60",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "1",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147476166/350-60-65-1"
  },
  "r369": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "350",
   "SubTopic": "60",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "1",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147476166/350-60-65-1"
  },
  "r370": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "360",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482099/360-10-50-3"
  },
  "r371": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "405",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(e)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477092/405-40-50-1"
  },
  "r372": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "405",
   "SubTopic": "50",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "1",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477123/405-50-65-1"
  },
  "r373": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "420",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482017/420-10-50-1"
  },
  "r374": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "450",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483076/450-20-50-4"
  },
  "r375": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "450",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "9",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483076/450-20-50-9"
  },
  "r376": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "450",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SAB Topic 5.Y.Q2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480102/450-20-S99-1"
  },
  "r377": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "450",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SAB Topic 5.Y.Q4)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480102/450-20-S99-1"
  },
  "r378": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "460",
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/460/tableOfContent"
  },
  "r379": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "460",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Subparagraph": "(a)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482425/460-10-50-4"
  },
  "r380": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "460",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Subparagraph": "(a)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482425/460-10-50-4"
  },
  "r381": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "460",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Subparagraph": "(a)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482425/460-10-50-4"
  },
  "r382": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "460",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Subparagraph": "(a)(4)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482425/460-10-50-4"
  },
  "r383": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "460",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Subparagraph": "(a)(5)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482425/460-10-50-4"
  },
  "r384": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "460",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Subparagraph": "(b)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482425/460-10-50-4"
  },
  "r385": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "460",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Subparagraph": "(b)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482425/460-10-50-4"
  },
  "r386": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "460",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482425/460-10-50-4"
  },
  "r387": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "460",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482425/460-10-50-4"
  },
  "r388": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "460",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Subparagraph": "(e)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482425/460-10-50-4"
  },
  "r389": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "460",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Subparagraph": "(f)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482425/460-10-50-4"
  },
  "r390": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "470",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1A",
   "Subparagraph": "(SX 210.13-01(a)(4)(i))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480097/470-10-S99-1A"
  },
  "r391": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "470",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1A",
   "Subparagraph": "(SX 210.13-01(a)(4)(iii)(A))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480097/470-10-S99-1A"
  },
  "r392": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "470",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1A",
   "Subparagraph": "(SX 210.13-01(a)(4)(iv))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480097/470-10-S99-1A"
  },
  "r393": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "470",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1A",
   "Subparagraph": "(SX 210.13-01(a)(5))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480097/470-10-S99-1A"
  },
  "r394": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "470",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1B",
   "Subparagraph": "(SX 210.13-02(a)(4)(i))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480097/470-10-S99-1B"
  },
  "r395": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "470",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1B",
   "Subparagraph": "(SX 210.13-02(a)(4)(iii)(A))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480097/470-10-S99-1B"
  },
  "r396": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "470",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1B",
   "Subparagraph": "(SX 210.13-02(a)(4)(iii)(B))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480097/470-10-S99-1B"
  },
  "r397": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "470",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1B",
   "Subparagraph": "(SX 210.13-02(a)(4)(iv))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480097/470-10-S99-1B"
  },
  "r398": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "470",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1B",
   "Subparagraph": "(SX 210.13-02(a)(5))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480097/470-10-S99-1B"
  },
  "r399": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "470",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1B",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481139/470-20-50-1B"
  },
  "r400": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "470",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1B",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481139/470-20-50-1B"
  },
  "r401": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "470",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1B",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481139/470-20-50-1B"
  },
  "r402": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "470",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1B",
   "Subparagraph": "(e)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481139/470-20-50-1B"
  },
  "r403": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "470",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1B",
   "Subparagraph": "(f)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481139/470-20-50-1B"
  },
  "r404": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "470",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1B",
   "Subparagraph": "(h)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481139/470-20-50-1B"
  },
  "r405": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "470",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1D",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481139/470-20-50-1D"
  },
  "r406": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "470",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1D",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481139/470-20-50-1D"
  },
  "r407": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "470",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1D",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481139/470-20-50-1D"
  },
  "r408": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "470",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1E",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481139/470-20-50-1E"
  },
  "r409": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "470",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1E",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481139/470-20-50-1E"
  },
  "r410": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "470",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1E",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481139/470-20-50-1E"
  },
  "r411": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "470",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1F",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481139/470-20-50-1F"
  },
  "r412": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "470",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1F",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481139/470-20-50-1F"
  },
  "r413": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "470",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1F",
   "Subparagraph": "(b)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481139/470-20-50-1F"
  },
  "r414": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "470",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1F",
   "Subparagraph": "(b)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481139/470-20-50-1F"
  },
  "r415": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "470",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1I",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481139/470-20-50-1I"
  },
  "r416": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "470",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481139/470-20-50-6"
  },
  "r417": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "505",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "13",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481112/505-10-50-13"
  },
  "r418": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "505",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "18",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481112/505-10-50-18"
  },
  "r419": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "505",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.3-04)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480008/505-10-S99-1"
  },
  "r420": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "606",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479837/606-10-45-1"
  },
  "r421": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "606",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "2",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479837/606-10-45-2"
  },
  "r422": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "606",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "8",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479806/606-10-50-8"
  },
  "r423": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/715/tableOfContent"
  },
  "r424": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "2",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480535/715-20-45-2"
  },
  "r425": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "3A",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480535/715-20-45-3A"
  },
  "r426": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r427": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(a)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r428": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(a)(10)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r429": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(a)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r430": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(a)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r431": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(a)(4)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r432": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(a)(5)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r433": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(a)(6)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r434": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(a)(7)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r435": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(a)(8)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r436": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(a)(9)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r437": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r438": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(b)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r439": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(b)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r440": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(b)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r441": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(b)(4)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r442": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(b)(5)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r443": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(b)(6)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r444": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(b)(7)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r445": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(b)(8)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r446": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r447": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(d)(i)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r448": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(d)(ii)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r449": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(d)(iii)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r450": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(d)(iv)(01)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r451": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(d)(iv)(02)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r452": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(d)(iv)(02)(A)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r453": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(d)(iv)(02)(B)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r454": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(d)(iv)(02)(C)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r455": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(d)(iv)(03)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r456": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(e)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r457": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(f)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r458": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(g)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r459": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(h)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r460": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(h)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r461": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(h)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r462": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(h)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r463": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(h)(4)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r464": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(h)(5)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r465": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(h)(6)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r466": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(h)(7)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r467": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(i)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r468": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(j)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r469": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(k)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r470": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(k)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r471": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(k)(4)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r472": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(l)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r473": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(n)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r474": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(o)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r475": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(p)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r476": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(q)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r477": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(r)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r478": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(r)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r479": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-2"
  },
  "r480": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-6"
  },
  "r481": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6",
   "Subparagraph": "(a)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-6"
  },
  "r482": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6",
   "Subparagraph": "(a)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-6"
  },
  "r483": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6",
   "Subparagraph": "(a)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-6"
  },
  "r484": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6",
   "Subparagraph": "(a)(4)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-6"
  },
  "r485": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6",
   "Subparagraph": "(a)(5)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-6"
  },
  "r486": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6",
   "Subparagraph": "(a)(6)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-6"
  },
  "r487": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6",
   "Subparagraph": "(a)(7)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-6"
  },
  "r488": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-6"
  },
  "r489": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "8",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-8"
  },
  "r490": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "2",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480126/715-20-S99-2"
  },
  "r491": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "60",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480266/715-60-50-3"
  },
  "r492": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "70",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480794/715-70-50-1"
  },
  "r493": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "80",
   "Name": "Accounting Standards Codification",
   "Section": "35",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480606/715-80-35-1"
  },
  "r494": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "80",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "11",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480576/715-80-50-11"
  },
  "r495": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "80",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480576/715-80-50-5"
  },
  "r496": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "715",
   "SubTopic": "80",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "9",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480576/715-80-50-9"
  },
  "r497": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "718",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "35",
   "Paragraph": "2",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480483/718-10-35-2"
  },
  "r498": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "718",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(a)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2"
  },
  "r499": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "718",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(a)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2"
  },
  "r500": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "718",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(a)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2"
  },
  "r501": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "718",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(c)(1)(i)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2"
  },
  "r502": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "718",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(c)(1)(ii)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2"
  },
  "r503": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "718",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(c)(1)(iii)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2"
  },
  "r504": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "718",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(c)(1)(iv)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2"
  },
  "r505": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "718",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(c)(1)(iv)(01)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2"
  },
  "r506": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "718",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(c)(1)(iv)(02)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2"
  },
  "r507": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "718",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(c)(1)(iv)(03)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2"
  },
  "r508": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "718",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(c)(1)(iv)(04)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2"
  },
  "r509": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "718",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(c)(2)(i)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2"
  },
  "r510": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "718",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(c)(2)(ii)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2"
  },
  "r511": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "718",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(c)(2)(iii)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2"
  },
  "r512": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "718",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(c)(2)(iii)(01)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2"
  },
  "r513": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "718",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(c)(2)(iii)(02)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2"
  },
  "r514": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "718",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(c)(2)(iii)(03)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2"
  },
  "r515": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "718",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(d)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2"
  },
  "r516": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "718",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(d)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2"
  },
  "r517": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "718",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(e)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2"
  },
  "r518": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "718",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(e)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2"
  },
  "r519": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "718",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(f)(2)(i)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2"
  },
  "r520": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "718",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(f)(2)(ii)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2"
  },
  "r521": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "718",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(f)(2)(iii)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2"
  },
  "r522": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "718",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(f)(2)(iv)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2"
  },
  "r523": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "718",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(f)(2)(v)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480429/718-10-50-2"
  },
  "r524": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "720",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483359/720-20-50-1"
  },
  "r525": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "740",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "10",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482685/740-10-50-10"
  },
  "r526": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "740",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "12",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482685/740-10-50-12"
  },
  "r527": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "740",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "8",
   "Subparagraph": "(d)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482615/740-10-65-8"
  },
  "r528": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "740",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "8",
   "Subparagraph": "(d)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482615/740-10-65-8"
  },
  "r529": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "740",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "9",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482615/740-10-65-9"
  },
  "r530": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "740",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "9",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482615/740-10-65-9"
  },
  "r531": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "740",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "9",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482615/740-10-65-9"
  },
  "r532": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "740",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SAB Topic 6.I.7)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479360/740-10-S99-1"
  },
  "r533": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "740",
   "SubTopic": "323",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "2",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478666/740-323-65-2"
  },
  "r534": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "740",
   "SubTopic": "323",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "2",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478666/740-323-65-2"
  },
  "r535": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "740",
   "SubTopic": "323",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "2",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478666/740-323-65-2"
  },
  "r536": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "740",
   "SubTopic": "323",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "2",
   "Subparagraph": "(d)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478666/740-323-65-2"
  },
  "r537": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "740",
   "SubTopic": "323",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "2",
   "Subparagraph": "(d)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478666/740-323-65-2"
  },
  "r538": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "740",
   "SubTopic": "323",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "2",
   "Subparagraph": "(e)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478666/740-323-65-2"
  },
  "r539": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "740",
   "SubTopic": "323",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "2",
   "Subparagraph": "(g)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478666/740-323-65-2"
  },
  "r540": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "740",
   "SubTopic": "323",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "2",
   "Subparagraph": "(g)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478666/740-323-65-2"
  },
  "r541": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "740",
   "SubTopic": "323",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "2",
   "Subparagraph": "(g)(4)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478666/740-323-65-2"
  },
  "r542": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "805",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "3",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479845/805-20-65-3"
  },
  "r543": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "805",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "3",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479845/805-20-65-3"
  },
  "r544": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "805",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "3",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479845/805-20-65-3"
  },
  "r545": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "805",
   "SubTopic": "60",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "1",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147476176/805-60-65-1"
  },
  "r546": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "805",
   "SubTopic": "60",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "1",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147476176/805-60-65-1"
  },
  "r547": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "805",
   "SubTopic": "60",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "1",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147476176/805-60-65-1"
  },
  "r548": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "805",
   "SubTopic": "60",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "1",
   "Subparagraph": "(d)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147476176/805-60-65-1"
  },
  "r549": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "805",
   "SubTopic": "60",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "1",
   "Subparagraph": "(g)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147476176/805-60-65-1"
  },
  "r550": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "810",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "25",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481231/810-10-45-25"
  },
  "r551": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "810",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "25",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481231/810-10-45-25"
  },
  "r552": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "810",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1A",
   "Subparagraph": "(c)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481203/810-10-50-1A"
  },
  "r553": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "810",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(bb)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481203/810-10-50-3"
  },
  "r554": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "810",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481203/810-10-50-3"
  },
  "r555": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4A",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4A"
  },
  "r556": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4E",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4E"
  },
  "r557": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4K",
   "Subparagraph": "(a)(4)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4K"
  },
  "r558": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5C",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-5C"
  },
  "r559": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "6",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480528/815-20-65-6"
  },
  "r560": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "6",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480528/815-20-65-6"
  },
  "r561": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "6",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480528/815-20-65-6"
  },
  "r562": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "6",
   "Subparagraph": "(e)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480528/815-20-65-6"
  },
  "r563": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "6",
   "Subparagraph": "(h)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480528/815-20-65-6"
  },
  "r564": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "6",
   "Subparagraph": "(h)(1)(i)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480528/815-20-65-6"
  },
  "r565": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "6",
   "Subparagraph": "(h)(1)(iii)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480528/815-20-65-6"
  },
  "r566": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "6",
   "Subparagraph": "(h)(1)(iv)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480528/815-20-65-6"
  },
  "r567": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "6",
   "Subparagraph": "(i)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480528/815-20-65-6"
  },
  "r568": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "6",
   "Subparagraph": "(i)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480528/815-20-65-6"
  },
  "r569": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Subparagraph": "(f)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480237/815-40-50-5"
  },
  "r570": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "1",
   "Subparagraph": "(a)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480175/815-40-65-1"
  },
  "r571": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "1",
   "Subparagraph": "(a)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480175/815-40-65-1"
  },
  "r572": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "1",
   "Subparagraph": "(a)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480175/815-40-65-1"
  },
  "r573": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "1",
   "Subparagraph": "(b)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480175/815-40-65-1"
  },
  "r574": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "1",
   "Subparagraph": "(b)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480175/815-40-65-1"
  },
  "r575": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "1",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480175/815-40-65-1"
  },
  "r576": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "1",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480175/815-40-65-1"
  },
  "r577": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "1",
   "Subparagraph": "(e)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480175/815-40-65-1"
  },
  "r578": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "1",
   "Subparagraph": "(e)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480175/815-40-65-1"
  },
  "r579": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "1",
   "Subparagraph": "(e)(4)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480175/815-40-65-1"
  },
  "r580": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "815",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "1",
   "Subparagraph": "(f)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480175/815-40-65-1"
  },
  "r581": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "35",
   "Paragraph": "54B",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482134/820-10-35-54B"
  },
  "r582": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2"
  },
  "r583": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2"
  },
  "r584": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(bbb)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2"
  },
  "r585": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(bbb)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2"
  },
  "r586": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(bbb)(2)(i)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2"
  },
  "r587": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2"
  },
  "r588": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(c)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2"
  },
  "r589": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(c)(1a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2"
  },
  "r590": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(c)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2"
  },
  "r591": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(c)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2"
  },
  "r592": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2"
  },
  "r593": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(g)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2"
  },
  "r594": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(h)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2"
  },
  "r595": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2E",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2E"
  },
  "r596": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-3"
  },
  "r597": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-3"
  },
  "r598": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6A",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-6A"
  },
  "r599": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6A",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-6A"
  },
  "r600": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6A",
   "Subparagraph": "(e)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-6A"
  },
  "r601": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6A",
   "Subparagraph": "(f)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-6A"
  },
  "r602": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6A",
   "Subparagraph": "(h)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-6A"
  },
  "r603": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6B",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-6B"
  },
  "r604": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6B",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-6B"
  },
  "r605": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6B",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-6B"
  },
  "r606": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "13",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482477/820-10-65-13"
  },
  "r607": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "13",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482477/820-10-65-13"
  },
  "r608": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "825",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "2",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482736/825-10-45-2"
  },
  "r609": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "825",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "10",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482907/825-10-50-10"
  },
  "r610": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "825",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "28",
   "Subparagraph": "(f)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482907/825-10-50-28"
  },
  "r611": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "830",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "17",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481694/830-30-45-17"
  },
  "r612": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "830",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "20",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481694/830-30-45-20"
  },
  "r613": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "830",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "20",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481694/830-30-45-20"
  },
  "r614": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "830",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "20",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481694/830-30-45-20"
  },
  "r615": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "830",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "20",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481694/830-30-45-20"
  },
  "r616": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "830",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481674/830-30-50-1"
  },
  "r617": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "835",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "2",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482925/835-30-45-2"
  },
  "r618": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "835",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482900/835-30-50-1"
  },
  "r619": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "842",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "8",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479832/842-10-65-8"
  },
  "r620": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "842",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "35",
   "Paragraph": "12A",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479165/842-20-35-12A"
  },
  "r621": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "842",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "7A",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478964/842-20-50-7A"
  },
  "r622": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "848",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "1",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483550/848-10-65-1"
  },
  "r623": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "848",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "2",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483550/848-10-65-2"
  },
  "r624": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "848",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "2",
   "Subparagraph": "(a)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483550/848-10-65-2"
  },
  "r625": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "848",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "2",
   "Subparagraph": "(a)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483550/848-10-65-2"
  },
  "r626": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "848",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "2",
   "Subparagraph": "(a)(3)(iii)(01)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483550/848-10-65-2"
  },
  "r627": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "848",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "2",
   "Subparagraph": "(a)(3)(iii)(03)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483550/848-10-65-2"
  },
  "r628": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "860",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(b)(2)(i)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-3"
  },
  "r629": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "860",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(b)(2)(ii)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-3"
  },
  "r630": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "860",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(b)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-3"
  },
  "r631": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "860",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(bb)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-3"
  },
  "r632": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "860",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(bb)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-3"
  },
  "r633": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "860",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(bb)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-3"
  },
  "r634": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "860",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(c)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-3"
  },
  "r635": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "860",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(c)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-3"
  },
  "r636": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "860",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(c)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-3"
  },
  "r637": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "860",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Subparagraph": "(b)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-4"
  },
  "r638": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "860",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Subparagraph": "(b)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-4"
  },
  "r639": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "860",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Subparagraph": "(b)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-4"
  },
  "r640": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "860",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-4"
  },
  "r641": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "860",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481444/860-30-45-1"
  },
  "r642": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "860",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "7",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481420/860-30-50-7"
  },
  "r643": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "860",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "7",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481420/860-30-50-7"
  },
  "r644": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "860",
   "SubTopic": "50",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(a)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481229/860-50-50-3"
  },
  "r645": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "860",
   "SubTopic": "50",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(a)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481229/860-50-50-3"
  },
  "r646": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "860",
   "SubTopic": "50",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(a)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481229/860-50-50-3"
  },
  "r647": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "860",
   "SubTopic": "50",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(a)(4)(i)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481229/860-50-50-3"
  },
  "r648": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "860",
   "SubTopic": "50",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Subparagraph": "(a)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481229/860-50-50-4"
  },
  "r649": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "860",
   "SubTopic": "50",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Subparagraph": "(a)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481229/860-50-50-4"
  },
  "r650": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "860",
   "SubTopic": "50",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Subparagraph": "(a)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481229/860-50-50-4"
  },
  "r651": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "860",
   "SubTopic": "50",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Subparagraph": "(a)(4)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481229/860-50-50-4"
  },
  "r652": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "860",
   "SubTopic": "50",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Subparagraph": "(a)(5)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481229/860-50-50-4"
  },
  "r653": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "860",
   "SubTopic": "50",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Subparagraph": "(a)(6)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481229/860-50-50-4"
  },
  "r654": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "860",
   "SubTopic": "50",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Subparagraph": "(a)(7)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481229/860-50-50-4"
  },
  "r655": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "860",
   "SubTopic": "50",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481229/860-50-50-4"
  },
  "r656": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "860",
   "SubTopic": "50",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Subparagraph": "(e)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481229/860-50-50-4"
  },
  "r657": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "860",
   "SubTopic": "50",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Subparagraph": "(e)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481229/860-50-50-4"
  },
  "r658": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "860",
   "SubTopic": "50",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Subparagraph": "(e)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481229/860-50-50-4"
  },
  "r659": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "910",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482546/910-10-50-6"
  },
  "r660": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "924",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SAB Topic 11.L)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479941/924-10-S99-1"
  },
  "r661": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "926",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483154/926-20-50-5"
  },
  "r662": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "928",
   "SubTopic": "340",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478859/928-340-50-1"
  },
  "r663": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "940",
   "SubTopic": "820",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478119/940-820-50-1"
  },
  "r664": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "942",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-03(10)(1))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478546/942-210-S99-1"
  },
  "r665": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "942",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-03(6))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478546/942-210-S99-1"
  },
  "r666": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "942",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-03(7))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478546/942-210-S99-1"
  },
  "r667": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "942",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-04(10))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1"
  },
  "r668": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "942",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-04(11))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1"
  },
  "r669": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "942",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-04(23))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1"
  },
  "r670": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "942",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-04(26))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1"
  },
  "r671": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "942",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-04(27))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1"
  },
  "r672": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "942",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-04(9))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1"
  },
  "r673": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "942",
   "SubTopic": "235",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-05(b)(2))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477314/942-235-S99-1"
  },
  "r674": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "942",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477268/942-320-50-3"
  },
  "r675": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "942",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477268/942-320-50-3"
  },
  "r676": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "942",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477268/942-320-50-3"
  },
  "r677": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "942",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477268/942-320-50-3"
  },
  "r678": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "942",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3A",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477268/942-320-50-3A"
  },
  "r679": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "942",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3A",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477268/942-320-50-3A"
  },
  "r680": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "942",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3A",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477268/942-320-50-3A"
  },
  "r681": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "942",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3A",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477268/942-320-50-3A"
  },
  "r682": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "942",
   "SubTopic": "360",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478451/942-360-50-1"
  },
  "r683": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.7-03(a)(1))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478777/944-210-S99-1"
  },
  "r684": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.7-03(a)(10))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478777/944-210-S99-1"
  },
  "r685": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.7-03(a)(12))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478777/944-210-S99-1"
  },
  "r686": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.7-03(a)(15))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478777/944-210-S99-1"
  },
  "r687": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.7-03(a)(21))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478777/944-210-S99-1"
  },
  "r688": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.7-03(a)(22))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478777/944-210-S99-1"
  },
  "r689": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.7-03(a)(23)(a)(3))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478777/944-210-S99-1"
  },
  "r690": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.7-03(a)(23)(a)(4))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478777/944-210-S99-1"
  },
  "r691": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.7-03(a)(25))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478777/944-210-S99-1"
  },
  "r692": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.7-03(a)(8))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478777/944-210-S99-1"
  },
  "r693": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.7-04(11))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477250/944-220-S99-1"
  },
  "r694": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.7-04(18))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477250/944-220-S99-1"
  },
  "r695": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.7-04(19))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477250/944-220-S99-1"
  },
  "r696": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.7-04(2)(a))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477250/944-220-S99-1"
  },
  "r697": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.7-04(20))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477250/944-220-S99-1"
  },
  "r698": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.7-04(22))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477250/944-220-S99-1"
  },
  "r699": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.7-04(23))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477250/944-220-S99-1"
  },
  "r700": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.7-04(9))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477250/944-220-S99-1"
  },
  "r701": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480081/944-40-50-5"
  },
  "r702": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Subparagraph": "(e)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480081/944-40-50-5"
  },
  "r703": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "7A",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480081/944-40-50-7A"
  },
  "r704": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "9",
   "Subparagraph": "(a)(4)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480081/944-40-50-9"
  },
  "r705": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "2",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480016/944-40-65-2"
  },
  "r706": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "2",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480016/944-40-65-2"
  },
  "r707": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "2",
   "Subparagraph": "(e)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480016/944-40-65-2"
  },
  "r708": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "2",
   "Subparagraph": "(f)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480016/944-40-65-2"
  },
  "r709": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "2",
   "Subparagraph": "(f)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480016/944-40-65-2"
  },
  "r710": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "2",
   "Subparagraph": "(g)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480016/944-40-65-2"
  },
  "r711": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "2",
   "Subparagraph": "(g)(2)(i)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480016/944-40-65-2"
  },
  "r712": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "2",
   "Subparagraph": "(g)(2)(ii)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480016/944-40-65-2"
  },
  "r713": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "2",
   "Subparagraph": "(g)(2)(iii)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480016/944-40-65-2"
  },
  "r714": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "2",
   "Subparagraph": "(g)(2)(iv)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480016/944-40-65-2"
  },
  "r715": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "2",
   "Subparagraph": "(h)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480016/944-40-65-2"
  },
  "r716": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "2",
   "Subparagraph": "(h)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480016/944-40-65-2"
  },
  "r717": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "944",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SAB Topic 5.W.Q2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479583/944-40-S99-1"
  },
  "r718": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "3",
   "Subparagraph": "(SX 210.6-03(d))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479886/946-10-S99-3"
  },
  "r719": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "11",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480990/946-20-50-11"
  },
  "r720": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "9",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480990/946-20-50-9"
  },
  "r721": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "4",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478009/946-205-45-4"
  },
  "r722": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "4",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477796/946-210-45-4"
  },
  "r723": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(a)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-1"
  },
  "r724": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(b)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-1"
  },
  "r725": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(b)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-1"
  },
  "r726": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(c)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-1"
  },
  "r727": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(c)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-1"
  },
  "r728": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "12",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-12"
  },
  "r729": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6",
   "Subparagraph": "(a)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-6"
  },
  "r730": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6",
   "Subparagraph": "(a)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-6"
  },
  "r731": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6",
   "Subparagraph": "(a)(4)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-6"
  },
  "r732": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-6"
  },
  "r733": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6",
   "Subparagraph": "(e)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-6"
  },
  "r734": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6",
   "Subparagraph": "(f)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-6"
  },
  "r735": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-04(1))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1"
  },
  "r736": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-04(12)(b)(1))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1"
  },
  "r737": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-04(12)(b)(2))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1"
  },
  "r738": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-04(12)(b)(3))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1"
  },
  "r739": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-04(13)(a)(2))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1"
  },
  "r740": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-04(13)(a)(3))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1"
  },
  "r741": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-04(14))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1"
  },
  "r742": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-04(16)(a))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1"
  },
  "r743": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-04(17))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1"
  },
  "r744": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-04(19))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1"
  },
  "r745": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-04(2)(a))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1"
  },
  "r746": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-04(2)(b))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1"
  },
  "r747": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-04(3)(a))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1"
  },
  "r748": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-04(3)(b))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1"
  },
  "r749": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-04(3)(c))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1"
  },
  "r750": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-04(6)(b))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1"
  },
  "r751": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-04(6)(c))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1"
  },
  "r752": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-04(6)(d))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1"
  },
  "r753": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-04(6)(e))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1"
  },
  "r754": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-04(8))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1"
  },
  "r755": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-04(9)(b))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1"
  },
  "r756": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-04(9)(c))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1"
  },
  "r757": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-04(9)(d))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1"
  },
  "r758": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-04(9)(e))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1"
  },
  "r759": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "2",
   "Subparagraph": "(SX 210.6-05(2))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-2"
  },
  "r760": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "2",
   "Subparagraph": "(SX 210.6-05(4))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-2"
  },
  "r761": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "3",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479105/946-220-45-3"
  },
  "r762": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "7",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479105/946-220-45-7"
  },
  "r763": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-07(1)(a))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-1"
  },
  "r764": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-07(1))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-1"
  },
  "r765": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-07(2)(a))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-1"
  },
  "r766": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-07(2)(g)(3))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-1"
  },
  "r767": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-07(7)(a)(1))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-1"
  },
  "r768": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-07(7)(a)(2))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-1"
  },
  "r769": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-07(7)(a)(3))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-1"
  },
  "r770": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-07(7)(a)(5))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-1"
  },
  "r771": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-07(7)(a)(6))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-1"
  },
  "r772": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-07(7)(a)(7))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-1"
  },
  "r773": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-07(7)(c)(1))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-1"
  },
  "r774": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-07(7)(c)(2))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-1"
  },
  "r775": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-07(7)(c)(3))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-1"
  },
  "r776": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-07(7)(c)(5))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-1"
  },
  "r777": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-07(7)(c)(6))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-1"
  },
  "r778": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-07(7)(c)(7))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-1"
  },
  "r779": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-07(9))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-1"
  },
  "r780": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "3",
   "Subparagraph": "(SX 210.6-09(1)(d))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-3"
  },
  "r781": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "3",
   "Subparagraph": "(SX 210.6-09(4)(b))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-3"
  },
  "r782": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "3",
   "Subparagraph": "(SX 210.6-09(6))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-3"
  },
  "r783": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "3",
   "Subparagraph": "(SX 210.6-09(7))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-3"
  },
  "r784": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.12-12(Column A)(Footnote 1))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-1"
  },
  "r785": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.12-12(Column A)(Footnote 2))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-1"
  },
  "r786": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.12-12(Column C)(Footnote 5))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-1"
  },
  "r787": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "2",
   "Subparagraph": "(SX 210.12-12A(Column A)(Footnote 2))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-2"
  },
  "r788": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "2",
   "Subparagraph": "(SX 210.12-12A(Column C)(Footnote 4))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-2"
  },
  "r789": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "3",
   "Subparagraph": "(SX 210.12-12B(Column A)(Footnote 4)(a))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-3"
  },
  "r790": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "3",
   "Subparagraph": "(SX 210.12-12B(Column A)(Footnote 4)(b))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-3"
  },
  "r791": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "3",
   "Subparagraph": "(SX 210.12-12B(Column A)(Footnote 7))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-3"
  },
  "r792": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "3",
   "Subparagraph": "(SX 210.12-12B(Column C)(Footnote 2))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-3"
  },
  "r793": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "5",
   "Subparagraph": "(SX 210.12-13(Column A)(Footnote 3))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-5"
  },
  "r794": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "5",
   "Subparagraph": "(SX 210.12-13(Column C))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-5"
  },
  "r795": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "5",
   "Subparagraph": "(SX 210.12-13(Column D))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-5"
  },
  "r796": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "5",
   "Subparagraph": "(SX 210.12-13(Column G)(Footnote 8))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-5"
  },
  "r797": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "5",
   "Subparagraph": "(SX 210.12-13(Column G))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-5"
  },
  "r798": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "5A",
   "Subparagraph": "(SX 210.12-13A(Column B))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-5A"
  },
  "r799": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "5A",
   "Subparagraph": "(SX 210.12-13A(Column D))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-5A"
  },
  "r800": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "5A",
   "Subparagraph": "(SX 210.12-13A(Column E))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-5A"
  },
  "r801": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "5B",
   "Subparagraph": "(SX 210.12-13B(Column A))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-5B"
  },
  "r802": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "5B",
   "Subparagraph": "(SX 210.12-13B(Column B))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-5B"
  },
  "r803": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "5B",
   "Subparagraph": "(SX 210.12-13B(Column E)(Footnote 4))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-5B"
  },
  "r804": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "5B",
   "Subparagraph": "(SX 210.12-13B(Column E))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-5B"
  },
  "r805": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "5C",
   "Subparagraph": "(SX 210.12-13C(Column E))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-5C"
  },
  "r806": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "5C",
   "Subparagraph": "(SX 210.12-13C(Column H)(Footnote 7))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-5C"
  },
  "r807": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "5C",
   "Subparagraph": "(SX 210.12-13C(Column H))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-5C"
  },
  "r808": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "5D",
   "Subparagraph": "(SX 210.12-13D(Column A)(Footnote 2)(i))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-5D"
  },
  "r809": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "6",
   "Subparagraph": "(SX 210.12-14(Column A)(Footnote 2))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-6"
  },
  "r810": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "6",
   "Subparagraph": "(SX 210.12-14(Column E)(1))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-6"
  },
  "r811": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "6",
   "Subparagraph": "(SX 210.12-14(Column E)(Footnote 4))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-6"
  },
  "r812": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "6",
   "Subparagraph": "(SX 210.12-14(Column F)(Footnote 7))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-6"
  },
  "r813": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "7",
   "Subparagraph": "(SX 210.12-15(Column A))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-7"
  },
  "r814": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "7",
   "Subparagraph": "(SX 210.12-15(Column B))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-7"
  },
  "r815": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "7",
   "Subparagraph": "(SX 210.12-15(Column C))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-7"
  },
  "r816": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "7",
   "Subparagraph": "(SX 210.12-15(Column D))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-7"
  },
  "r817": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "948",
   "SubTopic": "310",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477011/948-310-45-1"
  },
  "r818": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "976",
   "SubTopic": "310",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477332/976-310-50-1"
  },
  "r819": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "978",
   "SubTopic": "310",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479230/978-310-50-1"
  },
  "r820": {
   "role": "http://www.xbrl.org/2003/role/disclosureRef",
   "Topic": "985",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481283/985-20-50-2"
  },
  "r821": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4D",
   "Subparagraph": "(a)(1)",
   "SubTopic": "10",
   "Topic": "815",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4D"
  },
  "r822": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "210",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "22",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483444/210-20-55-22"
  },
  "r823": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "15",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482739/220-10-55-15"
  },
  "r824": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "235",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.4-08(m)(1)(ii)(A))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480678/235-10-S99-1"
  },
  "r825": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "260",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482662/260-10-50-1"
  },
  "r826": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "260",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "52",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482635/260-10-55-52"
  },
  "r827": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "280",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "30",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-30"
  },
  "r828": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "280",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "31",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-31"
  },
  "r829": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "280",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "48",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482785/280-10-55-48"
  },
  "r830": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "280",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "49",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482785/280-10-55-49"
  },
  "r831": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "310",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "12A",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481933/310-10-55-12A"
  },
  "r832": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "326",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "10",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479294/326-20-55-10"
  },
  "r833": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "326",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "11",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479294/326-20-55-11"
  },
  "r834": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "326",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "12",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479294/326-20-55-12"
  },
  "r835": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "326",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "12",
   "Subparagraph": "(d)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479294/326-20-55-12"
  },
  "r836": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "326",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "15",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479294/326-20-55-15"
  },
  "r837": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "326",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "79",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479294/326-20-55-79"
  },
  "r838": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "326",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "80",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479294/326-20-55-80"
  },
  "r839": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "326",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "8",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479081/326-30-55-8"
  },
  "r840": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "350",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "24",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482548/350-20-55-24"
  },
  "r841": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "350",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "40",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482640/350-30-55-40"
  },
  "r842": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "470",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1B",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481139/470-20-50-1B"
  },
  "r843": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "470",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "69B",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481568/470-20-55-69B"
  },
  "r844": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "470",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "69C",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481568/470-20-55-69C"
  },
  "r845": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "470",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "69E",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481568/470-20-55-69E"
  },
  "r846": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "470",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "69F",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481568/470-20-55-69F"
  },
  "r847": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "505",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "13",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481112/505-10-50-13"
  },
  "r848": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(d)(ii)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r849": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(d)(iv)(01)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r850": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "17",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480482/715-20-55-17"
  },
  "r851": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "18",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480482/715-20-55-18"
  },
  "r852": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "715",
   "SubTopic": "80",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "11",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480576/715-80-50-11"
  },
  "r853": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "715",
   "SubTopic": "80",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "11",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480576/715-80-50-11"
  },
  "r854": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "715",
   "SubTopic": "80",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "11",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480576/715-80-50-11"
  },
  "r855": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "715",
   "SubTopic": "80",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480576/715-80-50-6"
  },
  "r856": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "715",
   "SubTopic": "80",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480576/715-80-50-6"
  },
  "r857": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "715",
   "SubTopic": "80",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480576/715-80-50-6"
  },
  "r858": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "715",
   "SubTopic": "80",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "8",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480547/715-80-55-8"
  },
  "r859": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "740",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "231",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482663/740-10-55-231"
  },
  "r860": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "815",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4D",
   "Subparagraph": "(a)(5)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4D"
  },
  "r861": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "100",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482078/820-10-55-100"
  },
  "r862": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "100",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482078/820-10-55-100"
  },
  "r863": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "101",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482078/820-10-55-101"
  },
  "r864": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "102",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482078/820-10-55-102"
  },
  "r865": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "103",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482078/820-10-55-103"
  },
  "r866": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "107",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482078/820-10-55-107"
  },
  "r867": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "107",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482078/820-10-55-107"
  },
  "r868": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "107",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482078/820-10-55-107"
  },
  "r869": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "107",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482078/820-10-55-107"
  },
  "r870": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "107",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482078/820-10-55-107"
  },
  "r871": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "107",
   "Subparagraph": "(e)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482078/820-10-55-107"
  },
  "r872": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "835",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "8",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482949/835-30-55-8"
  },
  "r873": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "852",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "10",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481372/852-10-55-10"
  },
  "r874": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "860",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "4",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481395/860-30-55-4"
  },
  "r875": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "944",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "29F",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480046/944-40-55-29F"
  },
  "r876": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "944",
   "SubTopic": "80",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "17",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480078/944-80-55-17"
  },
  "r877": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(b)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-1"
  },
  "r878": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6",
   "Subparagraph": "(a)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-6"
  },
  "r879": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477439/946-210-55-1"
  },
  "r880": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "946",
   "SubTopic": "310",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "1",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477802/946-310-45-1"
  },
  "r881": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.12-12(Column A)(Footnote 2)(i))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-1"
  },
  "r882": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "2",
   "Subparagraph": "(SX 210.12-12A(Column A)(Footnote 2))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-2"
  },
  "r883": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "3",
   "Subparagraph": "(SX 210.12-12B(Column A)(Footnote 1)(a))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-3"
  },
  "r884": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "5C",
   "Subparagraph": "(SX 210.12-13C(Column A)(Footnote 1))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-5C"
  },
  "r885": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "5C",
   "Subparagraph": "(SX 210.12-13C(Column B)(Footnote 1))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-5C"
  },
  "r886": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "6",
   "Subparagraph": "(SX 210.12-14(Column A)(Footnote 2))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-6"
  },
  "r887": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "946",
   "SubTopic": "830",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "39",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477346/946-830-45-39"
  },
  "r888": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "946",
   "SubTopic": "830",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "10",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479168/946-830-55-10"
  },
  "r889": {
   "role": "http://www.xbrl.org/2003/role/exampleRef",
   "Topic": "946",
   "SubTopic": "830",
   "Name": "Accounting Standards Codification",
   "Section": "55",
   "Paragraph": "12",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479168/946-830-55-12"
  },
  "r890": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Exchange Act",
   "Number": "240",
   "Section": "12",
   "Subsection": "b"
  },
  "r891": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Exchange Act",
   "Number": "240",
   "Section": "12",
   "Subsection": "b-2"
  },
  "r892": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Exchange Act",
   "Number": "240",
   "Section": "12",
   "Subsection": "d1-1"
  },
  "r893": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form 10-Q",
   "Number": "240",
   "Section": "308",
   "Subsection": "a"
  },
  "r894": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form 20-F",
   "Section": "16",
   "Subsection": "J",
   "Paragraph": "a"
  },
  "r895": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form 20-F",
   "Section": "6",
   "Subsection": "F",
   "Paragraph": "1"
  },
  "r896": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form 20-F",
   "Section": "6",
   "Subsection": "F",
   "Paragraph": "1",
   "Subparagraph": "i"
  },
  "r897": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form 20-F",
   "Section": "6",
   "Subsection": "F",
   "Paragraph": "1",
   "Subparagraph": "i",
   "Sentence": "A"
  },
  "r898": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form 20-F",
   "Section": "6",
   "Subsection": "F",
   "Paragraph": "1",
   "Subparagraph": "i",
   "Sentence": "B"
  },
  "r899": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form 20-F",
   "Section": "6",
   "Subsection": "F",
   "Paragraph": "1",
   "Subparagraph": "i",
   "Sentence": "C"
  },
  "r900": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form 20-F",
   "Section": "6",
   "Subsection": "F",
   "Paragraph": "1",
   "Subparagraph": "i",
   "Sentence": "D"
  },
  "r901": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form 20-F",
   "Section": "6",
   "Subsection": "F",
   "Paragraph": "1",
   "Subparagraph": "i",
   "Sentence": "E"
  },
  "r902": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form 20-F",
   "Section": "6",
   "Subsection": "F",
   "Paragraph": "1",
   "Subparagraph": "ii"
  },
  "r903": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form 20-F",
   "Section": "6",
   "Subsection": "F",
   "Paragraph": "1",
   "Subparagraph": "iii"
  },
  "r904": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form 20-F",
   "Section": "6",
   "Subsection": "F",
   "Paragraph": "2"
  },
  "r905": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form 40-F",
   "Section": "19",
   "Paragraph": "a"
  },
  "r906": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form 40-F",
   "Section": "19",
   "Paragraph": "a",
   "Subparagraph": "1"
  },
  "r907": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form 40-F",
   "Section": "19",
   "Paragraph": "a",
   "Subparagraph": "1",
   "Sentence": "i"
  },
  "r908": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form 40-F",
   "Section": "19",
   "Paragraph": "a",
   "Subparagraph": "1",
   "Sentence": "ii"
  },
  "r909": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form 40-F",
   "Section": "19",
   "Paragraph": "a",
   "Subparagraph": "1",
   "Sentence": "iii"
  },
  "r910": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form 40-F",
   "Section": "19",
   "Paragraph": "a",
   "Subparagraph": "1",
   "Sentence": "iv"
  },
  "r911": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form 40-F",
   "Section": "19",
   "Paragraph": "a",
   "Subparagraph": "1",
   "Sentence": "v"
  },
  "r912": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form 40-F",
   "Section": "19",
   "Paragraph": "a",
   "Subparagraph": "2"
  },
  "r913": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form 40-F",
   "Section": "19",
   "Paragraph": "a",
   "Subparagraph": "3"
  },
  "r914": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form 40-F",
   "Section": "19",
   "Paragraph": "b"
  },
  "r915": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-CSR",
   "Section": "18",
   "Paragraph": "a"
  },
  "r916": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-CSR",
   "Section": "18",
   "Paragraph": "a",
   "Subparagraph": "1"
  },
  "r917": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-CSR",
   "Section": "18",
   "Paragraph": "a",
   "Subparagraph": "1",
   "Sentence": "i"
  },
  "r918": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-CSR",
   "Section": "18",
   "Paragraph": "a",
   "Subparagraph": "1",
   "Sentence": "ii"
  },
  "r919": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-CSR",
   "Section": "18",
   "Paragraph": "a",
   "Subparagraph": "1",
   "Sentence": "iii"
  },
  "r920": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-CSR",
   "Section": "18",
   "Paragraph": "a",
   "Subparagraph": "1",
   "Sentence": "iv"
  },
  "r921": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-CSR",
   "Section": "18",
   "Paragraph": "a",
   "Subparagraph": "1",
   "Sentence": "v"
  },
  "r922": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-CSR",
   "Section": "18",
   "Paragraph": "a",
   "Subparagraph": "2"
  },
  "r923": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-CSR",
   "Section": "18",
   "Paragraph": "a",
   "Subparagraph": "3"
  },
  "r924": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Form N-CSR",
   "Section": "18",
   "Paragraph": "b"
  },
  "r925": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Forms 10-K, 10-Q, 20-F",
   "Number": "240",
   "Section": "13",
   "Subsection": "a-1"
  },
  "r926": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "v"
  },
  "r927": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "v",
   "Paragraph": "1"
  },
  "r928": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "v",
   "Paragraph": "2",
   "Subparagraph": "ii"
  },
  "r929": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "v",
   "Paragraph": "2",
   "Subparagraph": "iii"
  },
  "r930": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "v",
   "Paragraph": "2",
   "Subparagraph": "iii",
   "Sentence": "B",
   "Clause": "1",
   "Subclause": "ii"
  },
  "r931": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "v",
   "Paragraph": "2",
   "Subparagraph": "iii",
   "Sentence": "C",
   "Clause": "1",
   "Subclause": "i"
  },
  "r932": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "v",
   "Paragraph": "2",
   "Subparagraph": "iii",
   "Sentence": "C",
   "Clause": "1",
   "Subclause": "ii"
  },
  "r933": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "v",
   "Paragraph": "2",
   "Subparagraph": "iii",
   "Sentence": "C",
   "Clause": "1",
   "Subclause": "iii"
  },
  "r934": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "v",
   "Paragraph": "2",
   "Subparagraph": "iii",
   "Sentence": "C",
   "Clause": "1",
   "Subclause": "iv"
  },
  "r935": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "v",
   "Paragraph": "2",
   "Subparagraph": "iii",
   "Sentence": "C",
   "Clause": "1",
   "Subclause": "v"
  },
  "r936": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "v",
   "Paragraph": "2",
   "Subparagraph": "iii",
   "Sentence": "C",
   "Clause": "1",
   "Subclause": "vi"
  },
  "r937": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "v",
   "Paragraph": "2",
   "Subparagraph": "iv"
  },
  "r938": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "v",
   "Paragraph": "2",
   "Subparagraph": "vi"
  },
  "r939": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "v",
   "Paragraph": "3"
  },
  "r940": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "v",
   "Paragraph": "4"
  },
  "r941": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "v",
   "Paragraph": "5",
   "Subparagraph": "i"
  },
  "r942": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "v",
   "Paragraph": "5",
   "Subparagraph": "ii"
  },
  "r943": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "v",
   "Paragraph": "5",
   "Subparagraph": "iii"
  },
  "r944": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "v",
   "Paragraph": "5",
   "Subparagraph": "iv"
  },
  "r945": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "v",
   "Paragraph": "6"
  },
  "r946": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "v",
   "Paragraph": "6",
   "Subparagraph": "i"
  },
  "r947": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "w",
   "Paragraph": "1"
  },
  "r948": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "w",
   "Paragraph": "1",
   "Subparagraph": "i"
  },
  "r949": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "w",
   "Paragraph": "1",
   "Subparagraph": "i",
   "Sentence": "A"
  },
  "r950": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "w",
   "Paragraph": "1",
   "Subparagraph": "i",
   "Sentence": "B"
  },
  "r951": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "w",
   "Paragraph": "1",
   "Subparagraph": "i",
   "Sentence": "C"
  },
  "r952": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "w",
   "Paragraph": "1",
   "Subparagraph": "i",
   "Sentence": "D"
  },
  "r953": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "w",
   "Paragraph": "1",
   "Subparagraph": "i",
   "Sentence": "E"
  },
  "r954": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "w",
   "Paragraph": "1",
   "Subparagraph": "ii"
  },
  "r955": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "w",
   "Paragraph": "1",
   "Subparagraph": "iii"
  },
  "r956": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "w",
   "Paragraph": "2"
  },
  "r957": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "x",
   "Paragraph": "1"
  },
  "r958": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "x",
   "Paragraph": "2"
  },
  "r959": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "x",
   "Paragraph": "2",
   "Subparagraph": "ii",
   "Sentence": "A"
  },
  "r960": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "x",
   "Paragraph": "2",
   "Subparagraph": "ii",
   "Sentence": "C"
  },
  "r961": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "x",
   "Paragraph": "2",
   "Subparagraph": "ii",
   "Sentence": "D"
  },
  "r962": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "x",
   "Paragraph": "2",
   "Subparagraph": "ii",
   "Sentence": "E"
  },
  "r963": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "402",
   "Subsection": "x",
   "Paragraph": "2",
   "Subparagraph": "ii",
   "Sentence": "F"
  },
  "r964": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "408",
   "Subsection": "a"
  },
  "r965": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "408",
   "Subsection": "a",
   "Paragraph": "1"
  },
  "r966": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "408",
   "Subsection": "a",
   "Paragraph": "2",
   "Subparagraph": "A"
  },
  "r967": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "408",
   "Subsection": "a",
   "Paragraph": "2",
   "Subparagraph": "B"
  },
  "r968": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "408",
   "Subsection": "a",
   "Paragraph": "2",
   "Subparagraph": "C"
  },
  "r969": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "408",
   "Subsection": "a",
   "Paragraph": "2",
   "Subparagraph": "D"
  },
  "r970": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Number": "229",
   "Section": "408",
   "Subsection": "b",
   "Paragraph": "1"
  },
  "r971": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Section": "402",
   "Number": "229",
   "Subsection": "v",
   "Paragraph": "2",
   "Subparagraph": "iii",
   "Sentence": "C",
   "Clause": "1"
  },
  "r972": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Section": "402",
   "Subsection": "v",
   "Paragraph": "2",
   "Subparagraph": "iii",
   "Sentence": "A",
   "Number": "229"
  },
  "r973": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Section": "402",
   "Subsection": "v",
   "Paragraph": "2",
   "Subparagraph": "iii",
   "Sentence": "B",
   "Clause": "1",
   "Number": "229"
  },
  "r974": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-K",
   "Section": "402",
   "Subsection": "v",
   "Paragraph": "2",
   "Subparagraph": "iii",
   "Sentence": "B",
   "Clause": "1",
   "Subclause": "i",
   "Number": "229"
  },
  "r975": {
   "role": "http://www.xbrl.org/2003/role/presentationRef",
   "Publisher": "SEC",
   "Name": "Regulation S-T",
   "Number": "232",
   "Section": "405"
  },
  "r976": {
   "role": "http://www.xbrl.org/2003/role/recommendedDisclosureRef",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "SubTopic": "20",
   "Topic": "310",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481569/310-20-50-3"
  },
  "r977": {
   "role": "http://www.xbrl.org/2003/role/recommendedDisclosureRef",
   "Topic": "260",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "60",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482689/260-10-45-60"
  },
  "r978": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4CC",
   "SubTopic": "10",
   "Topic": "815",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4CC"
  },
  "r979": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Section": "1402",
   "Paragraph": "a",
   "Publisher": "SEC"
  },
  "r980": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Section": "1402",
   "Paragraph": "b",
   "Subparagraph": "(1)",
   "Publisher": "SEC"
  },
  "r981": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Section": "1402",
   "Paragraph": "b",
   "Subparagraph": "(2)",
   "Publisher": "SEC"
  },
  "r982": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Section": "1402",
   "Paragraph": "b",
   "Subparagraph": "(3)",
   "Publisher": "SEC"
  },
  "r983": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Section": "1402",
   "Paragraph": "c",
   "Subparagraph": "(2)(i)",
   "Publisher": "SEC"
  },
  "r984": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Section": "1402",
   "Paragraph": "c",
   "Subparagraph": "(2)(ii)",
   "Publisher": "SEC"
  },
  "r985": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Section": "1402",
   "Paragraph": "c",
   "Subparagraph": "(2)(iii)",
   "Publisher": "SEC"
  },
  "r986": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Section": "1405",
   "Paragraph": "a",
   "Subparagraph": "(1)",
   "Publisher": "SEC"
  },
  "r987": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Section": "1405",
   "Paragraph": "a",
   "Subparagraph": "(2)",
   "Publisher": "SEC"
  },
  "r988": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Section": "1405",
   "Paragraph": "a",
   "Subparagraph": "(3)",
   "Publisher": "SEC"
  },
  "r989": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "205",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483504/205-10-50-1"
  },
  "r990": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "210",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.5-02(3)(a)(4))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480566/210-10-S99-1"
  },
  "r991": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482765/220-10-50-4"
  },
  "r992": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482765/220-10-50-5"
  },
  "r993": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482765/220-10-50-6"
  },
  "r994": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "2",
   "Subparagraph": "(SX 210.5-03(2))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483621/220-10-S99-2"
  },
  "r995": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "2",
   "Subparagraph": "(SX 210.5-03(4))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483621/220-10-S99-2"
  },
  "r996": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "2",
   "Subparagraph": "(SX 210.5-03(7)(c))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483621/220-10-S99-2"
  },
  "r997": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "220",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "2",
   "Subparagraph": "(SX 210.5-03(9)(a))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483621/220-10-S99-2"
  },
  "r998": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "230",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "16",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-16"
  },
  "r999": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "230",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "21",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-21"
  },
  "r1000": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "230",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "28",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482740/230-10-45-28"
  },
  "r1001": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "230",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2A",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482913/230-10-50-2A"
  },
  "r1002": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "235",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.4-08(f))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480678/235-10-S99-1"
  },
  "r1003": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "235",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.4-08(g)(1)(ii))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480678/235-10-S99-1"
  },
  "r1004": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "235",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.4-08(h)(1)(Note 1))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480678/235-10-S99-1"
  },
  "r1005": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "250",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "23",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483421/250-10-45-23"
  },
  "r1006": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "250",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "24",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483421/250-10-45-24"
  },
  "r1007": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "250",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "5",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483421/250-10-45-5"
  },
  "r1008": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "250",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(c)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483443/250-10-50-1"
  },
  "r1009": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "250",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147483443/250-10-50-6"
  },
  "r1010": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "260",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482662/260-10-50-1"
  },
  "r1011": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "270",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(i)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482964/270-10-50-1"
  },
  "r1012": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "280",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "22",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-22"
  },
  "r1013": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "280",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "30",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-30"
  },
  "r1014": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "280",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "32",
   "Subparagraph": "(ee)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-32"
  },
  "r1015": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "280",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "32",
   "Subparagraph": "(f)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482810/280-10-50-32"
  },
  "r1016": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "310",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/310-10/tableOfContent"
  },
  "r1017": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "310",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "2",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481990/310-10-45-2"
  },
  "r1018": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "310",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "3",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481990/310-10-45-3"
  },
  "r1019": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "310",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-4"
  },
  "r1020": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "310",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "42",
   "Subparagraph": "(a)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-42"
  },
  "r1021": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "310",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "42",
   "Subparagraph": "(a)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-42"
  },
  "r1022": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "310",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "44",
   "Subparagraph": "(a)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481962/310-10-50-44"
  },
  "r1023": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "310",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "40",
   "Paragraph": "7",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481628/310-20-40-7"
  },
  "r1024": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "310",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481598/310-20-45-1"
  },
  "r1025": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "1",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481830/320-10-45-1"
  },
  "r1026": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "11",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481830/320-10-45-11"
  },
  "r1027": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-2"
  },
  "r1028": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-2"
  },
  "r1029": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-3"
  },
  "r1030": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-3"
  },
  "r1031": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-3"
  },
  "r1032": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-3"
  },
  "r1033": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-3"
  },
  "r1034": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5"
  },
  "r1035": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5"
  },
  "r1036": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Subparagraph": "(aaa)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5"
  },
  "r1037": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5"
  },
  "r1038": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Subparagraph": "(e)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5"
  },
  "r1039": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Subparagraph": "(f)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5"
  },
  "r1040": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Subparagraph": "(f)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5"
  },
  "r1041": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Subparagraph": "(f)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5"
  },
  "r1042": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Subparagraph": "(f)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5"
  },
  "r1043": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Subparagraph": "(f)(4)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5"
  },
  "r1044": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5A",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5A"
  },
  "r1045": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5A",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5A"
  },
  "r1046": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5A",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5A"
  },
  "r1047": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5B",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5B"
  },
  "r1048": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5B",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5B"
  },
  "r1049": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5B",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5B"
  },
  "r1050": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5B",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5B"
  },
  "r1051": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5B",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5B"
  },
  "r1052": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "320",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "9",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-9"
  },
  "r1053": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "321",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479536/321-10-50-3"
  },
  "r1054": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "321",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479536/321-10-50-3"
  },
  "r1055": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "321",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479536/321-10-50-3"
  },
  "r1056": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "323",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481687/323-10-50-3"
  },
  "r1057": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "326",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479344/326-20-45-1"
  },
  "r1058": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "326",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "13",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-13"
  },
  "r1059": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "326",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "14",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-14"
  },
  "r1060": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "326",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "5",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-5"
  },
  "r1061": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "326",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479130/326-30-45-1"
  },
  "r1062": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "350",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/350-20/tableOfContent"
  },
  "r1063": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "350",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482573/350-20-50-1"
  },
  "r1064": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "350",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482573/350-20-50-1"
  },
  "r1065": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "350",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482573/350-20-50-1"
  },
  "r1066": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "350",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482573/350-20-50-1"
  },
  "r1067": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "350",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482573/350-20-50-1"
  },
  "r1068": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "350",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(e)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482573/350-20-50-1"
  },
  "r1069": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "350",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(f)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482573/350-20-50-1"
  },
  "r1070": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "350",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(g)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482573/350-20-50-1"
  },
  "r1071": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "350",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(h)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482573/350-20-50-1"
  },
  "r1072": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "350",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482573/350-20-50-1A"
  },
  "r1073": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "350",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482573/350-20-50-2"
  },
  "r1074": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "350",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/350-30/tableOfContent"
  },
  "r1075": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "350",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482686/350-30-45-1"
  },
  "r1076": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "350",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(a)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482665/350-30-50-1"
  },
  "r1077": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "350",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(a)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482665/350-30-50-1"
  },
  "r1078": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "350",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(a)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482665/350-30-50-1"
  },
  "r1079": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "350",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482665/350-30-50-1"
  },
  "r1080": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "350",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482665/350-30-50-2"
  },
  "r1081": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "350",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(a)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482665/350-30-50-2"
  },
  "r1082": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "350",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482665/350-30-50-2"
  },
  "r1083": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "350",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(d)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482665/350-30-50-2"
  },
  "r1084": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "350",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(d)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482665/350-30-50-2"
  },
  "r1085": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "360",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "5",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482130/360-10-45-5"
  },
  "r1086": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "360",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482099/360-10-50-2"
  },
  "r1087": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "360",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482099/360-10-50-3"
  },
  "r1088": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "405",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477092/405-40-50-1"
  },
  "r1089": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "405",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477092/405-40-50-1"
  },
  "r1090": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "405",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(e)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477092/405-40-50-1"
  },
  "r1091": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "410",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "10",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481931/410-30-50-10"
  },
  "r1092": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "460",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482425/460-10-50-3"
  },
  "r1093": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "470",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1A",
   "Subparagraph": "(SX 210.13-01(a)(4)(ii))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480097/470-10-S99-1A"
  },
  "r1094": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "470",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1A",
   "Subparagraph": "(SX 210.13-01(a)(4)(iii))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480097/470-10-S99-1A"
  },
  "r1095": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "470",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1B",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481139/470-20-50-1B"
  },
  "r1096": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "470",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1D",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481139/470-20-50-1D"
  },
  "r1097": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "480",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481648/480-10-50-1"
  },
  "r1098": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "480",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481648/480-10-50-2"
  },
  "r1099": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "715",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(d)(ii)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1"
  },
  "r1100": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "740",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "22",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482685/740-10-50-22"
  },
  "r1101": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "740",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "23",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482685/740-10-50-23"
  },
  "r1102": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "815",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1A",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-1A"
  },
  "r1103": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "815",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1A",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-1A"
  },
  "r1104": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "815",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-1B"
  },
  "r1105": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "815",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4D",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480434/815-10-50-4D"
  },
  "r1106": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "815",
   "SubTopic": "40",
   "Name": "Accounting Standards Codification",
   "Section": "65",
   "Paragraph": "1",
   "Subparagraph": "(e)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480175/815-40-65-1"
  },
  "r1107": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "35",
   "Paragraph": "54B",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482134/820-10-35-54B"
  },
  "r1108": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2"
  },
  "r1109": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2"
  },
  "r1110": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(bbb)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2"
  },
  "r1111": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(bbb)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2"
  },
  "r1112": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(bbb)(2)(i)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2"
  },
  "r1113": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(c)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2"
  },
  "r1114": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(c)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2"
  },
  "r1115": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(c)(1a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2"
  },
  "r1116": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(c)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2"
  },
  "r1117": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(c)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2"
  },
  "r1118": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2"
  },
  "r1119": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2E",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-2E"
  },
  "r1120": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-3"
  },
  "r1121": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-3"
  },
  "r1122": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "820",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6A",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482106/820-10-50-6A"
  },
  "r1123": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "825",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "10",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482907/825-10-50-10"
  },
  "r1124": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "825",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "28",
   "Subparagraph": "(f)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482907/825-10-50-28"
  },
  "r1125": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "830",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "20",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481694/830-30-45-20"
  },
  "r1126": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "830",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481674/830-30-50-1"
  },
  "r1127": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "835",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482925/835-30-45-1A"
  },
  "r1128": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "835",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "2",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482925/835-30-45-2"
  },
  "r1129": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "835",
   "SubTopic": "30",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147482900/835-30-50-1"
  },
  "r1130": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "852",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "7",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481404/852-10-50-7"
  },
  "r1131": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "852",
   "SubTopic": "10",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "7",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481404/852-10-50-7"
  },
  "r1132": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "860",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(c)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-3"
  },
  "r1133": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "860",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(c)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-3"
  },
  "r1134": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "860",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(c)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-3"
  },
  "r1135": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "860",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(d)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-3"
  },
  "r1136": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "860",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Subparagraph": "(b)(1)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-4"
  },
  "r1137": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "860",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Subparagraph": "(b)(2)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-4"
  },
  "r1138": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "860",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "4",
   "Subparagraph": "(b)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481326/860-20-50-4"
  },
  "r1139": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "940",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/940-320/tableOfContent"
  },
  "r1140": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "942",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-03(10))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478546/942-210-S99-1"
  },
  "r1141": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "942",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.9-04(13))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478524/942-220-S99-1"
  },
  "r1142": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "942",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Subparagraph": "(b)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477268/942-320-50-2"
  },
  "r1143": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "942",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477268/942-320-50-3"
  },
  "r1144": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "942",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3A",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477268/942-320-50-3A"
  },
  "r1145": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "942",
   "SubTopic": "470",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "1",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478878/942-470-45-1"
  },
  "r1146": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "944",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.7-03(a)(15)(a))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478777/944-210-S99-1"
  },
  "r1147": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "944",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.7-03(a)(16)(a)(1))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478777/944-210-S99-1"
  },
  "r1148": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "944",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.7-03(a)(16)(a)(2))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478777/944-210-S99-1"
  },
  "r1149": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "944",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.7-03(a)(17))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478777/944-210-S99-1"
  },
  "r1150": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "944",
   "SubTopic": "310",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "3",
   "Subparagraph": "(a)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477363/944-310-50-3"
  },
  "r1151": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "944",
   "SubTopic": "80",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "1",
   "Subparagraph": "(e)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480109/944-80-50-1"
  },
  "r1152": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "946",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "15",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480990/946-20-50-15"
  },
  "r1153": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "946",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "16",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147480990/946-20-50-16"
  },
  "r1154": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "946",
   "SubTopic": "205",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "4",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478009/946-205-45-4"
  },
  "r1155": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "6",
   "Subparagraph": "(a)(3)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-6"
  },
  "r1156": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "946",
   "SubTopic": "210",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-04(12)(b)(1))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479170/946-210-S99-1"
  },
  "r1157": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "946",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "3",
   "Subparagraph": "(k)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479105/946-220-45-3"
  },
  "r1158": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "946",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "1",
   "Subparagraph": "(SX 210.6-07(2)(b))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-1"
  },
  "r1159": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "946",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "3",
   "Subparagraph": "(SX 210.6-09(4)(b))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-3"
  },
  "r1160": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "946",
   "SubTopic": "220",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "3",
   "Subparagraph": "(SX 210.6-09(7))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-3"
  },
  "r1161": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "946",
   "SubTopic": "310",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "1",
   "Subparagraph": "(a)",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477802/946-310-45-1"
  },
  "r1162": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "946",
   "SubTopic": "320",
   "Name": "Accounting Standards Codification",
   "Section": "S99",
   "Paragraph": "6",
   "Subparagraph": "(SX 210.12-14(Column E)(Footnote 6)(a))",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-6"
  },
  "r1163": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "946",
   "SubTopic": "830",
   "Name": "Accounting Standards Codification",
   "Section": "45",
   "Paragraph": "39",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147477346/946-830-45-39"
  },
  "r1164": {
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef",
   "Topic": "985",
   "SubTopic": "20",
   "Name": "Accounting Standards Codification",
   "Section": "50",
   "Paragraph": "2",
   "Publisher": "FASB",
   "URI": "https://asc.fasb.org/1943274/2147481283/985-20-50-2"
  }
 }
}
