{
 "instance": {
  "pbct-20200331.htm": {
   "axisCustom": 2,
   "axisStandard": 35,
   "contextCount": 571,
   "dts": {
    "calculationLink": {
     "local": [
      "pbct-20200331_cal.xml"
     ]
    },
    "definitionLink": {
     "local": [
      "pbct-20200331_def.xml"
     ],
     "remote": [
      "http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-eedm-def-2019-01-31.xml",
      "http://xbrl.fasb.org/srt/2019/elts/srt-eedm1-def-2019-01-31.xml"
     ]
    },
    "inline": {
     "local": [
      "pbct-20200331.htm"
     ]
    },
    "labelLink": {
     "local": [
      "pbct-20200331_lab.xml"
     ],
     "remote": [
      "https://xbrl.sec.gov/dei/2019/dei-doc-2019-01-31.xml",
      "http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-doc-2019-01-31.xml"
     ]
    },
    "presentationLink": {
     "local": [
      "pbct-20200331_pre.xml"
     ]
    },
    "referenceLink": {
     "remote": [
      "http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-ref-2019-01-31.xml",
      "https://xbrl.sec.gov/dei/2019/dei-ref-2019-01-31.xml"
     ]
    },
    "schema": {
     "local": [
      "pbct-20200331.xsd"
     ],
     "remote": [
      "http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd",
      "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/dtr/type/numeric-2009-12-16.xsd",
      "http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd",
      "http://www.xbrl.org/2005/xbrldt-2005.xsd",
      "http://www.xbrl.org/2006/ref-2006-02-27.xsd",
      "http://xbrl.fasb.org/srt/2019/elts/srt-types-2019-01-31.xsd",
      "http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd",
      "http://xbrl.fasb.org/us-gaap/2019/elts/us-roles-2019-01-31.xsd",
      "http://xbrl.fasb.org/srt/2019/elts/srt-roles-2019-01-31.xsd",
      "https://xbrl.sec.gov/country/2017/country-2017-01-31.xsd",
      "http://xbrl.fasb.org/us-gaap/2019/elts/us-types-2019-01-31.xsd",
      "https://xbrl.sec.gov/dei/2019/dei-2019-01-31.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/deprecated-2009-12-16.xsd",
      "http://www.xbrl.org/lrr/role/reference-2009-12-16.xsd",
      "http://xbrl.fasb.org/us-gaap/2019/elts/us-parts-codification-2019-01-31.xsd"
     ]
    }
   },
   "elementCount": 775,
   "entityCount": 1,
   "hidden": {
    "http://fasb.org/us-gaap/2019-01-31": 1,
    "http://www.peoples.com/20200331": 3,
    "http://xbrl.sec.gov/dei/2019-01-31": 5,
    "total": 9
   },
   "keyCustom": 59,
   "keyStandard": 476,
   "memberCustom": 47,
   "memberStandard": 77,
   "nsprefix": "pbct",
   "nsuri": "http://www.peoples.com/20200331",
   "report": {
    "R1": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dei:DocumentType",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "document",
     "isDefault": "true",
     "longName": "0001001 - Document - Cover Page",
     "role": "http://www.peoples.com/role/CoverPage",
     "shortName": "Cover Page",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dei:DocumentType",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R10": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:CashCashEquivalentsAndMarketableSecuritiesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2103102 - Disclosure - Cash and Cash Equivalents and Securities",
     "role": "http://www.peoples.com/role/CashandCashEquivalentsandSecurities",
     "shortName": "Cash and Cash Equivalents and Securities",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:CashCashEquivalentsAndMarketableSecuritiesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R11": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:FinancingReceivablesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2110103 - Disclosure - Loans",
     "role": "http://www.peoples.com/role/Loans",
     "shortName": "Loans",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:FinancingReceivablesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R12": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:AllowanceForCreditLossesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2121104 - Disclosure - Allowance For Credit Losses",
     "role": "http://www.peoples.com/role/AllowanceForCreditLosses",
     "shortName": "Allowance For Credit Losses",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:AllowanceForCreditLossesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R13": {
     "firstAnchor": {
      "ancestors": [
       "us-gaap:LessorSalesTypeLeasesTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:LesseeOperatingLeasesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2126105 - Disclosure - Leases",
     "role": "http://www.peoples.com/role/Leases",
     "shortName": "Leases",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "us-gaap:LessorSalesTypeLeasesTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:LesseeOperatingLeasesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R14": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:StockholdersEquityNoteDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2134106 - Disclosure - Stockholders' Equity",
     "role": "http://www.peoples.com/role/StockholdersEquity",
     "shortName": "Stockholders' Equity",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:StockholdersEquityNoteDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R15": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:EarningsPerShareTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2139107 - Disclosure - Earnings Per Common Share",
     "role": "http://www.peoples.com/role/EarningsPerCommonShare",
     "shortName": "Earnings Per Common Share",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:EarningsPerShareTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R16": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:GoodwillAndIntangibleAssetsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2142108 - Disclosure - Goodwill and Other Acquisition-Related Intangible Assets",
     "role": "http://www.peoples.com/role/GoodwillandOtherAcquisitionRelatedIntangibleAssets",
     "shortName": "Goodwill and Other Acquisition-Related Intangible Assets",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:GoodwillAndIntangibleAssetsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R17": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:PensionAndOtherPostretirementBenefitsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2144109 - Disclosure - Employee Benefit Plans",
     "role": "http://www.peoples.com/role/EmployeeBenefitPlans",
     "shortName": "Employee Benefit Plans",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:PensionAndOtherPostretirementBenefitsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R18": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2150110 - Disclosure - Legal Proceedings",
     "role": "http://www.peoples.com/role/LegalProceedings",
     "shortName": "Legal Proceedings",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R19": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:SegmentReportingDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2151111 - Disclosure - Segment Information",
     "role": "http://www.peoples.com/role/SegmentInformation",
     "shortName": "Segment Information",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:SegmentReportingDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R2": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:CashAndDueFromBanks",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1001002 - Statement - Consolidated Statements of Condition - (Unaudited)",
     "role": "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited",
     "shortName": "Consolidated Statements of Condition - (Unaudited)",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "lang": null,
      "name": "us-gaap:CashCashEquivalentsAndShortTermInvestments",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R20": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:FairValueDisclosuresTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2152112 - Disclosure - Fair Value Measurements",
     "role": "http://www.peoples.com/role/FairValueMeasurements",
     "shortName": "Fair Value Measurements",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:FairValueDisclosuresTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R21": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2158113 - Disclosure - Derivative Financial Instruments and Hedging Activities",
     "role": "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivities",
     "shortName": "Derivative Financial Instruments and Hedging Activities",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R22": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "pbct:BalanceSheetOffsettingDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2163114 - Disclosure - Balance Sheet Offsetting",
     "role": "http://www.peoples.com/role/BalanceSheetOffsetting",
     "shortName": "Balance Sheet Offsetting",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "pbct:BalanceSheetOffsettingDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R23": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2168115 - Disclosure - New Accounting Standards",
     "role": "http://www.peoples.com/role/NewAccountingStandards",
     "shortName": "New Accounting Standards",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R24": {
     "firstAnchor": {
      "ancestors": [
       "us-gaap:PensionAndOtherPostretirementBenefitsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:PensionAndOtherPostretirementPlansPolicy",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2245201 - Disclosure - Employee Benefit Plans (Policies)",
     "role": "http://www.peoples.com/role/EmployeeBenefitPlansPolicies",
     "shortName": "Employee Benefit Plans (Policies)",
     "subGroupType": "policies",
     "uniqueAnchor": {
      "ancestors": [
       "us-gaap:PensionAndOtherPostretirementBenefitsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:PensionAndOtherPostretirementPlansPolicy",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R25": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:UnrealizedGainLossOnInvestmentsTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2304301 - Disclosure - Cash and Cash Equivalents and Securities (Tables)",
     "role": "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesTables",
     "shortName": "Cash and Cash Equivalents and Securities (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:UnrealizedGainLossOnInvestmentsTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R26": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "us-gaap:FinancingReceivablesTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "pbct:ComponentsOfLoanPortfolioTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2311302 - Disclosure - Loans (Tables)",
     "role": "http://www.peoples.com/role/LoansTables",
     "shortName": "Loans (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "us-gaap:FinancingReceivablesTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "pbct:ComponentsOfLoanPortfolioTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R27": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2322303 - Disclosure - Allowance For Credit Losses (Tables)",
     "role": "http://www.peoples.com/role/AllowanceForCreditLossesTables",
     "shortName": "Allowance For Credit Losses (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R28": {
     "firstAnchor": {
      "ancestors": [
       "us-gaap:LessorDirectFinancingLeasesTextBlock",
       "us-gaap:LesseeOperatingLeasesTextBlock",
       "us-gaap:LessorSalesTypeLeasesTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "pbct:SalestypeAndDirectFinancingLeasesNetInvestmentInLeasesTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2327304 - Disclosure - Leases (Tables)",
     "role": "http://www.peoples.com/role/LeasesTables",
     "shortName": "Leases (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "us-gaap:LessorDirectFinancingLeasesTextBlock",
       "us-gaap:LesseeOperatingLeasesTextBlock",
       "us-gaap:LessorSalesTypeLeasesTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "pbct:SalestypeAndDirectFinancingLeasesNetInvestmentInLeasesTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R29": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2335305 - Disclosure - Stockholders' Equity (Tables)",
     "role": "http://www.peoples.com/role/StockholdersEquityTables",
     "shortName": "Stockholders' Equity (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R3": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:DebtSecuritiesHeldToMaturityAllowanceForCreditLoss",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1002003 - Statement - Consolidated Statements of Condition - (Unaudited) (Parenthetical)",
     "role": "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnauditedParenthetical",
     "shortName": "Consolidated Statements of Condition - (Unaudited) (Parenthetical)",
     "subGroupType": "parenthetical",
     "uniqueAnchor": {
      "ancestors": [
       "us-gaap:PreferredStockSharesIssued",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "lang": null,
      "name": "us-gaap:PreferredStockSharesIssued",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     }
    },
    "R30": {
     "firstAnchor": {
      "ancestors": [
       "us-gaap:EarningsPerShareTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2340306 - Disclosure - Earnings Per Common Share (Tables)",
     "role": "http://www.peoples.com/role/EarningsPerCommonShareTables",
     "shortName": "Earnings Per Common Share (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "us-gaap:EarningsPerShareTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R31": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "pbct:ComponentsOfNetPeriodicBenefitExpenseAndOtherAmountsTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2346307 - Disclosure - Employee Benefit Plans (Tables)",
     "role": "http://www.peoples.com/role/EmployeeBenefitPlansTables",
     "shortName": "Employee Benefit Plans (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "pbct:ComponentsOfNetPeriodicBenefitExpenseAndOtherAmountsTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R32": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2353308 - Disclosure - Fair Value Measurements (Tables)",
     "role": "http://www.peoples.com/role/FairValueMeasurementsTables",
     "shortName": "Fair Value Measurements (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R33": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfDerivativeInstrumentsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2359309 - Disclosure - Derivative Financial Instruments and Hedging Activities (Tables)",
     "role": "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesTables",
     "shortName": "Derivative Financial Instruments and Hedging Activities (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfDerivativeInstrumentsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R34": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "pbct:ScheduleOfOffsettingOfFinancialDerivativeAssetsAndLiabilitiesTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2364310 - Disclosure - Balance Sheet Offsetting (Tables)",
     "role": "http://www.peoples.com/role/BalanceSheetOffsettingTables",
     "shortName": "Balance Sheet Offsetting (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "pbct:ScheduleOfOffsettingOfFinancialDerivativeAssetsAndLiabilitiesTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R35": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:AmortizationMethodQualifiedAffordableHousingProjectInvestments",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2402401 - Disclosure - General (Detail)",
     "role": "http://www.peoples.com/role/GeneralDetail",
     "shortName": "General (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:AmortizationMethodQualifiedAffordableHousingProjectInvestments",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R36": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "us-gaap:CashCashEquivalentsAndMarketableSecuritiesTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "pbct:DebtSecuritiesAvailableForSaleAccruedInterestReceivable",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2405402 - Disclosure - Cash and Cash Equivalents and Securities - Additional Information (Detail)",
     "role": "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail",
     "shortName": "Cash and Cash Equivalents and Securities - Additional Information (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "us-gaap:CashCashEquivalentsAndMarketableSecuritiesTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "pbct:DebtSecuritiesAvailableForSaleAccruedInterestReceivable",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R37": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:InvestmentsClassifiedByContractualMaturityDateTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2406403 - Disclosure - Cash and Cash Equivalents and Securities - Available-for-Sale and Held-to-Maturity Debt Securities Gains (Losses) (Detail)",
     "role": "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAvailableforSaleandHeldtoMaturityDebtSecuritiesGainsLossesDetail",
     "shortName": "Cash and Cash Equivalents and Securities - Available-for-Sale and Held-to-Maturity Debt Securities Gains (Losses) (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:UnrealizedGainLossOnInvestmentsTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "lang": null,
      "name": "us-gaap:DebtSecuritiesAvailableForSaleAllowanceForCreditLoss",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R38": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:UnrealizedGainLossOnInvestmentsTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:HeldToMaturitySecurities",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2407404 - Disclosure - Cash and Cash Equivalents and Securities - Debt Securities Held-to-maturity Credit Quality (Details)",
     "role": "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesDebtSecuritiesHeldtomaturityCreditQualityDetails",
     "shortName": "Cash and Cash Equivalents and Securities - Debt Securities Held-to-maturity Credit Quality (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "ix:continuation",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i122d5bd67b3f47ce9461c88144661b30_I20200331",
      "decimals": "-5",
      "lang": null,
      "name": "us-gaap:HeldToMaturitySecurities",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R39": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPositionFairValueTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2408405 - Disclosure - Cash and Cash Equivalents and Securities - Continuous Unrealized Loss Positions (Detail)",
     "role": "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail",
     "shortName": "Cash and Cash Equivalents and Securities - Continuous Unrealized Loss Positions (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPositionFairValueTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R4": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:InterestAndFeeIncomeLoansCommercialRealEstate",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1003004 - Statement - Consolidated Statements of Income - (Unaudited)",
     "role": "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited",
     "shortName": "Consolidated Statements of Income - (Unaudited)",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:InterestAndFeeIncomeLoansCommercialRealEstate",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R40": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:InvestmentsClassifiedByContractualMaturityDateTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2409406 - Disclosure - Cash and Cash Equivalents and Securities - Summary of Amortized Cost and Fair Value to Contractual Maturity (Detail)",
     "role": "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail",
     "shortName": "Cash and Cash Equivalents and Securities - Summary of Amortized Cost and Fair Value to Contractual Maturity (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:InvestmentsClassifiedByContractualMaturityDateTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R41": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "us-gaap:FinancingReceivablesTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "pbct:NumberOfSegments",
      "reportCount": 1,
      "unique": true,
      "unitRef": "segment",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2412407 - Disclosure - Loans - Additional Information (Detail)",
     "role": "http://www.peoples.com/role/LoansAdditionalInformationDetail",
     "shortName": "Loans - Additional Information (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "us-gaap:FinancingReceivablesTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "pbct:NumberOfSegments",
      "reportCount": 1,
      "unique": true,
      "unitRef": "segment",
      "xsiNil": "false"
     }
    },
    "R42": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:LoansAndLeasesReceivableNetOfDeferredIncome",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2413408 - Disclosure - Loans - Summary of Loans by Loan Portfolio Segment and Class (Detail)",
     "role": "http://www.peoples.com/role/LoansSummaryofLoansbyLoanPortfolioSegmentandClassDetail",
     "shortName": "Loans - Summary of Loans by Loan Portfolio Segment and Class (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "ix:continuation",
       "div",
       "us-gaap:FinancingReceivablesTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "iee8b41c1309441f3abb3c69571a7eb71_I20200331",
      "decimals": "-5",
      "lang": null,
      "name": "us-gaap:LoansAndLeasesReceivableNetOfDeferredIncome",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R43": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:PastDueFinancingReceivablesTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:FinancingReceivableRecordedInvestmentCurrent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2414409 - Disclosure - Loans - Summary of Aging Information by Class of Loan (Detail)",
     "role": "http://www.peoples.com/role/LoansSummaryofAgingInformationbyClassofLoanDetail",
     "shortName": "Loans - Summary of Aging Information by Class of Loan (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:PastDueFinancingReceivablesTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:FinancingReceivableRecordedInvestmentCurrent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R44": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfFinancingReceivablesNonAccrualStatusTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "pbct:FinancingReceivableNonaccrualOriginatedInCurrentFiscalYear",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2415410 - Disclosure - Loans - Summarized Recorded Investments, by Class of Loan, in Originated Non-Performing Loans (Detail)",
     "role": "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail",
     "shortName": "Loans - Summarized Recorded Investments, by Class of Loan, in Originated Non-Performing Loans (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfFinancingReceivablesNonAccrualStatusTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "pbct:FinancingReceivableNonaccrualOriginatedInCurrentFiscalYear",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R45": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:TroubledDebtRestructuringsOnFinancingReceivablesTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:FinancingReceivableModificationsNumberOfContracts2",
      "reportCount": 1,
      "unique": true,
      "unitRef": "contract",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2416411 - Disclosure - Loans - Summary of Recorded Investments in TDRs by Class of Loan (Detail)",
     "role": "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanDetail",
     "shortName": "Loans - Summary of Recorded Investments in TDRs by Class of Loan (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:TroubledDebtRestructuringsOnFinancingReceivablesTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:FinancingReceivableModificationsNumberOfContracts2",
      "reportCount": 1,
      "unique": true,
      "unitRef": "contract",
      "xsiNil": "false"
     }
    },
    "R46": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "pbct:FinancingReceivablesModificationsWithSubsequentDefaultTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1",
      "reportCount": 1,
      "unique": true,
      "unitRef": "contract",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2417412 - Disclosure - Loans - Summary of Recorded Investments in TDRs by Class of Loan, Subsequently Defaulted (Detail)",
     "role": "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanSubsequentlyDefaultedDetail",
     "shortName": "Loans - Summary of Recorded Investments in TDRs by Class of Loan, Subsequently Defaulted (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "pbct:FinancingReceivablesModificationsWithSubsequentDefaultTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1",
      "reportCount": 1,
      "unique": true,
      "unitRef": "contract",
      "xsiNil": "false"
     }
    },
    "R47": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:FinancingReceivableCreditQualityIndicatorsTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "if650f6a3233d4bd983fcc2f525acc434_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2418413 - Disclosure - Loans - Schedule of Commercial Loans By Risk Ratings (Details)",
     "role": "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails",
     "shortName": "Loans - Schedule of Commercial Loans By Risk Ratings (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:FinancingReceivableCreditQualityIndicatorsTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "if650f6a3233d4bd983fcc2f525acc434_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R48": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "ia84cc1cdffc4462eba66a2bf51de3319_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2419414 - Disclosure - Loans - Schedule of Retail Loans By Risk Ratings (Details)",
     "role": "http://www.peoples.com/role/LoansScheduleofRetailLoansByRiskRatingsDetails",
     "shortName": "Loans - Schedule of Retail Loans By Risk Ratings (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "ia84cc1cdffc4462eba66a2bf51de3319_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R49": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:LoansAndLeasesReceivableNetOfDeferredIncome",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2420415 - Disclosure - Loans - Summary of Credit Quality Indicators by Class of Loan (Detail)",
     "role": "http://www.peoples.com/role/LoansSummaryofCreditQualityIndicatorsbyClassofLoanDetail",
     "shortName": "Loans - Summary of Credit Quality Indicators by Class of Loan (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i38d1391b257144c7ad9c27c731708adb_I20191231",
      "decimals": "-5",
      "lang": null,
      "name": "us-gaap:LoansAndLeasesReceivableNetOfDeferredIncome",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R5": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:NetIncomeLoss",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1004005 - Statement - Consolidated Statements of Comprehensive Income - (Unaudited)",
     "role": "http://www.peoples.com/role/ConsolidatedStatementsofComprehensiveIncomeUnaudited",
     "shortName": "Consolidated Statements of Comprehensive Income - (Unaudited)",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": "-5",
      "lang": null,
      "name": "us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R50": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2423416 - Disclosure - Allowance For Credit Losses (Details)",
     "role": "http://www.peoples.com/role/AllowanceForCreditLossesDetails",
     "shortName": "Allowance For Credit Losses (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R51": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i49542f1601e245309ea49d857345e6cc_I20191231",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:FinancingReceivableAllowanceForCreditLosses",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2424417 - Disclosure - Schedule of Allowance For Credit Losses (Details)",
     "role": "http://www.peoples.com/role/ScheduleofAllowanceForCreditLossesDetails",
     "shortName": "Schedule of Allowance For Credit Losses (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": "-5",
      "lang": null,
      "name": "us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R52": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i49542f1601e245309ea49d857345e6cc_I20191231",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:OffBalanceSheetCreditLossLiability",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2425418 - Disclosure - Allowance For Credit Losses - Off-Balance Sheet (Details)",
     "role": "http://www.peoples.com/role/AllowanceForCreditLossesOffBalanceSheetDetails",
     "shortName": "Allowance For Credit Losses - Off-Balance Sheet (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": "-5",
      "lang": null,
      "name": "us-gaap:OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R53": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock",
       "ix:continuation",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:OperatingLeaseLiability",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2428419 - Disclosure - Leases - Additional Information (Details)",
     "role": "http://www.peoples.com/role/LeasesAdditionalInformationDetails",
     "shortName": "Leases - Additional Information (Details)",
     "subGroupType": "details",
     "uniqueAnchor": null
    },
    "R54": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "pbct:SalestypeAndDirectFinancingLeasesNetInvestmentInLeasesTableTextBlock",
       "us-gaap:LessorDirectFinancingLeasesTextBlock",
       "us-gaap:LesseeOperatingLeasesTextBlock",
       "us-gaap:LessorSalesTypeLeasesTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:DirectFinancingLeaseLeaseReceivable",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2429420 - Disclosure - Leases - Net Investment in Lease Financing Receivables (Details)",
     "role": "http://www.peoples.com/role/LeasesNetInvestmentinLeaseFinancingReceivablesDetails",
     "shortName": "Leases - Net Investment in Lease Financing Receivables (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "pbct:SalestypeAndDirectFinancingLeasesNetInvestmentInLeasesTableTextBlock",
       "us-gaap:LessorDirectFinancingLeasesTextBlock",
       "us-gaap:LesseeOperatingLeasesTextBlock",
       "us-gaap:LessorSalesTypeLeasesTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:DirectFinancingLeaseLeaseReceivable",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R55": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:SalesTypeAndDirectFinancingLeasesLeaseReceivableMaturityTableTextBlock",
       "ix:continuation",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedRemainderOfFiscalYear",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2430421 - Disclosure - Leases - Contractual Maturities of Lease Financing Receivables (Details)",
     "role": "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseFinancingReceivablesDetails",
     "shortName": "Leases - Contractual Maturities of Lease Financing Receivables (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:SalesTypeAndDirectFinancingLeasesLeaseReceivableMaturityTableTextBlock",
       "ix:continuation",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedRemainderOfFiscalYear",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R56": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:OperatingLeaseLeaseIncomeTableTextBlock",
       "ix:continuation",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:SalesTypeAndDirectFinancingLeasesProfitLoss",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2431422 - Disclosure - Leases - Schedule of Lease Income (Details)",
     "role": "http://www.peoples.com/role/LeasesScheduleofLeaseIncomeDetails",
     "shortName": "Leases - Schedule of Lease Income (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:OperatingLeaseLeaseIncomeTableTextBlock",
       "ix:continuation",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:SalesTypeAndDirectFinancingLeasesProfitLoss",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R57": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:LeaseCostTableTextBlock",
       "ix:continuation",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:OperatingLeaseCost",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2432423 - Disclosure - Leases - Cost and Supplemental Information (Details)",
     "role": "http://www.peoples.com/role/LeasesCostandSupplementalInformationDetails",
     "shortName": "Leases - Cost and Supplemental Information (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:LeaseCostTableTextBlock",
       "ix:continuation",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:OperatingLeaseCost",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R58": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock",
       "ix:continuation",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2433424 - Disclosure - Leases - Contractual Maturities of Lease Liabilities (Details)",
     "role": "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails",
     "shortName": "Leases - Contractual Maturities of Lease Liabilities (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock",
       "ix:continuation",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R59": {
     "firstAnchor": {
      "ancestors": [
       "us-gaap:PreferredStockSharesAuthorized",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:PreferredStockSharesAuthorized",
      "reportCount": 1,
      "unitRef": "shares",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2436425 - Disclosure - Stockholders' Equity - Additional Information (Detail)",
     "role": "http://www.peoples.com/role/StockholdersEquityAdditionalInformationDetail",
     "shortName": "Stockholders' Equity - Additional Information (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "us-gaap:StockholdersEquityNoteDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i49542f1601e245309ea49d857345e6cc_I20191231",
      "decimals": "INF",
      "lang": null,
      "name": "us-gaap:StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     }
    },
    "R6": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i114beb68ea204c618e8af3bcc5e5ca0d_I20181231",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:StockholdersEquity",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1005006 - Statement - Consolidated Statements of Changes in Stockholders' Equity - (Unaudited)",
     "role": "http://www.peoples.com/role/ConsolidatedStatementsofChangesinStockholdersEquityUnaudited",
     "shortName": "Consolidated Statements of Changes in Stockholders' Equity - (Unaudited)",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i64bc52bfdfbb4834a5eab8b239851f9f_I20181231",
      "decimals": "-5",
      "lang": null,
      "name": "us-gaap:StockholdersEquity",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R60": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i49542f1601e245309ea49d857345e6cc_I20191231",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:StockholdersEquity",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2437426 - Disclosure - Stockholders' Equity - Schedule of Accumulated Other Comprehensive Loss (Detail)",
     "role": "http://www.peoples.com/role/StockholdersEquityScheduleofAccumulatedOtherComprehensiveLossDetail",
     "shortName": "Stockholders' Equity - Schedule of Accumulated Other Comprehensive Loss (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": "-5",
      "lang": null,
      "name": "us-gaap:OciBeforeReclassificationsNetOfTaxAttributableToParent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R61": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:OtherNoninterestExpense",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2438427 - Disclosure - Stockholders' Equity - Summary of Amounts Reclassified from AOCL (Detail)",
     "role": "http://www.peoples.com/role/StockholdersEquitySummaryofAmountsReclassifiedfromAOCLDetail",
     "shortName": "Stockholders' Equity - Summary of Amounts Reclassified from AOCL (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i140788126d694d9da01e0d55099773b8_D20200101-20200331",
      "decimals": "-5",
      "lang": null,
      "name": "us-gaap:NetIncomeLoss",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R62": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2441428 - Disclosure - Earnings Per Common Share (Detail)",
     "role": "http://www.peoples.com/role/EarningsPerCommonShareDetail",
     "shortName": "Earnings Per Common Share (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
       "us-gaap:EarningsPerShareTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": "-5",
      "lang": null,
      "name": "us-gaap:ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R63": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:Goodwill",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2443429 - Disclosure - Goodwill and Other Acquisition-Related Intangible Assets - Additional Information (Detail)",
     "role": "http://www.peoples.com/role/GoodwillandOtherAcquisitionRelatedIntangibleAssetsAdditionalInformationDetail",
     "shortName": "Goodwill and Other Acquisition-Related Intangible Assets - Additional Information (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "us-gaap:GoodwillAndIntangibleAssetsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "lang": null,
      "name": "us-gaap:BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R64": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "us-gaap:PensionAndOtherPostretirementPlansPolicy",
       "us-gaap:PensionAndOtherPostretirementBenefitsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "pbct:AverageCompensationTermWhichPensionPlanBenefitsAreBased",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2447430 - Disclosure - Employee Benefit Plans - Employee Pension and Other Postretirement Plans (Detail)",
     "role": "http://www.peoples.com/role/EmployeeBenefitPlansEmployeePensionandOtherPostretirementPlansDetail",
     "shortName": "Employee Benefit Plans - Employee Pension and Other Postretirement Plans (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "us-gaap:PensionAndOtherPostretirementPlansPolicy",
       "us-gaap:PensionAndOtherPostretirementBenefitsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "pbct:AverageCompensationTermWhichPensionPlanBenefitsAreBased",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R65": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "pbct:ComponentsOfNetPeriodicBenefitExpenseAndOtherAmountsTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i440b6aad88af4135baa7601bc5b2b488_D20200101-20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:DefinedBenefitPlanInterestCost",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2448431 - Disclosure - Employee Benefit Plans - Components of Net Periodic Benefit (Income) Expense and Other Amounts (Detail)",
     "role": "http://www.peoples.com/role/EmployeeBenefitPlansComponentsofNetPeriodicBenefitIncomeExpenseandOtherAmountsDetail",
     "shortName": "Employee Benefit Plans - Components of Net Periodic Benefit (Income) Expense and Other Amounts (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "pbct:ComponentsOfNetPeriodicBenefitExpenseAndOtherAmountsTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i440b6aad88af4135baa7601bc5b2b488_D20200101-20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:DefinedBenefitPlanInterestCost",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R66": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "ibea7a747a2214b7aa9cfe342b38e6e5a_I20070430",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:EmployeeStockOwnershipPlanESOPDebtStructureEmployerLoanGuarantee",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2449432 - Disclosure - Employee Benefit Plans - Employee Stock Ownership Plan (Detail)",
     "role": "http://www.peoples.com/role/EmployeeBenefitPlansEmployeeStockOwnershipPlanDetail",
     "shortName": "Employee Benefit Plans - Employee Stock Ownership Plan (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "ibea7a747a2214b7aa9cfe342b38e6e5a_I20070430",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:EmployeeStockOwnershipPlanESOPDebtStructureEmployerLoanGuarantee",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R67": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "us-gaap:FairValueByBalanceSheetGroupingTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i49542f1601e245309ea49d857345e6cc_I20191231",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2454433 - Disclosure - Fair Value Measurements - Additional Information (Detail)",
     "role": "http://www.peoples.com/role/FairValueMeasurementsAdditionalInformationDetail",
     "shortName": "Fair Value Measurements - Additional Information (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "us-gaap:FairValueMeasurementPolicyPolicyTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "ia1cd2ee6d99747b2859bbec89e5853d4_D20200101-20200331",
      "decimals": null,
      "lang": "en-US",
      "name": "pbct:MaturityPeriodOfAvailableForSaleResidentialMortgageBackedSecuritiesPortfolio",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R68": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:TradingSecuritiesDebt",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2455434 - Disclosure - Fair Value Measurements - Assets and Liabilities on Recurring Basis (Detail)",
     "role": "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail",
     "shortName": "Fair Value Measurements - Assets and Liabilities on Recurring Basis (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "lang": null,
      "name": "us-gaap:LiabilitiesFairValueDisclosure",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R69": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:LoansReceivableHeldForSaleNetNotPartOfDisposalGroup",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2456435 - Disclosure - Fair Value Measurements - Assets on Non-Recurring Basis (Detail)",
     "role": "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail",
     "shortName": "Fair Value Measurements - Assets on Non-Recurring Basis (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i25b81d217268402aad4576f504f45748_D20190101-20190331",
      "decimals": "-5",
      "lang": null,
      "name": "us-gaap:ProvisionForLoanAndLeaseLosses",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R7": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i7dc7e79534cd45738c1bdcff4c8a4a68_D20200101-20200331",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:CommonStockDividendsPerShareCashPaid",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usdPerShare",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1006007 - Statement - Consolidated Statements of Changes in Stockholders' Equity - (Unaudited) (Parenthetical)",
     "role": "http://www.peoples.com/role/ConsolidatedStatementsofChangesinStockholdersEquityUnauditedParenthetical",
     "shortName": "Consolidated Statements of Changes in Stockholders' Equity - (Unaudited) (Parenthetical)",
     "subGroupType": "parenthetical",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i7dc7e79534cd45738c1bdcff4c8a4a68_D20200101-20200331",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:CommonStockDividendsPerShareCashPaid",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usdPerShare",
      "xsiNil": "false"
     }
    },
    "R70": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:CashAndDueFromBanks",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2457436 - Disclosure - Fair Value Measurements - Financial Instruments (Detail)",
     "role": "http://www.peoples.com/role/FairValueMeasurementsFinancialInstrumentsDetail",
     "shortName": "Fair Value Measurements - Financial Instruments (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:FairValueByBalanceSheetGroupingTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id058dcf748ba4d009591f3db60863c07_I20200331",
      "decimals": "-5",
      "lang": null,
      "name": "us-gaap:CashAndDueFromBanks",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R71": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i458da1e0c4f44a4b81a519d34963a414_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "pbct:PeriodHedgedItemsAffectedEarnings",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2460437 - Disclosure - Derivative Financial Instruments and Hedging Activities - Additional Information (Detail)",
     "role": "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesAdditionalInformationDetail",
     "shortName": "Derivative Financial Instruments and Hedging Activities - Additional Information (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i458da1e0c4f44a4b81a519d34963a414_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "pbct:PeriodHedgedItemsAffectedEarnings",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R72": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "pbct:ScheduleOfOffsettingOfFinancialDerivativeAssetsAndLiabilitiesTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:DerivativeFairValueOfDerivativeAsset",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2461438 - Disclosure - Derivative Financial Instruments and Hedging Activities - Schedule of Notional Amount and Fair Value (Detail)",
     "role": "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail",
     "shortName": "Derivative Financial Instruments and Hedging Activities - Schedule of Notional Amount and Fair Value (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfDerivativeInstrumentsTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "lang": null,
      "name": "us-gaap:DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R73": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:GainLossOnDerivativeInstrumentsNetPretax",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2462439 - Disclosure - Derivative Financial Instruments and Hedging Activities - Impact on Income and AOCI (Detail)",
     "role": "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesImpactonIncomeandAOCIDetail",
     "shortName": "Derivative Financial Instruments and Hedging Activities - Impact on Income and AOCI (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:GainLossOnDerivativeInstrumentsNetPretax",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R74": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "pbct:ScheduleOfOffsettingOfFinancialDerivativeAssetsAndLiabilitiesTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:DerivativeFairValueOfDerivativeAsset",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2465440 - Disclosure - Balance Sheet Offsetting - Summary of Gross Presentation, Instruments Offset (Detail)",
     "role": "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail",
     "shortName": "Balance Sheet Offsetting - Summary of Gross Presentation, Instruments Offset (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "pbct:ScheduleOfOffsettingOfFinancialDerivativeAssetsAndLiabilitiesTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "lang": null,
      "name": "us-gaap:DerivativeAssetFairValueGrossLiability",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R75": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "pbct:ScheduleOfOffsettingOfCollateralSwapTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i8c1f03869d7e44ee981e4c89208e6dc2_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:DerivativeLiabilityFairValueOfCollateral",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2466441 - Disclosure - Balance Sheet Offsetting - Additional Information (Detail)",
     "role": "http://www.peoples.com/role/BalanceSheetOffsettingAdditionalInformationDetail",
     "shortName": "Balance Sheet Offsetting - Additional Information (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "pbct:ScheduleOfOffsettingOfCollateralSwapTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i8c1f03869d7e44ee981e4c89208e6dc2_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:DerivativeLiabilityFairValueOfCollateral",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R76": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:SecuritiesSoldUnderAgreementsToRepurchase",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2467442 - Disclosure - Balance Sheet Offsetting - Summary of Collateral Swaps (Detail)",
     "role": "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofCollateralSwapsDetail",
     "shortName": "Balance Sheet Offsetting - Summary of Collateral Swaps (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "pbct:ScheduleOfOffsettingOfCollateralSwapTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i025dd31e8a154753b9492243e20c061b_I20200331",
      "decimals": "-5",
      "lang": null,
      "name": "us-gaap:SecuritiesPurchasedUnderAgreementsToResellGross",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R77": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "id41d4031e6534cd9aeddcf9db34ca700_I20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:FinancingReceivableAllowanceForCreditLosses",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2469443 - Disclosure - New Accounting Standards (Details)",
     "role": "http://www.peoples.com/role/NewAccountingStandardsDetails",
     "shortName": "New Accounting Standards (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i63758fe72fdc45b48f73a36f8e7f492b_D20200101-20200331",
      "decimals": "4",
      "lang": null,
      "name": "pbct:RiskBasedCapitalRatioIncreaseDecrease",
      "reportCount": 1,
      "unique": true,
      "unitRef": "number",
      "xsiNil": "false"
     }
    },
    "R8": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:NetIncomeLoss",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1007008 - Statement - Consolidated Statements of Cash Flows - (Unaudited)",
     "role": "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited",
     "shortName": "Consolidated Statements of Cash Flows - (Unaudited)",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": "-5",
      "lang": null,
      "name": "pbct:AmortizationAndDepreciationOfPremisesAndEquipment",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R9": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2101101 - Disclosure - General",
     "role": "http://www.peoples.com/role/General",
     "shortName": "General",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "i18822bb064824aeca1dd9b9fc2747c86_D20200101-20200331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R9999": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pbct-20200331.htm",
      "contextRef": "ifacded124800482d95dfec7f73262dcf_I20200101",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "",
     "isDefault": "false",
     "longName": "Uncategorized Items - pbct-20200331.htm",
     "role": "http://xbrl.sec.gov/role/uncategorizedFacts",
     "shortName": "Uncategorized Items - pbct-20200331.htm",
     "subGroupType": "",
     "uniqueAnchor": null
    }
   },
   "segmentCount": 130,
   "tag": {
    "dei_AmendmentFlag": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.",
        "label": "Amendment Flag",
        "terseLabel": "Amendment Flag"
       }
      }
     },
     "localname": "AmendmentFlag",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_CityAreaCode": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Area code of city",
        "label": "City Area Code",
        "terseLabel": "City Area Code"
       }
      }
     },
     "localname": "CityAreaCode",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_CoverAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Cover page.",
        "label": "Cover [Abstract]"
       }
      }
     },
     "localname": "CoverAbstract",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "dei_CurrentFiscalYearEndDate": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "End date of current fiscal year in the format --MM-DD.",
        "label": "Current Fiscal Year End Date",
        "terseLabel": "Current Fiscal Year End Date"
       }
      }
     },
     "localname": "CurrentFiscalYearEndDate",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "gMonthDayItemType"
    },
    "dei_DocumentFiscalPeriodFocus": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Document Fiscal Period Focus",
        "terseLabel": "Document Fiscal Period Focus"
       }
      }
     },
     "localname": "DocumentFiscalPeriodFocus",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "fiscalPeriodItemType"
    },
    "dei_DocumentFiscalYearFocus": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "This is focus fiscal year of the document report in CCYY 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.",
        "label": "Document Fiscal Year Focus",
        "terseLabel": "Document Fiscal Year Focus"
       }
      }
     },
     "localname": "DocumentFiscalYearFocus",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "gYearItemType"
    },
    "dei_DocumentPeriodEndDate": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented.  If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD.",
        "label": "Document Period End Date",
        "terseLabel": "Document Period End Date"
       }
      }
     },
     "localname": "DocumentPeriodEndDate",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "dateItemType"
    },
    "dei_DocumentQuarterlyReport": {
     "auth_ref": [
      "r502"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Boolean flag that is true only for a form used as an quarterly report.",
        "label": "Document Quarterly Report",
        "terseLabel": "Document Quarterly Report"
       }
      }
     },
     "localname": "DocumentQuarterlyReport",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_DocumentTransitionReport": {
     "auth_ref": [
      "r503"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Boolean flag that is true only for a form used as a transition report.",
        "label": "Document Transition Report",
        "terseLabel": "Document Transition Report"
       }
      }
     },
     "localname": "DocumentTransitionReport",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_DocumentType": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "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'.",
        "label": "Document Type",
        "terseLabel": "Document Type"
       }
      }
     },
     "localname": "DocumentType",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "submissionTypeItemType"
    },
    "dei_EntitiesTable": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Container to assemble all relevant information about each entity associated with the document instance",
        "label": "Entities [Table]",
        "terseLabel": "Entities [Table]"
       }
      }
     },
     "localname": "EntitiesTable",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "stringItemType"
    },
    "dei_EntityAddressAddressLine1": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Address Line 1 such as Attn, Building Name, Street Name",
        "label": "Entity Address, Address Line One",
        "terseLabel": "Entity Address, Address Line One"
       }
      }
     },
     "localname": "EntityAddressAddressLine1",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressCityOrTown": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Name of the City or Town",
        "label": "Entity Address, City or Town",
        "terseLabel": "Entity Address, City or Town"
       }
      }
     },
     "localname": "EntityAddressCityOrTown",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressPostalZipCode": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Code for the postal or zip code",
        "label": "Entity Address, Postal Zip Code",
        "terseLabel": "Entity Address, Postal Zip Code"
       }
      }
     },
     "localname": "EntityAddressPostalZipCode",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressStateOrProvince": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Name of the state or province.",
        "label": "Entity Address, State or Province",
        "terseLabel": "Entity Address, State or Province"
       }
      }
     },
     "localname": "EntityAddressStateOrProvince",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "stateOrProvinceItemType"
    },
    "dei_EntityCentralIndexKey": {
     "auth_ref": [
      "r504"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.",
        "label": "Entity Central Index Key",
        "terseLabel": "Entity Central Index Key"
       }
      }
     },
     "localname": "EntityCentralIndexKey",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "centralIndexKeyItemType"
    },
    "dei_EntityCommonStockSharesOutstanding": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Entity Common Stock, Shares Outstanding",
        "terseLabel": "Entity Common Stock, Shares Outstanding"
       }
      }
     },
     "localname": "EntityCommonStockSharesOutstanding",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "sharesItemType"
    },
    "dei_EntityCurrentReportingStatus": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Entity Current Reporting Status",
        "terseLabel": "Entity Current Reporting Status"
       }
      }
     },
     "localname": "EntityCurrentReportingStatus",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "yesNoItemType"
    },
    "dei_EntityEmergingGrowthCompany": {
     "auth_ref": [
      "r504"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Indicate if registrant meets the emerging growth company criteria.",
        "label": "Entity Emerging Growth Company",
        "terseLabel": "Entity Emerging Growth Company"
       }
      }
     },
     "localname": "EntityEmergingGrowthCompany",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_EntityFileNumber": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Entity File Number",
        "terseLabel": "Entity File Number"
       }
      }
     },
     "localname": "EntityFileNumber",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "fileNumberItemType"
    },
    "dei_EntityFilerCategory": {
     "auth_ref": [
      "r504"
     ],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Entity Filer Category",
        "terseLabel": "Entity Filer Category"
       }
      }
     },
     "localname": "EntityFilerCategory",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "filerCategoryItemType"
    },
    "dei_EntityIncorporationStateCountryCode": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Two-character EDGAR code representing the state or country of incorporation.",
        "label": "Entity Incorporation, State or Country Code",
        "terseLabel": "Entity Incorporation, State or Country Code"
       }
      }
     },
     "localname": "EntityIncorporationStateCountryCode",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "edgarStateCountryItemType"
    },
    "dei_EntityInformationLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Entity Information [Line Items]",
        "terseLabel": "Entity Information [Line Items]"
       }
      }
     },
     "localname": "EntityInformationLineItems",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "stringItemType"
    },
    "dei_EntityInteractiveDataCurrent": {
     "auth_ref": [
      "r505"
     ],
     "lang": {
      "en-US": {
       "role": {
        "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).",
        "label": "Entity Interactive Data Current",
        "terseLabel": "Entity Interactive Data Current"
       }
      }
     },
     "localname": "EntityInteractiveDataCurrent",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "yesNoItemType"
    },
    "dei_EntityRegistrantName": {
     "auth_ref": [
      "r504"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.",
        "label": "Entity Registrant Name",
        "terseLabel": "Entity Registrant Name"
       }
      }
     },
     "localname": "EntityRegistrantName",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityShellCompany": {
     "auth_ref": [
      "r504"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Boolean flag that is true when the registrant is a shell company as defined in Rule 12b-2 of the Exchange Act.",
        "label": "Entity Shell Company",
        "terseLabel": "Entity Shell Company"
       }
      }
     },
     "localname": "EntityShellCompany",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_EntitySmallBusiness": {
     "auth_ref": [
      "r504"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Indicates that the company is a Smaller Reporting Company (SRC).",
        "label": "Entity Small Business",
        "terseLabel": "Entity Small Business"
       }
      }
     },
     "localname": "EntitySmallBusiness",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_EntityTaxIdentificationNumber": {
     "auth_ref": [
      "r504"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.",
        "label": "Entity Tax Identification Number",
        "terseLabel": "Entity Tax Identification Number"
       }
      }
     },
     "localname": "EntityTaxIdentificationNumber",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "employerIdItemType"
    },
    "dei_LocalPhoneNumber": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Local phone number for entity.",
        "label": "Local Phone Number",
        "terseLabel": "Local Phone Number"
       }
      }
     },
     "localname": "LocalPhoneNumber",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_Security12bTitle": {
     "auth_ref": [
      "r500"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Title of a 12(b) registered security.",
        "label": "Title of 12(b) Security",
        "terseLabel": "Title of 12(b) Security"
       }
      }
     },
     "localname": "Security12bTitle",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "securityTitleItemType"
    },
    "dei_SecurityExchangeName": {
     "auth_ref": [
      "r501"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Name of the Exchange on which a security is registered.",
        "label": "Security Exchange Name",
        "terseLabel": "Security Exchange Name"
       }
      }
     },
     "localname": "SecurityExchangeName",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "edgarExchangeCodeItemType"
    },
    "dei_TradingSymbol": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Trading symbol of an instrument as listed on an exchange.",
        "label": "Trading Symbol",
        "terseLabel": "Trading Symbol"
       }
      }
     },
     "localname": "TradingSymbol",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "tradingSymbolItemType"
    },
    "pbct_AccumulatedNetUnrealizedGainLossOnSecuritiesTransferredFromAvailableForSaleToHeldToMaturityMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Accumulated Net Unrealized Gain Loss On Debt Securities Transferred From Available For Sale To Held To Maturity [Member]",
        "label": "Accumulated Net Unrealized Gain Loss On Securities Transferred From Available For Sale To Held To Maturity [Member]",
        "terseLabel": "Net Unrealized Gains (Losses) on\u00a0Debt Securities Transferred to Held-to-Maturity"
       }
      }
     },
     "localname": "AccumulatedNetUnrealizedGainLossOnSecuritiesTransferredFromAvailableForSaleToHeldToMaturityMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/StockholdersEquityScheduleofAccumulatedOtherComprehensiveLossDetail",
      "http://www.peoples.com/role/StockholdersEquitySummaryofAmountsReclassifiedfromAOCLDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_AdditionalAwardsUnderRecognitionRetentionPlan": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of shares of treasury stock available to be granted in the form of restricted stock under the provisions of the 2007 Recognition and Retention Plan.",
        "label": "Additional Awards Under Recognition Retention Plan",
        "terseLabel": "Additional awards under RRP (in shares)"
       }
      }
     },
     "localname": "AdditionalAwardsUnderRecognitionRetentionPlan",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/StockholdersEquityAdditionalInformationDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "pbct_AffordableHousingProjectsInvestmentAmortizationPeriod": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Period over which the cost of investments are amortized, which correlates to the period during which the related federal income tax credits are realized.",
        "label": "Investment Amortization Period",
        "terseLabel": "Amortization period"
       }
      }
     },
     "localname": "AffordableHousingProjectsInvestmentAmortizationPeriod",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/GeneralDetail"
     ],
     "xbrltype": "durationItemType"
    },
    "pbct_AmortizationAndDepreciationOfPremisesAndEquipment": {
     "auth_ref": [],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 14.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amortization And Depreciation Of Premises And Equipment",
        "label": "Amortization And Depreciation Of Premises And Equipment",
        "terseLabel": "Depreciation and amortization of premises and equipment"
       }
      }
     },
     "localname": "AmortizationAndDepreciationOfPremisesAndEquipment",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pbct_AssetsAndLiabilitiesLesseeTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Assets And Liabilities, Lessee",
        "label": "Assets And Liabilities, Lessee [Table Text Block]",
        "terseLabel": "Lease Right-of-use Assets and Liabilities"
       }
      }
     },
     "localname": "AssetsAndLiabilitiesLesseeTableTextBlock",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LeasesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "pbct_AverageCompensationTermWhichPensionPlanBenefitsAreBased": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Average compensation term which pension plan benefits are based.",
        "label": "Average Compensation Term Which Pension Plan Benefits Are Based",
        "terseLabel": "Average compensation term on which pension plan benefits are based, in years"
       }
      }
     },
     "localname": "AverageCompensationTermWhichPensionPlanBenefitsAreBased",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansEmployeePensionandOtherPostretirementPlansDetail"
     ],
     "xbrltype": "durationItemType"
    },
    "pbct_AverageCompensationTermWithinLastTenYearsWhichPensionPlanBenefitsAreBased": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Average compensation term within last ten years which pension plan benefits are based.",
        "label": "Average Compensation Term Within Last Ten Years Which Pension Plan Benefits Are Based",
        "terseLabel": "Average compensation term within last ten years on which pension plan benefits are based, in years"
       }
      }
     },
     "localname": "AverageCompensationTermWithinLastTenYearsWhichPensionPlanBenefitsAreBased",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansEmployeePensionandOtherPostretirementPlansDetail"
     ],
     "xbrltype": "durationItemType"
    },
    "pbct_BalanceSheetOffsettingDisclosureTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for balance sheet offsetting, including tabular disclosure of derivative and other financial assets and liabilities that are subject to offsetting, including master netting arrangements.",
        "label": "Balance Sheet Offsetting Disclosure [Text Block]",
        "terseLabel": "Balance Sheet Offsetting"
       }
      }
     },
     "localname": "BalanceSheetOffsettingDisclosureTextBlock",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsetting"
     ],
     "xbrltype": "textBlockItemType"
    },
    "pbct_BankruptcyMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Bankruptcy.",
        "label": "Bankruptcy [Member]",
        "terseLabel": "Bankruptcy"
       }
      }
     },
     "localname": "BankruptcyMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_BoardOfDirectorAuthorizedRepurchasesMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Board Of Director Authorized Repurchases [Member]",
        "label": "Board Of Director Authorized Repurchases [Member]",
        "terseLabel": "Repurchases Authorized by Board of Directors"
       }
      }
     },
     "localname": "BoardOfDirectorAuthorizedRepurchasesMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/StockholdersEquityAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_BorrowedFundsExcludingLongTermDebt": {
     "auth_ref": [],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 2.0,
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Sum of the carrying values as of the balance sheet date of all sources of borrowings, excluding notes and debentures.",
        "label": "Borrowed Funds Excluding Long Term Debt",
        "totalLabel": "Total borrowings"
       }
      }
     },
     "localname": "BorrowedFundsExcludingLongTermDebt",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pbct_BorrowerFicoCreditScoreThreshold": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Borrower credit score used in the risk characteristics of determining the allowance for loan losses for pools of smaller-balance, homogeneous loans.",
        "label": "Borrower Fico Credit Score Threshold",
        "terseLabel": "Borrower credit scores, minimum"
       }
      }
     },
     "localname": "BorrowerFicoCreditScoreThreshold",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "integerItemType"
    },
    "pbct_CashManagementFees": {
     "auth_ref": [],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 3.0,
       "parentTag": "us-gaap_NoninterestIncome",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Income related to commercial and business service charges.",
        "label": "Cash Management Fees",
        "terseLabel": "Cash management fees"
       }
      }
     },
     "localname": "CashManagementFees",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pbct_CheckingAndMoneyMarketDeposits": {
     "auth_ref": [],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 3.0,
       "parentTag": "us-gaap_Deposits",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of interest-bearing domestic money market demand and checking account deposit liabilities.",
        "label": "Checking And Money Market Deposits",
        "terseLabel": "Interest-bearing checking and money market"
       }
      }
     },
     "localname": "CheckingAndMoneyMarketDeposits",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pbct_CollateralSwapsMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Collateral Swaps Member.",
        "label": "Collateral Swaps [Member]",
        "terseLabel": "Collateral Swaps"
       }
      }
     },
     "localname": "CollateralSwapsMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofCollateralSwapsDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_CollateralValuesToLoanToValueRatioThreshold": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Collateral values/loan-to-value percentage used in the risk characteristics of determining the allowance for loan losses for pools of smaller-balance, homogeneous loans.",
        "label": "Collateral Values To Loan To Value Ratio Threshold",
        "terseLabel": "Collateral values/LTV ratios, minimum"
       }
      }
     },
     "localname": "CollateralValuesToLoanToValueRatioThreshold",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "percentItemType"
    },
    "pbct_CombinationOfConcessionsMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Combination of concessions.",
        "label": "Combination Of Concessions [Member]",
        "terseLabel": "Combination of Concessions"
       }
      }
     },
     "localname": "CombinationOfConcessionsMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_CommercialAndIndustrialMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Commercial and industrial.",
        "label": "Commercial And Industrial [Member]",
        "terseLabel": "Commercial and industrial"
       }
      }
     },
     "localname": "CommercialAndIndustrialMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited",
      "http://www.peoples.com/role/LoansAdditionalInformationDetail",
      "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail",
      "http://www.peoples.com/role/LoansSummaryofAgingInformationbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofCreditQualityIndicatorsbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofLoansbyLoanPortfolioSegmentandClassDetail",
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanSubsequentlyDefaultedDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_CommercialAndIndustrialWithMortgageWarehouseAssetBasedLendingMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Commercial And Industrial With Mortgage Warehouse/Asset Based Lending",
        "label": "Commercial And Industrial With Mortgage Warehouse/Asset Based Lending [Member]",
        "terseLabel": "Commercial and industrial"
       }
      }
     },
     "localname": "CommercialAndIndustrialWithMortgageWarehouseAssetBasedLendingMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited",
      "http://www.peoples.com/role/LoansSummaryofAgingInformationbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofCreditQualityIndicatorsbyClassofLoanDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_CommercialBankingLendingFees": {
     "auth_ref": [],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 2.0,
       "parentTag": "us-gaap_NoninterestIncome",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Lending fee income related to commercial loans.",
        "label": "Commercial Banking Lending Fees",
        "terseLabel": "Commercial banking lending fees"
       }
      }
     },
     "localname": "CommercialBankingLendingFees",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pbct_CommercialBankingMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Commercial banking.",
        "label": "Commercial Banking [Member]",
        "terseLabel": "Commercial Banking"
       }
      }
     },
     "localname": "CommercialBankingMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/GoodwillandOtherAcquisitionRelatedIntangibleAssetsAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_CommercialCustomersMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Commercial customers.",
        "label": "Commercial Customers [Member]",
        "terseLabel": "Commercial customers"
       }
      }
     },
     "localname": "CommercialCustomersMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesImpactonIncomeandAOCIDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_CommercialRealEstateLoanMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Commercial Real Estate Loan [Member]",
        "label": "Commercial Real Estate Loan [Member]",
        "terseLabel": "Commercial real estate"
       }
      }
     },
     "localname": "CommercialRealEstateLoanMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail",
      "http://www.peoples.com/role/LoansAdditionalInformationDetail",
      "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail",
      "http://www.peoples.com/role/LoansSummaryofAgingInformationbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofCreditQualityIndicatorsbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofLoansbyLoanPortfolioSegmentandClassDetail",
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanSubsequentlyDefaultedDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_ComponentsOfLoanPortfolioTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the aggregate carrying amount of all categories of loans and leases held in portfolio, net of unearned income, net of deferred loan fees or costs, and any direct principal charge-offs.",
        "label": "Components Of Loan Portfolio [Table Text Block]",
        "terseLabel": "Summary of Loans by Loan Portfolio Segment and Class"
       }
      }
     },
     "localname": "ComponentsOfLoanPortfolioTableTextBlock",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LoansTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "pbct_ComponentsOfNetPeriodicBenefitExpenseAndOtherAmountsTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the components of net periodic benefit (income) expense and other amounts recognized in other comprehensive income or loss.",
        "label": "Components Of Net Periodic Benefit Expense And Other Amounts [Table Text Block]",
        "terseLabel": "Components of Net Periodic Benefit (Income) Expense and Other Amounts"
       }
      }
     },
     "localname": "ComponentsOfNetPeriodicBenefitExpenseAndOtherAmountsTableTextBlock",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "pbct_ConsumerAndCommercialLoansMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Consumer And Commercial Loans",
        "label": "Consumer And Commercial Loans [Member]",
        "terseLabel": "Consumer And Commercial Loans"
       }
      }
     },
     "localname": "ConsumerAndCommercialLoansMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_CounterpartyAMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Counterparty A.",
        "label": "Counterparty A [Member]",
        "terseLabel": "Counterparty A"
       }
      }
     },
     "localname": "CounterpartyAMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_CounterpartyBMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Counterparty B.",
        "label": "Counterparty B [Member]",
        "terseLabel": "Counterparty B"
       }
      }
     },
     "localname": "CounterpartyBMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_CounterpartyCMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Counterparty C.",
        "label": "Counterparty C [Member]",
        "terseLabel": "Counterparty C"
       }
      }
     },
     "localname": "CounterpartyCMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_CounterpartyDMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Counterparty D.",
        "label": "Counterparty D [Member]",
        "terseLabel": "Counterparty D"
       }
      }
     },
     "localname": "CounterpartyDMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_CounterpartyEMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Counterparty E.",
        "label": "Counterparty E [Member]",
        "terseLabel": "Counterparty E"
       }
      }
     },
     "localname": "CounterpartyEMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_CumulativeEffectPeriodOfAdoptionAdjustedBalanceMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Cumulative Effect, Period Of Adoption, Adjusted Balance",
        "label": "Cumulative Effect, Period Of Adoption, Adjusted Balance [Member]",
        "terseLabel": "Cumulative Effect, Period Of Adoption, Adjusted Balance"
       }
      }
     },
     "localname": "CumulativeEffectPeriodOfAdoptionAdjustedBalanceMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/AllowanceForCreditLossesOffBalanceSheetDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_CumulativeEffectPeriodOfAdoptionAdjustmentMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Cumulative Effect, Period Of Adoption, Adjustment",
        "label": "Cumulative Effect, Period Of Adoption, Adjustment [Member]",
        "terseLabel": "Cumulative Effect, Period Of Adoption, Adjustment"
       }
      }
     },
     "localname": "CumulativeEffectPeriodOfAdoptionAdjustmentMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/AllowanceForCreditLossesOffBalanceSheetDetails",
      "http://www.peoples.com/role/NewAccountingStandardsDetails",
      "http://www.peoples.com/role/ScheduleofAllowanceForCreditLossesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_CumulativeEffectPeriodOfAdoptionAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Cumulative Effect, Period Of Adoption",
        "label": "Cumulative Effect, Period Of Adoption [Axis]",
        "terseLabel": "Cumulative Effect, Period Of Adoption [Axis]"
       }
      }
     },
     "localname": "CumulativeEffectPeriodOfAdoptionAxis",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/AllowanceForCreditLossesOffBalanceSheetDetails",
      "http://www.peoples.com/role/NewAccountingStandardsDetails",
      "http://www.peoples.com/role/ScheduleofAllowanceForCreditLossesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "pbct_CumulativeEffectPeriodOfAdoptionDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Cumulative Effect, Period Of Adoption",
        "label": "Cumulative Effect, Period Of Adoption [Domain]",
        "terseLabel": "Cumulative Effect, Period Of Adoption [Domain]"
       }
      }
     },
     "localname": "CumulativeEffectPeriodOfAdoptionDomain",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/AllowanceForCreditLossesOffBalanceSheetDetails",
      "http://www.peoples.com/role/NewAccountingStandardsDetails",
      "http://www.peoples.com/role/ScheduleofAllowanceForCreditLossesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_DebtSecuritiesAvailableForSaleAccruedInterestReceivable": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Debt Securities, Available-For-Sale, Accrued Interest Receivable",
        "label": "Debt Securities, Available-For-Sale, Accrued Interest Receivable",
        "terseLabel": "Accrued interest receivable, available-for-sale"
       }
      }
     },
     "localname": "DebtSecuritiesAvailableForSaleAccruedInterestReceivable",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pbct_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Debt Securities, Available-for-sale, Unrealized Loss Position",
        "label": "Debt Securities, Available-for-sale, Unrealized Loss Position [Abstract]",
        "terseLabel": "Available-for-sale, Fair Value"
       }
      }
     },
     "localname": "DebtSecuritiesAvailableForSaleUnrealizedLossPositionAbstract",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "pbct_DebtSecuritiesHeldToMaturityAccruedInterestReceivable": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Debt Securities, Held-To-Maturity, Accrued Interest Receivable",
        "label": "Debt Securities, Held-To-Maturity, Accrued Interest Receivable",
        "terseLabel": "Accrued interest receivable, held-to-maturity"
       }
      }
     },
     "localname": "DebtSecuritiesHeldToMaturityAccruedInterestReceivable",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pbct_DebtSecuritiesHeldToMaturityNetOfAllowanceForCreditLosses": {
     "auth_ref": [],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 5.0,
       "parentTag": "us-gaap_MarketableSecurities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Debt Securities, Held-To-Maturity, Net Of Allowance For Credit Losses",
        "label": "Debt Securities, Held-To-Maturity, Net Of Allowance For Credit Losses",
        "terseLabel": "Debt securities held-to-maturity, at amortized cost and net of allowance for credit losses of $1.9 million at March 31, 2020 (fair value of $4.07\u00a0billion and $4.02 billion)"
       }
      }
     },
     "localname": "DebtSecuritiesHeldToMaturityNetOfAllowanceForCreditLosses",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pbct_DebtSecuritiesInUnrealizedLossPositionsQualitativeDisclosureAverageContractualMaturityPeriod": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure regarding factors used to determine that the impairment of debt securities where cost exceeds fair value is not an other than temporary impairment (OTTI). This item contains disclosure of the average contractual maturity period of the debt securities determined to be temporarily impaired.",
        "label": "Debt Securities In Unrealized Loss Positions Qualitative Disclosure Average Contractual Maturity Period",
        "terseLabel": "Available for sale securities average maturity period"
       }
      }
     },
     "localname": "DebtSecuritiesInUnrealizedLossPositionsQualitativeDisclosureAverageContractualMaturityPeriod",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail"
     ],
     "xbrltype": "durationItemType"
    },
    "pbct_DiscountToImpairedLoans": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Discount rate which is used to reflect estimated costs to sell.",
        "label": "Discount To Impaired Loans",
        "terseLabel": "Discount to impaired loans"
       }
      }
     },
     "localname": "DiscountToImpairedLoans",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsAdditionalInformationDetail"
     ],
     "xbrltype": "percentItemType"
    },
    "pbct_EmployeeStockOwnershipPlanEsopDebtStructureRepaymentsAnnual": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The annual amount of cash to be provided by the employer through contributions or dividends that the ESOP uses in the period to repay debt and interest on the loan the parent entity made to the ESOP.",
        "label": "Employee Stock Ownership Plan ESOP Debt Structure Repayments Annual",
        "terseLabel": "Loan repayments expected annual through 2036"
       }
      }
     },
     "localname": "EmployeeStockOwnershipPlanEsopDebtStructureRepaymentsAnnual",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansEmployeeStockOwnershipPlanDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pbct_EquipmentFinancingMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A loan, whether secured or unsecured, to a company for equipment financing purposes.",
        "label": "Equipment Financing [Member]",
        "terseLabel": "Equipment financing"
       }
      }
     },
     "localname": "EquipmentFinancingMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited",
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited",
      "http://www.peoples.com/role/LoansAdditionalInformationDetail",
      "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail",
      "http://www.peoples.com/role/LoansSummaryofAgingInformationbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofCreditQualityIndicatorsbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofLoansbyLoanPortfolioSegmentandClassDetail",
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanSubsequentlyDefaultedDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_ExtensionOfTermOnTroubledDebtRestructuring": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The maximum extension of a loan's maturity period granted through loan modifications during the current period, in years.",
        "label": "Extension Of Term On Troubled Debt Restructuring",
        "terseLabel": "Duration of extension for payment deferral on TDRs, years"
       }
      }
     },
     "localname": "ExtensionOfTermOnTroubledDebtRestructuring",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "durationItemType"
    },
    "pbct_FederalReserveBankOfNewYorkMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Federal Reserve Bank of New York.",
        "label": "Federal Reserve Bank Of New York [Member]",
        "terseLabel": "Federal Reserve Bank of New York"
       }
      }
     },
     "localname": "FederalReserveBankOfNewYorkMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_FederalReserveBankStockPercentage": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Percentage of the Company's capital and surplus, forming the value of shares of Federal Reserve Bank capital stock the Company is required to purchase and hold.",
        "label": "Federal Reserve Bank Stock Percentage",
        "terseLabel": "Federal Reserve Bank stock percentage"
       }
      }
     },
     "localname": "FederalReserveBankStockPercentage",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail"
     ],
     "xbrltype": "percentItemType"
    },
    "pbct_FinancingReceivableAccruedInterest": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Financing Receivable, Accrued Interest",
        "label": "Financing Receivable, Accrued Interest",
        "terseLabel": "Financing receivable accrued interest"
       }
      }
     },
     "localname": "FinancingReceivableAccruedInterest",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pbct_FinancingReceivableNonaccrualOriginatedFiveOrMoreYearsBeforeLatestFiscalYear": {
     "auth_ref": [],
     "calculation": {
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail": {
       "order": 6.0,
       "parentTag": "us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Financing Receivable, Nonaccrual, Originated Five or More Years before Latest Fiscal Year",
        "label": "Financing Receivable, Nonaccrual, Originated Five or More Years before Latest Fiscal Year",
        "terseLabel": "Prior"
       }
      }
     },
     "localname": "FinancingReceivableNonaccrualOriginatedFiveOrMoreYearsBeforeLatestFiscalYear",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pbct_FinancingReceivableNonaccrualOriginatedFourYearsBeforeLatestFiscalYear": {
     "auth_ref": [],
     "calculation": {
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail": {
       "order": 5.0,
       "parentTag": "us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Financing Receivable, Nonaccrual, Originated Four Years before Latest Fiscal Year",
        "label": "Financing Receivable, Nonaccrual, Originated Four Years before Latest Fiscal Year",
        "terseLabel": "2016"
       }
      }
     },
     "localname": "FinancingReceivableNonaccrualOriginatedFourYearsBeforeLatestFiscalYear",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pbct_FinancingReceivableNonaccrualOriginatedInCurrentFiscalYear": {
     "auth_ref": [],
     "calculation": {
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail": {
       "order": 1.0,
       "parentTag": "us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Financing Receivable, Nonaccrual, Originated in Current Fiscal Year",
        "label": "Financing Receivable, Nonaccrual, Originated in Current Fiscal Year",
        "terseLabel": "2020"
       }
      }
     },
     "localname": "FinancingReceivableNonaccrualOriginatedInCurrentFiscalYear",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pbct_FinancingReceivableNonaccrualOriginatedInFiscalYearBeforeLatestFiscalYear": {
     "auth_ref": [],
     "calculation": {
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail": {
       "order": 2.0,
       "parentTag": "us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Financing Receivable, Nonaccrual, Originated in Fiscal Year before Latest Fiscal Year",
        "label": "Financing Receivable, Nonaccrual, Originated in Fiscal Year before Latest Fiscal Year",
        "terseLabel": "2019"
       }
      }
     },
     "localname": "FinancingReceivableNonaccrualOriginatedInFiscalYearBeforeLatestFiscalYear",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pbct_FinancingReceivableNonaccrualOriginatedThreeYearsBeforeLatestFiscalYear": {
     "auth_ref": [],
     "calculation": {
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail": {
       "order": 4.0,
       "parentTag": "us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Financing Receivable, Nonaccrual, Originated Three Years before Latest Fiscal Year",
        "label": "Financing Receivable, Nonaccrual, Originated Three Years before Latest Fiscal Year",
        "terseLabel": "2017"
       }
      }
     },
     "localname": "FinancingReceivableNonaccrualOriginatedThreeYearsBeforeLatestFiscalYear",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pbct_FinancingReceivableNonaccrualOriginatedTwoYearsBeforeLatestFiscalYear": {
     "auth_ref": [],
     "calculation": {
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail": {
       "order": 3.0,
       "parentTag": "us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Financing Receivable, Nonaccrual, Originated Two Years before Latest Fiscal Year",
        "label": "Financing Receivable, Nonaccrual, Originated Two Years before Latest Fiscal Year",
        "terseLabel": "2018"
       }
      }
     },
     "localname": "FinancingReceivableNonaccrualOriginatedTwoYearsBeforeLatestFiscalYear",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pbct_FinancingReceivableNonaccrualRevolving": {
     "auth_ref": [],
     "calculation": {
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail": {
       "order": 7.0,
       "parentTag": "us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Financing Receivable, Nonaccrual, Revolving",
        "label": "Financing Receivable, Nonaccrual, Revolving",
        "terseLabel": "Revolving Loans"
       }
      }
     },
     "localname": "FinancingReceivableNonaccrualRevolving",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pbct_FinancingReceivables30To89DaysPastDueMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Financing Receivables 30 To 89 Days Past Due [Member]",
        "label": "Financing Receivables 30 To 89 Days Past Due [Member]",
        "terseLabel": "30-89 Days"
       }
      }
     },
     "localname": "FinancingReceivables30To89DaysPastDueMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LoansSummaryofAgingInformationbyClassofLoanDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_FinancingReceivablesModificationsWithSubsequentDefaultTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of financing receivables modified as a trouble debt restructuring within the previous twelve months that subsequently defaulted.",
        "label": "Financing Receivables Modifications With Subsequent Default [Table Text Block]",
        "terseLabel": "Summary of Recorded Investments in TDRs by Class of Loan, Subsequently Defaulted"
       }
      }
     },
     "localname": "FinancingReceivablesModificationsWithSubsequentDefaultTableTextBlock",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LoansTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "pbct_FixedToFloatingRateOnCumulativePerpetualPreferredStockSeriesA001ParValuePerShareMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fixed-To-Floating Rate On-Cumulative Perpetual Preferred Stock, Series A, $0.01 Par Value Per Share",
        "label": "Fixed-To-Floating Rate On-Cumulative Perpetual Preferred Stock, Series A, $0.01 Par Value Per Share [Member]",
        "terseLabel": "Fixed-to-Floating Rate Non-Cumulative Perpetual Preferred Stock, Series A, $0.01 par value per share"
       }
      }
     },
     "localname": "FixedToFloatingRateOnCumulativePerpetualPreferredStockSeriesA001ParValuePerShareMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_ForeclosureAndBankruptcyMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Foreclosure and bankruptcy.",
        "label": "Foreclosure And Bankruptcy [Member]",
        "terseLabel": "Foreclosure or Bankruptcy"
       }
      }
     },
     "localname": "ForeclosureAndBankruptcyMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_ForeclosureMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Foreclosure.",
        "label": "Foreclosure [Member]",
        "terseLabel": "Foreclosure"
       }
      }
     },
     "localname": "ForeclosureMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_GoodwillAndOtherIntangibleAssetsLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Goodwill And Other Intangible Assets [Line Items]",
        "label": "Goodwill And Other Intangible Assets [Line Items]",
        "terseLabel": "Goodwill And Other Intangible Assets [Line Items]"
       }
      }
     },
     "localname": "GoodwillAndOtherIntangibleAssetsLineItems",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/GoodwillandOtherAcquisitionRelatedIntangibleAssetsAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "pbct_GoodwillAndOtherIntangibleAssetsTable": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Goodwill And Other Intangible Assets [Table]",
        "label": "Goodwill And Other Intangible Assets [Table]",
        "terseLabel": "Goodwill And Other Intangible Assets [Table]"
       }
      }
     },
     "localname": "GoodwillAndOtherIntangibleAssetsTable",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/GoodwillandOtherAcquisitionRelatedIntangibleAssetsAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "pbct_GovernmentGuarantees": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Recorded investment in financing receivables that are covered by a government guarantee as of the balance sheet date.",
        "label": "Government Guarantees",
        "terseLabel": "Government guarantees"
       }
      }
     },
     "localname": "GovernmentGuarantees",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pbct_HomeEquityAndOtherConsumerLoansMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Home equity and other consumer.",
        "label": "Home Equity And Other Consumer Loans [Member]",
        "terseLabel": "Home equity and other consumer"
       }
      }
     },
     "localname": "HomeEquityAndOtherConsumerLoansMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited",
      "http://www.peoples.com/role/LoansSummaryofLoansbyLoanPortfolioSegmentandClassDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_ImpairedLoansMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Impaired loans.",
        "label": "Impaired Loans [Member]",
        "terseLabel": "Impaired Loans"
       }
      }
     },
     "localname": "ImpairedLoansMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_InstitutionalCounterpartiesMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Institutional counterparties.",
        "label": "Institutional Counterparties [Member]",
        "terseLabel": "Institutional counterparties"
       }
      }
     },
     "localname": "InstitutionalCounterpartiesMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesImpactonIncomeandAOCIDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_InterestAndDividendIncomeLoansHeldForSale": {
     "auth_ref": [],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 4.0,
       "parentTag": "us-gaap_InterestAndDividendIncomeOperating",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Interest And Dividend Income, Loans Held-for-sale",
        "label": "Interest And Dividend Income, Loans Held-for-sale",
        "terseLabel": "Loans held-for-sale"
       }
      }
     },
     "localname": "InterestAndDividendIncomeLoansHeldForSale",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pbct_InterestAndFeeIncomeLoansCommercialAndIndustrial": {
     "auth_ref": [],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 4.0,
       "parentTag": "us-gaap_InterestAndFeeIncomeLoansAndLeases",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Interest And Fee Income, Loans, Commercial And Industrial",
        "label": "Interest And Fee Income, Loans, Commercial And Industrial",
        "terseLabel": "Commercial and industrial"
       }
      }
     },
     "localname": "InterestAndFeeIncomeLoansCommercialAndIndustrial",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pbct_InterestAndFeeIncomeLoansEquipmentFinancing": {
     "auth_ref": [],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 5.0,
       "parentTag": "us-gaap_InterestAndFeeIncomeLoansAndLeases",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Interest And Fee Income, Loans, Equipment Financing",
        "label": "Interest And Fee Income, Loans, Equipment Financing",
        "terseLabel": "Equipment financing"
       }
      }
     },
     "localname": "InterestAndFeeIncomeLoansEquipmentFinancing",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pbct_InterestRateCapsMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Interest rate caps.",
        "label": "Interest Rate Caps [Member]",
        "terseLabel": "Interest rate caps"
       }
      }
     },
     "localname": "InterestRateCapsMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesImpactonIncomeandAOCIDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_InterestRateLocksMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Interest rate locks.",
        "label": "Interest Rate Locks [Member]",
        "terseLabel": "Interest rate locks"
       }
      }
     },
     "localname": "InterestRateLocksMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/StockholdersEquitySummaryofAmountsReclassifiedfromAOCLDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_InterestRateMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Interest Rate [Member]",
        "label": "Interest Rate [Member]",
        "terseLabel": "Interest Rate Swaps/Caps"
       }
      }
     },
     "localname": "InterestRateMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_InvestmentIssuer1Axis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Investment Issuer1",
        "label": "Investment Issuer1 [Axis]",
        "terseLabel": "Investment Issuer [Axis]"
       }
      }
     },
     "localname": "InvestmentIssuer1Axis",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "pbct_InvestmentIssuer1Domain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Investment Issuer1",
        "label": "Investment Issuer1 [Domain]",
        "terseLabel": "Investment Issuer"
       }
      }
     },
     "localname": "InvestmentIssuer1Domain",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_LeaseCost1TableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Lease, Cost1",
        "label": "Lease, Cost1 [Table Text Block]",
        "terseLabel": "Lease Costs"
       }
      }
     },
     "localname": "LeaseCost1TableTextBlock",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LeasesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "pbct_LeaseLiabilitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Lease Liabilities",
        "label": "Lease Liabilities [Abstract]",
        "terseLabel": "Lease liabilities:"
       }
      }
     },
     "localname": "LeaseLiabilitiesAbstract",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LeasesCostandSupplementalInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "pbct_LeasePaymentsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Lease Payments",
        "label": "Lease Payments [Abstract]",
        "terseLabel": "Cash payments included in the measurement of lease liabilities:"
       }
      }
     },
     "localname": "LeasePaymentsAbstract",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LeasesCostandSupplementalInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "pbct_LeaseRightOfUseAssetsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Lease Right Of Use Assets",
        "label": "Lease Right Of Use Assets [Abstract]",
        "terseLabel": "Lease ROU assets:"
       }
      }
     },
     "localname": "LeaseRightOfUseAssetsAbstract",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LeasesCostandSupplementalInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "pbct_LeaseWeightedAverageDiscountRateAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Lease, Weighted Average Discount Rate",
        "label": "Lease, Weighted Average Discount Rate [Abstract]",
        "terseLabel": "Weighted-average discount rate:"
       }
      }
     },
     "localname": "LeaseWeightedAverageDiscountRateAbstract",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LeasesCostandSupplementalInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "pbct_LoanPeriod": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Period an impaired loan must demonstrate performance with the restructured terms of the loan agreement upon which it qualifies for return to accrual status.",
        "label": "Loan Period",
        "terseLabel": "Loan agreement"
       }
      }
     },
     "localname": "LoanPeriod",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "durationItemType"
    },
    "pbct_LoansNetLessImpairedLoans": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, less amount of investment in impaired financing receivable for which there is a related allowance for credit losses.",
        "label": "Loans Net Less Impaired Loans",
        "terseLabel": "Total loans, net"
       }
      }
     },
     "localname": "LoansNetLessImpairedLoans",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsFinancialInstrumentsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pbct_MaturityPeriodOfAvailableForSaleResidentialMortgageBackedSecuritiesPortfolio": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Average length of original maturity period of available for sale debt security portfolio.",
        "label": "Maturity Period Of Available For Sale Residential Mortgage Backed Securities Portfolio",
        "terseLabel": "Maturity period of available-for-sale residential mortgage-backed securities portfolio"
       }
      }
     },
     "localname": "MaturityPeriodOfAvailableForSaleResidentialMortgageBackedSecuritiesPortfolio",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsAdditionalInformationDetail"
     ],
     "xbrltype": "durationItemType"
    },
    "pbct_MaximumTemporaryInterestRateReductionOnTroubledDebtRestructurings": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Maximum temporary interest rate reduction utilized in troubled debt restructurings.",
        "label": "Maximum Temporary Interest Rate Reduction On Troubled Debt Restructurings",
        "terseLabel": "Temporary reduction of interest rate for TDRs, basis points"
       }
      }
     },
     "localname": "MaximumTemporaryInterestRateReductionOnTroubledDebtRestructurings",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "percentItemType"
    },
    "pbct_MinimumAgeRequirementToParticipateInQualifiedDefinedContributionsPlan": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The minimum age requirement, in years, to participate in the qualified defined contribution plan.",
        "label": "Minimum Age Requirement To Participate In Qualified Defined Contributions Plan",
        "terseLabel": "Minimum age requirement to participate in pension plan, years"
       }
      }
     },
     "localname": "MinimumAgeRequirementToParticipateInQualifiedDefinedContributionsPlan",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansEmployeePensionandOtherPostretirementPlansDetail"
     ],
     "xbrltype": "durationItemType"
    },
    "pbct_MinimumAgeToParticipateInEsop": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Minimum age, in years, to participate in the Employee Stock Ownership Plan.",
        "label": "Minimum Age To Participate In ESOP",
        "terseLabel": "Minimum age requirement to participate in ESOP"
       }
      }
     },
     "localname": "MinimumAgeToParticipateInEsop",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansEmployeeStockOwnershipPlanDetail"
     ],
     "xbrltype": "durationItemType"
    },
    "pbct_MinimumServiceRequirementToParticipateInPensionPlan": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The minimum service requirement, in hours within a year, to participate in the qualified defined contribution plan.",
        "label": "Minimum Service Requirement To Participate In Pension Plan",
        "terseLabel": "Minimum service hours per year requirement to participate in pension plan"
       }
      }
     },
     "localname": "MinimumServiceRequirementToParticipateInPensionPlan",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansEmployeePensionandOtherPostretirementPlansDetail"
     ],
     "xbrltype": "durationItemType"
    },
    "pbct_MinimumWorkExperienceWithin12MonthsOfHireNeededToParticipateInEsop": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Minimum amount of hours within in 12 months of hire needed to participate in ESOP.",
        "label": "Minimum Work Experience Within 12 Months Of Hire Needed To Participate In ESOP",
        "terseLabel": "Minimum work experience within 12 months of hire needed to participate in ESOP"
       }
      }
     },
     "localname": "MinimumWorkExperienceWithin12MonthsOfHireNeededToParticipateInEsop",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansEmployeeStockOwnershipPlanDetail"
     ],
     "xbrltype": "durationItemType"
    },
    "pbct_MortgageWarehouseAssetBasedLendingMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Mortgage Warehouse/Asset Based Lending",
        "label": "Mortgage Warehouse/Asset Based Lending [Member]",
        "terseLabel": "MWABL"
       }
      }
     },
     "localname": "MortgageWarehouseAssetBasedLendingMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LoansAdditionalInformationDetail",
      "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail",
      "http://www.peoples.com/role/LoansSummaryofAgingInformationbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofLoansbyLoanPortfolioSegmentandClassDetail",
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanSubsequentlyDefaultedDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_NumberOfDebtSecuritiesOwned": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of debt securities owned.",
        "label": "Number Of Debt Securities Owned",
        "terseLabel": "Number of debt securities owned"
       }
      }
     },
     "localname": "NumberOfDebtSecuritiesOwned",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail"
     ],
     "xbrltype": "integerItemType"
    },
    "pbct_NumberOfSegments": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of loan portfolio segments for the purposes of disclosures related to the credit quality of financing receivables and the allowance for loan losses.",
        "label": "Number Of Segments",
        "terseLabel": "Number of segments"
       }
      }
     },
     "localname": "NumberOfSegments",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "integerItemType"
    },
    "pbct_OffsettingAssetsAndLiabilitiesLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Offsetting assets and liabilities.",
        "label": "Offsetting Assets And Liabilities [Line Items]",
        "terseLabel": "Offsetting Assets And Liabilities [Line Items]"
       }
      }
     },
     "localname": "OffsettingAssetsAndLiabilitiesLineItems",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "pbct_OffsettingAssetsAndLiabilitiesTable": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Offsetting Assets And Liabilities [Table]",
        "label": "Offsetting Assets And Liabilities [Table]",
        "terseLabel": "Offsetting Assets And Liabilities [Table]"
       }
      }
     },
     "localname": "OffsettingAssetsAndLiabilitiesTable",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "pbct_OffsetttingAssetsandLiabilitiesLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Offsettting Assets and Liabilities [Line Items]",
        "label": "Offsettting Assets and Liabilities [Line Items]",
        "terseLabel": "Offsettting Assets and Liabilities [Line Items]"
       }
      }
     },
     "localname": "OffsetttingAssetsandLiabilitiesLineItems",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingAdditionalInformationDetail",
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofCollateralSwapsDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "pbct_OffsetttingAssetsandLiabilitiesTable": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Offsettting Assets and Liabilities [Table]",
        "label": "Offsettting Assets and Liabilities [Table]",
        "terseLabel": "Offsettting Assets and Liabilities [Table]"
       }
      }
     },
     "localname": "OffsetttingAssetsandLiabilitiesTable",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingAdditionalInformationDetail",
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofCollateralSwapsDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "pbct_OtherComprehensiveIncomeNetUnrealizedHoldingGainsLossesOnSecuritiesTransferredFromAvailableForSaleToHeldToMaturity": {
     "auth_ref": [],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofComprehensiveIncomeUnaudited": {
       "order": 3.0,
       "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Other comprehensive income net unrealized holding gains (losses) on securities transferred from available for sale to held to maturity.",
        "label": "Other Comprehensive Income Net Unrealized Holding Gains (Losses) On Securities Transferred From Available For Sale To Held To Maturity",
        "terseLabel": "Amortization of unrealized losses on debt securities transferred to held-to-maturity"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeNetUnrealizedHoldingGainsLossesOnSecuritiesTransferredFromAvailableForSaleToHeldToMaturity",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofComprehensiveIncomeUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pbct_OtherConsumerLoansMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Other consumer loans.",
        "label": "Other Consumer Loans [Member]",
        "terseLabel": "Other consumer"
       }
      }
     },
     "localname": "OtherConsumerLoansMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail",
      "http://www.peoples.com/role/LoansAdditionalInformationDetail",
      "http://www.peoples.com/role/LoansScheduleofRetailLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail",
      "http://www.peoples.com/role/LoansSummaryofAgingInformationbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofCreditQualityIndicatorsbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofLoansbyLoanPortfolioSegmentandClassDetail",
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanSubsequentlyDefaultedDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_OtherCounterPartyMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Other counter party.",
        "label": "Other Counter Party [Member]",
        "terseLabel": "Other Counterparties"
       }
      }
     },
     "localname": "OtherCounterPartyMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_OtherDeposits": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The aggregate of deposit liabilities held by the entity, (excludes Time deposits) including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW).",
        "label": "Other Deposits",
        "terseLabel": "Other deposits"
       }
      }
     },
     "localname": "OtherDeposits",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsFinancialInstrumentsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pbct_PaymentsForPrincipalDisbursementsOfLoans": {
     "auth_ref": [],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 16.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Payments For Principal Disbursements Of Loans",
        "label": "Payments For Principal Disbursements Of Loans",
        "negatedLabel": "Net principal disbursements of loans"
       }
      }
     },
     "localname": "PaymentsForPrincipalDisbursementsOfLoans",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pbct_PeoplesQualifiedPlanMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "People's Qualified Plan.",
        "label": "Peoples Qualified Plan [Member]",
        "terseLabel": "People's Qualified Plan"
       }
      }
     },
     "localname": "PeoplesQualifiedPlanMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansEmployeePensionandOtherPostretirementPlansDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_PeriodHedgedItemsAffectedEarnings": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Maximum period the entity is hedging its exposure to the variability in future cash flows for forecasted transaction.",
        "label": "Period Hedged Items Affected Earnings",
        "terseLabel": "Period hedged items affected earnings, years"
       }
      }
     },
     "localname": "PeriodHedgedItemsAffectedEarnings",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesAdditionalInformationDetail"
     ],
     "xbrltype": "durationItemType"
    },
    "pbct_RealEstateOwnedAndRepossessedAssetsMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Other real estate may include 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. Foreclosed assets include all assets obtained in full or partial satisfaction of a debt arrangement through foreclosure proceedings.",
        "label": "Real Estate Owned And Repossessed Assets [Member]",
        "terseLabel": "REO and Repossessed Assets"
       }
      }
     },
     "localname": "RealEstateOwnedAndRepossessedAssetsMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_RecognitionAndRetentionPlanMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Recognition and retention plan.",
        "label": "Recognition And Retention Plan [Member]",
        "terseLabel": "2007 Recognition and Retention Plan"
       }
      }
     },
     "localname": "RecognitionAndRetentionPlanMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/StockholdersEquityAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_ResidentialMortgageAdjustableRateMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Residential Mortgage Adjustable Rate [Member]",
        "label": "Residential Mortgage Adjustable Rate [Member]",
        "terseLabel": "Adjustable-rate"
       }
      }
     },
     "localname": "ResidentialMortgageAdjustableRateMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LoansSummaryofLoansbyLoanPortfolioSegmentandClassDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_ResidentialMortgageFixedRateMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Residential Mortgage Fixed Rate [Member]",
        "label": "Residential Mortgage Fixed Rate [Member]",
        "terseLabel": "Fixed-rate"
       }
      }
     },
     "localname": "ResidentialMortgageFixedRateMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LoansSummaryofLoansbyLoanPortfolioSegmentandClassDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_ResidentialMortgageLoanMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Residential Mortgage Loan [Member]",
        "label": "Residential Mortgage Loan [Member]",
        "terseLabel": "Residential mortgage"
       }
      }
     },
     "localname": "ResidentialMortgageLoanMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail",
      "http://www.peoples.com/role/LoansAdditionalInformationDetail",
      "http://www.peoples.com/role/LoansScheduleofRetailLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail",
      "http://www.peoples.com/role/LoansSummaryofAgingInformationbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofCreditQualityIndicatorsbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofLoansbyLoanPortfolioSegmentandClassDetail",
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanSubsequentlyDefaultedDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_RetailBankingMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Retail Banking [Member]",
        "label": "Retail Banking [Member]",
        "terseLabel": "Retail Banking"
       }
      }
     },
     "localname": "RetailBankingMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/GoodwillandOtherAcquisitionRelatedIntangibleAssetsAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_RetailPortfolioSegmentMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Portfolio segment of the company's total financing receivables related to residential and consumer financing receivables.",
        "label": "Retail Portfolio Segment [Member]",
        "terseLabel": "Retail"
       }
      }
     },
     "localname": "RetailPortfolioSegmentMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail",
      "http://www.peoples.com/role/LoansAdditionalInformationDetail",
      "http://www.peoples.com/role/LoansScheduleofRetailLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail",
      "http://www.peoples.com/role/LoansSummaryofAgingInformationbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofCreditQualityIndicatorsbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofLoansbyLoanPortfolioSegmentandClassDetail",
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanSubsequentlyDefaultedDetail",
      "http://www.peoples.com/role/ScheduleofAllowanceForCreditLossesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_RightOfUseAssetsObtainedInExchangeForLeaseAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Right Of Use Assets Obtained In Exchange For Lease",
        "label": "Right Of Use Assets Obtained In Exchange For Lease [Abstract]",
        "terseLabel": "ROU assets obtained in exchange for lessee:"
       }
      }
     },
     "localname": "RightOfUseAssetsObtainedInExchangeForLeaseAbstract",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LeasesCostandSupplementalInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "pbct_RiskBasedCapitalRatioIncreaseDecrease": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Risk Based Capital Ratio Increase Decrease",
        "label": "Risk Based Capital Ratio Increase Decrease",
        "negatedLabel": "Decrease in risk-based capital ratios"
       }
      }
     },
     "localname": "RiskBasedCapitalRatioIncreaseDecrease",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/NewAccountingStandardsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "pbct_RiskParticipationMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Agreements under which the entity may either assume or sell credit risk associated with a borrowers' performance under certain interest rate derivative contracts. In those instances in which the entity assumed credit risk, it is not a party to the derivative contract and entered into the risk participation agreement because it is also a party to the related loan agreement with the borrower. In those instances in which the entity sold credit risk, it is a party to the derivative contract and entered into the risk participation agreement because it sold a portion of the related loan.",
        "label": "Risk Participation [Member]",
        "terseLabel": "Risk Participation Agreements",
        "verboseLabel": "Risk participation agreements"
       }
      }
     },
     "localname": "RiskParticipationMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesImpactonIncomeandAOCIDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_SalestypeAndDirectFinancingLeaseUnearnedIncome": {
     "auth_ref": [],
     "calculation": {
      "http://www.peoples.com/role/LeasesNetInvestmentinLeaseFinancingReceivablesDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_NetInvestmentInLease",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Sales-type And Direct Financing Lease, Unearned Income",
        "label": "Sales-type And Direct Financing Lease, Unearned Income",
        "negatedTerseLabel": "Less: Unearned income"
       }
      }
     },
     "localname": "SalestypeAndDirectFinancingLeaseUnearnedIncome",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LeasesNetInvestmentinLeaseFinancingReceivablesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pbct_SalestypeAndDirectFinancingLeasesDeferredOriginationCosts": {
     "auth_ref": [],
     "calculation": {
      "http://www.peoples.com/role/LeasesNetInvestmentinLeaseFinancingReceivablesDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_NetInvestmentInLease",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Sales-type And Direct Financing Leases, Deferred Origination Costs",
        "label": "Sales-type And Direct Financing Leases, Deferred Origination Costs",
        "terseLabel": "Plus: Deferred origination costs"
       }
      }
     },
     "localname": "SalestypeAndDirectFinancingLeasesDeferredOriginationCosts",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LeasesNetInvestmentinLeaseFinancingReceivablesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pbct_SalestypeAndDirectFinancingLeasesNetInvestmentInLeasesTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Sales-type And Direct Financing Leases, Net Investment In Leases",
        "label": "Sales-type And Direct Financing Leases, Net Investment In Leases [Table Text Block]",
        "terseLabel": "Composition of Total Net Investment in Lease Financing Receivables"
       }
      }
     },
     "localname": "SalestypeAndDirectFinancingLeasesNetInvestmentInLeasesTableTextBlock",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LeasesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "pbct_SalestypeAndDirectFinancingLeasesUnguaranteedResidualAsset": {
     "auth_ref": [],
     "calculation": {
      "http://www.peoples.com/role/LeasesNetInvestmentinLeaseFinancingReceivablesDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Sales-type And Direct Financing Leases, Unguaranteed Residual Asset",
        "label": "Sales-type And Direct Financing Leases, Unguaranteed Residual Asset",
        "terseLabel": "Estimated residual value of leased assets"
       }
      }
     },
     "localname": "SalestypeAndDirectFinancingLeasesUnguaranteedResidualAsset",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LeasesNetInvestmentinLeaseFinancingReceivablesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pbct_ScheduleOfAvailableForSaleAndHeldToMaturitySecuritiesLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Schedule Of Available For Sale And Held To Maturity Securities [Line Items]",
        "label": "Schedule Of Available For Sale And Held To Maturity Securities [Line Items]",
        "terseLabel": "Schedule Of Available For Sale And Held To Maturity Securities [Line Items]"
       }
      }
     },
     "localname": "ScheduleOfAvailableForSaleAndHeldToMaturitySecuritiesLineItems",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "pbct_ScheduleOfHeldToMaturityAndAvailableForSaleSecuritiesTable": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Schedule Of Held To Maturity And Available For Sale Securities [Table]",
        "label": "Schedule Of Held To Maturity And Available For Sale Securities [Table]",
        "terseLabel": "Schedule Of Held To Maturity And Available For Sale Securities [Table]"
       }
      }
     },
     "localname": "ScheduleOfHeldToMaturityAndAvailableForSaleSecuritiesTable",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "pbct_ScheduleOfOffsettingOfCollateralSwapTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of collateral swap agreement, involving the exchange of collateral under simultaneous repurchase and resale agreements with the same financial institutional institution, which are subject to offsetting, including master netting arrangements.",
        "label": "Schedule of Offsetting of Collateral Swap [Table Text Block]",
        "terseLabel": "Summary of Collateral Swaps"
       }
      }
     },
     "localname": "ScheduleOfOffsettingOfCollateralSwapTableTextBlock",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "pbct_ScheduleOfOffsettingOfFinancialDerivativeAssetsAndLiabilitiesTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of derivative and other financial assets and liabilities that are subject to offsetting, including master netting arrangements.",
        "label": "Schedule Of Offsetting Of Financial Derivative Assets And Liabilities [Table Text Block]",
        "terseLabel": "Summary of Gross Presentation, Financial Instruments that are Eligible for Offset Not Offset in Consolidated Statement of Condition"
       }
      }
     },
     "localname": "ScheduleOfOffsettingOfFinancialDerivativeAssetsAndLiabilitiesTableTextBlock",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "pbct_ScheduleOfStockholdersEquityLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Schedule of stockholders equity.",
        "label": "Schedule Of Stockholders Equity [Line Items]",
        "terseLabel": "Schedule Of Stockholders Equity [Line Items]"
       }
      }
     },
     "localname": "ScheduleOfStockholdersEquityLineItems",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/StockholdersEquityAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "pbct_ScheduleOfStockholdersEquityTable": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Schedule Of Stockholders Equity [Table]",
        "label": "Schedule Of Stockholders Equity [Table]",
        "terseLabel": "Schedule Of Stockholders Equity [Table]"
       }
      }
     },
     "localname": "ScheduleOfStockholdersEquityTable",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/StockholdersEquityAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "pbct_SummaryOfSignificantAccountingPoliciesLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Summary of significant accounting policies.",
        "label": "Summary Of Significant Accounting Policies [Line Items]",
        "terseLabel": "Summary Of Significant Accounting Policies [Line Items]"
       }
      }
     },
     "localname": "SummaryOfSignificantAccountingPoliciesLineItems",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/NewAccountingStandardsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "pbct_SummaryOfSignificantAccountingPoliciesTable": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Summary Of Significant Accounting Policies [Table]",
        "label": "Summary Of Significant Accounting Policies [Table]",
        "terseLabel": "Summary Of Significant Accounting Policies [Table]"
       }
      }
     },
     "localname": "SummaryOfSignificantAccountingPoliciesTable",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/NewAccountingStandardsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "pbct_TermConsideredForDeterminingEmployeePensionBenefits": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Term considered for determining employee pension benefits.",
        "label": "Term Considered For Determining Employee Pension Benefits",
        "terseLabel": "Term considered when determining employee pension benefits, in years"
       }
      }
     },
     "localname": "TermConsideredForDeterminingEmployeePensionBenefits",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansEmployeePensionandOtherPostretirementPlansDetail"
     ],
     "xbrltype": "durationItemType"
    },
    "pbct_TroubledDebtRestructuringsMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Troubled debt restructurings.",
        "label": "Troubled Debt Restructurings [Member]",
        "terseLabel": "Troubled Debt Restructurings"
       }
      }
     },
     "localname": "TroubledDebtRestructuringsMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_TwoThousandFourteenLongTermIncentivePlanMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Two Thousand Fourteen Long Term Incentive Plan [Member]",
        "label": "Two Thousand Fourteen Long Term Incentive Plan [Member]",
        "terseLabel": "2014 Long-Term Incentive Plan"
       }
      }
     },
     "localname": "TwoThousandFourteenLongTermIncentivePlanMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/StockholdersEquityAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_UnallocatedEsopCommonStockMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Unallocated ESOP common stock.",
        "label": "Unallocated ESOP Common Stock [Member]",
        "terseLabel": "Unallocated ESOP Common Stock"
       }
      }
     },
     "localname": "UnallocatedEsopCommonStockMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofChangesinStockholdersEquityUnaudited"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_UnitedFinancialBancorpIncMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "United Financial Bancorp, Inc",
        "label": "United Financial Bancorp, Inc [Member]",
        "terseLabel": "United Financial Bancorp, Inc"
       }
      }
     },
     "localname": "UnitedFinancialBancorpIncMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_WealthManagementMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Peoples United Wealth Management.",
        "label": "Wealth Management [Member]",
        "terseLabel": "Wealth Management"
       }
      }
     },
     "localname": "WealthManagementMember",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/GoodwillandOtherAcquisitionRelatedIntangibleAssetsAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "pbct_WeightedAverageRemainingLeaseTermAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted Average Remaining Lease Term",
        "label": "Weighted Average Remaining Lease Term [Abstract]",
        "terseLabel": "Weighted-average remaining lease term (in years):"
       }
      }
     },
     "localname": "WeightedAverageRemainingLeaseTermAbstract",
     "nsuri": "http://www.peoples.com/20200331",
     "presentation": [
      "http://www.peoples.com/role/LeasesCostandSupplementalInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_ConsolidatedEntitiesAxis": {
     "auth_ref": [
      "r499"
     ],
     "lang": {
      "en-US": {
       "role": {
        "label": "Consolidated Entities [Axis]",
        "terseLabel": "Consolidated Entities [Axis]"
       }
      }
     },
     "localname": "ConsolidatedEntitiesAxis",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/StockholdersEquityAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_ConsolidatedEntitiesDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Consolidated Entities [Domain]",
        "terseLabel": "Consolidated Entities [Domain]"
       }
      }
     },
     "localname": "ConsolidatedEntitiesDomain",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/StockholdersEquityAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_CounterpartyNameAxis": {
     "auth_ref": [
      "r37",
      "r100"
     ],
     "lang": {
      "en-US": {
       "role": {
        "label": "Counterparty Name [Axis]",
        "terseLabel": "Counterparty Name [Axis]"
       }
      }
     },
     "localname": "CounterpartyNameAxis",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesImpactonIncomeandAOCIDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_FederalHomeLoanBankAdvancesBranchOfFHLBBankAxis": {
     "auth_ref": [
      "r464"
     ],
     "lang": {
      "en-US": {
       "role": {
        "label": "Federal Home Loan Bank Branch [Axis]",
        "terseLabel": "Federal Home Loan Bank Branch [Axis]"
       }
      }
     },
     "localname": "FederalHomeLoanBankAdvancesBranchOfFHLBBankAxis",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_FederalHomeLoanBankAdvancesBranchOfFHLBBankStateDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Federal Home Loan Bank Branch [Domain]",
        "terseLabel": "Federal Home Loan Bank Branch [Domain]"
       }
      }
     },
     "localname": "FederalHomeLoanBankAdvancesBranchOfFHLBBankStateDomain",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_FederalHomeLoanBankOfBostonMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Federal Home Loan Bank of Boston [Member]",
        "terseLabel": "FHLB of Boston"
       }
      }
     },
     "localname": "FederalHomeLoanBankOfBostonMember",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_FederalHomeLoanBankOfNewYorkMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Federal Home Loan Bank of New York [Member]",
        "terseLabel": "FHLB of New York"
       }
      }
     },
     "localname": "FederalHomeLoanBankOfNewYorkMember",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_MaximumMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Maximum [Member]",
        "terseLabel": "Maximum"
       }
      }
     },
     "localname": "MaximumMember",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesImpactonIncomeandAOCIDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAdditionalInformationDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail",
      "http://www.peoples.com/role/LoansAdditionalInformationDetail",
      "http://www.peoples.com/role/StockholdersEquitySummaryofAmountsReclassifiedfromAOCLDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_MinimumMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Minimum [Member]",
        "terseLabel": "Minimum"
       }
      }
     },
     "localname": "MinimumMember",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsAdditionalInformationDetail",
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_ParentCompanyMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Parent Company [Member]",
        "terseLabel": "People's United Financial, Inc."
       }
      }
     },
     "localname": "ParentCompanyMember",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/StockholdersEquityAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_ProductOrServiceAxis": {
     "auth_ref": [
      "r132",
      "r273",
      "r274",
      "r484",
      "r485"
     ],
     "lang": {
      "en-US": {
       "role": {
        "label": "Product and Service [Axis]",
        "terseLabel": "Product and Service [Axis]"
       }
      }
     },
     "localname": "ProductOrServiceAxis",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited",
      "http://www.peoples.com/role/LoansAdditionalInformationDetail",
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_ProductsAndServicesDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Product and Service [Domain]",
        "terseLabel": "Product and Service [Domain]"
       }
      }
     },
     "localname": "ProductsAndServicesDomain",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited",
      "http://www.peoples.com/role/LoansAdditionalInformationDetail",
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_RangeAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Statistical Measurement [Axis]",
        "terseLabel": "Range [Axis]"
       }
      }
     },
     "localname": "RangeAxis",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesImpactonIncomeandAOCIDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAdditionalInformationDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail",
      "http://www.peoples.com/role/LoansAdditionalInformationDetail",
      "http://www.peoples.com/role/StockholdersEquitySummaryofAmountsReclassifiedfromAOCLDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_RangeMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Statistical Measurement [Domain]",
        "terseLabel": "Range [Domain]"
       }
      }
     },
     "localname": "RangeMember",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesImpactonIncomeandAOCIDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAdditionalInformationDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail",
      "http://www.peoples.com/role/LoansAdditionalInformationDetail",
      "http://www.peoples.com/role/StockholdersEquitySummaryofAmountsReclassifiedfromAOCLDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_RepurchaseAgreementCounterpartyNameDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Counterparty Name [Domain]",
        "terseLabel": "Counterparty Name [Domain]"
       }
      }
     },
     "localname": "RepurchaseAgreementCounterpartyNameDomain",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesImpactonIncomeandAOCIDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AOCIAttributableToParentNetOfTaxRollForward": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
        "label": "AOCI Attributable to Parent, Net of Tax [Roll Forward]",
        "terseLabel": "AOCI Attributable to Parent, Net of Tax [Roll Forward]"
       }
      }
     },
     "localname": "AOCIAttributableToParentNetOfTaxRollForward",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/StockholdersEquityScheduleofAccumulatedOtherComprehensiveLossDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AccountingChangesAndErrorCorrectionsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Accounting Changes and Error Corrections [Abstract]"
       }
      }
     },
     "localname": "AccountingChangesAndErrorCorrectionsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_AccountingStandardsUpdate201613Member": {
     "auth_ref": [
      "r199"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Accounting Standards Update 2016-13 Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.",
        "label": "Accounting Standards Update 2016-13 [Member]",
        "terseLabel": "Accounting Standards Update 2016-13"
       }
      }
     },
     "localname": "AccountingStandardsUpdate201613Member",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/NewAccountingStandardsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AccountsNotesAndLoansReceivableLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Accounts, Notes, Loans and Financing Receivable [Line Items]",
        "terseLabel": "Accounts, Notes, Loans and Financing Receivable [Line Items]"
       }
      }
     },
     "localname": "AccountsNotesAndLoansReceivableLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansAdditionalInformationDetail",
      "http://www.peoples.com/role/LoansSummaryofLoansbyLoanPortfolioSegmentandClassDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis": {
     "auth_ref": [
      "r25"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of receivable.",
        "label": "Receivable Type [Axis]",
        "terseLabel": "Receivable Type [Axis]"
       }
      }
     },
     "localname": "AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansSummaryofCreditQualityIndicatorsbyClassofLoanDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember": {
     "auth_ref": [
      "r46",
      "r52",
      "r53",
      "r287",
      "r327"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Accumulated other comprehensive (income) loss related to defined benefit plans attributable to the parent.",
        "label": "Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]",
        "terseLabel": "Pension and Other Postretirement Plans"
       }
      }
     },
     "localname": "AccumulatedDefinedBenefitPlansAdjustmentMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/StockholdersEquityScheduleofAccumulatedOtherComprehensiveLossDetail",
      "http://www.peoples.com/role/StockholdersEquitySummaryofAmountsReclassifiedfromAOCLDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLossMember": {
     "auth_ref": [
      "r45",
      "r52",
      "r53",
      "r286",
      "r327"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Accumulated other comprehensive income (loss) related to gain (loss) component of defined benefit plans attributable to the parent.",
        "label": "Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member]",
        "terseLabel": "Net Actuarial Loss"
       }
      }
     },
     "localname": "AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLossMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/StockholdersEquitySummaryofAmountsReclassifiedfromAOCLDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AccumulatedGainLossNetCashFlowHedgeParentMember": {
     "auth_ref": [
      "r52",
      "r60",
      "r326"
     ],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]",
        "terseLabel": "Net\u00a0Unrealized Gains (Losses) on Derivatives Accounted\u00a0for\u00a0as Cash\u00a0Flow\u00a0Hedges"
       }
      }
     },
     "localname": "AccumulatedGainLossNetCashFlowHedgeParentMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/StockholdersEquityScheduleofAccumulatedOtherComprehensiveLossDetail",
      "http://www.peoples.com/role/StockholdersEquitySummaryofAmountsReclassifiedfromAOCLDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember": {
     "auth_ref": [
      "r42",
      "r43",
      "r44",
      "r52",
      "r53"
     ],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member]",
        "terseLabel": "Net Unrealized Gains (Losses) on Debt Securities Available-for-Sale"
       }
      }
     },
     "localname": "AccumulatedNetUnrealizedInvestmentGainLossMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/StockholdersEquityScheduleofAccumulatedOtherComprehensiveLossDetail",
      "http://www.peoples.com/role/StockholdersEquitySummaryofAmountsReclassifiedfromAOCLDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Accumulated Other Comprehensive Income (Loss) [Line Items]",
        "terseLabel": "Accumulated Other Comprehensive Income (Loss) [Line Items]"
       }
      }
     },
     "localname": "AccumulatedOtherComprehensiveIncomeLossLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/StockholdersEquityScheduleofAccumulatedOtherComprehensiveLossDetail",
      "http://www.peoples.com/role/StockholdersEquitySummaryofAmountsReclassifiedfromAOCLDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax": {
     "auth_ref": [
      "r50",
      "r51",
      "r52"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 6.0,
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.",
        "label": "Accumulated Other Comprehensive Income (Loss), Net of Tax",
        "terseLabel": "Accumulated other comprehensive loss"
       }
      }
     },
     "localname": "AccumulatedOtherComprehensiveIncomeLossNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccumulatedOtherComprehensiveIncomeLossTable": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of information about components of accumulated other comprehensive income (loss).",
        "label": "Accumulated Other Comprehensive Income (Loss) [Table]",
        "terseLabel": "Accumulated Other Comprehensive Income (Loss) [Table]"
       }
      }
     },
     "localname": "AccumulatedOtherComprehensiveIncomeLossTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/StockholdersEquityScheduleofAccumulatedOtherComprehensiveLossDetail",
      "http://www.peoples.com/role/StockholdersEquitySummaryofAmountsReclassifiedfromAOCLDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AccumulatedOtherComprehensiveIncomeMember": {
     "auth_ref": [
      "r49",
      "r52",
      "r53",
      "r327"
     ],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "AOCI Attributable to Parent [Member]",
        "terseLabel": "Accumulated Other Comprehensive Loss"
       }
      }
     },
     "localname": "AccumulatedOtherComprehensiveIncomeMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofChangesinStockholdersEquityUnaudited",
      "http://www.peoples.com/role/StockholdersEquityScheduleofAccumulatedOtherComprehensiveLossDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AdditionalPaidInCapitalCommonStock": {
     "auth_ref": [
      "r13"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 3.0,
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Additional Paid in Capital, Common Stock",
        "terseLabel": "Additional paid-in capital"
       }
      }
     },
     "localname": "AdditionalPaidInCapitalCommonStock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AdditionalPaidInCapitalMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Additional Paid-in Capital [Member]",
        "terseLabel": "Additional Paid-In Capital"
       }
      }
     },
     "localname": "AdditionalPaidInCapitalMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofChangesinStockholdersEquityUnaudited"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AdjustmentsForNewAccountingPronouncementsAxis": {
     "auth_ref": [
      "r106"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by new accounting pronouncement.",
        "label": "Adjustments for New Accounting Pronouncements [Axis]",
        "terseLabel": "Adjustments for New Accounting Pronouncements [Axis]"
       }
      }
     },
     "localname": "AdjustmentsForNewAccountingPronouncementsAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/NewAccountingStandardsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase (decrease) to additional paid-in capital (APIC) for recognition and exercise of award under share-based payment arrangement.",
        "label": "APIC, Share-based Payment Arrangement, Recognition and Exercise",
        "terseLabel": "Stock options exercised"
       }
      }
     },
     "localname": "AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofChangesinStockholdersEquityUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]",
        "terseLabel": "Adjustments to reconcile net income to net cash provided by (used in) operating activities:"
       }
      }
     },
     "localname": "AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AdvancesFromFederalHomeLoanBanks": {
     "auth_ref": [
      "r464"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 1.0,
       "parentTag": "pbct_BorrowedFundsExcludingLongTermDebt",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages.",
        "label": "Advances from Federal Home Loan Banks",
        "terseLabel": "Federal Home Loan Bank advances",
        "verboseLabel": "FHLB advances"
       }
      }
     },
     "localname": "AdvancesFromFederalHomeLoanBanks",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited",
      "http://www.peoples.com/role/FairValueMeasurementsFinancialInstrumentsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AllowanceForCreditLossAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Allowance for Credit Loss [Abstract]"
       }
      }
     },
     "localname": "AllowanceForCreditLossAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock": {
     "auth_ref": [
      "r142",
      "r208"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of allowance for credit loss on financing receivable.",
        "label": "Financing Receivable, Allowance for Credit Loss [Table Text Block]",
        "terseLabel": "Summary, by Loan Portfolio Segment, of Activity in Allowance for Loan Losses"
       }
      }
     },
     "localname": "AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/AllowanceForCreditLossesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_AllowanceForCreditLossesTextBlock": {
     "auth_ref": [
      "r162"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for allowance for credit losses.",
        "label": "Allowance for Credit Losses [Text Block]",
        "terseLabel": "Allowance for Credit Losses"
       }
      }
     },
     "localname": "AllowanceForCreditLossesTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/AllowanceForCreditLosses"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_AmortizationMethodQualifiedAffordableHousingProjectInvestments": {
     "auth_ref": [
      "r196"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of investment in qualified affordable housing projects.",
        "label": "Amortization Method Qualified Affordable Housing Project Investments",
        "terseLabel": "Affordable housing investments"
       }
      }
     },
     "localname": "AmortizationMethodQualifiedAffordableHousingProjectInvestments",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/GeneralDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization": {
     "auth_ref": [
      "r197"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of amortization expense of investment in qualified affordable housing projects.",
        "label": "Amortization Method Qualified Affordable Housing Project Investments, Amortization",
        "terseLabel": "Income tax expense"
       }
      }
     },
     "localname": "AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/GeneralDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AmortizationOfESOPAward": {
     "auth_ref": [
      "r309"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Value of shares committed to be released under an Employee Stock Ownership Plan (ESOP).",
        "label": "Amortization of ESOP Award",
        "terseLabel": "ESOP common stock committed to be released (note 9)"
       }
      }
     },
     "localname": "AmortizationOfESOPAward",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofChangesinStockholdersEquityUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AmortizationOfIntangibleAssets": {
     "auth_ref": [
      "r88",
      "r244",
      "r250"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 3.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      },
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 5.0,
       "parentTag": "us-gaap_NoninterestExpense",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Amortization of Intangible Assets",
        "terseLabel": "Amortization of other acquisition-related intangible assets",
        "verboseLabel": "Amortization of other acquisition-related intangible assets (note 8)"
       }
      }
     },
     "localname": "AmortizationOfIntangibleAssets",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited",
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited",
      "http://www.peoples.com/role/GoodwillandOtherAcquisitionRelatedIntangibleAssetsAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AmountRecognizedInNetPeriodicBenefitCostAndOtherComprehensiveIncomeLossBeforeTax": {
     "auth_ref": [
      "r297"
     ],
     "calculation": {
      "http://www.peoples.com/role/EmployeeBenefitPlansComponentsofNetPeriodicBenefitIncomeExpenseandOtherAmountsDetail": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount recognized in net periodic benefit cost (credit) and other comprehensive (income) loss.",
        "label": "Defined Benefit Plan, Amount Recognized in Net Periodic Benefit Cost (Credit) and Other Comprehensive (Income) Loss, before Tax",
        "totalLabel": "Total recognized in net periodic benefit (income) expense and other comprehensive income (loss)"
       }
      }
     },
     "localname": "AmountRecognizedInNetPeriodicBenefitCostAndOtherComprehensiveIncomeLossBeforeTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansComponentsofNetPeriodicBenefitIncomeExpenseandOtherAmountsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount": {
     "auth_ref": [
      "r124"
     ],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount",
        "terseLabel": "Anti-dilutive equity-based awards excluded from calculation of diluted EPS (in shares)"
       }
      }
     },
     "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EarningsPerCommonShareDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_Assets": {
     "auth_ref": [
      "r131",
      "r418",
      "r470"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.",
        "label": "Assets",
        "totalLabel": "Total assets"
       }
      }
     },
     "localname": "Assets",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AssetsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Assets [Abstract]",
        "terseLabel": "Assets"
       }
      }
     },
     "localname": "AssetsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AssetsFairValueAdjustment": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of addition (reduction) to the amount at which an asset could be incurred (settled) in a current transaction between willing parties.",
        "label": "Assets, Fair Value Adjustment",
        "terseLabel": "Fair value adjustments"
       }
      }
     },
     "localname": "AssetsFairValueAdjustment",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AssetsFairValueDisclosure": {
     "auth_ref": [
      "r358"
     ],
     "calculation": {
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      },
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.",
        "label": "Assets, Fair Value Disclosure",
        "totalLabel": "Fair value of total assets measured at fair value on a recurring basis"
       }
      }
     },
     "localname": "AssetsFairValueDisclosure",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AssetsSoldUnderAgreementsToRepurchaseAxis": {
     "auth_ref": [
      "r103"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by securities or other assets sold under repurchase agreements. Repurchase agreements are agreements under which the transferor (repo party) transfers a security to a transferee (repo counterparty or reverse party) in exchange for cash and concurrently agrees to reacquire that security at a future date for an amount equal to the cash exchanged plus a stipulated interest factor.",
        "label": "Securities or Other Assets Sold under Agreements to Repurchase [Axis]",
        "terseLabel": "Securities or Other Assets Sold under Agreements to Repurchase [Axis]"
       }
      }
     },
     "localname": "AssetsSoldUnderAgreementsToRepurchaseAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesAdditionalInformationDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AssetsSoldUnderAgreementsToRepurchaseTypeDomain": {
     "auth_ref": [
      "r103"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "This is the type of such assets (for example, US Treasury Obligations, US Government agency obligations and loans, and so forth). This item may be presented as an element in the table that is disclosed when the carrying amount (or market value, if higher than the carrying amount) of securities or other assets sold under repurchase agreements exceed 10 percent of total assets, as of the most recent balance sheet date.",
        "label": "Assets Sold under Agreements to Repurchase, Type [Domain]",
        "terseLabel": "Assets Sold under Agreements to Repurchase, Type [Domain]"
       }
      }
     },
     "localname": "AssetsSoldUnderAgreementsToRepurchaseTypeDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesAdditionalInformationDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax": {
     "auth_ref": [
      "r171"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "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).",
        "label": "Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax",
        "terseLabel": "Gross Unrealized Gains"
       }
      }
     },
     "localname": "AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAvailableforSaleandHeldtoMaturityDebtSecuritiesGainsLossesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax": {
     "auth_ref": [
      "r172"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "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).",
        "label": "Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax",
        "negatedLabel": "Gross Unrealized Losses",
        "terseLabel": "Available for sale securities unrealized losses"
       }
      }
     },
     "localname": "AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAvailableforSaleandHeldtoMaturityDebtSecuritiesGainsLossesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis": {
     "auth_ref": [
      "r168",
      "r227"
     ],
     "calculation": {
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "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).",
        "label": "Debt Securities, Available-for-sale, Amortized Cost",
        "totalLabel": "Amortized Cost"
       }
      }
     },
     "localname": "AvailableForSaleDebtSecuritiesAmortizedCostBasis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAvailableforSaleandHeldtoMaturityDebtSecuritiesGainsLossesDetail",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]",
        "terseLabel": "Available-for-sale, Unrealized Losses"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost": {
     "auth_ref": [
      "r177"
     ],
     "calculation": {
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail": {
       "order": 3.0,
       "parentTag": "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "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 fiscal year through tenth fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.",
        "label": "Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost",
        "terseLabel": "Available for Sale, Amortized Cost, After 5 but within 10 years"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue": {
     "auth_ref": [
      "r173",
      "r177",
      "r459"
     ],
     "calculation": {
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail": {
       "order": 3.0,
       "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtSecurities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "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 latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.",
        "label": "Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value",
        "terseLabel": "Available for Sale, Fair Value, After 5 but within 10 years"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost": {
     "auth_ref": [
      "r176"
     ],
     "calculation": {
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail": {
       "order": 2.0,
       "parentTag": "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "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 latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.",
        "label": "Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Amortized Cost",
        "terseLabel": "Available for Sale, Amortized Cost, After 1 but within 5 years"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue": {
     "auth_ref": [
      "r173",
      "r176",
      "r458"
     ],
     "calculation": {
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail": {
       "order": 2.0,
       "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtSecurities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "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 latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.",
        "label": "Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Fair Value",
        "terseLabel": "Available for Sale, Fair Value, After 1 but within 5 years"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost": {
     "auth_ref": [
      "r178"
     ],
     "calculation": {
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail": {
       "order": 4.0,
       "parentTag": "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "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 latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.",
        "label": "Debt Securities, Available-for-sale, Allocated and Single Maturity Date, Maturity, after 10 Years, Amortized Cost",
        "terseLabel": "Available for Sale, Amortized Cost, After 10 years"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue": {
     "auth_ref": [
      "r173",
      "r178",
      "r460"
     ],
     "calculation": {
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail": {
       "order": 4.0,
       "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtSecurities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "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 latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.",
        "label": "Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after 10 Years, Fair Value",
        "terseLabel": "Available for Sale, Fair Value, After 10 years"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost": {
     "auth_ref": [
      "r175"
     ],
     "calculation": {
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail": {
       "order": 1.0,
       "parentTag": "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amortized cost of investment in debt security measured at fair value with change recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in next fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.",
        "label": "Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Amortized Cost",
        "terseLabel": "Available for Sale, Amortized Cost, Within 1 year"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue": {
     "auth_ref": [
      "r173",
      "r175",
      "r457"
     ],
     "calculation": {
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail": {
       "order": 1.0,
       "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtSecurities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "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), maturing in next fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.",
        "label": "Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value",
        "terseLabel": "Available for Sale, Fair Value, Within 1 year"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesDebtSecurities": {
     "auth_ref": [
      "r163",
      "r169",
      "r227"
     ],
     "calculation": {
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      },
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 2.0,
       "parentTag": "us-gaap_MarketableSecurities",
       "weight": 1.0
      },
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail": {
       "order": 2.0,
       "parentTag": "us-gaap_AssetsFairValueDisclosure",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).",
        "label": "Debt Securities, Available-for-sale",
        "terseLabel": "Debt securities available-for-sale, at fair value",
        "totalLabel": "Available for Sale, Fair Value, Total",
        "verboseLabel": "Fair Value"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesDebtSecurities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAvailableforSaleandHeldtoMaturityDebtSecuritiesGainsLossesDetail",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail",
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesFairValueToAmortizedCostBasisAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]",
        "terseLabel": "Debt securities available-for-sale:"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesFairValueToAmortizedCostBasisAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAvailableforSaleandHeldtoMaturityDebtSecuritiesGainsLossesDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_BalanceSheetLocationAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by location on balance sheet (statement of financial position).",
        "label": "Balance Sheet Location [Axis]",
        "terseLabel": "Balance Sheet Location [Axis]"
       }
      }
     },
     "localname": "BalanceSheetLocationAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_BalanceSheetLocationDomain": {
     "auth_ref": [
      "r337",
      "r341"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Location in the balance sheet (statement of financial position).",
        "label": "Balance Sheet Location [Domain]",
        "terseLabel": "Balance Sheet Location [Domain]"
       }
      }
     },
     "localname": "BalanceSheetLocationDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_BankOwnedLifeInsurance": {
     "auth_ref": [
      "r428"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 5.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Bank Owned Life Insurance",
        "terseLabel": "Bank-owned life insurance"
       }
      }
     },
     "localname": "BankOwnedLifeInsurance",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_BusinessAcquisitionAcquireeDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Identification of the acquiree in a material business combination (or series of individually immaterial business combinations), which may include the name or other type of identification of the acquiree.",
        "label": "Business Acquisition, Acquiree [Domain]",
        "terseLabel": "Business Acquisition, Acquiree [Domain]"
       }
      }
     },
     "localname": "BusinessAcquisitionAcquireeDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_BusinessAcquisitionAxis": {
     "auth_ref": [
      "r317",
      "r318"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by business combination or series of individually immaterial business combinations.",
        "label": "Business Acquisition [Axis]",
        "terseLabel": "Business Acquisition [Axis]"
       }
      }
     },
     "localname": "BusinessAcquisitionAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount": {
     "auth_ref": [
      "r323"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes.",
        "label": "Business Acquisition, Goodwill, Expected Tax Deductible Amount",
        "terseLabel": "Tax deductible goodwill amount"
       }
      }
     },
     "localname": "BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/GoodwillandOtherAcquisitionRelatedIntangibleAssetsAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CarryingReportedAmountFairValueDisclosureMember": {
     "auth_ref": [
      "r372",
      "r373"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Measured as reported on the statement of financial position (balance sheet).",
        "label": "Reported Value Measurement [Member]",
        "terseLabel": "Carrying Amount"
       }
      }
     },
     "localname": "CarryingReportedAmountFairValueDisclosureMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsFinancialInstrumentsDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CashAndCashEquivalentsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Cash and Cash Equivalents [Abstract]"
       }
      }
     },
     "localname": "CashAndCashEquivalentsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_CashAndDueFromBanks": {
     "auth_ref": [
      "r416"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 2.0,
       "parentTag": "us-gaap_CashCashEquivalentsAndShortTermInvestments",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Cash and Due from Banks",
        "verboseLabel": "Cash and due from banks"
       }
      }
     },
     "localname": "CashAndDueFromBanks",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited",
      "http://www.peoples.com/role/FairValueMeasurementsFinancialInstrumentsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CashCashEquivalentsAndMarketableSecuritiesTextBlock": {
     "auth_ref": [
      "r2",
      "r194"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure of cash, cash equivalents, and debt and equity securities, including any unrealized or realized gain (loss).",
        "label": "Cash, Cash Equivalents, and Marketable Securities [Text Block]",
        "terseLabel": "Cash and Cash Equivalents and Securities"
       }
      }
     },
     "localname": "CashCashEquivalentsAndMarketableSecuritiesTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecurities"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_CashCashEquivalentsAndShortTermInvestments": {
     "auth_ref": [
      "r18"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 9.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Cash includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the customer may deposit additional funds at any time and effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid Investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Short-term investments, exclusive of cash equivalents, generally consist of marketable securities intended to be sold within one year (or the normal operating cycle if longer) and may include trading securities, available-for-sale securities, or held-to-maturity securities (if maturing within one year), as applicable.",
        "label": "Cash, Cash Equivalents, and Short-term Investments",
        "totalLabel": "Total cash and cash equivalents (note 2)"
       }
      }
     },
     "localname": "CashCashEquivalentsAndShortTermInvestments",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents": {
     "auth_ref": [
      "r84",
      "r90",
      "r97"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents",
        "periodEndLabel": "Cash and cash equivalents at end of period",
        "periodStartLabel": "Cash and cash equivalents at beginning of period"
       }
      }
     },
     "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect": {
     "auth_ref": [
      "r84",
      "r374"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect",
        "totalLabel": "Net increase (decrease) in cash and cash equivalents"
       }
      }
     },
     "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CashFlowHedgingMember": {
     "auth_ref": [
      "r334"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Hedge of the exposure to variability in the cash flows of a recognized asset or liability, or of a forecasted transaction, that is attributable to a particular risk.",
        "label": "Cash Flow Hedging [Member]",
        "terseLabel": "Cash\u00a0flow"
       }
      }
     },
     "localname": "CashFlowHedgingMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesAdditionalInformationDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesImpactonIncomeandAOCIDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ClassOfStockDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Share of stock differentiated by the voting rights the holder receives. Examples include, but are not limited to, common stock, redeemable preferred stock, nonredeemable preferred stock, and convertible stock.",
        "label": "Class of Stock [Domain]",
        "terseLabel": "Class of Stock [Domain]"
       }
      }
     },
     "localname": "ClassOfStockDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CollateralAxis": {
     "auth_ref": [
      "r222"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by category of collateral or no collateral.",
        "label": "Collateral [Axis]",
        "terseLabel": "Collateral [Axis]"
       }
      }
     },
     "localname": "CollateralAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsAdditionalInformationDetail",
      "http://www.peoples.com/role/FairValueMeasurementsFinancialInstrumentsDetail",
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_CollateralDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Pledge or no pledge of specific property to serve as protection against default.",
        "label": "Collateral [Domain]",
        "terseLabel": "Collateral [Domain]"
       }
      }
     },
     "localname": "CollateralDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsAdditionalInformationDetail",
      "http://www.peoples.com/role/FairValueMeasurementsFinancialInstrumentsDetail",
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CollateralPledgedMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Pledge of specific property to serve as protection against default.",
        "label": "Collateral Pledged [Member]",
        "terseLabel": "Collateral Pledged"
       }
      }
     },
     "localname": "CollateralPledgedMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsAdditionalInformationDetail",
      "http://www.peoples.com/role/FairValueMeasurementsFinancialInstrumentsDetail",
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CommercialLoanMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A loan, whether secured or unsecured, to a company for purposes such as seasonal working capital needs, inventory financing, equipment purchases and acquisitions.",
        "label": "Commercial Loan [Member]",
        "terseLabel": "Commercial Loan"
       }
      }
     },
     "localname": "CommercialLoanMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CommercialPortfolioSegmentMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Portfolio segment of the company's total financing receivables related to commercial receivables.",
        "label": "Commercial Portfolio Segment [Member]",
        "terseLabel": "Commercial"
       }
      }
     },
     "localname": "CommercialPortfolioSegmentMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail",
      "http://www.peoples.com/role/LoansAdditionalInformationDetail",
      "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail",
      "http://www.peoples.com/role/LoansSummaryofAgingInformationbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofCreditQualityIndicatorsbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofLoansbyLoanPortfolioSegmentandClassDetail",
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanSubsequentlyDefaultedDetail",
      "http://www.peoples.com/role/ScheduleofAllowanceForCreditLossesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CommitmentsAndContingencies": {
     "auth_ref": [
      "r22",
      "r260",
      "r433",
      "r475"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 3.0,
       "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur.",
        "label": "Commitments and Contingencies",
        "terseLabel": "Commitments and contingencies (notes 1, 5 and 10)"
       }
      }
     },
     "localname": "CommitmentsAndContingencies",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CommitmentsAndContingenciesDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Commitments and Contingencies Disclosure [Abstract]"
       }
      }
     },
     "localname": "CommitmentsAndContingenciesDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_CommitmentsAndContingenciesDisclosureTextBlock": {
     "auth_ref": [
      "r259",
      "r261"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for commitments and contingencies.",
        "label": "Commitments and Contingencies Disclosure [Text Block]",
        "terseLabel": "Legal Proceedings"
       }
      }
     },
     "localname": "CommitmentsAndContingenciesDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LegalProceedings"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_CommonStockDividendsPerShareCashPaid": {
     "auth_ref": [
      "r268"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Aggregate dividends paid during the period for each share of common stock outstanding.",
        "label": "Common Stock, Dividends, Per Share, Cash Paid",
        "terseLabel": "Cash dividends on common stock (USD per share)"
       }
      }
     },
     "localname": "CommonStockDividendsPerShareCashPaid",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofChangesinStockholdersEquityUnauditedParenthetical"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_CommonStockMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Stock that is subordinate to all other stock of the issuer.",
        "label": "Common Stock [Member]",
        "terseLabel": "Common Stock, $0.01 par value per share"
       }
      }
     },
     "localname": "CommonStockMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofChangesinStockholdersEquityUnaudited",
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CommonStockParOrStatedValuePerShare": {
     "auth_ref": [
      "r12"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Face amount or stated value per share of common stock.",
        "label": "Common Stock, Par or Stated Value Per Share",
        "terseLabel": "Common stock, par value (USD per share)"
       }
      }
     },
     "localname": "CommonStockParOrStatedValuePerShare",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnauditedParenthetical",
      "http://www.peoples.com/role/StockholdersEquityAdditionalInformationDetail"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_CommonStockSharesAuthorized": {
     "auth_ref": [
      "r12"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The maximum number of common shares permitted to be issued by an entity's charter and bylaws.",
        "label": "Common Stock, Shares Authorized",
        "terseLabel": "Common stock, shares authorized (in shares)"
       }
      }
     },
     "localname": "CommonStockSharesAuthorized",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnauditedParenthetical",
      "http://www.peoples.com/role/StockholdersEquityAdditionalInformationDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CommonStockSharesIssued": {
     "auth_ref": [
      "r12"
     ],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Common Stock, Shares, Issued",
        "terseLabel": "Common stock, shares issued (in shares)"
       }
      }
     },
     "localname": "CommonStockSharesIssued",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnauditedParenthetical",
      "http://www.peoples.com/role/StockholdersEquityAdditionalInformationDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CommonStockValue": {
     "auth_ref": [
      "r12"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 2.0,
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Common Stock, Value, Issued",
        "terseLabel": "Common stock ($0.01 par value; 1.95 billion shares authorized; 533.5 million shares and 532.8 million shares issued)"
       }
      }
     },
     "localname": "CommonStockValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CompensationAndRetirementDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Retirement Benefits [Abstract]"
       }
      }
     },
     "localname": "CompensationAndRetirementDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_ComprehensiveIncomeNetOfTax": {
     "auth_ref": [
      "r56",
      "r58",
      "r59"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofComprehensiveIncomeUnaudited": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Comprehensive Income (Loss), Net of Tax, Attributable to Parent",
        "totalLabel": "Total comprehensive income"
       }
      }
     },
     "localname": "ComprehensiveIncomeNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofComprehensiveIncomeUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CoreDepositsMember": {
     "auth_ref": [
      "r465"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Entity's long-term relationships with depositors, commonly known as core deposit intangibles, which are separate from the financial instruments themselves.",
        "label": "Core Deposits [Member]",
        "terseLabel": "Core Deposit Intangibles"
       }
      }
     },
     "localname": "CoreDepositsMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/GoodwillandOtherAcquisitionRelatedIntangibleAssetsAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CorporateDebtSecuritiesMember": {
     "auth_ref": [
      "r278",
      "r297",
      "r486"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Debt securities issued by domestic or foreign corporate business, banks and other entities with a promise of repayment.",
        "label": "Corporate Debt Securities [Member]",
        "terseLabel": "Corporate"
       }
      }
     },
     "localname": "CorporateDebtSecuritiesMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAvailableforSaleandHeldtoMaturityDebtSecuritiesGainsLossesDetail",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesDebtSecuritiesHeldtomaturityCreditQualityDetails",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CreditLossStatusAxis": {
     "auth_ref": [
      "r160",
      "r226",
      "r239"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by credit loss status of financial asset.",
        "label": "Credit Loss Status [Axis]",
        "terseLabel": "Credit Loss Status [Axis]"
       }
      }
     },
     "localname": "CreditLossStatusAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansSummaryofLoansbyLoanPortfolioSegmentandClassDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_CreditLossStatusDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Credit loss status of financial asset.",
        "label": "Credit Loss Status [Domain]",
        "terseLabel": "Credit Loss Status [Domain]"
       }
      }
     },
     "localname": "CreditLossStatusDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansSummaryofLoansbyLoanPortfolioSegmentandClassDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.",
        "label": "Cumulative Effect of New Accounting Principle in Period of Adoption",
        "terseLabel": "Transition adjustments related to adoption of new accounting standards"
       }
      }
     },
     "localname": "CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofChangesinStockholdersEquityUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CustomerRelatedIntangibleAssetsMember": {
     "auth_ref": [
      "r319"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Customer-related asset, including, but not limited to, customer lists, and noncontractual customer relationships.",
        "label": "Customer-Related Intangible Assets [Member]",
        "terseLabel": "Client Relationship"
       }
      }
     },
     "localname": "CustomerRelatedIntangibleAssetsMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/GoodwillandOtherAcquisitionRelatedIntangibleAssetsAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CustomerRelationshipsMember": {
     "auth_ref": [
      "r322"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Customer relationship that exists between an entity and its customer, for example, but not limited to, tenant relationships.",
        "label": "Customer Relationships [Member]",
        "terseLabel": "Trust relationships"
       }
      }
     },
     "localname": "CustomerRelationshipsMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/GoodwillandOtherAcquisitionRelatedIntangibleAssetsAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_DebtAndCapitalLeaseObligationsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Debt and Lease Obligation [Abstract]",
        "terseLabel": "Borrowings:"
       }
      }
     },
     "localname": "DebtAndCapitalLeaseObligationsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DebtInstrumentBasisSpreadOnVariableRate1": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Percentage points added to the reference rate to compute the variable rate on the debt instrument.",
        "label": "Debt Instrument, Basis Spread on Variable Rate",
        "terseLabel": "Basis points"
       }
      }
     },
     "localname": "DebtInstrumentBasisSpreadOnVariableRate1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesAdditionalInformationDetail"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_DebtInstrumentDescriptionOfVariableRateBasis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.",
        "label": "Debt Instrument, Description of Variable Rate Basis",
        "terseLabel": "LIBOR basis points"
       }
      }
     },
     "localname": "DebtInstrumentDescriptionOfVariableRateBasis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DebtInstrumentFaceAmount": {
     "auth_ref": [
      "r376",
      "r378"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Face (par) amount of debt instrument at time of issuance.",
        "label": "Debt Instrument, Face Amount",
        "terseLabel": "Senior notes issuance"
       }
      }
     },
     "localname": "DebtInstrumentFaceAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtSecuritiesAvailableForSaleAllowanceForCreditLoss": {
     "auth_ref": [
      "r170",
      "r227",
      "r235",
      "r236"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).",
        "label": "Debt Securities, Available-for-sale, Allowance for Credit Loss",
        "terseLabel": "Allowance for Credit Losses"
       }
      }
     },
     "localname": "DebtSecuritiesAvailableForSaleAllowanceForCreditLoss",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAvailableforSaleandHeldtoMaturityDebtSecuritiesGainsLossesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger": {
     "auth_ref": [
      "r193",
      "r233",
      "r238"
     ],
     "calculation": {
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail": {
       "order": 2.0,
       "parentTag": "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.",
        "label": "Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer",
        "terseLabel": "12 Months Or Longer"
       }
      }
     },
     "localname": "DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss": {
     "auth_ref": [
      "r193",
      "r233"
     ],
     "calculation": {
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail": {
       "order": 2.0,
       "parentTag": "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset.",
        "label": "Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss",
        "negatedTerseLabel": "12 Months Or Longer"
       }
      }
     },
     "localname": "DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months": {
     "auth_ref": [
      "r193",
      "r233",
      "r238"
     ],
     "calculation": {
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail": {
       "order": 1.0,
       "parentTag": "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.",
        "label": "Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months",
        "terseLabel": "Less Than 12 Months"
       }
      }
     },
     "localname": "DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss": {
     "auth_ref": [
      "r193",
      "r233"
     ],
     "calculation": {
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail": {
       "order": 1.0,
       "parentTag": "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.",
        "label": "Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss",
        "negatedLabel": "Less Than 12 Months"
       }
      }
     },
     "localname": "DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition": {
     "auth_ref": [
      "r190",
      "r229",
      "r238"
     ],
     "calculation": {
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position without allowance for credit loss.",
        "label": "Debt Securities, Available-for-sale, Unrealized Loss Position",
        "totalLabel": "Total"
       }
      }
     },
     "localname": "DebtSecuritiesAvailableForSaleUnrealizedLossPosition",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss": {
     "auth_ref": [
      "r191",
      "r230"
     ],
     "calculation": {
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.",
        "label": "Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss",
        "negatedTotalLabel": "Total",
        "terseLabel": "Debt securities with unrealized losses"
       }
      }
     },
     "localname": "DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionFairValueTableTextBlock": {
     "auth_ref": [
      "r189",
      "r232",
      "r238"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.",
        "label": "Debt Securities, Available-for-sale, Unrealized Loss Position, Fair Value [Table Text Block]",
        "terseLabel": "Continuous Unrealized Loss Position on Available-for-Sale and Held-to-Maturity Securities"
       }
      }
     },
     "localname": "DebtSecuritiesAvailableForSaleUnrealizedLossPositionFairValueTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions": {
     "auth_ref": [
      "r192",
      "r231"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.",
        "label": "Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions",
        "terseLabel": "Number of debt securities classified as available-for-sale"
       }
      }
     },
     "localname": "DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail"
     ],
     "xbrltype": "integerItemType"
    },
    "us-gaap_DebtSecuritiesHeldToMaturityAllowanceForCreditLoss": {
     "auth_ref": [
      "r181",
      "r200",
      "r203",
      "r207"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of allowance for credit loss for debt security measured at amortized cost (held-to-maturity).",
        "label": "Debt Securities, Held-to-maturity, Allowance for Credit Loss",
        "terseLabel": "Debt securities, allowance for credit loss",
        "verboseLabel": "Allowance for Credit Losses"
       }
      }
     },
     "localname": "DebtSecuritiesHeldToMaturityAllowanceForCreditLoss",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAvailableforSaleandHeldtoMaturityDebtSecuritiesGainsLossesDetail",
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnauditedParenthetical",
      "http://www.peoples.com/role/NewAccountingStandardsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtSecuritiesHeldToMaturityCreditQualityIndicatorTableTextBlock": {
     "auth_ref": [
      "r217"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of credit quality indicator for investment in debt security measured at amortized cost (held-to-maturity).",
        "label": "Debt Securities, Held-to-maturity, Credit Quality Indicator [Table Text Block]",
        "terseLabel": "Summary of debt securities, held to maturity, credit quality"
       }
      }
     },
     "localname": "DebtSecuritiesHeldToMaturityCreditQualityIndicatorTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_DebtSecuritiesHeldToMaturityNonaccrual": {
     "auth_ref": [
      "r210"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of investment in debt security measured at amortized cost (held-to-maturity) on nonaccrual status.",
        "label": "Debt Securities, Held-to-maturity, Nonaccrual",
        "terseLabel": "Debt securities, held-to-maturity nonaccrual"
       }
      }
     },
     "localname": "DebtSecuritiesHeldToMaturityNonaccrual",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses": {
     "auth_ref": [
      "r283",
      "r295",
      "r297"
     ],
     "calculation": {
      "http://www.peoples.com/role/EmployeeBenefitPlansComponentsofNetPeriodicBenefitIncomeExpenseandOtherAmountsDetail": {
       "order": 3.0,
       "parentTag": "us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan.",
        "label": "Defined Benefit Plan, Amortization of Gain (Loss)",
        "negatedTerseLabel": "Recognized net actuarial loss"
       }
      }
     },
     "localname": "DefinedBenefitPlanAmortizationOfGainsLosses",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansComponentsofNetPeriodicBenefitIncomeExpenseandOtherAmountsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedBenefitPlanDisclosureLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Defined Benefit Plan Disclosure [Line Items]",
        "terseLabel": "Defined Benefit Plan Disclosure [Line Items]"
       }
      }
     },
     "localname": "DefinedBenefitPlanDisclosureLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansComponentsofNetPeriodicBenefitIncomeExpenseandOtherAmountsDetail",
      "http://www.peoples.com/role/EmployeeBenefitPlansEmployeePensionandOtherPostretirementPlansDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets": {
     "auth_ref": [
      "r282",
      "r294",
      "r297"
     ],
     "calculation": {
      "http://www.peoples.com/role/EmployeeBenefitPlansComponentsofNetPeriodicBenefitIncomeExpenseandOtherAmountsDetail": {
       "order": 2.0,
       "parentTag": "us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Defined Benefit Plan, Expected Return (Loss) on Plan Assets",
        "negatedLabel": "Expected return on plan assets"
       }
      }
     },
     "localname": "DefinedBenefitPlanExpectedReturnOnPlanAssets",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansComponentsofNetPeriodicBenefitIncomeExpenseandOtherAmountsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedBenefitPlanInterestCost": {
     "auth_ref": [
      "r277",
      "r281",
      "r293",
      "r297"
     ],
     "calculation": {
      "http://www.peoples.com/role/EmployeeBenefitPlansComponentsofNetPeriodicBenefitIncomeExpenseandOtherAmountsDetail": {
       "order": 1.0,
       "parentTag": "us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cost recognized for passage of time related to defined benefit plan.",
        "label": "Defined Benefit Plan, Interest Cost",
        "terseLabel": "Interest cost"
       }
      }
     },
     "localname": "DefinedBenefitPlanInterestCost",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansComponentsofNetPeriodicBenefitIncomeExpenseandOtherAmountsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost": {
     "auth_ref": [
      "r280",
      "r292",
      "r297"
     ],
     "calculation": {
      "http://www.peoples.com/role/EmployeeBenefitPlansComponentsofNetPeriodicBenefitIncomeExpenseandOtherAmountsDetail": {
       "order": 1.0,
       "parentTag": "us-gaap_AmountRecognizedInNetPeriodicBenefitCostAndOtherComprehensiveIncomeLossBeforeTax",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of net periodic benefit cost (credit) for defined benefit plan.",
        "label": "Defined Benefit Plan, Net Periodic Benefit Cost (Credit)",
        "totalLabel": "Net periodic benefit (income) expense"
       }
      }
     },
     "localname": "DefinedBenefitPlanNetPeriodicBenefitCost",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansComponentsofNetPeriodicBenefitIncomeExpenseandOtherAmountsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1": {
     "auth_ref": [
      "r284",
      "r296"
     ],
     "calculation": {
      "http://www.peoples.com/role/EmployeeBenefitPlansComponentsofNetPeriodicBenefitIncomeExpenseandOtherAmountsDetail": {
       "order": 4.0,
       "parentTag": "us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of gain (loss) recognized in net periodic benefit (cost) credit from irrevocable action relieving primary responsibility for benefit obligation and eliminating risk related to obligation and assets used to effect settlement.",
        "label": "Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement",
        "negatedLabel": "Settlements"
       }
      }
     },
     "localname": "DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansComponentsofNetPeriodicBenefitIncomeExpenseandOtherAmountsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.",
        "label": "Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay",
        "terseLabel": "Percentage of covered employee's eligible compensation"
       }
      }
     },
     "localname": "DefinedContributionPlanEmployerMatchingContributionPercent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansEmployeePensionandOtherPostretirementPlansDetail"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_DepositAccountMember": {
     "auth_ref": [
      "r274"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Bank account at depository institution allowing money to be withdrawn or deposited by account holder.",
        "label": "Deposit Account [Member]",
        "terseLabel": "Bank service charges"
       }
      }
     },
     "localname": "DepositAccountMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_Deposits": {
     "auth_ref": [
      "r429"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 1.0,
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Deposits",
        "totalLabel": "Total deposits"
       }
      }
     },
     "localname": "Deposits",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DepositsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Deposits [Abstract]",
        "terseLabel": "Deposits:"
       }
      }
     },
     "localname": "DepositsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DepositsSavingsDeposits": {
     "auth_ref": [
      "r429"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 2.0,
       "parentTag": "us-gaap_Deposits",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of interest bearing deposits with no stated maturity, which may include passbook and statement savings accounts and money-market deposit accounts (MMDAs).",
        "label": "Deposits, Savings Deposits",
        "terseLabel": "Savings"
       }
      }
     },
     "localname": "DepositsSavingsDeposits",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement": {
     "auth_ref": [
      "r27"
     ],
     "calculation": {
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value, before 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 elected not to be offset.",
        "label": "Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement",
        "totalLabel": "Gross Amounts Recognized"
       }
      }
     },
     "localname": "DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeAssetFairValueGrossLiability": {
     "auth_ref": [
      "r28",
      "r40",
      "r339"
     ],
     "calculation": {
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail": {
       "order": 2.0,
       "parentTag": "us-gaap_DerivativeAssets",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value of liability associated with 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.",
        "label": "Derivative Asset, Fair Value, Gross Liability",
        "negatedLabel": "Gross Amount Offset"
       }
      }
     },
     "localname": "DerivativeAssetFairValueGrossLiability",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeAssetFairValueOfCollateral": {
     "auth_ref": [
      "r35"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value of securities received as collateral against derivative assets.",
        "label": "Derivative Asset, Fair Value of Collateral",
        "terseLabel": "Fair value of treasury securities"
       }
      }
     },
     "localname": "DerivativeAssetFairValueOfCollateral",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeAssetFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection": {
     "auth_ref": [
      "r33",
      "r36"
     ],
     "calculation": {
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value, after effects of master netting arrangements, deduction of assets not subject to a master netting arrangement and elected not to be offset, of 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, offset against an obligation to return collateral.",
        "label": "Derivative Asset, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election",
        "totalLabel": "Net Amount"
       }
      }
     },
     "localname": "DerivativeAssetFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeAssetNotOffsetPolicyElectionDeduction": {
     "auth_ref": [
      "r31",
      "r36"
     ],
     "calculation": {
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail": {
       "order": 1.0,
       "parentTag": "us-gaap_DerivativeAssetFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value of 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, elected not to be offset, deducted from derivative assets.",
        "label": "Derivative Asset, Not Offset, Policy Election Deduction",
        "negatedLabel": "Gross Amounts Not Offset, Financial Instruments"
       }
      }
     },
     "localname": "DerivativeAssetNotOffsetPolicyElectionDeduction",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeAssetNotSubjectToMasterNettingArrangement": {
     "auth_ref": [
      "r30",
      "r38"
     ],
     "calculation": {
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail": {
       "order": 1.0,
       "parentTag": "us-gaap_DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value of 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, not subject to a master netting arrangement.",
        "label": "Derivative Asset, Not Subject to Master Netting Arrangement",
        "terseLabel": "Gross Amounts Recognized"
       }
      }
     },
     "localname": "DerivativeAssetNotSubjectToMasterNettingArrangement",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeAssets": {
     "auth_ref": [
      "r29",
      "r34",
      "r371"
     ],
     "calculation": {
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail": {
       "order": 3.0,
       "parentTag": "us-gaap_DerivativeAssetFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Derivative Asset",
        "totalLabel": "Net Amount Presented"
       }
      }
     },
     "localname": "DerivativeAssets",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeAssetsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Derivative Asset [Abstract]",
        "terseLabel": "Financial assets:"
       }
      }
     },
     "localname": "DerivativeAssetsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DerivativeCollateralObligationToReturnCash": {
     "auth_ref": [
      "r32",
      "r36",
      "r352"
     ],
     "calculation": {
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail": {
       "order": 2.0,
       "parentTag": "us-gaap_DerivativeAssetFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of obligation to return cash collateral under master netting arrangements that have not been offset against derivative assets.",
        "label": "Derivative, Collateral, Obligation to Return Cash",
        "negatedLabel": "Gross Amounts Not Offset, Collateral"
       }
      }
     },
     "localname": "DerivativeCollateralObligationToReturnCash",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeCollateralRightToReclaimCash": {
     "auth_ref": [
      "r32",
      "r36",
      "r352"
     ],
     "calculation": {
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail": {
       "order": 2.0,
       "parentTag": "us-gaap_DerivativeLiabilityFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of right to receive cash collateral under master netting arrangements that have not been offset against derivative liabilities.",
        "label": "Derivative, Collateral, Right to Reclaim Cash",
        "negatedLabel": "Gross Amounts Not Offset, Collateral"
       }
      }
     },
     "localname": "DerivativeCollateralRightToReclaimCash",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeContractTypeDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Derivative Contract [Domain]",
        "terseLabel": "Derivative Contract [Domain]"
       }
      }
     },
     "localname": "DerivativeContractTypeDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesAdditionalInformationDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesImpactonIncomeandAOCIDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail",
      "http://www.peoples.com/role/StockholdersEquitySummaryofAmountsReclassifiedfromAOCLDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_DerivativeDescriptionOfHedgedItem": {
     "auth_ref": [
      "r329"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Description of the hedged item related to the derivative. Includes the type of instrument hedged, contract amount, term, and so forth.",
        "label": "Derivative, Description of Hedged Item",
        "terseLabel": "Derivative instruments hedge description"
       }
      }
     },
     "localname": "DerivativeDescriptionOfHedgedItem",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DerivativeFairValueOfDerivativeAsset": {
     "auth_ref": [
      "r27",
      "r39",
      "r339",
      "r409"
     ],
     "calculation": {
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail": {
       "order": 1.0,
       "parentTag": "us-gaap_DerivativeAssets",
       "weight": 1.0
      },
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail": {
       "order": 2.0,
       "parentTag": "us-gaap_DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement",
       "weight": 1.0
      },
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail": {
       "order": 4.0,
       "parentTag": "us-gaap_AssetsFairValueDisclosure",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value, before 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 elected not to be offset. Excludes assets not subject to a master netting arrangement.",
        "label": "Derivative Asset, Fair Value, Gross Asset",
        "terseLabel": "Gross Amount Recognized",
        "verboseLabel": "Derivative assets"
       }
      }
     },
     "localname": "DerivativeFairValueOfDerivativeAsset",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeFairValueOfDerivativeLiability": {
     "auth_ref": [
      "r27",
      "r39",
      "r339",
      "r409"
     ],
     "calculation": {
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail": {
       "order": 2.0,
       "parentTag": "us-gaap_DerivativeLiabilities",
       "weight": 1.0
      },
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail": {
       "order": 1.0,
       "parentTag": "us-gaap_DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value, before 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 elected not to be offset. Excludes liabilities not subject to a master netting arrangement.",
        "label": "Derivative Liability, Fair Value, Gross Liability",
        "terseLabel": "Financial liabilities",
        "verboseLabel": "Gross Amount Recognized"
       }
      }
     },
     "localname": "DerivativeFairValueOfDerivativeLiability",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeInstrumentRiskAxis": {
     "auth_ref": [
      "r338",
      "r340",
      "r343",
      "r347"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of derivative contract.",
        "label": "Derivative Instrument [Axis]",
        "terseLabel": "Derivative Instrument [Axis]"
       }
      }
     },
     "localname": "DerivativeInstrumentRiskAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesAdditionalInformationDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesImpactonIncomeandAOCIDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail",
      "http://www.peoples.com/role/StockholdersEquitySummaryofAmountsReclassifiedfromAOCLDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Derivative Instruments and Hedging Activities Disclosure [Abstract]"
       }
      }
     },
     "localname": "DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock": {
     "auth_ref": [
      "r357"
     ],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Derivative Instruments and Hedging Activities Disclosure [Text Block]",
        "terseLabel": "Derivative Financial Instruments and Hedging Activities"
       }
      }
     },
     "localname": "DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivities"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Derivative Instruments and Hedging Activities Disclosures [Line Items]",
        "terseLabel": "Derivative Instruments and Hedging Activities Disclosures [Line Items]"
       }
      }
     },
     "localname": "DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesImpactonIncomeandAOCIDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresTable": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of information about derivatives and hedging activities.",
        "label": "Derivative Instruments and Hedging Activities Disclosures [Table]",
        "terseLabel": "Derivative Instruments and Hedging Activities Disclosures [Table]"
       }
      }
     },
     "localname": "DerivativeInstrumentsAndHedgingActivitiesDisclosuresTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesImpactonIncomeandAOCIDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis": {
     "auth_ref": [
      "r335",
      "r338",
      "r343"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of hedging relationship.",
        "label": "Hedging Relationship [Axis]",
        "terseLabel": "Hedging Relationship [Axis]"
       }
      }
     },
     "localname": "DerivativeInstrumentsGainLossByHedgingRelationshipAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesAdditionalInformationDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesImpactonIncomeandAOCIDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DerivativeLiabilities": {
     "auth_ref": [
      "r29",
      "r34",
      "r371"
     ],
     "calculation": {
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail": {
       "order": 1.0,
       "parentTag": "us-gaap_DerivativeLiabilityFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Derivative Liability",
        "totalLabel": "Net Amount Presented"
       }
      }
     },
     "localname": "DerivativeLiabilities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeLiabilitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Derivative Liability [Abstract]",
        "terseLabel": "Financial liabilities:"
       }
      }
     },
     "localname": "DerivativeLiabilitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DerivativeLiabilityFairValueGrossAsset": {
     "auth_ref": [
      "r28",
      "r40",
      "r339"
     ],
     "calculation": {
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail": {
       "order": 1.0,
       "parentTag": "us-gaap_DerivativeLiabilities",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value of asset associated with 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.",
        "label": "Derivative Liability, Fair Value, Gross Asset",
        "negatedLabel": "Gross Amount Offset"
       }
      }
     },
     "localname": "DerivativeLiabilityFairValueGrossAsset",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement": {
     "auth_ref": [
      "r27"
     ],
     "calculation": {
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value, before 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 elected not to be offset.",
        "label": "Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement",
        "totalLabel": "Financial liabilities"
       }
      }
     },
     "localname": "DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeLiabilityFairValueOfCollateral": {
     "auth_ref": [
      "r35"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value of securities pledged as collateral against derivative liabilities.",
        "label": "Derivative Liability, Fair Value of Collateral",
        "terseLabel": "Fair value of treasury securities"
       }
      }
     },
     "localname": "DerivativeLiabilityFairValueOfCollateral",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeLiabilityFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection": {
     "auth_ref": [
      "r33",
      "r36"
     ],
     "calculation": {
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value, after effects of master netting arrangements, deduction of liabilities not subject to a master netting arrangement and elected not to be offset, of 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, offset against the right to receive collateral.",
        "label": "Derivative Liability, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election",
        "totalLabel": "Net Amount"
       }
      }
     },
     "localname": "DerivativeLiabilityFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeLiabilityNotOffsetPolicyElectionDeduction": {
     "auth_ref": [
      "r31",
      "r36"
     ],
     "calculation": {
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail": {
       "order": 3.0,
       "parentTag": "us-gaap_DerivativeLiabilityFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value of 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, elected not to be offset, deducted from derivative liabilities.",
        "label": "Derivative Liability, Not Offset, Policy Election Deduction",
        "negatedLabel": "Gross Amounts Not Offset, Financial Instruments"
       }
      }
     },
     "localname": "DerivativeLiabilityNotOffsetPolicyElectionDeduction",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeLiabilityNotSubjectToMasterNettingArrangement": {
     "auth_ref": [
      "r30",
      "r38"
     ],
     "calculation": {
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail": {
       "order": 2.0,
       "parentTag": "us-gaap_DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value of 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, not subject to a master netting arrangement.",
        "label": "Derivative Liability, Not Subject to Master Netting Arrangement",
        "terseLabel": "Financial liabilities"
       }
      }
     },
     "localname": "DerivativeLiabilityNotSubjectToMasterNettingArrangement",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Derivative [Line Items]",
        "terseLabel": "Derivative [Line Items]"
       }
      }
     },
     "localname": "DerivativeLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DerivativeNotionalAmount": {
     "auth_ref": [
      "r330",
      "r332"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Nominal or face amount used to calculate payment on derivative.",
        "label": "Derivative, Notional Amount",
        "terseLabel": "Notional amounts of derivatives",
        "verboseLabel": "Notional Amounts"
       }
      }
     },
     "localname": "DerivativeNotionalAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesAdditionalInformationDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeTable": {
     "auth_ref": [
      "r104",
      "r329",
      "r331",
      "r332",
      "r335",
      "r336",
      "r342",
      "r343",
      "r351",
      "r353",
      "r355"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Schedule that describes and identifies a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item.",
        "label": "Derivative [Table]",
        "terseLabel": "Derivative [Table]"
       }
      }
     },
     "localname": "DerivativeTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DesignatedAsHedgingInstrumentMember": {
     "auth_ref": [
      "r335"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Derivative instrument designated as hedging instrument under Generally Accepted Accounting Principles (GAAP).",
        "label": "Designated as Hedging Instrument [Member]",
        "terseLabel": "Derivatives Designated as Hedging Instruments"
       }
      }
     },
     "localname": "DesignatedAsHedgingInstrumentMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesAdditionalInformationDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesImpactonIncomeandAOCIDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_DirectFinancingLeaseLeaseReceivable": {
     "auth_ref": [
      "r403"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesNetInvestmentinLeaseFinancingReceivablesDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Present value of lease payments not yet received by lessor and amount expected to be derived from underlying asset, following end of lease term, guaranteed by lessee or other third party unrelated to lessor, from direct financing lease.",
        "label": "Direct Financing Lease, Lease Receivable",
        "terseLabel": "Lease payments receivable"
       }
      }
     },
     "localname": "DirectFinancingLeaseLeaseReceivable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesNetInvestmentinLeaseFinancingReceivablesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DividendsCommonStockCash": {
     "auth_ref": [
      "r268"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.",
        "label": "Dividends, Common Stock, Cash",
        "negatedLabel": "Cash dividends on common stock"
       }
      }
     },
     "localname": "DividendsCommonStockCash",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofChangesinStockholdersEquityUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DividendsPreferredStockCash": {
     "auth_ref": [
      "r268",
      "r462"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of paid and unpaid preferred stock dividends declared with the form of settlement in cash.",
        "label": "Dividends, Preferred Stock, Cash",
        "negatedLabel": "Cash dividend on preferred stock"
       }
      }
     },
     "localname": "DividendsPreferredStockCash",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofChangesinStockholdersEquityUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DoubtfulMember": {
     "auth_ref": [
      "r146",
      "r217"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A category of financing receivables that have all the weaknesses inherent in those classified as substandard, with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable.",
        "label": "Doubtful [Member]",
        "terseLabel": "Doubtful"
       }
      }
     },
     "localname": "DoubtfulMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansSummaryofCreditQualityIndicatorsbyClassofLoanDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_EarningsPerShareAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Earnings Per Share [Abstract]",
        "terseLabel": "Earnings per common share (note 5):"
       }
      }
     },
     "localname": "EarningsPerShareAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_EarningsPerShareBasic": {
     "auth_ref": [
      "r65",
      "r107",
      "r113",
      "r117",
      "r121",
      "r122",
      "r126",
      "r441",
      "r477"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.",
        "label": "Earnings Per Share, Basic",
        "terseLabel": "Basic (USD per share)"
       }
      }
     },
     "localname": "EarningsPerShareBasic",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited",
      "http://www.peoples.com/role/EarningsPerCommonShareDetail"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_EarningsPerShareBasicAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Earnings Per Share, Basic [Abstract]",
        "terseLabel": "EPS:"
       }
      }
     },
     "localname": "EarningsPerShareBasicAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EarningsPerCommonShareDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_EarningsPerShareBasicAndDilutedAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Earnings Per Share, Basic and Diluted [Abstract]",
        "terseLabel": "Earnings per common share (note 7):"
       }
      }
     },
     "localname": "EarningsPerShareBasicAndDilutedAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_EarningsPerShareDiluted": {
     "auth_ref": [
      "r65",
      "r107",
      "r113",
      "r117",
      "r121",
      "r122",
      "r126",
      "r441",
      "r477"
     ],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Earnings Per Share, Diluted",
        "terseLabel": "Diluted (USD per share)"
       }
      }
     },
     "localname": "EarningsPerShareDiluted",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited",
      "http://www.peoples.com/role/EarningsPerCommonShareDetail"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_EarningsPerShareTextBlock": {
     "auth_ref": [
      "r127"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for earnings per share.",
        "label": "Earnings Per Share [Text Block]",
        "terseLabel": "Earnings Per Common Share"
       }
      }
     },
     "localname": "EarningsPerShareTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EarningsPerCommonShare"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_EmployeeBenefitsAndShareBasedCompensation": {
     "auth_ref": [],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 4.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of expense for employee benefit and equity-based compensation.",
        "label": "Employee Benefits and Share-based Compensation",
        "terseLabel": "Expense related to share-based awards"
       }
      }
     },
     "localname": "EmployeeBenefitsAndShareBasedCompensation",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EmployeeStockOwnershipPlanESOPCompensationExpense": {
     "auth_ref": [
      "r313"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The amount of plan compensation cost recognized during the period.",
        "label": "Employee Stock Ownership Plan (ESOP), Compensation Expense",
        "terseLabel": "ESOP compensation expense"
       }
      }
     },
     "localname": "EmployeeStockOwnershipPlanESOPCompensationExpense",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansEmployeeStockOwnershipPlanDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EmployeeStockOwnershipPlanESOPDebtStructureEmployerLoanGuarantee": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Reflects the amount as of the balance sheet date of the employer's guarantee of debt repayment by the ESOP.",
        "label": "Employee Stock Ownership Plan (ESOP), Debt Structure, Employer Loan Guarantee",
        "terseLabel": "ESOP loan"
       }
      }
     },
     "localname": "EmployeeStockOwnershipPlanESOPDebtStructureEmployerLoanGuarantee",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansEmployeeStockOwnershipPlanDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EmployeeStockOwnershipPlanESOPDeferredSharesFairValue": {
     "auth_ref": [
      "r315"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value of unearned shares held by the employee stock ownership plan (ESOP).",
        "label": "Employee Stock Ownership Plan (ESOP), Deferred Shares, Fair Value",
        "terseLabel": "Fair value of deferred ESOP shares"
       }
      }
     },
     "localname": "EmployeeStockOwnershipPlanESOPDeferredSharesFairValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansEmployeeStockOwnershipPlanDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EmployeeStockOwnershipPlanESOPDividendsPaidToESOP": {
     "auth_ref": [
      "r311"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Dividends paid on stock held by an employee stock ownership plan.",
        "label": "Employee Stock Ownership Plan (ESOP), Dividends Paid to ESOP",
        "terseLabel": "Cash dividends paid on unallocated ESOP shares"
       }
      }
     },
     "localname": "EmployeeStockOwnershipPlanESOPDividendsPaidToESOP",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansEmployeeStockOwnershipPlanDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EmployeeStockOwnershipPlanESOPNumberOfAllocatedShares": {
     "auth_ref": [
      "r314"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The shares or units in an ESOP trust that have been assigned to individual participant accounts based on a known formula. IRS rules require allocations to be nondiscriminatory generally based on compensation, length of service, or a combination of both. For any particular participant such shares or units may be vested, unvested, or partially vested.",
        "label": "Employee Stock Ownership Plan (ESOP), Number of Allocated Shares",
        "terseLabel": "ESOP common stock allocated (in shares)"
       }
      }
     },
     "localname": "EmployeeStockOwnershipPlanESOPNumberOfAllocatedShares",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansEmployeeStockOwnershipPlanDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_EmployeeStockOwnershipPlanESOPNumberOfSuspenseShares": {
     "auth_ref": [
      "r314"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Shares contributed to the ESOP that have not yet been released, committed to be released, or allocated to participant accounts. Suspense shares generally collateralize ESOP debt.",
        "label": "Employee Stock Ownership Plan (ESOP), Number of Suspense Shares",
        "terseLabel": "Unallocated common stock of Employee Stock Ownership Plan (in shares)"
       }
      }
     },
     "localname": "EmployeeStockOwnershipPlanESOPNumberOfSuspenseShares",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnauditedParenthetical",
      "http://www.peoples.com/role/EmployeeBenefitPlansEmployeeStockOwnershipPlanDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_EmployeeStockOwnershipPlanESOPPolicy": {
     "auth_ref": [
      "r98",
      "r312"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for ESOP transactions, including the method of measuring compensation, the classification of dividends on ESOP shares, and the treatment of ESOP shares for EPS computations. If the employer has both old ESOP shares for which it does not adopt new guidance and new ESOP shares for which new guidance is required, these disclosures are required for both blocks of shares.",
        "label": "Employee Stock Ownership Plan (ESOP), Policy [Policy Text Block]",
        "terseLabel": "Employee Stock Ownership Plan"
       }
      }
     },
     "localname": "EmployeeStockOwnershipPlanESOPPolicy",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_EmployeeStockOwnershipPlanESOPSharesContributedToESOP": {
     "auth_ref": [
      "r311"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "This item represents the number of shares provided to the Employee Stock Ownership Plan (ESOP) during the period.",
        "label": "Employee Stock Ownership Plan (ESOP), Shares Contributed to ESOP",
        "terseLabel": "ESOP, shares to be purchased"
       }
      }
     },
     "localname": "EmployeeStockOwnershipPlanESOPSharesContributedToESOP",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansEmployeeStockOwnershipPlanDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_EquityAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Equity [Abstract]"
       }
      }
     },
     "localname": "EquityAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_EquityComponentDomain": {
     "auth_ref": [
      "r267"
     ],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Equity Component [Domain]",
        "terseLabel": "Equity Component [Domain]"
       }
      }
     },
     "localname": "EquityComponentDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofChangesinStockholdersEquityUnaudited",
      "http://www.peoples.com/role/ConsolidatedStatementsofChangesinStockholdersEquityUnauditedParenthetical",
      "http://www.peoples.com/role/NewAccountingStandardsDetails",
      "http://www.peoples.com/role/StockholdersEquityScheduleofAccumulatedOtherComprehensiveLossDetail",
      "http://www.peoples.com/role/StockholdersEquitySummaryofAmountsReclassifiedfromAOCLDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_EquityFundsMember": {
     "auth_ref": [
      "r278"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "An investment that pools funds from many investors to invest in a combination of underlying investments, primarily equity investments.",
        "label": "Equity Funds [Member]",
        "terseLabel": "Mutual funds"
       }
      }
     },
     "localname": "EquityFundsMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_EquitySecuritiesFvNi": {
     "auth_ref": [
      "r369"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 4.0,
       "parentTag": "us-gaap_MarketableSecurities",
       "weight": 1.0
      },
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail": {
       "order": 5.0,
       "parentTag": "us-gaap_AssetsFairValueDisclosure",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).",
        "label": "Equity Securities, FV-NI",
        "terseLabel": "Equity securities",
        "verboseLabel": "Equity securities, at fair value"
       }
      }
     },
     "localname": "EquitySecuritiesFvNi",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss": {
     "auth_ref": [
      "r195"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of unrealized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).",
        "label": "Equity Securities, FV-NI, Unrealized Gain (Loss)",
        "terseLabel": "Unrealized (losses) gains due to change in fair value of equity securities"
       }
      }
     },
     "localname": "EquitySecuritiesFvNiUnrealizedGainLoss",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EquitySecuritiesMember": {
     "auth_ref": [
      "r3",
      "r8",
      "r194",
      "r425",
      "r467",
      "r498"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Ownership interest or right to acquire or dispose of ownership interest in corporations and other legal entities for which ownership interest is represented by shares of common or preferred stock, convertible securities, stock rights, or stock warrants.",
        "label": "Equity Securities [Member]",
        "terseLabel": "Equity securities"
       }
      }
     },
     "localname": "EquitySecuritiesMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_EstimateOfFairValueFairValueDisclosureMember": {
     "auth_ref": [
      "r371"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Measured as an estimate of fair value.",
        "label": "Estimate of Fair Value Measurement [Member]",
        "terseLabel": "Fair Value"
       }
      }
     },
     "localname": "EstimateOfFairValueFairValueDisclosureMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsFinancialInstrumentsDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities": {
     "auth_ref": [
      "r308"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 5.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash outflow for realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.",
        "label": "Excess Tax Benefit from Share-based Compensation, Operating Activities",
        "negatedLabel": "Excess income tax benefits from stock option exercises"
       }
      }
     },
     "localname": "ExcessTaxBenefitFromShareBasedCompensationOperatingActivities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ExchangeTradedFundsMember": {
     "auth_ref": [
      "r278",
      "r365"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Investment that follows an index, commodity or basket of assets that trades similar to a stock on an exchange.",
        "label": "Exchange Traded Funds [Member]",
        "terseLabel": "Exchange-traded funds"
       }
      }
     },
     "localname": "ExchangeTradedFundsMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ExtendedMaturityMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Loan modification for an extension of the term of a loan in which it must be paid.",
        "label": "Extended Maturity [Member]",
        "terseLabel": "Extended Maturity"
       }
      }
     },
     "localname": "ExtendedMaturityMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ExternalCreditRatingByGroupingAxis": {
     "auth_ref": [
      "r146",
      "r217",
      "r264",
      "r350"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by external rating classified as investment grade or non investment grade.",
        "label": "External Credit Rating by Grouping [Axis]",
        "terseLabel": "External Credit Rating by Grouping [Axis]"
       }
      }
     },
     "localname": "ExternalCreditRatingByGroupingAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesDebtSecuritiesHeldtomaturityCreditQualityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ExternalCreditRatingByGroupingDomain": {
     "auth_ref": [
      "r263",
      "r349"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "External credit rating classified as investment grade or non-investment grade.",
        "label": "External Credit Rating by Grouping [Domain]",
        "terseLabel": "External Credit Rating by Grouping [Domain]"
       }
      }
     },
     "localname": "ExternalCreditRatingByGroupingDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesDebtSecuritiesHeldtomaturityCreditQualityDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ExternalCreditRatingInvestmentGradeMember": {
     "auth_ref": [
      "r263",
      "r349"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "External credit-rating that could be used to describe the current status of the payment and performance risk of credit derivatives and guarantee obligations that connote investment grade.",
        "label": "External Credit Rating, Investment Grade [Member]",
        "terseLabel": "Investment Grade"
       }
      }
     },
     "localname": "ExternalCreditRatingInvestmentGradeMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesDebtSecuritiesHeldtomaturityCreditQualityDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ExternalCreditRatingNonInvestmentGradeMember": {
     "auth_ref": [
      "r263",
      "r349"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "External credit-rating that could be used to describe the current status of the payment and performance risk of credit derivatives and guarantee obligations that connote non-investment grade.",
        "label": "External Credit Rating, Non Investment Grade [Member]",
        "terseLabel": "Non-Investment Grade"
       }
      }
     },
     "localname": "ExternalCreditRatingNonInvestmentGradeMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesDebtSecuritiesHeldtomaturityCreditQualityDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]",
        "terseLabel": "Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]"
       }
      }
     },
     "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsAdditionalInformationDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable": {
     "auth_ref": [
      "r358",
      "r359",
      "r360",
      "r366"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of information about asset and liability measured at fair value on recurring and nonrecurring basis.",
        "label": "Fair Value, Recurring and Nonrecurring [Table]",
        "terseLabel": "Fair Value Measurements, Recurring and Nonrecurring [Table]"
       }
      }
     },
     "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsAdditionalInformationDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock": {
     "auth_ref": [
      "r358",
      "r359",
      "r361"
     ],
     "lang": {
      "en-US": {
       "role": {
        "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).",
        "label": "Fair Value Measurements, Nonrecurring [Table Text Block]",
        "terseLabel": "Assets Measured at Fair Value on Non-Recurring Basis"
       }
      }
     },
     "localname": "FairValueAssetsMeasuredOnNonrecurringBasisTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]",
        "terseLabel": "Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]"
       }
      }
     },
     "localname": "FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsFinancialInstrumentsDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueByBalanceSheetGroupingTable": {
     "auth_ref": [
      "r358",
      "r372",
      "r373"
     ],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Fair Value, by Balance Sheet Grouping [Table]",
        "terseLabel": "Fair Value, by Balance Sheet Grouping [Table]"
       }
      }
     },
     "localname": "FairValueByBalanceSheetGroupingTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsFinancialInstrumentsDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueByBalanceSheetGroupingTextBlock": {
     "auth_ref": [
      "r358",
      "r372"
     ],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Fair Value, by Balance Sheet Grouping [Table Text Block]",
        "terseLabel": "Carrying Amounts and Estimated Fair Values of Financial Instruments"
       }
      }
     },
     "localname": "FairValueByBalanceSheetGroupingTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_FairValueByFairValueHierarchyLevelAxis": {
     "auth_ref": [
      "r278",
      "r279",
      "r297",
      "r359",
      "r405"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by level within fair value hierarchy and fair value measured at net asset value per share as practical expedient.",
        "label": "Fair Value Hierarchy and NAV [Axis]",
        "terseLabel": "Fair Value Hierarchy and NAV [Axis]"
       }
      }
     },
     "localname": "FairValueByFairValueHierarchyLevelAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsAdditionalInformationDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail",
      "http://www.peoples.com/role/FairValueMeasurementsFinancialInstrumentsDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueByMeasurementBasisAxis": {
     "auth_ref": [
      "r358",
      "r367"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by measurement basis.",
        "label": "Measurement Basis [Axis]",
        "terseLabel": "Measurement Basis [Axis]"
       }
      }
     },
     "localname": "FairValueByMeasurementBasisAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsFinancialInstrumentsDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueByMeasurementFrequencyAxis": {
     "auth_ref": [
      "r358",
      "r359",
      "r362",
      "r363",
      "r368"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by measurement frequency.",
        "label": "Measurement Frequency [Axis]",
        "terseLabel": "Measurement Frequency [Axis]"
       }
      }
     },
     "localname": "FairValueByMeasurementFrequencyAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansPolicies",
      "http://www.peoples.com/role/FairValueMeasurementsAdditionalInformationDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail",
      "http://www.peoples.com/role/FairValueMeasurementsFinancialInstrumentsDetail",
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueDisclosureItemAmountsDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Measurement basis, for example, but not limited to, reported value, fair value, portion at fair value, portion at other than fair value.",
        "label": "Fair Value Measurement [Domain]",
        "terseLabel": "Fair Value Measurement [Domain]"
       }
      }
     },
     "localname": "FairValueDisclosureItemAmountsDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsFinancialInstrumentsDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueDisclosuresAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Fair Value Disclosures [Abstract]"
       }
      }
     },
     "localname": "FairValueDisclosuresAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueDisclosuresTextBlock": {
     "auth_ref": [
      "r365"
     ],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Fair Value Disclosures [Text Block]",
        "terseLabel": "Fair Value Measurements"
       }
      }
     },
     "localname": "FairValueDisclosuresTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurements"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_FairValueHedgingMember": {
     "auth_ref": [
      "r333"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A hedge of the exposure to changes in the fair value of a recognized asset or liability, or of an unrecognized firm commitment, that are attributable to a particular risk.",
        "label": "Fair Value Hedging [Member]",
        "terseLabel": "Fair value"
       }
      }
     },
     "localname": "FairValueHedgingMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesAdditionalInformationDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesImpactonIncomeandAOCIDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueInputsLevel1Member": {
     "auth_ref": [
      "r278",
      "r279",
      "r297",
      "r359",
      "r406"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Quoted prices in active markets for identical assets or liabilities that the reporting entity can access at the measurement date.",
        "label": "Fair Value, Inputs, Level 1 [Member]",
        "terseLabel": "Level\u00a01"
       }
      }
     },
     "localname": "FairValueInputsLevel1Member",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail",
      "http://www.peoples.com/role/FairValueMeasurementsFinancialInstrumentsDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueInputsLevel2Member": {
     "auth_ref": [
      "r278",
      "r279",
      "r297",
      "r359",
      "r407"
     ],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Fair Value, Inputs, Level 2 [Member]",
        "terseLabel": "Level\u00a02"
       }
      }
     },
     "localname": "FairValueInputsLevel2Member",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail",
      "http://www.peoples.com/role/FairValueMeasurementsFinancialInstrumentsDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueInputsLevel3Member": {
     "auth_ref": [
      "r278",
      "r279",
      "r297",
      "r359",
      "r408"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.",
        "label": "Fair Value, Inputs, Level 3 [Member]",
        "terseLabel": "Level\u00a03"
       }
      }
     },
     "localname": "FairValueInputsLevel3Member",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsAdditionalInformationDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail",
      "http://www.peoples.com/role/FairValueMeasurementsFinancialInstrumentsDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueMeasurementFrequencyDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Measurement frequency.",
        "label": "Measurement Frequency [Domain]",
        "terseLabel": "Fair Value, Measurement Frequency [Domain]"
       }
      }
     },
     "localname": "FairValueMeasurementFrequencyDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansPolicies",
      "http://www.peoples.com/role/FairValueMeasurementsAdditionalInformationDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail",
      "http://www.peoples.com/role/FairValueMeasurementsFinancialInstrumentsDetail",
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueMeasurementPolicyPolicyTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for fair value measurements of financial and non-financial assets, liabilities and instruments classified in shareholders' equity. Disclosures include, but are not limited to, how an entity that manages a group of financial assets and liabilities on the basis of its net exposure measures the fair value of those assets and liabilities.",
        "label": "Fair Value Measurement, Policy [Policy Text Block]",
        "terseLabel": "Fair Value Measurements"
       }
      }
     },
     "localname": "FairValueMeasurementPolicyPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_FairValueMeasurementsFairValueHierarchyDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Categories used to prioritize the inputs to valuation techniques to measure fair value.",
        "label": "Fair Value Hierarchy and NAV [Domain]",
        "terseLabel": "Fair Value Hierarchy and NAV [Domain]"
       }
      }
     },
     "localname": "FairValueMeasurementsFairValueHierarchyDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsAdditionalInformationDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail",
      "http://www.peoples.com/role/FairValueMeasurementsFinancialInstrumentsDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueMeasurementsNonrecurringMember": {
     "auth_ref": [
      "r358",
      "r359",
      "r362",
      "r363",
      "r364",
      "r368"
     ],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Fair Value, Nonrecurring [Member]",
        "terseLabel": "Nonrecurring"
       }
      }
     },
     "localname": "FairValueMeasurementsNonrecurringMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansPolicies",
      "http://www.peoples.com/role/FairValueMeasurementsAdditionalInformationDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail",
      "http://www.peoples.com/role/FairValueMeasurementsFinancialInstrumentsDetail",
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueMeasurementsRecurringMember": {
     "auth_ref": [
      "r365",
      "r368"
     ],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Fair Value, Recurring [Member]",
        "terseLabel": "Recurring"
       }
      }
     },
     "localname": "FairValueMeasurementsRecurringMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansPolicies"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FederalDepositInsuranceCorporationPremiumExpense": {
     "auth_ref": [
      "r451"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 4.0,
       "parentTag": "us-gaap_NoninterestExpense",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of expense for Federal Deposit Insurance Corporation (FDIC) insurance.",
        "label": "Federal Deposit Insurance Corporation Premium Expense",
        "terseLabel": "Regulatory assessments"
       }
      }
     },
     "localname": "FederalDepositInsuranceCorporationPremiumExpense",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FederalFundsPurchased": {
     "auth_ref": [
      "r430"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 2.0,
       "parentTag": "pbct_BorrowedFundsExcludingLongTermDebt",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of short term borrowing where a bank borrows, at the federal funds rate, from another bank.",
        "label": "Federal Funds Purchased",
        "terseLabel": "Federal funds purchased"
       }
      }
     },
     "localname": "FederalFundsPurchased",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited",
      "http://www.peoples.com/role/FairValueMeasurementsFinancialInstrumentsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FederalHomeLoanBankCertificatesAndObligationsFHLBMember": {
     "auth_ref": [
      "r431"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Investments in securities issued by or through the member banks of the federal home loan bank (FHLB).",
        "label": "Federal Home Loan Bank Certificates and Obligations (FHLB) [Member]",
        "terseLabel": "FHLB advances"
       }
      }
     },
     "localname": "FederalHomeLoanBankCertificatesAndObligationsFHLBMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesAdditionalInformationDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FederalHomeLoanBankStock": {
     "auth_ref": [
      "r461"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "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).",
        "label": "Federal Home Loan Bank Stock",
        "terseLabel": "Acquired shares of capital stock"
       }
      }
     },
     "localname": "FederalHomeLoanBankStock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FederalHomeLoanBankStockAndFederalReserveBankStock": {
     "auth_ref": [],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 3.0,
       "parentTag": "us-gaap_MarketableSecurities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of Federal Home Loan Bank (FHLB) and Federal Reserve Bank stock.",
        "label": "Federal Home Loan Bank Stock and Federal Reserve Bank Stock",
        "terseLabel": "Federal Home Loan Bank and Federal Reserve Bank stock, at cost",
        "verboseLabel": "FHLB and FRB stock"
       }
      }
     },
     "localname": "FederalHomeLoanBankStockAndFederalReserveBankStock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited",
      "http://www.peoples.com/role/FairValueMeasurementsFinancialInstrumentsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FederalReserveBankStock": {
     "auth_ref": [
      "r461"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Federal Reserve Bank stock represents an equity interest in the Federal Reserve Bank. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity).",
        "label": "Federal Reserve Bank Stock",
        "terseLabel": "Acquired shares of capital stock"
       }
      }
     },
     "localname": "FederalReserveBankStock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseInterestExpense": {
     "auth_ref": [
      "r383",
      "r386",
      "r396"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesCostandSupplementalInformationDetails": {
       "order": 4.0,
       "parentTag": "us-gaap_LeaseCost",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of interest expense on finance lease liability.",
        "label": "Finance Lease, Interest Expense",
        "terseLabel": "Finance lease cost"
       }
      }
     },
     "localname": "FinanceLeaseInterestExpense",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesCostandSupplementalInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiability": {
     "auth_ref": [
      "r382",
      "r395"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Present value of lessee's discounted obligation for lease payments from finance lease.",
        "label": "Finance Lease, Liability",
        "terseLabel": "Total lease liabilities"
       }
      }
     },
     "localname": "FinanceLeaseLiability",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails",
      "http://www.peoples.com/role/LeasesCostandSupplementalInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityPaymentsDue": {
     "auth_ref": [
      "r395"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      },
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails_1": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for finance lease.",
        "label": "Finance Lease, Liability, Payment, Due",
        "totalLabel": "Total lease payments"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityPaymentsDue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityPaymentsDueAfterYearFive": {
     "auth_ref": [
      "r395"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails_1": {
       "order": 5.0,
       "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for finance lease, due after fifth fiscal year following latest fiscal year.",
        "label": "Finance Lease, Liability, Payments, Due after Year Five",
        "terseLabel": "Later years"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityPaymentsDueAfterYearFive",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityPaymentsDueYearFive": {
     "auth_ref": [
      "r395"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails_1": {
       "order": 1.0,
       "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for finance lease, due in fifth fiscal year following latest fiscal year.",
        "label": "Finance Lease, Liability, Payments, Due Year Five",
        "terseLabel": "2024"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityPaymentsDueYearFive",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour": {
     "auth_ref": [
      "r395"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails_1": {
       "order": 6.0,
       "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for finance lease, due in fourth fiscal year following latest fiscal year.",
        "label": "Finance Lease, Liability, Payments, Due Year Four",
        "terseLabel": "2023"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityPaymentsDueYearFour",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree": {
     "auth_ref": [
      "r395"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails_1": {
       "order": 3.0,
       "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for finance lease, due in third fiscal year following latest fiscal year.",
        "label": "Finance Lease, Liability, Payments, Due Year Three",
        "terseLabel": "2022"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityPaymentsDueYearThree",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo": {
     "auth_ref": [
      "r395"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails_1": {
       "order": 4.0,
       "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for finance lease, due in second fiscal year following latest fiscal year.",
        "label": "Finance Lease, Liability, Payments, Due Year Two",
        "terseLabel": "2021"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityPaymentsDueYearTwo",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear": {
     "auth_ref": [
      "r395"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails_1": {
       "order": 2.0,
       "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for finance lease, due in remainder of fiscal year following latest fiscal year ended.",
        "label": "Finance Lease, Liability, Payments, Remainder of Fiscal Year",
        "terseLabel": "2020"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount": {
     "auth_ref": [
      "r395"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for finance lease.",
        "label": "Finance Lease, Liability, Undiscounted Excess Amount",
        "negatedLabel": "Less: Interest"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityUndiscountedExcessAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeasePrincipalPayments": {
     "auth_ref": [
      "r384",
      "r390"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash outflow for principal payment on finance lease.",
        "label": "Finance Lease, Principal Payments",
        "terseLabel": "Reported in financing cash from finance leases"
       }
      }
     },
     "localname": "FinanceLeasePrincipalPayments",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesCostandSupplementalInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseRightOfUseAsset": {
     "auth_ref": [
      "r381"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's right to use underlying asset under finance lease.",
        "label": "Finance Lease, Right-of-Use Asset",
        "terseLabel": "Finance leases"
       }
      }
     },
     "localname": "FinanceLeaseRightOfUseAsset",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesCostandSupplementalInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent": {
     "auth_ref": [
      "r393",
      "r396"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted average discount rate for finance lease calculated at point in time.",
        "label": "Finance Lease, Weighted Average Discount Rate, Percent",
        "terseLabel": "Finance leases"
       }
      }
     },
     "localname": "FinanceLeaseWeightedAverageDiscountRatePercent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesCostandSupplementalInformationDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1": {
     "auth_ref": [
      "r392",
      "r396"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted average remaining lease term for finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.",
        "label": "Finance Lease, Weighted Average Remaining Lease Term",
        "terseLabel": "Finance leases"
       }
      }
     },
     "localname": "FinanceLeaseWeightedAverageRemainingLeaseTerm1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesCostandSupplementalInformationDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_FinancialAssetOriginatedMember": {
     "auth_ref": [
      "r160"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Financial asset originated, with deteriorated credit quality and without deteriorated credit quality.",
        "label": "Financial Asset Originated [Member]",
        "terseLabel": "Originated"
       }
      }
     },
     "localname": "FinancialAssetOriginatedMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansSummaryofCreditQualityIndicatorsbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofLoansbyLoanPortfolioSegmentandClassDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FinancialInstrumentAxis": {
     "auth_ref": [
      "r202",
      "r208",
      "r209",
      "r214",
      "r217",
      "r232",
      "r234",
      "r237",
      "r238"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of financial instrument.",
        "label": "Financial Instrument [Axis]",
        "terseLabel": "Financial Instrument [Axis]"
       }
      }
     },
     "localname": "FinancialInstrumentAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingAdditionalInformationDetail",
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofCollateralSwapsDetail",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAvailableforSaleandHeldtoMaturityDebtSecuritiesGainsLossesDetail",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesDebtSecuritiesHeldtomaturityCreditQualityDetails",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesImpactonIncomeandAOCIDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAdditionalInformationDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery": {
     "auth_ref": [
      "r208",
      "r224"
     ],
     "calculation": {
      "http://www.peoples.com/role/ScheduleofAllowanceForCreditLossesDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after recovery, of writeoff of financing receivable, charged against allowance for credit loss.",
        "label": "Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery",
        "negatedTotalLabel": "Net loan charge-offs"
       }
      }
     },
     "localname": "FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ScheduleofAllowanceForCreditLossesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinancingReceivableAllowanceForCreditLosses": {
     "auth_ref": [
      "r137",
      "r200",
      "r203",
      "r207",
      "r426"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 2.0,
       "parentTag": "us-gaap_LoansAndLeasesReceivableNetReportedAmount",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.",
        "label": "Financing Receivable, Allowance for Credit Loss",
        "negatedLabel": "Less allowance for credit losses",
        "periodEndLabel": "Balance at end of period",
        "periodStartLabel": "Balance at beginning of period",
        "terseLabel": "Allowance for loan losses"
       }
      }
     },
     "localname": "FinancingReceivableAllowanceForCreditLosses",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited",
      "http://www.peoples.com/role/LoansAdditionalInformationDetail",
      "http://www.peoples.com/role/NewAccountingStandardsDetails",
      "http://www.peoples.com/role/ScheduleofAllowanceForCreditLossesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1": {
     "auth_ref": [
      "r141"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.",
        "label": "Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment",
        "terseLabel": "Originated Loans Individually Evaluated for Impairment, Allowance"
       }
      }
     },
     "localname": "FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/AllowanceForCreditLossesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery": {
     "auth_ref": [
      "r140",
      "r206",
      "r224",
      "r426"
     ],
     "calculation": {
      "http://www.peoples.com/role/ScheduleofAllowanceForCreditLossesDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of recovery of financing receivables doubtful of collection that were previously charged off.",
        "label": "Financing Receivable, Allowance for Credit Loss, Recovery",
        "terseLabel": "Recoveries"
       }
      }
     },
     "localname": "FinancingReceivableAllowanceForCreditLossesRecovery",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ScheduleofAllowanceForCreditLossesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
        "label": "Financing Receivable, Allowance for Credit Loss [Roll Forward]",
        "terseLabel": "Financing Receivable, Allowance for Credit Losses [Roll Forward]"
       }
      }
     },
     "localname": "FinancingReceivableAllowanceForCreditLossesRollForward",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ScheduleofAllowanceForCreditLossesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs": {
     "auth_ref": [
      "r139",
      "r205",
      "r224",
      "r426"
     ],
     "calculation": {
      "http://www.peoples.com/role/ScheduleofAllowanceForCreditLossesDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of writeoff of financing receivable, charged against allowance for credit loss.",
        "label": "Financing Receivable, Allowance for Credit Loss, Writeoff",
        "negatedLabel": "Charge-offs"
       }
      }
     },
     "localname": "FinancingReceivableAllowanceForCreditLossesWriteOffs",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ScheduleofAllowanceForCreditLossesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinancingReceivableCreditQualityIndicatorsTableTextBlock": {
     "auth_ref": [
      "r146",
      "r217"
     ],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Financing Receivable Credit Quality Indicators [Table Text Block]",
        "terseLabel": "Summary of Credit Quality Indicators by Class of Loan"
       }
      }
     },
     "localname": "FinancingReceivableCreditQualityIndicatorsTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_FinancingReceivableModificationsLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Financing Receivable, Troubled Debt Restructuring [Line Items]",
        "terseLabel": "Financing Receivable, Modifications [Line Items]"
       }
      }
     },
     "localname": "FinancingReceivableModificationsLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanSubsequentlyDefaultedDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FinancingReceivableModificationsNumberOfContracts2": {
     "auth_ref": [
      "r148"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of financing receivables that have been modified by troubled debt restructurings.",
        "label": "Financing Receivable, Modifications, Number of Contracts",
        "terseLabel": "Number of Contracts"
       }
      }
     },
     "localname": "FinancingReceivableModificationsNumberOfContracts2",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanDetail"
     ],
     "xbrltype": "integerItemType"
    },
    "us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2": {
     "auth_ref": [
      "r148"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after troubled debt restructuring, of modified financing receivable.",
        "label": "Financing Receivable, Troubled Debt Restructuring, Postmodification",
        "terseLabel": "Post-Modification Outstanding Recorded Investment"
       }
      }
     },
     "localname": "FinancingReceivableModificationsPostModificationRecordedInvestment2",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2": {
     "auth_ref": [
      "r148"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, before troubled debt restructuring, of financing receivable to be modified.",
        "label": "Financing Receivable, Troubled Debt Restructuring, Premodification",
        "terseLabel": "Pre-Modification Outstanding Recorded Investment"
       }
      }
     },
     "localname": "FinancingReceivableModificationsPreModificationRecordedInvestment2",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinancingReceivableModificationsRecordedInvestment": {
     "auth_ref": [
      "r148",
      "r161"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of financing receivable modified as troubled debt restructuring.",
        "label": "Financing Receivable, Troubled Debt Restructuring",
        "terseLabel": "Recorded investment in originated loans classified as TDRs"
       }
      }
     },
     "localname": "FinancingReceivableModificationsRecordedInvestment",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1": {
     "auth_ref": [
      "r150"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default.",
        "label": "Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts",
        "terseLabel": "Number of Contracts"
       }
      }
     },
     "localname": "FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanSubsequentlyDefaultedDetail"
     ],
     "xbrltype": "integerItemType"
    },
    "us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1": {
     "auth_ref": [
      "r149"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of financing receivable modified as troubled debt restructuring within previous 12 months, with subsequent payment default.",
        "label": "Financing Receivable, Troubled Debt Restructuring, Subsequent Default",
        "terseLabel": "Recorded Investment\u00a0as\u00a0of Period End"
       }
      }
     },
     "localname": "FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanSubsequentlyDefaultedDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinancingReceivableNonaccrualInterestIncome": {
     "auth_ref": [
      "r211"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of interest income on financing receivable on nonaccrual status.",
        "label": "Financing Receivable, Nonaccrual, Interest Income",
        "terseLabel": "Nonaccrual interest income"
       }
      }
     },
     "localname": "FinancingReceivableNonaccrualInterestIncome",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinancingReceivableNonaccrualNoAllowance": {
     "auth_ref": [
      "r213"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of financing receivable on nonaccrual status with no allowance for credit loss.",
        "label": "Financing Receivable, Nonaccrual, No Allowance",
        "terseLabel": "Non-Accrual Loans With No ACL"
       }
      }
     },
     "localname": "FinancingReceivableNonaccrualNoAllowance",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear": {
     "auth_ref": [
      "r218",
      "r224"
     ],
     "calculation": {
      "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails": {
       "order": 7.0,
       "parentTag": "us-gaap_NotesReceivableGross",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of financing receivable originated five or more years prior to latest fiscal year.",
        "label": "Financing Receivable, Originated Five or More Years before Latest Fiscal Year",
        "terseLabel": "Prior"
       }
      }
     },
     "localname": "FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansScheduleofRetailLoansByRiskRatingsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear": {
     "auth_ref": [
      "r218",
      "r224"
     ],
     "calculation": {
      "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_NotesReceivableGross",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of financing receivable originated four years prior to latest fiscal year.",
        "label": "Financing Receivable, Originated Four Years before Latest Fiscal Year",
        "terseLabel": "2016"
       }
      }
     },
     "localname": "FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansScheduleofRetailLoansByRiskRatingsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinancingReceivableOriginatedInCurrentFiscalYear": {
     "auth_ref": [
      "r218",
      "r224"
     ],
     "calculation": {
      "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails": {
       "order": 4.0,
       "parentTag": "us-gaap_NotesReceivableGross",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of financing receivable originated in current fiscal year.",
        "label": "Financing Receivable, Originated in Current Fiscal Year",
        "terseLabel": "2020"
       }
      }
     },
     "localname": "FinancingReceivableOriginatedInCurrentFiscalYear",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansScheduleofRetailLoansByRiskRatingsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear": {
     "auth_ref": [
      "r218",
      "r224"
     ],
     "calculation": {
      "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_NotesReceivableGross",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of financing receivable originated in fiscal year prior to latest fiscal year.",
        "label": "Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year",
        "terseLabel": "2019"
       }
      }
     },
     "localname": "FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansScheduleofRetailLoansByRiskRatingsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear": {
     "auth_ref": [
      "r218",
      "r224"
     ],
     "calculation": {
      "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails": {
       "order": 6.0,
       "parentTag": "us-gaap_NotesReceivableGross",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of financing receivable originated three years prior to latest fiscal year.",
        "label": "Financing Receivable, Originated Three Years before Latest Fiscal Year",
        "terseLabel": "2017"
       }
      }
     },
     "localname": "FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansScheduleofRetailLoansByRiskRatingsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear": {
     "auth_ref": [
      "r218",
      "r224"
     ],
     "calculation": {
      "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails": {
       "order": 5.0,
       "parentTag": "us-gaap_NotesReceivableGross",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of financing receivable originated two years prior to latest fiscal year.",
        "label": "Financing Receivable, Originated Two Years before Latest Fiscal Year",
        "terseLabel": "2018"
       }
      }
     },
     "localname": "FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansScheduleofRetailLoansByRiskRatingsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinancingReceivablePortfolioSegmentAxis": {
     "auth_ref": [
      "r202",
      "r208",
      "r219"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by the level at which an entity develops and documents a systematic methodology to determine its allowance for credit losses.",
        "label": "Financing Receivable Portfolio Segment [Axis]",
        "terseLabel": "Financing Receivable Portfolio Segment [Axis]"
       }
      }
     },
     "localname": "FinancingReceivablePortfolioSegmentAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail",
      "http://www.peoples.com/role/LoansAdditionalInformationDetail",
      "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansScheduleofRetailLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail",
      "http://www.peoples.com/role/LoansSummaryofAgingInformationbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofCreditQualityIndicatorsbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofLoansbyLoanPortfolioSegmentandClassDetail",
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanSubsequentlyDefaultedDetail",
      "http://www.peoples.com/role/ScheduleofAllowanceForCreditLossesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FinancingReceivablePortfolioSegmentDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Level at which an entity develops and documents a systematic methodology to determine its allowance for credit losses.",
        "label": "Financing Receivable Portfolio Segment [Domain]",
        "terseLabel": "Financing Receivable Portfolio Segment [Domain]"
       }
      }
     },
     "localname": "FinancingReceivablePortfolioSegmentDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail",
      "http://www.peoples.com/role/LoansAdditionalInformationDetail",
      "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansScheduleofRetailLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail",
      "http://www.peoples.com/role/LoansSummaryofAgingInformationbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofCreditQualityIndicatorsbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofLoansbyLoanPortfolioSegmentandClassDetail",
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanSubsequentlyDefaultedDetail",
      "http://www.peoples.com/role/ScheduleofAllowanceForCreditLossesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FinancingReceivablePurchasedWithCreditDeteriorationAllowanceForCreditLossAtAcquisitionDate": {
     "auth_ref": [
      "r215"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of allowance for credit loss at acquisition date of financing receivable purchased with credit deterioration.",
        "label": "Financing Receivable, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date",
        "terseLabel": "Adjustment to amortized cost basis"
       }
      }
     },
     "localname": "FinancingReceivablePurchasedWithCreditDeteriorationAllowanceForCreditLossAtAcquisitionDate",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/NewAccountingStandardsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing": {
     "auth_ref": [
      "r153",
      "r212",
      "r225"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of financing receivable 90 days or more past due and still accruing.",
        "label": "Financing Receivable, 90 Days or More Past Due, Still Accruing",
        "terseLabel": "Loans past due and accruing"
       }
      }
     },
     "localname": "FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis": {
     "auth_ref": [
      "r147",
      "r154",
      "r155",
      "r209",
      "r214",
      "r217",
      "r220",
      "r221",
      "r224",
      "r225"
     ],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Class of Financing Receivable [Axis]",
        "terseLabel": "Class of Financing Receivable, Type [Axis]"
       }
      }
     },
     "localname": "FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited",
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail",
      "http://www.peoples.com/role/LoansAdditionalInformationDetail",
      "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansScheduleofRetailLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail",
      "http://www.peoples.com/role/LoansSummaryofAgingInformationbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofCreditQualityIndicatorsbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofLoansbyLoanPortfolioSegmentandClassDetail",
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanSubsequentlyDefaultedDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Financing receivables determined on the basis of initial measurement attribute, risk characteristics and method of monitoring and assessing credit risk.",
        "label": "Class of Financing Receivable [Domain]",
        "terseLabel": "Class of Financing Receivable, Type [Domain]"
       }
      }
     },
     "localname": "FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited",
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail",
      "http://www.peoples.com/role/LoansAdditionalInformationDetail",
      "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansScheduleofRetailLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail",
      "http://www.peoples.com/role/LoansSummaryofAgingInformationbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofCreditQualityIndicatorsbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofLoansbyLoanPortfolioSegmentandClassDetail",
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanSubsequentlyDefaultedDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FinancingReceivableRecordedInvestmentCurrent": {
     "auth_ref": [
      "r209",
      "r225"
     ],
     "calculation": {
      "http://www.peoples.com/role/LoansSummaryofAgingInformationbyClassofLoanDetail": {
       "order": 1.0,
       "parentTag": "us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of financing receivable not past due.",
        "label": "Financing Receivable, Not Past Due",
        "terseLabel": "Current"
       }
      }
     },
     "localname": "FinancingReceivableRecordedInvestmentCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansSummaryofAgingInformationbyClassofLoanDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinancingReceivableRecordedInvestmentLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Financing Receivable, Credit Quality Indicator [Line Items]",
        "terseLabel": "Financing Receivable, Recorded Investment [Line Items]"
       }
      }
     },
     "localname": "FinancingReceivableRecordedInvestmentLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansScheduleofRetailLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansSummaryofCreditQualityIndicatorsbyClassofLoanDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus": {
     "auth_ref": [
      "r152",
      "r210"
     ],
     "calculation": {
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of financing receivable on nonaccrual status.",
        "label": "Financing Receivable, Nonaccrual",
        "totalLabel": "Total"
       }
      }
     },
     "localname": "FinancingReceivableRecordedInvestmentNonaccrualStatus",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinancingReceivableRecordedInvestmentPastDue": {
     "auth_ref": [
      "r155",
      "r209",
      "r225"
     ],
     "calculation": {
      "http://www.peoples.com/role/LoansSummaryofAgingInformationbyClassofLoanDetail": {
       "order": 2.0,
       "parentTag": "us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of financing receivable past due.",
        "label": "Financing Receivable, Past Due",
        "terseLabel": "Total Past Due"
       }
      }
     },
     "localname": "FinancingReceivableRecordedInvestmentPastDue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansSummaryofAgingInformationbyClassofLoanDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Financing Receivable, Past Due [Line Items]",
        "terseLabel": "Financing Receivable, Recorded Investment, Past Due [Line Items]"
       }
      }
     },
     "localname": "FinancingReceivableRecordedInvestmentPastDueLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail",
      "http://www.peoples.com/role/LoansSummaryofAgingInformationbyClassofLoanDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FinancingReceivableRevolving": {
     "auth_ref": [
      "r218",
      "r224"
     ],
     "calculation": {
      "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_NotesReceivableGross",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of financing receivable that can be withdrawn, repaid and redrawn.",
        "label": "Financing Receivable, Revolving",
        "terseLabel": "Revolving Loans"
       }
      }
     },
     "localname": "FinancingReceivableRevolving",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansScheduleofRetailLoansByRiskRatingsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember": {
     "auth_ref": [
      "r225"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Financial asset equal to or greater than 90 days past due.",
        "label": "Financial Asset, Equal to or Greater than 90 Days Past Due [Member]",
        "terseLabel": "90\u00a0Days or More"
       }
      }
     },
     "localname": "FinancingReceivablesEqualToGreaterThan90DaysPastDueMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansSummaryofAgingInformationbyClassofLoanDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FinancingReceivablesPeriodPastDueAxis": {
     "auth_ref": [
      "r209",
      "r225"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by time period financial asset is past due.",
        "label": "Financial Asset, Period Past Due [Axis]",
        "terseLabel": "Financing Receivables, Period Past Due [Axis]"
       }
      }
     },
     "localname": "FinancingReceivablesPeriodPastDueAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansSummaryofAgingInformationbyClassofLoanDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FinancingReceivablesPeriodPastDueDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Period in which financial asset is 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.",
        "label": "Financial Asset, Period Past Due [Domain]",
        "terseLabel": "Financing Receivables, Period Past Due [Domain]"
       }
      }
     },
     "localname": "FinancingReceivablesPeriodPastDueDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansSummaryofAgingInformationbyClassofLoanDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FinancingReceivablesTextBlock": {
     "auth_ref": [
      "r157",
      "r159"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for financing receivable.",
        "label": "Financing Receivables [Text Block]",
        "terseLabel": "Loans"
       }
      }
     },
     "localname": "FinancingReceivablesTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/Loans"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Finite-Lived Intangible Assets, Amortization Expense, after Year Five",
        "terseLabel": "Amortization expense attributable to other acquisition-related intangible assets, 2025"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/GoodwillandOtherAcquisitionRelatedIntangibleAssetsAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year",
        "terseLabel": "Amortization expense attributable to other acquisition-related intangible assets, 2020"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/GoodwillandOtherAcquisitionRelatedIntangibleAssetsAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive": {
     "auth_ref": [
      "r251"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Finite-Lived Intangible Assets, Amortization Expense, Year Five",
        "terseLabel": "Amortization expense attributable to other acquisition-related intangible assets, 2024"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseYearFive",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/GoodwillandOtherAcquisitionRelatedIntangibleAssetsAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour": {
     "auth_ref": [
      "r251"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Finite-Lived Intangible Assets, Amortization Expense, Year Four",
        "terseLabel": "Amortization expense attributable to other acquisition-related intangible assets, 2023"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseYearFour",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/GoodwillandOtherAcquisitionRelatedIntangibleAssetsAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree": {
     "auth_ref": [
      "r251"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Finite-Lived Intangible Assets, Amortization Expense, Year Three",
        "terseLabel": "Amortization expense attributable to other acquisition-related intangible assets, 2022"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseYearThree",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/GoodwillandOtherAcquisitionRelatedIntangibleAssetsAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo": {
     "auth_ref": [
      "r251"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Finite-Lived Intangible Assets, Amortization Expense, Year Two",
        "terseLabel": "Amortization expense attributable to other acquisition-related intangible assets, 2021"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/GoodwillandOtherAcquisitionRelatedIntangibleAssetsAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis": {
     "auth_ref": [
      "r245",
      "r246",
      "r249",
      "r252",
      "r413"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by major type or class of finite-lived intangible assets.",
        "label": "Finite-Lived Intangible Assets by Major Class [Axis]",
        "terseLabel": "Finite-Lived Intangible Assets by Major Class [Axis]"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetsByMajorClassAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/GoodwillandOtherAcquisitionRelatedIntangibleAssetsAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain": {
     "auth_ref": [
      "r245",
      "r248"
     ],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Finite-Lived Intangible Assets, Major Class Name [Domain]",
        "terseLabel": "Finite-Lived Intangible Assets, Major Class Name [Domain]"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetsMajorClassNameDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/GoodwillandOtherAcquisitionRelatedIntangibleAssetsAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetsNet": {
     "auth_ref": [
      "r249"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.",
        "label": "Finite-Lived Intangible Assets, Net",
        "terseLabel": "Other acquisition-related intangible assets"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetsNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/GoodwillandOtherAcquisitionRelatedIntangibleAssetsAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FixedIncomeSecuritiesMember": {
     "auth_ref": [
      "r278",
      "r297"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Investment that provides a return in the form of fixed periodic payments and eventual return of principal at maturity.",
        "label": "Fixed Income Securities [Member]",
        "terseLabel": "Fixed income securities"
       }
      }
     },
     "localname": "FixedIncomeSecuritiesMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ForeclosedAssets": {
     "auth_ref": [
      "r135",
      "r136"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Carrying amount as of the balance sheet date of all assets obtained in full or partial satisfaction of a debt arrangement through foreclosure proceedings or defeasance; includes real and personal property; equity interests in corporations, partnerships, and joint ventures; and beneficial interests in trusts.",
        "label": "Repossessed Assets",
        "terseLabel": "Repossessed assets"
       }
      }
     },
     "localname": "ForeclosedAssets",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail",
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ForeignExchangeContractMember": {
     "auth_ref": [
      "r278",
      "r346"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Derivative instrument whose primary underlying risk is tied to foreign exchange rates.",
        "label": "Foreign Exchange Contract [Member]",
        "terseLabel": "Foreign exchange contracts"
       }
      }
     },
     "localname": "ForeignExchangeContractMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofGrossPresentationInstrumentsOffsetDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesImpactonIncomeandAOCIDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ForwardContractsMember": {
     "auth_ref": [
      "r344"
     ],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Forward Contracts [Member]",
        "terseLabel": "Forward commitments to sell residential mortgage\u00a0loans"
       }
      }
     },
     "localname": "ForwardContractsMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesImpactonIncomeandAOCIDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_GainLossOnDerivativeInstrumentsNetPretax": {
     "auth_ref": [
      "r338"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.",
        "label": "Gain (Loss) on Derivative Instruments, Net, Pretax",
        "terseLabel": "Amount of Pre-Tax Gain (Loss) Recognized in Earnings"
       }
      }
     },
     "localname": "GainLossOnDerivativeInstrumentsNetPretax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesImpactonIncomeandAOCIDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_GainLossOnSaleOfLoansAndLeases": {
     "auth_ref": [
      "r88"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 13.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The gains (losses) included in earnings that represent the difference between the sale price and the carrying value of loans and leases that were sold during the reporting period. This element refers to the gain (loss) and not to the cash proceeds of the sales. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.",
        "label": "Gain (Loss) on Sale of Loans and Leases",
        "negatedLabel": "Net gains on sales of loans",
        "terseLabel": "Gain (Loss) on Sale of Loans and Leases"
       }
      }
     },
     "localname": "GainLossOnSaleOfLoansAndLeases",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited",
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_GainLossOnSaleOfMortgageLoans": {
     "auth_ref": [
      "r88",
      "r481",
      "r482",
      "r483"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 9.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The gains (losses) included in earnings that represent the difference between the sale price and the carrying value of loans made to finance real estate acquisitions. This element refers to the gain (loss) 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.",
        "label": "Gain (Loss) on Sale of Mortgage Loans",
        "negatedLabel": "Net losses on sales of residential mortgage loans"
       }
      }
     },
     "localname": "GainLossOnSaleOfMortgageLoans",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_GainsLossesOnSalesOfOtherRealEstate": {
     "auth_ref": [
      "r450"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Gains (Losses) on Sales of Other Real Estate",
        "terseLabel": "Write downs and net loss on sale of foreclosed/repossessed assets charged to non-interest expense total"
       }
      }
     },
     "localname": "GainsLossesOnSalesOfOtherRealEstate",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_Goodwill": {
     "auth_ref": [
      "r240",
      "r241"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 4.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.",
        "label": "Goodwill",
        "terseLabel": "Goodwill (note 8)",
        "verboseLabel": "Goodwill"
       }
      }
     },
     "localname": "Goodwill",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited",
      "http://www.peoples.com/role/GoodwillandOtherAcquisitionRelatedIntangibleAssetsAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_GoodwillAndIntangibleAssetImpairment": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill.",
        "label": "Goodwill and Intangible Asset Impairment",
        "terseLabel": "Impairment losses relating to goodwill or other acquisition-related intangible assets"
       }
      }
     },
     "localname": "GoodwillAndIntangibleAssetImpairment",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/GoodwillandOtherAcquisitionRelatedIntangibleAssetsAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Goodwill and Intangible Assets Disclosure [Abstract]"
       }
      }
     },
     "localname": "GoodwillAndIntangibleAssetsDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock": {
     "auth_ref": [
      "r253"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for goodwill and intangible assets.",
        "label": "Goodwill and Intangible Assets Disclosure [Text Block]",
        "terseLabel": "Goodwill and Other Acquisition-Related Intangible Assets"
       }
      }
     },
     "localname": "GoodwillAndIntangibleAssetsDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/GoodwillandOtherAcquisitionRelatedIntangibleAssets"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_HedgingDesignationAxis": {
     "auth_ref": [
      "r335",
      "r348"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by designation of purpose of derivative instrument.",
        "label": "Hedging Designation [Axis]",
        "terseLabel": "Hedging Designation [Axis]"
       }
      }
     },
     "localname": "HedgingDesignationAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesAdditionalInformationDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesImpactonIncomeandAOCIDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_HedgingDesignationDomain": {
     "auth_ref": [
      "r335"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Designation of purpose of derivative instrument.",
        "label": "Hedging Designation [Domain]",
        "terseLabel": "Hedging Designation [Domain]"
       }
      }
     },
     "localname": "HedgingDesignationDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesAdditionalInformationDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesImpactonIncomeandAOCIDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_HedgingRelationshipDomain": {
     "auth_ref": [
      "r335"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Nature or intent of a hedge.",
        "label": "Hedging Relationship [Domain]",
        "terseLabel": "Hedging Relationship [Domain]"
       }
      }
     },
     "localname": "HedgingRelationshipDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesAdditionalInformationDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesImpactonIncomeandAOCIDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_HeldToMaturitySecurities": {
     "auth_ref": [
      "r163",
      "r179"
     ],
     "calculation": {
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of investment in debt security measured at amortized cost (held-to-maturity).",
        "label": "Debt Securities, Held-to-maturity",
        "terseLabel": "Debt securities held-to-maturity",
        "totalLabel": "Amortized Cost"
       }
      }
     },
     "localname": "HeldToMaturitySecurities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAvailableforSaleandHeldtoMaturityDebtSecuritiesGainsLossesDetail",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesDebtSecuritiesHeldtomaturityCreditQualityDetails",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail",
      "http://www.peoples.com/role/FairValueMeasurementsFinancialInstrumentsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain": {
     "auth_ref": [
      "r182"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of accumulated unrecognized gain on investment in debt security measured at amortized cost (held-to-maturity).",
        "label": "Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain",
        "terseLabel": "Gross Unrealized Gains"
       }
      }
     },
     "localname": "HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAvailableforSaleandHeldtoMaturityDebtSecuritiesGainsLossesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss": {
     "auth_ref": [
      "r183"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity).",
        "label": "Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss",
        "negatedLabel": "Gross Unrealized Losses",
        "terseLabel": "Held to maturity securities gross unrealized losses"
       }
      }
     },
     "localname": "HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAvailableforSaleandHeldtoMaturityDebtSecuritiesGainsLossesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss": {
     "auth_ref": [
      "r191",
      "r193"
     ],
     "calculation": {
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail": {
       "order": 2.0,
       "parentTag": "us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity), in continuous loss position for 12 months or longer.",
        "label": "Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss",
        "negatedLabel": "12 Months Or Longer"
       }
      }
     },
     "localname": "HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss": {
     "auth_ref": [
      "r191"
     ],
     "calculation": {
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity), in unrealized loss position.",
        "label": "Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss",
        "negatedTotalLabel": "Total"
       }
      }
     },
     "localname": "HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss [Abstract]",
        "terseLabel": "Held-to-maturity, Unrealized Loss"
       }
      }
     },
     "localname": "HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue": {
     "auth_ref": [
      "r190"
     ],
     "calculation": {
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value of investment in debt security measured at amortized cost (held-to-maturity), in unrealized loss position.",
        "label": "Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value",
        "totalLabel": "Total"
       }
      }
     },
     "localname": "HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValueAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Fair Value [Abstract]",
        "terseLabel": "Held-to-maturity, Fair Value"
       }
      }
     },
     "localname": "HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValueAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss": {
     "auth_ref": [
      "r191",
      "r193"
     ],
     "calculation": {
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail": {
       "order": 1.0,
       "parentTag": "us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity), in continuous loss position for less than 12 months.",
        "label": "Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss",
        "negatedLabel": "Less Than 12 Months"
       }
      }
     },
     "localname": "HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue": {
     "auth_ref": [
      "r193"
     ],
     "calculation": {
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail": {
       "order": 1.0,
       "parentTag": "us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value of investment in debt security measured at amortized cost (held-to-maturity), in continuous unrealized loss position for less than 12 months.",
        "label": "Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value",
        "terseLabel": "Less Than 12 Months"
       }
      }
     },
     "localname": "HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue": {
     "auth_ref": [
      "r193"
     ],
     "calculation": {
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail": {
       "order": 2.0,
       "parentTag": "us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value of investment in debt security measured at amortized cost (held-to-maturity), in continuous unrealized loss position for 12 months or longer.",
        "label": "Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value",
        "terseLabel": "12 Months Or Longer"
       }
      }
     },
     "localname": "HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue": {
     "auth_ref": [
      "r186",
      "r459"
     ],
     "calculation": {
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail": {
       "order": 3.0,
       "parentTag": "us-gaap_HeldToMaturitySecuritiesFairValue",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "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 latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.",
        "label": "Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value",
        "terseLabel": "Held to Maturity, Fair Value, After 5 but within 10 years"
       }
      }
     },
     "localname": "HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount": {
     "auth_ref": [
      "r186",
      "r459"
     ],
     "calculation": {
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail": {
       "order": 3.0,
       "parentTag": "us-gaap_HeldToMaturitySecurities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount 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 latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.",
        "label": "Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost",
        "terseLabel": "Held to Maturity, Amortized Cost, After 5 but within 10 years"
       }
      }
     },
     "localname": "HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue": {
     "auth_ref": [
      "r185",
      "r458"
     ],
     "calculation": {
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail": {
       "order": 2.0,
       "parentTag": "us-gaap_HeldToMaturitySecuritiesFairValue",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "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 through fifth fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.",
        "label": "Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Fair Value",
        "terseLabel": "Held to Maturity, Fair Value, After 1 but within 5 years"
       }
      }
     },
     "localname": "HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount": {
     "auth_ref": [
      "r185",
      "r458"
     ],
     "calculation": {
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail": {
       "order": 2.0,
       "parentTag": "us-gaap_HeldToMaturitySecurities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount 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 through fifth fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.",
        "label": "Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Amortized Cost",
        "terseLabel": "Held to Maturity, Amortized Cost, After 1 but within 5 years"
       }
      }
     },
     "localname": "HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue": {
     "auth_ref": [
      "r187",
      "r460"
     ],
     "calculation": {
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail": {
       "order": 4.0,
       "parentTag": "us-gaap_HeldToMaturitySecuritiesFairValue",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "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 latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.",
        "label": "Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after 10 Years, Fair Value",
        "terseLabel": "Held to Maturity, Fair Value, After 10 years"
       }
      }
     },
     "localname": "HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount": {
     "auth_ref": [
      "r187",
      "r460"
     ],
     "calculation": {
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail": {
       "order": 4.0,
       "parentTag": "us-gaap_HeldToMaturitySecurities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount 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 latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.",
        "label": "Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after 10 Years, Amortized Cost",
        "terseLabel": "Held to Maturity, Amortized Cost, After 10 years"
       }
      }
     },
     "localname": "HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesNetCarryingAmountAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract]",
        "terseLabel": "Debt securities held-to-maturity:"
       }
      }
     },
     "localname": "HeldToMaturitySecuritiesDebtMaturitiesNetCarryingAmountAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAvailableforSaleandHeldtoMaturityDebtSecuritiesGainsLossesDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue": {
     "auth_ref": [
      "r184",
      "r457"
     ],
     "calculation": {
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail": {
       "order": 1.0,
       "parentTag": "us-gaap_HeldToMaturitySecuritiesFairValue",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "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 latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.",
        "label": "Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value",
        "terseLabel": "Held to Maturity, Fair Value, Within 1 year"
       }
      }
     },
     "localname": "HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount": {
     "auth_ref": [
      "r184",
      "r457"
     ],
     "calculation": {
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail": {
       "order": 1.0,
       "parentTag": "us-gaap_HeldToMaturitySecurities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount 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 latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.",
        "label": "Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, within One Year, Amortized Cost",
        "terseLabel": "Held to Maturity, Amortized Cost, Within 1 year"
       }
      }
     },
     "localname": "HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_HeldToMaturitySecuritiesFairValue": {
     "auth_ref": [
      "r180"
     ],
     "calculation": {
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value of investment in debt security measured at amortized cost (held-to-maturity).",
        "label": "Debt Securities, Held-to-maturity, Fair Value",
        "terseLabel": "Securities held to maturity, at fair value",
        "totalLabel": "Held to Maturity, Fair Value, Total",
        "verboseLabel": "Fair Value"
       }
      }
     },
     "localname": "HeldToMaturitySecuritiesFairValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAvailableforSaleandHeldtoMaturityDebtSecuritiesGainsLossesDetail",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail",
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnauditedParenthetical"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_HomeEquityLoanMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Home Equity Loan [Member]",
        "terseLabel": "Home equity"
       }
      }
     },
     "localname": "HomeEquityLoanMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansScheduleofRetailLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail",
      "http://www.peoples.com/role/LoansSummaryofAgingInformationbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofCreditQualityIndicatorsbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofLoansbyLoanPortfolioSegmentandClassDetail",
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanSubsequentlyDefaultedDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod": {
     "auth_ref": [
      "r145"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.",
        "label": "Impaired Financing Receivable, Interest Income, Accrual Method",
        "verboseLabel": "Interest income recognized"
       }
      }
     },
     "localname": "ImpairedFinancingReceivableInterestIncomeAccrualMethod",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ImpairedFinancingReceivableRelatedAllowance": {
     "auth_ref": [
      "r144"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of allowance for credit losses related to recorded investment.",
        "label": "Impaired Financing Receivable, Related Allowance",
        "terseLabel": "Related Allowance for Loan Losses"
       }
      }
     },
     "localname": "ImpairedFinancingReceivableRelatedAllowance",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment": {
     "auth_ref": [
      "r143"
     ],
     "calculation": {
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail": {
       "order": 2.0,
       "parentTag": "us-gaap_AssetsFairValueDisclosure",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of investment in impaired financing receivables for which there is a related allowance for credit losses.",
        "label": "Impaired Financing Receivable, with Related Allowance, Recorded Investment",
        "terseLabel": "Impaired loans"
       }
      }
     },
     "localname": "ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsAdditionalInformationDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail",
      "http://www.peoples.com/role/FairValueMeasurementsFinancialInstrumentsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ImpairmentOfInvestments": {
     "auth_ref": [
      "r166"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.",
        "label": "Other than Temporary Impairment Losses, Investments",
        "terseLabel": "Impairment of investments"
       }
      }
     },
     "localname": "ImpairmentOfInvestments",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest": {
     "auth_ref": [
      "r63",
      "r107",
      "r414",
      "r439",
      "r479"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 1.0,
       "parentTag": "us-gaap_NetIncomeLoss",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest",
        "negatedLabel": "Income before income tax expense",
        "totalLabel": "Income before income tax expense"
       }
      }
     },
     "localname": "IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited",
      "http://www.peoples.com/role/StockholdersEquitySummaryofAmountsReclassifiedfromAOCLDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeStatementAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Income Statement [Abstract]"
       }
      }
     },
     "localname": "IncomeStatementAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncomeStatementLocationAxis": {
     "auth_ref": [
      "r255"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by location in the income statement.",
        "label": "Income Statement Location [Axis]",
        "terseLabel": "Income Statement Location [Axis]"
       }
      }
     },
     "localname": "IncomeStatementLocationAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncomeStatementLocationDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Location in the income statement.",
        "label": "Income Statement Location [Domain]",
        "terseLabel": "Income Statement Location [Domain]"
       }
      }
     },
     "localname": "IncomeStatementLocationDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_IncomeTaxExpenseBenefit": {
     "auth_ref": [
      "r99",
      "r130",
      "r316"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 2.0,
       "parentTag": "us-gaap_NetIncomeLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.",
        "label": "Income Tax Expense (Benefit)",
        "terseLabel": "Income tax expense",
        "verboseLabel": "Income tax expense (note 1)"
       }
      }
     },
     "localname": "IncomeTaxExpenseBenefit",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited",
      "http://www.peoples.com/role/StockholdersEquitySummaryofAmountsReclassifiedfromAOCLDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeTaxesPaidNet": {
     "auth_ref": [
      "r93"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.",
        "label": "Income Taxes Paid, Net",
        "terseLabel": "Income taxes payments"
       }
      }
     },
     "localname": "IncomeTaxesPaidNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInDeposits": {
     "auth_ref": [
      "r91",
      "r456"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 6.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The net cash inflow or outflow for the increase (decrease) in the beginning and end of period deposits balances.",
        "label": "Increase (Decrease) in Deposits",
        "terseLabel": "Net increase in deposits"
       }
      }
     },
     "localname": "IncreaseDecreaseInDeposits",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet": {
     "auth_ref": [
      "r87"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 6.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase (decrease) in operating assets after deduction of operating liabilities classified as other.",
        "label": "Increase (Decrease) in Other Operating Assets and Liabilities, Net",
        "negatedLabel": "Net changes in other assets and other liabilities"
       }
      }
     },
     "localname": "IncreaseDecreaseInOtherOperatingCapitalNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInStockholdersEquityRollForward": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
        "label": "Increase (Decrease) in Stockholders' Equity [Roll Forward]",
        "terseLabel": "Increase (Decrease) in Stockholders' Equity [Roll Forward]"
       }
      }
     },
     "localname": "IncreaseDecreaseInStockholdersEquityRollForward",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofChangesinStockholdersEquityUnaudited"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncreaseDecreaseInTradingSecurities": {
     "auth_ref": [
      "r81",
      "r87"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 2.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase (decrease) of investment in debt and equity securities, measured at fair value with changes in fair value recognized in net income.",
        "label": "Increase (Decrease) in Debt Securities, Trading, and Equity Securities, FV-NI",
        "negatedLabel": "Net decrease in trading debt securities"
       }
      }
     },
     "localname": "IncreaseDecreaseInTradingSecurities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InsuranceCommissionsAndFees": {
     "auth_ref": [
      "r447",
      "r480"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 1.0,
       "parentTag": "us-gaap_NoninterestIncome",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Income from agency and brokerage operations (includes sales of annuities and supplemental contracts); service charges, commissions, and fees from the sale of insurance and related services; and management fees from separate accounts, deferred annuities, and universal life products.",
        "label": "Insurance Commissions and Fees",
        "terseLabel": "Insurance revenue"
       }
      }
     },
     "localname": "InsuranceCommissionsAndFees",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InsuranceContractsAcquiredInBusinessCombinationMember": {
     "auth_ref": [
      "r466",
      "r487"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Written contracts detailing the terms and conditions of insurance acquired in a business combination.",
        "label": "Insurance Contracts Acquired in Business Combination [Member]",
        "terseLabel": "Insurance Relationships"
       }
      }
     },
     "localname": "InsuranceContractsAcquiredInBusinessCombinationMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/GoodwillandOtherAcquisitionRelatedIntangibleAssetsAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_IntangibleAssetsNetExcludingGoodwill": {
     "auth_ref": [
      "r243",
      "r247"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 7.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Intangible Assets, Net (Excluding Goodwill)",
        "terseLabel": "Other acquisition-related intangible assets",
        "verboseLabel": "Other acquisition-related intangible assets (note 8)"
       }
      }
     },
     "localname": "IntangibleAssetsNetExcludingGoodwill",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited",
      "http://www.peoples.com/role/GoodwillandOtherAcquisitionRelatedIntangibleAssetsAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestAndDividendIncomeOperating": {
     "auth_ref": [
      "r443"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 1.0,
       "parentTag": "us-gaap_InterestIncomeExpenseNet",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Interest and Dividend Income, Operating",
        "totalLabel": "Total interest and dividend income"
       }
      }
     },
     "localname": "InterestAndDividendIncomeOperating",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestAndDividendIncomeOperatingAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Interest and Dividend Income, Operating [Abstract]",
        "terseLabel": "Interest and dividend income:"
       }
      }
     },
     "localname": "InterestAndDividendIncomeOperatingAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_InterestAndDividendIncomeSecurities": {
     "auth_ref": [],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 3.0,
       "parentTag": "us-gaap_InterestAndDividendIncomeOperating",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of operating dividend and interest income, including amortization and accretion of premiums and discounts, on securities.",
        "label": "Interest and Dividend Income, Securities, Operating",
        "terseLabel": "Securities"
       }
      }
     },
     "localname": "InterestAndDividendIncomeSecurities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestAndFeeIncomeLoansAndLeases": {
     "auth_ref": [
      "r442"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 1.0,
       "parentTag": "us-gaap_InterestAndDividendIncomeOperating",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Interest and Fee Income, Loans and Leases",
        "totalLabel": "Total interest on loans"
       }
      }
     },
     "localname": "InterestAndFeeIncomeLoansAndLeases",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestAndFeeIncomeLoansCommercialRealEstate": {
     "auth_ref": [
      "r442"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 3.0,
       "parentTag": "us-gaap_InterestAndFeeIncomeLoansAndLeases",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Interest and fee income generated from loans secured by commercial properties. Examples of properties commonly securing commercial real estate loans may include office buildings, apartment buildings, shopping centers, industrial property, and hotels.",
        "label": "Interest and Fee Income, Loans, Commercial, Real Estate",
        "terseLabel": "Commercial real estate"
       }
      }
     },
     "localname": "InterestAndFeeIncomeLoansCommercialRealEstate",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestAndFeeIncomeLoansConsumerRealEstate": {
     "auth_ref": [
      "r442"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 2.0,
       "parentTag": "us-gaap_InterestAndFeeIncomeLoansAndLeases",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Interest and fee income generated from loans secured by one- to four-family residential properties. This item excludes home equity lines-of-credit.",
        "label": "Interest and Fee Income, Loans, Consumer, Real Estate",
        "terseLabel": "Residential mortgage"
       }
      }
     },
     "localname": "InterestAndFeeIncomeLoansConsumerRealEstate",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestAndFeeIncomeLoansOtherConsumer": {
     "auth_ref": [
      "r442"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 1.0,
       "parentTag": "us-gaap_InterestAndFeeIncomeLoansAndLeases",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Interest and fee income from other loans extended to individual consumers.",
        "label": "Interest and Fee Income, Loans, Other Consumer",
        "terseLabel": "Home equity and other consumer"
       }
      }
     },
     "localname": "InterestAndFeeIncomeLoansOtherConsumer",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestBearingDepositsInBanks": {
     "auth_ref": [
      "r415",
      "r434"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "For banks and other depository institutions (including Federal Reserve Banks, if applicable): Interest-bearing deposits in other financial institutions for relatively short periods of time including, for example, certificates of deposits, which are presented separately from cash on the balance sheet.",
        "label": "Interest-bearing Deposits in Banks and Other Financial Institutions",
        "terseLabel": "Interest-bearing deposits"
       }
      }
     },
     "localname": "InterestBearingDepositsInBanks",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestExpense": {
     "auth_ref": [
      "r62",
      "r129",
      "r375",
      "r377",
      "r455"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 2.0,
       "parentTag": "us-gaap_InterestIncomeExpenseNet",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of the cost of borrowed funds accounted for as interest expense.",
        "label": "Interest Expense",
        "totalLabel": "Total interest expense"
       }
      }
     },
     "localname": "InterestExpense",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestExpenseAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Interest Expense [Abstract]",
        "terseLabel": "Interest expense:"
       }
      }
     },
     "localname": "InterestExpenseAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_InterestExpenseDeposits": {
     "auth_ref": [
      "r453"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 1.0,
       "parentTag": "us-gaap_InterestExpense",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Aggregate amount of interest expense on all deposits.",
        "label": "Interest Expense, Deposits",
        "terseLabel": "Deposits"
       }
      }
     },
     "localname": "InterestExpenseDeposits",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestExpenseOtherLongTermDebt": {
     "auth_ref": [
      "r454"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 3.0,
       "parentTag": "us-gaap_InterestExpense",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of interest expense incurred on long-term debt classified as other, including, but not limited to, interest on long-term notes and amortization of issuance costs.",
        "label": "Interest Expense, Other Long-term Debt",
        "terseLabel": "Borrowings"
       }
      }
     },
     "localname": "InterestExpenseOtherLongTermDebt",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestExpenseSubordinatedNotesAndDebentures": {
     "auth_ref": [
      "r454"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 2.0,
       "parentTag": "us-gaap_InterestExpense",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Interest expense incurred during the reporting period on subordinated notes and debentures. Includes amortization of expenses incurred in the issuance of subordinated notes and debentures.",
        "label": "Interest Expense, Subordinated Notes and Debentures",
        "terseLabel": "Interest expense - notes and debentures (interest rate locks are less than $0.1 million)",
        "verboseLabel": "Notes and debentures"
       }
      }
     },
     "localname": "InterestExpenseSubordinatedNotesAndDebentures",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited",
      "http://www.peoples.com/role/StockholdersEquitySummaryofAmountsReclassifiedfromAOCLDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestIncomeDepositsWithFinancialInstitutions": {
     "auth_ref": [
      "r452"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 2.0,
       "parentTag": "us-gaap_InterestAndDividendIncomeOperating",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Interest income derived from funds deposited with both domestic and foreign financial institutions including funds in money market and other accounts.",
        "label": "Interest Income, Deposits with Financial Institutions",
        "terseLabel": "Short-term investments"
       }
      }
     },
     "localname": "InterestIncomeDepositsWithFinancialInstitutions",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss": {
     "auth_ref": [
      "r446"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 1.0,
       "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Interest Income (Expense), after Provision for Loan Loss",
        "totalLabel": "Net interest income after provision for credit losses"
       }
      }
     },
     "localname": "InterestIncomeExpenseAfterProvisionForLoanLoss",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestIncomeExpenseNet": {
     "auth_ref": [
      "r444"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 1.0,
       "parentTag": "us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The net amount of operating interest income (expense).",
        "label": "Interest Income (Expense), Net",
        "totalLabel": "Net interest income"
       }
      }
     },
     "localname": "InterestIncomeExpenseNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestPaidNet": {
     "auth_ref": [
      "r80",
      "r85",
      "r93"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Interest Paid, Excluding Capitalized Interest, Operating Activities",
        "terseLabel": "Interest payments"
       }
      }
     },
     "localname": "InterestPaidNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestRateLockCommitmentsMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Commitments to extend credit where the interest rate is locked in advance of funds being disbursed for a specified period of time.",
        "label": "Interest Rate Lock Commitments [Member]",
        "terseLabel": "Interest rate-lock commitments on residential mortgage loans"
       }
      }
     },
     "localname": "InterestRateLockCommitmentsMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesImpactonIncomeandAOCIDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_InterestRateSwapMember": {
     "auth_ref": [
      "r345"
     ],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Interest Rate Swap [Member]",
        "terseLabel": "Interest rate swaps"
       }
      }
     },
     "localname": "InterestRateSwapMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesAdditionalInformationDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesImpactonIncomeandAOCIDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail",
      "http://www.peoples.com/role/StockholdersEquitySummaryofAmountsReclassifiedfromAOCLDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_InternalCreditAssessmentAxis": {
     "auth_ref": [
      "r146",
      "r217",
      "r223",
      "r224",
      "r264",
      "r350"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by entity-defined rating.",
        "label": "Internal Credit Assessment [Axis]",
        "terseLabel": "Internal Credit Assessment [Axis]"
       }
      }
     },
     "localname": "InternalCreditAssessmentAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansScheduleofRetailLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansSummaryofCreditQualityIndicatorsbyClassofLoanDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_InternalCreditAssessmentDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Entity defined credit risk rating.",
        "label": "Internal Credit Assessment [Domain]",
        "terseLabel": "Internal Credit Assessment [Domain]"
       }
      }
     },
     "localname": "InternalCreditAssessmentDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansScheduleofRetailLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansSummaryofCreditQualityIndicatorsbyClassofLoanDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_InvestmentAdvisoryManagementAndAdministrativeServiceMember": {
     "auth_ref": [
      "r274"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Investment advisory, asset management and administrative service. Includes, but is not limited to, distribution and shareholder service; and accounting, tax, legal, regulatory filing, share registration and shareholder correspondence activities.",
        "label": "Investment Advisory, Management and Administrative Service [Member]",
        "terseLabel": "Investment management fees"
       }
      }
     },
     "localname": "InvestmentAdvisoryManagementAndAdministrativeServiceMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_InvestmentHoldingsLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Investment Holdings [Line Items]",
        "terseLabel": "Investment Holdings [Line Items]"
       }
      }
     },
     "localname": "InvestmentHoldingsLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAvailableforSaleandHeldtoMaturityDebtSecuritiesGainsLossesDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_InvestmentHoldingsTable": {
     "auth_ref": [
      "r491",
      "r493",
      "r495",
      "r496"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The investment holdings table is used for any listing of investments. The \"Investment [Axis]\" identifies the investment for which the line items apply. The other axes are used for categorizing the investments and creating useful subtotals. These axes cover different categorizations. The appropriate axes are expected to be used. Additional axes can be added for alternative categorizations.",
        "label": "Investment Holdings [Table]",
        "terseLabel": "Investment Holdings [Table]"
       }
      }
     },
     "localname": "InvestmentHoldingsTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAvailableforSaleandHeldtoMaturityDebtSecuritiesGainsLossesDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_InvestmentInterestRate": {
     "auth_ref": [
      "r174",
      "r188"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Rate of interest on investment.",
        "label": "Investment Interest Rate",
        "terseLabel": "Investment interest rate"
       }
      }
     },
     "localname": "InvestmentInterestRate",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_InvestmentTypeAxis": {
     "auth_ref": [
      "r490",
      "r492",
      "r494",
      "r497"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of investments.",
        "label": "Investment Type [Axis]",
        "terseLabel": "Investment Type [Axis]"
       }
      }
     },
     "localname": "InvestmentTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_InvestmentTypeCategorizationMember": {
     "auth_ref": [
      "r490",
      "r492",
      "r494",
      "r497"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Asset obtained to generate income or appreciate in value.",
        "label": "Investments [Domain]",
        "terseLabel": "Investments [Domain]"
       }
      }
     },
     "localname": "InvestmentTypeCategorizationMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments.",
        "label": "Investments Classified by Contractual Maturity Date [Table Text Block]",
        "terseLabel": "Summary of Amortized Cost and Fair Value of Debt Securities Based on Remaining Period to Contractual Maturity"
       }
      }
     },
     "localname": "InvestmentsClassifiedByContractualMaturityDateTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_LaborAndRelatedExpense": {
     "auth_ref": [
      "r66"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 1.0,
       "parentTag": "us-gaap_NoninterestExpense",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of expense for salary, wage, profit sharing; incentive and equity-based compensation; and other employee benefit.",
        "label": "Labor and Related Expense",
        "terseLabel": "Compensation and benefits"
       }
      }
     },
     "localname": "LaborAndRelatedExpense",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LeaseAndRentalExpense": {
     "auth_ref": [],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 7.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      },
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 7.0,
       "parentTag": "us-gaap_NoninterestExpense",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.",
        "label": "Operating Leases, Rent Expense",
        "terseLabel": "Operating lease expense",
        "verboseLabel": "Expense related to operating leases"
       }
      }
     },
     "localname": "LeaseAndRentalExpense",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited",
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LeaseCost": {
     "auth_ref": [
      "r394",
      "r396"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesCostandSupplementalInformationDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lease cost recognized by lessee for lease contract.",
        "label": "Lease, Cost",
        "totalLabel": "Net lease cost"
       }
      }
     },
     "localname": "LeaseCost",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesCostandSupplementalInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LeaseCostTableTextBlock": {
     "auth_ref": [
      "r394"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income.",
        "label": "Lease, Cost [Table Text Block]",
        "terseLabel": "Lease Costs"
       }
      }
     },
     "localname": "LeaseCostTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_LeaseIncome": {
     "auth_ref": [
      "r402"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesScheduleofLeaseIncomeDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lease income from operating, direct financing, and sales-type leases. Includes, but is not limited to, variable lease payments, interest income, profit (loss) recognized at commencement, and lease payments paid and payable to lessor.",
        "label": "Lease Income",
        "totalLabel": "Total lease income"
       }
      }
     },
     "localname": "LeaseIncome",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesScheduleofLeaseIncomeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LeasesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Leases [Abstract]"
       }
      }
     },
     "localname": "LeasesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock": {
     "auth_ref": [
      "r395"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position.",
        "label": "Lessee, Operating Lease, Liability, Maturity [Table Text Block]",
        "terseLabel": "Schedule of Contractual Maturities of Lease Liabilities"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityMaturityTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue": {
     "auth_ref": [
      "r395"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      },
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails_1": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for operating lease.",
        "label": "Lessee, Operating Lease, Liability, Payments, Due",
        "totalLabel": "Total lease payments"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive": {
     "auth_ref": [
      "r395"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails_1": {
       "order": 6.0,
       "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for operating lease, due after fifth fiscal year following latest fiscal year.",
        "label": "Lessee, Operating Lease, Liability, Payments, Due after Year Five",
        "terseLabel": "Later years"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive": {
     "auth_ref": [
      "r395"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails_1": {
       "order": 3.0,
       "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for operating lease, due in fifth fiscal year following latest fiscal year.",
        "label": "Lessee, Operating Lease, Liability, Payments, Due Year Five",
        "terseLabel": "2024"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearFive",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour": {
     "auth_ref": [
      "r395"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails_1": {
       "order": 4.0,
       "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for operating lease, due in fourth fiscal year following latest fiscal year.",
        "label": "Lessee, Operating Lease, Liability, Payments, Due Year Four",
        "terseLabel": "2023"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearFour",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree": {
     "auth_ref": [
      "r395"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails_1": {
       "order": 1.0,
       "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for operating lease, due in third fiscal year following latest fiscal year.",
        "label": "Lessee, Operating Lease, Liability, Payments, Due Year Three",
        "terseLabel": "2022"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearThree",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo": {
     "auth_ref": [
      "r395"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails_1": {
       "order": 2.0,
       "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for operating lease, due in second fiscal year following latest fiscal year.",
        "label": "Lessee, Operating Lease, Liability, Payments, Due Year Two",
        "terseLabel": "2021"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearTwo",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear": {
     "auth_ref": [
      "r395"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails_1": {
       "order": 5.0,
       "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for operating lease having an initial or remaining lease term in excess of one year due in remainder of fiscal year following latest fiscal year.",
        "label": "Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year",
        "terseLabel": "2020"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount": {
     "auth_ref": [
      "r395"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease.",
        "label": "Lessee, Operating Lease, Liability, Undiscounted Excess Amount",
        "negatedTerseLabel": "Less: Interest"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityUndiscountedExcessAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeasesTextBlock": {
     "auth_ref": [
      "r397"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for operating leases of lessee. Includes, but is not limited to, description of operating lease and maturity analysis of operating lease liability.",
        "label": "Lessee, Operating Leases [Text Block]",
        "terseLabel": "Leases"
       }
      }
     },
     "localname": "LesseeOperatingLeasesTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/Leases"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_LessorDirectFinancingLeasesTextBlock": {
     "auth_ref": [
      "r404"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure of lessor's direct financing leases.",
        "label": "Lessor, Direct Financing Leases [Text Block]",
        "terseLabel": "Leases"
       }
      }
     },
     "localname": "LessorDirectFinancingLeasesTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/Leases"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_LessorSalesTypeLeasesTextBlock": {
     "auth_ref": [
      "r404"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure of lessor's sales-type leases.",
        "label": "Lessor, Sales-type Leases [Text Block]",
        "terseLabel": "Leases"
       }
      }
     },
     "localname": "LessorSalesTypeLeasesTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/Leases"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_Liabilities": {
     "auth_ref": [
      "r20"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 1.0,
       "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.",
        "label": "Liabilities",
        "totalLabel": "Total liabilities"
       }
      }
     },
     "localname": "Liabilities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Liabilities [Abstract]",
        "terseLabel": "Liabilities"
       }
      }
     },
     "localname": "LiabilitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LiabilitiesAndStockholdersEquity": {
     "auth_ref": [
      "r17",
      "r420",
      "r473"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.",
        "label": "Liabilities and Equity",
        "totalLabel": "Total liabilities and stockholders\u2019 equity"
       }
      }
     },
     "localname": "LiabilitiesAndStockholdersEquity",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilitiesFairValueDisclosure": {
     "auth_ref": [
      "r358"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value of financial and nonfinancial obligations.",
        "label": "Financial and Nonfinancial Liabilities, Fair Value Disclosure",
        "terseLabel": "Fair value of total liabilities measured at fair value on a recurring basis"
       }
      }
     },
     "localname": "LiabilitiesFairValueDisclosure",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LoanRestructuringModificationAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by concessions made to the terms of loan contracts.",
        "label": "Loan Restructuring Modification [Axis]",
        "terseLabel": "Loan Restructuring Modification [Axis]"
       }
      }
     },
     "localname": "LoanRestructuringModificationAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LoanRestructuringModificationDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Concessions made to the terms of loan contracts, including but not limited to, interest rate reductions, maturity extensions, principal forgiveness, and payment deferral.",
        "label": "Loan Restructuring Modification [Domain]",
        "terseLabel": "Loan Restructuring Modification [Domain]"
       }
      }
     },
     "localname": "LoanRestructuringModificationDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_LoansAndLeasesReceivableDeferredIncome": {
     "auth_ref": [
      "r151",
      "r158",
      "r380",
      "r436"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of deferred interest and fee income, unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of acquired loans. Excludes amounts for loans and leases covered under loss sharing agreements.",
        "label": "Loans and Leases Receivable, Deferred Income",
        "terseLabel": "Net deferred loan costs"
       }
      }
     },
     "localname": "LoansAndLeasesReceivableDeferredIncome",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LoansAndLeasesReceivableGrossCarryingAmount": {
     "auth_ref": [
      "r134"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.",
        "label": "Loans and Leases Receivable, Gross",
        "terseLabel": "Loans"
       }
      }
     },
     "localname": "LoansAndLeasesReceivableGrossCarryingAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LoansAndLeasesReceivableImpairedNonperformingNonaccrualOfInterest": {
     "auth_ref": [
      "r152"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Reflects the carrying amount of loans deemed to be questionable as to collection on which no interest is continuing to be recognized.",
        "label": "Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest",
        "terseLabel": "Early non-performing loans"
       }
      }
     },
     "localname": "LoansAndLeasesReceivableImpairedNonperformingNonaccrualOfInterest",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome": {
     "auth_ref": [
      "r134",
      "r151"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 1.0,
       "parentTag": "us-gaap_LoansAndLeasesReceivableNetReportedAmount",
       "weight": 1.0
      },
      "http://www.peoples.com/role/LoansSummaryofAgingInformationbyClassofLoanDetail": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.",
        "label": "Loans and Leases Receivable, Net of Deferred Income",
        "terseLabel": "Loans",
        "totalLabel": "Total loans"
       }
      }
     },
     "localname": "LoansAndLeasesReceivableNetOfDeferredIncome",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited",
      "http://www.peoples.com/role/LoansSummaryofAgingInformationbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofCreditQualityIndicatorsbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofLoansbyLoanPortfolioSegmentandClassDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LoansAndLeasesReceivableNetReportedAmount": {
     "auth_ref": [
      "r134",
      "r436"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 3.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.",
        "label": "Loans and Leases Receivable, Net Amount",
        "totalLabel": "Total loans, net"
       }
      }
     },
     "localname": "LoansAndLeasesReceivableNetReportedAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LoansAndLeasesReceivableNetReportedAmountAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Loans and Leases Receivable, Net Amount [Abstract]",
        "terseLabel": "Loans (notes 3, 4 and 5):"
       }
      }
     },
     "localname": "LoansAndLeasesReceivableNetReportedAmountAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LoansMember": {
     "auth_ref": [
      "r157"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "When a lender gives money or property over other debt securities sold by the issuer. In the event the issuer goes bankrupt, senior debt holders receive priority for [must receive] repayment [prior] relative to junior and unsecured (general) creditors.",
        "label": "Loans [Member]",
        "terseLabel": "Loans"
       }
      }
     },
     "localname": "LoansMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesAdditionalInformationDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_LoansReceivableHeldForSaleNetNotPartOfDisposalGroup": {
     "auth_ref": [
      "r134"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 2.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      },
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail": {
       "order": 1.0,
       "parentTag": "us-gaap_AssetsFairValueDisclosure",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after allowance for bad debt, of loan receivables held-for-sale that are not part of a disposal group. Excludes loans and leases covered under loss sharing agreements and loans classified as debt securities.",
        "label": "Loans Receivable Held-for-sale, Net, Not Part of Disposal Group",
        "terseLabel": "Loans held-for-sale (note 3)",
        "verboseLabel": "Loans held-for-sale"
       }
      }
     },
     "localname": "LoansReceivableHeldForSaleNetNotPartOfDisposalGroup",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail",
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LongTermDebt": {
     "auth_ref": [
      "r9",
      "r266",
      "r419",
      "r471"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 3.0,
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.",
        "label": "Long-term Debt",
        "terseLabel": "Notes and debentures"
       }
      }
     },
     "localname": "LongTermDebt",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited",
      "http://www.peoples.com/role/FairValueMeasurementsFinancialInstrumentsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LongtermDebtTypeAxis": {
     "auth_ref": [
      "r21"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of long-term debt.",
        "label": "Long-term Debt, Type [Axis]",
        "terseLabel": "Long-term Debt, Type [Axis]"
       }
      }
     },
     "localname": "LongtermDebtTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesAdditionalInformationDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LongtermDebtTypeDomain": {
     "auth_ref": [
      "r21",
      "r265"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Type of long-term debt arrangement, such as notes, line of credit, commercial paper, asset-based financing, project financing, letter of credit financing. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the company, if longer.",
        "label": "Long-term Debt, Type [Domain]",
        "terseLabel": "Long-term Debt, Type [Domain]"
       }
      }
     },
     "localname": "LongtermDebtTypeDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesAdditionalInformationDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_MarketableSecurities": {
     "auth_ref": [
      "r435"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 1.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of investment in marketable security.",
        "label": "Marketable Securities",
        "totalLabel": "Total securities"
       }
      }
     },
     "localname": "MarketableSecurities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_MarketableSecuritiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Marketable Securities [Abstract]",
        "terseLabel": "Securities (note 2):"
       }
      }
     },
     "localname": "MarketableSecuritiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember": {
     "auth_ref": [
      "r278"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Debt securities collateralized by real estate mortgage loans (mortgages), issued by US Government Sponsored Enterprises, such as Federal Home Loan Mortgage Corporation (FHLMC or Freddie Mac).",
        "label": "Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]",
        "terseLabel": "GSE mortgage-backed securities"
       }
      }
     },
     "localname": "MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAvailableforSaleandHeldtoMaturityDebtSecuritiesGainsLossesDetail",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesDebtSecuritiesHeldtomaturityCreditQualityDetails",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAdditionalInformationDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_MortgageBackedSecuritiesMember": {
     "auth_ref": [
      "r167",
      "r278",
      "r279",
      "r297",
      "r486"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Securities collateralized by mortgage loans.",
        "label": "Collateralized Mortgage Backed Securities [Member]",
        "terseLabel": "Mortgage-Backed Securities"
       }
      }
     },
     "localname": "MortgageBackedSecuritiesMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_NetCashProvidedByUsedInFinancingActivities": {
     "auth_ref": [
      "r84"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 3.0,
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Net Cash Provided by (Used in) Financing Activities",
        "totalLabel": "Net cash provided by (used in) financing activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInFinancingActivities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Net Cash Provided by (Used in) Financing Activities [Abstract]",
        "terseLabel": "Cash Flows from Financing Activities:"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInFinancingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NetCashProvidedByUsedInInvestingActivities": {
     "auth_ref": [
      "r84"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 2.0,
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Net Cash Provided by (Used in) Investing Activities",
        "totalLabel": "Net cash used in investing activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInInvestingActivities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Net Cash Provided by (Used in) Investing Activities [Abstract]",
        "terseLabel": "Cash Flows from Investing Activities:"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInInvestingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NetCashProvidedByUsedInOperatingActivities": {
     "auth_ref": [
      "r84",
      "r86",
      "r89"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 1.0,
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect",
       "weight": 1.0
      }
     },
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Net Cash Provided by (Used in) Operating Activities",
        "totalLabel": "Net cash provided by (used in) operating activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInOperatingActivities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Net Cash Provided by (Used in) Operating Activities [Abstract]",
        "terseLabel": "Cash Flows from Operating Activities:"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInOperatingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NetIncomeLoss": {
     "auth_ref": [
      "r54",
      "r57",
      "r64",
      "r89",
      "r125",
      "r440",
      "r476"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 12.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      },
      "http://www.peoples.com/role/ConsolidatedStatementsofComprehensiveIncomeUnaudited": {
       "order": 1.0,
       "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax",
       "weight": 1.0
      },
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.",
        "label": "Net Income (Loss) Attributable to Parent",
        "negatedTotalLabel": "Net Income (Loss) Attributable to Parent",
        "terseLabel": "Net income",
        "totalLabel": "Net income"
       }
      }
     },
     "localname": "NetIncomeLoss",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited",
      "http://www.peoples.com/role/ConsolidatedStatementsofChangesinStockholdersEquityUnaudited",
      "http://www.peoples.com/role/ConsolidatedStatementsofComprehensiveIncomeUnaudited",
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited",
      "http://www.peoples.com/role/StockholdersEquitySummaryofAmountsReclassifiedfromAOCLDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic": {
     "auth_ref": [
      "r107",
      "r111"
     ],
     "calculation": {
      "http://www.peoples.com/role/EarningsPerCommonShareDetail": {
       "order": 1.0,
       "parentTag": "us-gaap_UndistributedEarnings",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.",
        "label": "Net Income (Loss) Available to Common Stockholders, Basic",
        "terseLabel": "Net income available to common shareholders"
       }
      }
     },
     "localname": "NetIncomeLossAvailableToCommonStockholdersBasic",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited",
      "http://www.peoples.com/role/EarningsPerCommonShareDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetInvestmentInLease": {
     "auth_ref": [
      "r398"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesNetInvestmentinLeaseFinancingReceivablesDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of net investment in sales-type and direct financing lease.",
        "label": "Net Investment in Lease",
        "totalLabel": "Total net investment in lease financing receivables"
       }
      }
     },
     "localname": "NetInvestmentInLease",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesNetInvestmentinLeaseFinancingReceivablesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock": {
     "auth_ref": [
      "r109"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items.",
        "label": "New Accounting Pronouncements and Changes in Accounting Principles [Text Block]",
        "terseLabel": "New Accounting Standards"
       }
      }
     },
     "localname": "NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/NewAccountingStandards"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "New Accounting Pronouncements or Change in Accounting Principle [Line Items]",
        "terseLabel": "New Accounting Pronouncements or Change in Accounting Principle [Line Items]"
       }
      }
     },
     "localname": "NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/AllowanceForCreditLossesOffBalanceSheetDetails",
      "http://www.peoples.com/role/ScheduleofAllowanceForCreditLossesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable": {
     "auth_ref": [
      "r106",
      "r108"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Summarization of the changes in an accounting principle or a new accounting pronouncement, including the line items affected by the change and the financial effects of the change on those particular line items.",
        "label": "New Accounting Pronouncements or Change in Accounting Principle [Table]",
        "terseLabel": "New Accounting Pronouncements or Change in Accounting Principle [Table]"
       }
      }
     },
     "localname": "NewAccountingPronouncementsOrChangeInAccountingPrincipleTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/AllowanceForCreditLossesOffBalanceSheetDetails",
      "http://www.peoples.com/role/ScheduleofAllowanceForCreditLossesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NoncashInvestingAndFinancingItemsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Noncash Investing and Financing Items [Abstract]",
        "terseLabel": "Significant non-cash transactions:"
       }
      }
     },
     "localname": "NoncashInvestingAndFinancingItemsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NoncashOrPartNoncashAcquisitionInvestmentsAcquired1": {
     "auth_ref": [
      "r94",
      "r95",
      "r96"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The amount of investments that an Entity acquires in a noncash (or part noncash) acquisition. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. \"Part noncash\" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.",
        "label": "Noncash or Part Noncash Acquisition, Investments Acquired",
        "terseLabel": "Unsettled purchases of securities"
       }
      }
     },
     "localname": "NoncashOrPartNoncashAcquisitionInvestmentsAcquired1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NoncompeteAgreementsMember": {
     "auth_ref": [
      "r321"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Agreement in which one party agrees not to pursue a similar trade in competition with another party.",
        "label": "Noncompete Agreements [Member]",
        "terseLabel": "Noncompete Agreements"
       }
      }
     },
     "localname": "NoncompeteAgreementsMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/GoodwillandOtherAcquisitionRelatedIntangibleAssetsAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_NondesignatedMember": {
     "auth_ref": [
      "r335"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Derivative instrument not designated as hedging instrument under Generally Accepted Accounting Principles (GAAP).",
        "label": "Not Designated as Hedging Instrument [Member]",
        "terseLabel": "Derivatives Not Designated as Hedging Instruments"
       }
      }
     },
     "localname": "NondesignatedMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesImpactonIncomeandAOCIDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_NoninterestBearingDepositLiabilities": {
     "auth_ref": [
      "r429"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 1.0,
       "parentTag": "us-gaap_Deposits",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The aggregate amount of all domestic and foreign noninterest-bearing deposits liabilities held by the entity.",
        "label": "Noninterest-bearing Deposit Liabilities",
        "terseLabel": "Non-interest-bearing"
       }
      }
     },
     "localname": "NoninterestBearingDepositLiabilities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NoninterestExpense": {
     "auth_ref": [
      "r451"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 3.0,
       "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Total aggregate amount of all noninterest expense.",
        "label": "Noninterest Expense",
        "totalLabel": "Total non-interest expense"
       }
      }
     },
     "localname": "NoninterestExpense",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NoninterestExpenseAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Noninterest Expense [Abstract]",
        "terseLabel": "Non-interest expense:"
       }
      }
     },
     "localname": "NoninterestExpenseAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NoninterestIncome": {
     "auth_ref": [
      "r448"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 2.0,
       "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Noninterest Income",
        "totalLabel": "Total non-interest income"
       }
      }
     },
     "localname": "NoninterestIncome",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NoninterestIncomeAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Noninterest Income [Abstract]",
        "terseLabel": "Non-interest income:"
       }
      }
     },
     "localname": "NoninterestIncomeAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NoninterestIncomeOtherOperatingIncome": {
     "auth_ref": [
      "r61",
      "r438",
      "r478"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 4.0,
       "parentTag": "us-gaap_NoninterestIncome",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of revenue earned, classified as other, excluding interest income.",
        "label": "Noninterest Income, Other Operating Income",
        "terseLabel": "Other non-interest income (note 2)"
       }
      }
     },
     "localname": "NoninterestIncomeOtherOperatingIncome",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NonoperatingIncomeExpenseMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Primary financial statement caption encompassing nonoperating income (expense).",
        "label": "Nonoperating Income (Expense) [Member]",
        "terseLabel": "Nonoperating Income (Expense)"
       }
      }
     },
     "localname": "NonoperatingIncomeExpenseMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_NotesReceivableGross": {
     "auth_ref": [
      "r216"
     ],
     "calculation": {
      "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, before allowance for credit loss, of financing receivable.",
        "label": "Financing Receivable, before Allowance for Credit Loss",
        "totalLabel": "Total"
       }
      }
     },
     "localname": "NotesReceivableGross",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansScheduleofRetailLoansByRiskRatingsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OccupancyNet": {
     "auth_ref": [
      "r67",
      "r379",
      "r449"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 2.0,
       "parentTag": "us-gaap_NoninterestExpense",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Occupancy, Net",
        "terseLabel": "Occupancy and equipment"
       }
      }
     },
     "localname": "OccupancyNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OciBeforeReclassificationsNetOfTaxAttributableToParent": {
     "auth_ref": [
      "r52",
      "r60"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after tax, before reclassification adjustments, of other comprehensive income (loss), attributable to parent.",
        "label": "OCI, before Reclassifications, Net of Tax, Attributable to Parent",
        "terseLabel": "Other comprehensive income before reclassifications"
       }
      }
     },
     "localname": "OciBeforeReclassificationsNetOfTaxAttributableToParent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/StockholdersEquityScheduleofAccumulatedOtherComprehensiveLossDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OffBalanceSheetCreditLossLiability": {
     "auth_ref": [
      "r201",
      "r262"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of expected credit loss for credit exposure on off-balance-sheet commitment, including but not limited to, loan commitment, standby letter of credit, financial guarantee not accounted for as insurance. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging.",
        "label": "Off-Balance Sheet, Credit Loss, Liability",
        "periodEndLabel": "Balance at end of period",
        "periodStartLabel": "Balance at beginning of period",
        "terseLabel": "Off-Balance Sheet, Credit Loss, Liability"
       }
      }
     },
     "localname": "OffBalanceSheetCreditLossLiability",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/AllowanceForCreditLossesOffBalanceSheetDetails",
      "http://www.peoples.com/role/NewAccountingStandardsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal": {
     "auth_ref": [
      "r204"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of expense (reversal of expense) for expected credit loss for off-balance sheet credit exposure. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging.",
        "label": "Off-Balance Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal)",
        "terseLabel": "Provision charged (credited) to income"
       }
      }
     },
     "localname": "OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/AllowanceForCreditLossesOffBalanceSheetDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OffBalanceSheetCreditLossLiabilityRollforward": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Off-Balance Sheet, Credit Loss, Liability [Roll Forward]",
        "terseLabel": "Off-Balance Sheet, Credit Loss, Liability [Roll Forward]"
       }
      }
     },
     "localname": "OffBalanceSheetCreditLossLiabilityRollforward",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/AllowanceForCreditLossesOffBalanceSheetDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OffMarketFavorableLeaseMember": {
     "auth_ref": [
      "r19"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Identifiable intangible asset established upon acquisition based on a favorable difference between the terms of an acquired lease and the current market terms for that lease.",
        "label": "Off-Market Favorable Lease [Member]",
        "terseLabel": "Favorable Lease Agreement"
       }
      }
     },
     "localname": "OffMarketFavorableLeaseMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/GoodwillandOtherAcquisitionRelatedIntangibleAssetsAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_OffsettingAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Offsetting [Abstract]"
       }
      }
     },
     "localname": "OffsettingAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_OperatingLeaseCost": {
     "auth_ref": [
      "r387",
      "r396"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesCostandSupplementalInformationDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_LeaseCost",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.",
        "label": "Operating Lease, Cost",
        "terseLabel": "Operating lease cost"
       }
      }
     },
     "localname": "OperatingLeaseCost",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesCostandSupplementalInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseLeaseIncome": {
     "auth_ref": [
      "r128",
      "r399",
      "r402"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 6.0,
       "parentTag": "us-gaap_NoninterestIncome",
       "weight": 1.0
      },
      "http://www.peoples.com/role/LeasesScheduleofLeaseIncomeDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_LeaseIncome",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of operating lease income from lease payments and variable lease payments paid and payable to lessor. Includes, but is not limited to, variable lease payments not included in measurement of lease receivable.",
        "label": "Operating Lease, Lease Income",
        "terseLabel": "Operating leases"
       }
      }
     },
     "localname": "OperatingLeaseLeaseIncome",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited",
      "http://www.peoples.com/role/LeasesScheduleofLeaseIncomeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseLeaseIncomeTableTextBlock": {
     "auth_ref": [
      "r128",
      "r402"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of components of income from operating lease.",
        "label": "Operating Lease, Lease Income [Table Text Block]",
        "terseLabel": "Lease Income"
       }
      }
     },
     "localname": "OperatingLeaseLeaseIncomeTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Lessee, Operating Lease, Liability, Payment, Due [Abstract]",
        "terseLabel": "Operating Leases"
       }
      }
     },
     "localname": "OperatingLeaseLiabilitiesPaymentsDueAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OperatingLeaseLiability": {
     "auth_ref": [
      "r382"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease.",
        "label": "Operating Lease, Liability",
        "terseLabel": "Total lease liabilities",
        "verboseLabel": "Operating leases"
       }
      }
     },
     "localname": "OperatingLeaseLiability",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesAdditionalInformationDetails",
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails",
      "http://www.peoples.com/role/LeasesCostandSupplementalInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeasePayments": {
     "auth_ref": [
      "r385",
      "r390"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.",
        "label": "Operating Lease, Payments",
        "terseLabel": "Reported in operating cash from operating leases"
       }
      }
     },
     "localname": "OperatingLeasePayments",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesCostandSupplementalInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseRightOfUseAsset": {
     "auth_ref": [
      "r381"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's right to use underlying asset under operating lease.",
        "label": "Operating Lease, Right-of-Use Asset",
        "terseLabel": "Operating leases"
       }
      }
     },
     "localname": "OperatingLeaseRightOfUseAsset",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesAdditionalInformationDetails",
      "http://www.peoples.com/role/LeasesCostandSupplementalInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent": {
     "auth_ref": [
      "r393",
      "r396"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted average discount rate for operating lease calculated at point in time.",
        "label": "Operating Lease, Weighted Average Discount Rate, Percent",
        "terseLabel": "Operating leases"
       }
      }
     },
     "localname": "OperatingLeaseWeightedAverageDiscountRatePercent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesCostandSupplementalInformationDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1": {
     "auth_ref": [
      "r392",
      "r396"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.",
        "label": "Operating Lease, Weighted Average Remaining Lease Term",
        "terseLabel": "Operating leases"
       }
      }
     },
     "localname": "OperatingLeaseWeightedAverageRemainingLeaseTerm1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesCostandSupplementalInformationDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]",
        "terseLabel": "Finance Leases"
       }
      }
     },
     "localname": "OperatingLeasesFutureMinimumPaymentsDueAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseLiabilitiesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Organization, Consolidation and Presentation of Financial Statements [Abstract]"
       }
      }
     },
     "localname": "OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock": {
     "auth_ref": [
      "r1",
      "r328"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for organization, consolidation and basis of presentation of financial statements disclosure.",
        "label": "Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]",
        "terseLabel": "General"
       }
      }
     },
     "localname": "OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/General"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_OtherAssets": {
     "auth_ref": [
      "r6",
      "r417",
      "r469"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 8.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      },
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail": {
       "order": 3.0,
       "parentTag": "us-gaap_AssetsFairValueDisclosure",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of assets classified as other.",
        "label": "Other Assets",
        "terseLabel": "Other assets",
        "verboseLabel": "Other assets (notes 1, 3, 5 and 13)"
       }
      }
     },
     "localname": "OtherAssets",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherAssetsMember": {
     "auth_ref": [
      "r337",
      "r354"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Primary financial statement caption encompassing other assets.",
        "label": "Other Assets [Member]",
        "terseLabel": "Other Assets"
       }
      }
     },
     "localname": "OtherAssetsMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_OtherBorrowings": {
     "auth_ref": [
      "r431"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The carrying amount as of the balance sheet date for the aggregate of other miscellaneous borrowings owed by the reporting entity.",
        "label": "Other Borrowings",
        "terseLabel": "Other borrowings"
       }
      }
     },
     "localname": "OtherBorrowings",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsFinancialInstrumentsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostCreditArisingDuringPeriodBeforeTax": {
     "auth_ref": [
      "r48",
      "r50",
      "r285"
     ],
     "calculation": {
      "http://www.peoples.com/role/EmployeeBenefitPlansComponentsofNetPeriodicBenefitIncomeExpenseandOtherAmountsDetail": {
       "order": 2.0,
       "parentTag": "us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, before tax, of cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit).",
        "label": "Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), before Tax",
        "terseLabel": "Prior service credit"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostCreditArisingDuringPeriodBeforeTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansComponentsofNetPeriodicBenefitIncomeExpenseandOtherAmountsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax": {
     "auth_ref": [
      "r42",
      "r43",
      "r50"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofComprehensiveIncomeUnaudited": {
       "order": 2.0,
       "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after tax and reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities. Excludes amounts related to other than temporary impairment (OTTI) loss.",
        "label": "Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax",
        "terseLabel": "Net unrealized gains and losses on debt securities available-for-sale"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofComprehensiveIncomeUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax": {
     "auth_ref": [
      "r41",
      "r50"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofComprehensiveIncomeUnaudited": {
       "order": 4.0,
       "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax",
        "terseLabel": "Net unrealized gains and losses on derivatives accounted for as cash flow hedges"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofComprehensiveIncomeUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTaxParent": {
     "auth_ref": [
      "r50"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, before tax and after reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness, attributable to parent.",
        "label": "Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax, Parent",
        "terseLabel": "Amount of Pre-Tax Gain (Loss) Recognized in AOCL"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTaxParent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesImpactonIncomeandAOCIDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Other Comprehensive Income (Loss), Net of Tax [Abstract]",
        "terseLabel": "Other comprehensive income, net of tax:"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofComprehensiveIncomeUnaudited"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent": {
     "auth_ref": [
      "r55",
      "r58",
      "r324",
      "r325",
      "r326"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofComprehensiveIncomeUnaudited": {
       "order": 2.0,
       "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after tax of other comprehensive income (loss) attributable to parent entity.",
        "label": "Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent",
        "terseLabel": "Total other comprehensive income (loss), net of tax (note 6)",
        "totalLabel": "Total other comprehensive income, net of tax (note 6)",
        "verboseLabel": "Current period other comprehensive income"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofChangesinStockholdersEquityUnaudited",
      "http://www.peoples.com/role/ConsolidatedStatementsofComprehensiveIncomeUnaudited",
      "http://www.peoples.com/role/StockholdersEquityScheduleofAccumulatedOtherComprehensiveLossDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax": {
     "auth_ref": [
      "r47",
      "r50"
     ],
     "calculation": {
      "http://www.peoples.com/role/EmployeeBenefitPlansComponentsofNetPeriodicBenefitIncomeExpenseandOtherAmountsDetail": {
       "order": 2.0,
       "parentTag": "us-gaap_AmountRecognizedInNetPeriodicBenefitCostAndOtherComprehensiveIncomeLossBeforeTax",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, before tax, after reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan.",
        "label": "Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax",
        "totalLabel": "Total pre-tax changes recognized in other comprehensive income (loss)"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansComponentsofNetPeriodicBenefitIncomeExpenseandOtherAmountsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax": {
     "auth_ref": [
      "r47",
      "r50"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofComprehensiveIncomeUnaudited": {
       "order": 1.0,
       "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after tax and reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan.",
        "label": "Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax",
        "negatedLabel": "Net actuarial gains and losses related to pension and other postretirement plans"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofComprehensiveIncomeUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax": {
     "auth_ref": [
      "r45",
      "r50",
      "r285"
     ],
     "calculation": {
      "http://www.peoples.com/role/EmployeeBenefitPlansComponentsofNetPeriodicBenefitIncomeExpenseandOtherAmountsDetail": {
       "order": 1.0,
       "parentTag": "us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, before tax, of gain (loss) for (increase) decrease in value of benefit obligation for change in actuarial assumptions and increase (decrease) in value of plan assets from experience different from that assumed of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.",
        "label": "Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax",
        "negatedLabel": "Net actuarial loss"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansComponentsofNetPeriodicBenefitIncomeExpenseandOtherAmountsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax": {
     "auth_ref": [
      "r41",
      "r50",
      "r356"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount before tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).",
        "label": "Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax",
        "verboseLabel": "Unrealized gain (loss) on derivatives"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherDebtSecuritiesMember": {
     "auth_ref": [
      "r189",
      "r228",
      "r278",
      "r365"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Investments in debt securities classified as other.",
        "label": "Other Debt Obligations [Member]",
        "terseLabel": "Other"
       }
      }
     },
     "localname": "OtherDebtSecuritiesMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAvailableforSaleandHeldtoMaturityDebtSecuritiesGainsLossesDetail",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesDebtSecuritiesHeldtomaturityCreditQualityDetails",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_OtherLiabilities": {
     "auth_ref": [
      "r432"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 4.0,
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of liabilities classified as other.",
        "label": "Other Liabilities",
        "terseLabel": "Other liabilities (notes 1, 4, 5 and 13)"
       }
      }
     },
     "localname": "OtherLiabilities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherNoninterestExpense": {
     "auth_ref": [
      "r451"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 6.0,
       "parentTag": "us-gaap_NoninterestExpense",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of noninterest expense classified as other.",
        "label": "Other Noninterest Expense",
        "terseLabel": "Other non-interest expense"
       }
      }
     },
     "localname": "OtherNoninterestExpense",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited",
      "http://www.peoples.com/role/StockholdersEquitySummaryofAmountsReclassifiedfromAOCLDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember": {
     "auth_ref": [
      "r276",
      "r288",
      "r289",
      "r300"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Plan designed to provide other postretirement benefits. Includes, but is not limited to, defined benefit and defined contribution plans. Excludes pension benefits.",
        "label": "Other Postretirement Benefits Plan [Member]",
        "terseLabel": "Other Postretirement\u00a0Plan"
       }
      }
     },
     "localname": "OtherPostretirementBenefitPlansDefinedBenefitMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansComponentsofNetPeriodicBenefitIncomeExpenseandOtherAmountsDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_OtherRealEstateAndForeclosedAssets": {
     "auth_ref": [
      "r427"
     ],
     "calculation": {
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail": {
       "order": 3.0,
       "parentTag": "us-gaap_AssetsFairValueDisclosure",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Carrying amount as of the balance sheet date of other real estate and foreclosed assets. Other real estate may include 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. Foreclosed assets include all assets obtained in full or partial satisfaction of a debt arrangement through foreclosure proceedings.",
        "label": "Other Real Estate, Foreclosed Assets, and Repossessed Assets",
        "terseLabel": "REO and repossessed assets"
       }
      }
     },
     "localname": "OtherRealEstateAndForeclosedAssets",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherThanTemporaryImpairmentLossDebtSecuritiesPortionRecognizedInEarnings": {
     "auth_ref": [
      "r166"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of other-than-temporary impairment (OTTI) on investment in debt security, recognized in earnings.",
        "label": "Other-than-temporary Impairment Loss, Debt Securities, Portion Recognized in Earnings",
        "terseLabel": "Other-than-temporary impairment losses recognized in earnings"
       }
      }
     },
     "localname": "OtherThanTemporaryImpairmentLossDebtSecuritiesPortionRecognizedInEarnings",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic": {
     "auth_ref": [
      "r116"
     ],
     "calculation": {
      "http://www.peoples.com/role/EarningsPerCommonShareDetail": {
       "order": 2.0,
       "parentTag": "us-gaap_UndistributedEarnings",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Participating Securities, Distributed and Undistributed Earnings (Loss), Basic",
        "negatedLabel": "Dividends paid on and undistributed earnings allocated to participating\u00a0securities"
       }
      }
     },
     "localname": "ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EarningsPerCommonShareDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PassMember": {
     "auth_ref": [
      "r146",
      "r217"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A category of financing receivables not considered to be special mention, substandard, doubtful, and loss receivables.",
        "label": "Pass [Member]",
        "terseLabel": "Pass"
       }
      }
     },
     "localname": "PassMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansSummaryofCreditQualityIndicatorsbyClassofLoanDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PastDueFinancingReceivablesTableTextBlock": {
     "auth_ref": [
      "r154",
      "r155",
      "r209",
      "r225"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of aging analysis for financing receivable.",
        "label": "Financing Receivable, Past Due [Table Text Block]",
        "terseLabel": "Summary of Aging Information by Class of Loan"
       }
      }
     },
     "localname": "PastDueFinancingReceivablesTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_PaymentDeferralMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Loan modification for a temporary postponement of loan payments.",
        "label": "Payment Deferral [Member]",
        "terseLabel": "Payment Deferral"
       }
      }
     },
     "localname": "PaymentDeferralMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PaymentsForOriginationAndPurchasesOfLoansHeldForSale": {
     "auth_ref": [
      "r82"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 8.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The aggregate amount of cash outflow for loans purchased and created with the intention to resell them in the near future.",
        "label": "Payments for Origination and Purchases of Loans Held-for-sale",
        "negatedTerseLabel": "Originations of loans held-for-sale"
       }
      }
     },
     "localname": "PaymentsForOriginationAndPurchasesOfLoansHeldForSale",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsForProceedsFromFederalHomeLoanBankStock": {
     "auth_ref": [
      "r105"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 7.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash outflow (inflow) from acquisition (sale) of Federal Home Loan Bank (FHLBank) stock.",
        "label": "Payments for (Proceeds from) Federal Home Loan Bank Stock",
        "negatedLabel": "Net (purchases) redemptions of Federal Home Loan Bank stock"
       }
      }
     },
     "localname": "PaymentsForProceedsFromFederalHomeLoanBankStock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsForProceedsFromFederalReserveBankStock": {
     "auth_ref": [
      "r105"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 6.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash outflow (inflow) from acquisition or sale of Federal Reserve Bank (FRB) stock.",
        "label": "Payments for (Proceeds from) Federal Reserve Bank Stock",
        "negatedLabel": "Net purchases of Federal Reserve Bank stock"
       }
      }
     },
     "localname": "PaymentsForProceedsFromFederalReserveBankStock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsForRepurchaseOfCommonStock": {
     "auth_ref": [
      "r77"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 5.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash outflow to reacquire common stock during the period.",
        "label": "Payments for Repurchase of Common Stock",
        "negatedLabel": "Repurchases of common stock"
       }
      }
     },
     "localname": "PaymentsForRepurchaseOfCommonStock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsOfDividendsCommonStock": {
     "auth_ref": [
      "r77"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 4.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity.",
        "label": "Payments of Ordinary Dividends, Common Stock",
        "negatedLabel": "Cash dividends paid on common stock"
       }
      }
     },
     "localname": "PaymentsOfDividendsCommonStock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock": {
     "auth_ref": [
      "r77"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 2.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash outflow in the form of ordinary dividends to preferred shareholders of the parent entity.",
        "label": "Payments of Ordinary Dividends, Preferred Stock and Preference Stock",
        "negatedLabel": "Cash dividends paid on preferred stock"
       }
      }
     },
     "localname": "PaymentsOfDividendsPreferredStockAndPreferenceStock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt": {
     "auth_ref": [
      "r68",
      "r72",
      "r165"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 4.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "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).",
        "label": "Payments to Acquire Debt Securities, Available-for-sale",
        "negatedLabel": "Purchases of debt securities available-for-sale"
       }
      }
     },
     "localname": "PaymentsToAcquireAvailableForSaleSecuritiesDebt",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired": {
     "auth_ref": [
      "r73"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 13.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.",
        "label": "Payments to Acquire Businesses, Net of Cash Acquired",
        "negatedLabel": "Net cash paid in acquisitions"
       }
      }
     },
     "localname": "PaymentsToAcquireBusinessesNetOfCashAcquired",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsToAcquireEquipmentOnLease": {
     "auth_ref": [
      "r74"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 10.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash outflow for payments to acquire rented equipment which is recorded as an asset.",
        "label": "Payments to Acquire Equipment on Lease",
        "negatedLabel": "Purchases of leased equipment, net"
       }
      }
     },
     "localname": "PaymentsToAcquireEquipmentOnLease",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsToAcquireHeldToMaturitySecurities": {
     "auth_ref": [
      "r72",
      "r165"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 5.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash outflow through purchase of long-term held-to-maturity securities.",
        "label": "Payments to Acquire Held-to-maturity Securities",
        "negatedLabel": "Purchases of debt securities held-to-maturity"
       }
      }
     },
     "localname": "PaymentsToAcquireHeldToMaturitySecurities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsToAcquireLoansHeldForInvestment": {
     "auth_ref": [
      "r72"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 14.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash outflow associated with purchasing loans held for investment purposes during the period.",
        "label": "Payments to Acquire Loans Held-for-investment",
        "negatedTerseLabel": "Purchases of loans"
       }
      }
     },
     "localname": "PaymentsToAcquireLoansHeldForInvestment",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsToAcquirePropertyPlantAndEquipment": {
     "auth_ref": [
      "r74"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 9.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.",
        "label": "Payments to Acquire Property, Plant, and Equipment",
        "negatedLabel": "Purchases of premises and equipment"
       }
      }
     },
     "localname": "PaymentsToAcquirePropertyPlantAndEquipment",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock": {
     "auth_ref": [
      "r302"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for pension and other postretirement benefits.",
        "label": "Pension and Other Postretirement Benefits Disclosure [Text Block]",
        "terseLabel": "Employee Benefit Plans"
       }
      }
     },
     "localname": "PensionAndOtherPostretirementBenefitsDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlans"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_PensionAndOtherPostretirementPlansPolicy": {
     "auth_ref": [
      "r98",
      "r288",
      "r298",
      "r299",
      "r300",
      "r301"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for pension and other postretirement benefit plans. This accounting policy may address (1) the types of plans sponsored by the entity, and the benefits provided by each plan (2) groups that participate in (or are covered by) each plan (3) how plan assets, liabilities and expenses are measured, including the use of any actuaries and (4) significant assumptions used by the entity to value plan assets and liabilities and how such assumptions are derived.",
        "label": "Pension and Other Postretirement Plans, Policy [Policy Text Block]",
        "terseLabel": "People's United Employee Pension and Other Postretirement Plans"
       }
      }
     },
     "localname": "PensionAndOtherPostretirementPlansPolicy",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_PensionPlansDefinedBenefitMember": {
     "auth_ref": [
      "r275",
      "r288",
      "r289",
      "r300"
     ],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Pension Plan [Member]",
        "terseLabel": "Pension\u00a0Plans"
       }
      }
     },
     "localname": "PensionPlansDefinedBenefitMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansComponentsofNetPeriodicBenefitIncomeExpenseandOtherAmountsDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PlanNameAxis": {
     "auth_ref": [
      "r304",
      "r306"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by plan name for share-based payment arrangement.",
        "label": "Plan Name [Axis]",
        "terseLabel": "Plan Name [Axis]"
       }
      }
     },
     "localname": "PlanNameAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/StockholdersEquityAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_PlanNameDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Plan name for share-based payment arrangement.",
        "label": "Plan Name [Domain]",
        "terseLabel": "Plan Name [Domain]"
       }
      }
     },
     "localname": "PlanNameDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/StockholdersEquityAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PledgedFinancialInstrumentsNotSeparatelyReportedOtherDebtSecuritiesAvailableForSaleOrHeldForInvestment": {
     "auth_ref": [
      "r410"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The carrying amount as of the date of the latest financial statement presented of other securities classified as available for sale or held for investment which are owned but transferred to another party to serve as collateral to partially or fully secure a debt obligation, repurchase agreement or other current or potential obligation, and for which the transferee does not have the right by contract or custom to sell or re-pledge them to an unrelated party.",
        "label": "Pledged Financial Instruments, Not Separately Reported, Other Debt Securities Available-for-sale or Held-for-investment",
        "terseLabel": "Debt security available for sale with a fair value pledged with collateral for public deposits"
       }
      }
     },
     "localname": "PledgedFinancialInstrumentsNotSeparatelyReportedOtherDebtSecuritiesAvailableForSaleOrHeldForInvestment",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PledgedFinancialInstrumentsNotSeparatelyReportedOtherDebtSecuritiesHeldToMaturity": {
     "auth_ref": [
      "r410"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The carrying amount as of the date of the latest financial statement presented of other debt securities classified as held to maturity which are owned but transferred to another party to serve as collateral to partially or fully secure a debt obligation, repurchase agreement or other current or potential obligation, and for which the transferee does not have the right by contract or custom to sell or re-pledge them to an unrelated party.",
        "label": "Pledged Financial Instruments, Not Separately Reported, Other Debt Securities Held-to-maturity",
        "terseLabel": "Debt security available for sale with a held-to-maturity pledged with collateral for public deposits"
       }
      }
     },
     "localname": "PledgedFinancialInstrumentsNotSeparatelyReportedOtherDebtSecuritiesHeldToMaturity",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PortionAtFairValueFairValueDisclosureMember": {
     "auth_ref": [
      "r370"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Measured at fair value for financial reporting purposes.",
        "label": "Portion at Fair Value Measurement [Member]",
        "terseLabel": "Portion at Fair Value Measurement [Member]"
       }
      }
     },
     "localname": "PortionAtFairValueFairValueDisclosureMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsFinancialInstrumentsDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PreferredStockDividendsAndOtherAdjustments": {
     "auth_ref": [
      "r111",
      "r123"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The aggregate value of preferred stock dividends and other adjustments necessary to derive net income apportioned to common stockholders.",
        "label": "Preferred Stock Dividends and Other Adjustments",
        "terseLabel": "Preferred stock dividend"
       }
      }
     },
     "localname": "PreferredStockDividendsAndOtherAdjustments",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PreferredStockMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Preferred shares may provide a preferential dividend to the dividend on common stock and may take precedence over common stock in the event of a liquidation. Preferred shares typically represent an ownership interest in the company.",
        "label": "Preferred Stock [Member]",
        "terseLabel": "Preferred Stock"
       }
      }
     },
     "localname": "PreferredStockMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofChangesinStockholdersEquityUnaudited"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PreferredStockParOrStatedValuePerShare": {
     "auth_ref": [
      "r11"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.",
        "label": "Preferred Stock, Par or Stated Value Per Share",
        "terseLabel": "Preferred stock par value, per share (USD per share)",
        "verboseLabel": "Preferred stock, par value (USD per share)"
       }
      }
     },
     "localname": "PreferredStockParOrStatedValuePerShare",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnauditedParenthetical",
      "http://www.peoples.com/role/StockholdersEquityAdditionalInformationDetail"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_PreferredStockSharesAuthorized": {
     "auth_ref": [
      "r11"
     ],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Preferred Stock, Shares Authorized",
        "terseLabel": "Preferred stock, shares authorized (in shares)"
       }
      }
     },
     "localname": "PreferredStockSharesAuthorized",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnauditedParenthetical",
      "http://www.peoples.com/role/StockholdersEquityAdditionalInformationDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_PreferredStockSharesIssued": {
     "auth_ref": [
      "r11"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.",
        "label": "Preferred Stock, Shares Issued",
        "terseLabel": "Preferred stock, shares issued (in shares)"
       }
      }
     },
     "localname": "PreferredStockSharesIssued",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnauditedParenthetical"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_PreferredStockSharesOutstanding": {
     "auth_ref": [
      "r11"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.",
        "label": "Preferred Stock, Shares Outstanding",
        "terseLabel": "Preferred stock, shares outstanding (in shares)"
       }
      }
     },
     "localname": "PreferredStockSharesOutstanding",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnauditedParenthetical",
      "http://www.peoples.com/role/StockholdersEquityAdditionalInformationDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_PreferredStockValue": {
     "auth_ref": [
      "r11"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 1.0,
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Preferred Stock, Value, Issued",
        "terseLabel": "Preferred stock ($0.01 par value; 50.0 million shares authorized; 10.0 million shares issued and outstanding at both dates)"
       }
      }
     },
     "localname": "PreferredStockValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromLifeInsurancePolicies": {
     "auth_ref": [
      "r71",
      "r83"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 12.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Proceeds from Life Insurance Policy",
        "terseLabel": "Return of premium on bank-owned life insurance, net"
       }
      }
     },
     "localname": "ProceedsFromLifeInsurancePolicies",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities": {
     "auth_ref": [
      "r68",
      "r69",
      "r165"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 1.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "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).",
        "label": "Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-sale",
        "terseLabel": "Proceeds from principal repayments and maturities of debt securities available-for-sale"
       }
      }
     },
     "localname": "ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities": {
     "auth_ref": [
      "r69",
      "r165"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 3.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash inflow associated with the maturity, prepayments and calls (requests for early payments) of debt securities designated as held-to-maturity.",
        "label": "Proceeds from Maturities, Prepayments and Calls of Held-to-maturity Securities",
        "terseLabel": "Proceeds from principal repayments and maturities of debt securities held-to-maturity"
       }
      }
     },
     "localname": "ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess": {
     "auth_ref": [
      "r76",
      "r78",
      "r92"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 3.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash inflow from a borrowing net of the cash outflow from repayment of a borrowing having initial term of repayment within three months.",
        "label": "Proceeds from (Repayments of) Short-term Debt, Maturing in Three Months or Less",
        "terseLabel": "Net increase (decrease) in borrowings with terms of three months or less"
       }
      }
     },
     "localname": "ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt": {
     "auth_ref": [
      "r68",
      "r69",
      "r165"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 2.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "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).",
        "label": "Proceeds from Sale of Debt Securities, Available-for-sale",
        "terseLabel": "Proceeds from sales of debt securities available-for-sale"
       }
      }
     },
     "localname": "ProceedsFromSaleOfAvailableForSaleSecuritiesDebt",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesEquity": {
     "auth_ref": [
      "r70",
      "r165"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 15.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash inflow associated with the sale of equity securities classified as available-for-sale securities.",
        "label": "Proceeds from Sale of Available-for-sale Securities, Equity",
        "terseLabel": "Proceeds from sales of equity securities"
       }
      }
     },
     "localname": "ProceedsFromSaleOfAvailableForSaleSecuritiesEquity",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromSaleOfLoansHeldForInvestment": {
     "auth_ref": [
      "r69"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 8.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash inflow from Sales of Loans Held For Investment.",
        "label": "Proceeds from Sale of Loans Held-for-investment",
        "terseLabel": "Proceeds from sales of loans"
       }
      }
     },
     "localname": "ProceedsFromSaleOfLoansHeldForInvestment",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromSaleOfLoansHeldForSale": {
     "auth_ref": [
      "r79",
      "r82"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 11.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash inflow resulting from the sale of loans classified as held-for-sale, including proceeds from loans sold through mortgage securitization.",
        "label": "Proceeds from Sale of Loans Held-for-sale",
        "terseLabel": "Proceeds from sales of loans held-for-sale"
       }
      }
     },
     "localname": "ProceedsFromSaleOfLoansHeldForSale",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromSaleOfWhollyOwnedRealEstateAndRealEstateAcquiredInSettlementOfLoans": {
     "auth_ref": [
      "r71"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 11.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash inflow from proceeds From Sales of Wholly Owned Real Estate and Real Estate Acquired in Settlement of Loans.",
        "label": "Proceeds from Sale of Wholly Owned Real Estate and Real Estate Acquired in Settlement of Loans",
        "terseLabel": "Proceeds from sales of real estate owned"
       }
      }
     },
     "localname": "ProceedsFromSaleOfWhollyOwnedRealEstateAndRealEstateAcquiredInSettlementOfLoans",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromStockOptionsExercised": {
     "auth_ref": [
      "r75",
      "r307"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 7.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash inflow from exercise of option under share-based payment arrangement.",
        "label": "Proceeds from Stock Options Exercised",
        "terseLabel": "Proceeds from stock options exercised"
       }
      }
     },
     "localname": "ProceedsFromStockOptionsExercised",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProfessionalFees": {
     "auth_ref": [
      "r488",
      "r489"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 3.0,
       "parentTag": "us-gaap_NoninterestExpense",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Professional Fees",
        "terseLabel": "Professional and outside services"
       }
      }
     },
     "localname": "ProfessionalFees",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentNet": {
     "auth_ref": [
      "r4",
      "r5",
      "r254",
      "r474"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 6.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Property, Plant and Equipment, Net",
        "terseLabel": "Premises and equipment, net"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProvisionForLoanAndLeaseLosses": {
     "auth_ref": [
      "r87",
      "r138",
      "r445"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 10.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      },
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 2.0,
       "parentTag": "us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of expense related to estimated loss from loan and lease transactions.",
        "label": "Provision for Loan and Lease Losses",
        "positiveLabel": "Provision for credit losses (notes 3 and 4)",
        "terseLabel": "Provision for credit losses"
       }
      }
     },
     "localname": "ProvisionForLoanAndLeaseLosses",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited",
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited",
      "http://www.peoples.com/role/FairValueMeasurementsAdditionalInformationDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProvisionForLoanLossesExpensed": {
     "auth_ref": [
      "r204",
      "r426",
      "r437"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of credit loss expense (reversal of expense) for financing receivable.",
        "label": "Financing Receivable, Credit Loss, Expense (Reversal)",
        "terseLabel": "Provision for credit losses"
       }
      }
     },
     "localname": "ProvisionForLoanLossesExpensed",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ScheduleofAllowanceForCreditLossesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_QualifiedAffordableHousingProjectInvestmentsCommitment": {
     "auth_ref": [
      "r198"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of commitment or contingent commitments to qualified affordable housing project investments.",
        "label": "Qualified Affordable Housing Project Investments, Commitment",
        "terseLabel": "Future contingent commitments"
       }
      }
     },
     "localname": "QualifiedAffordableHousingProjectInvestmentsCommitment",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/GeneralDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RealEstateAcquiredThroughForeclosure": {
     "auth_ref": [
      "r135",
      "r136"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Real Estate Acquired Through Foreclosure",
        "terseLabel": "Real estate owned"
       }
      }
     },
     "localname": "RealEstateAcquiredThroughForeclosure",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail",
      "http://www.peoples.com/role/LoansAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RealEstateAcquisitionsThroughForeclosures": {
     "auth_ref": [
      "r499"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of real estate investments acquired through foreclosure for entities with a substantial portion of business acquiring and holding investment real estate.",
        "label": "SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Acquisition Through Foreclosure",
        "terseLabel": "Real estate properties acquired by foreclosure"
       }
      }
     },
     "localname": "RealEstateAcquisitionsThroughForeclosures",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ReceivableTypeDomain": {
     "auth_ref": [
      "r25"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Financing arrangement representing a contractual right to receive money either on demand or on fixed and determinable dates.",
        "label": "Receivable [Domain]",
        "terseLabel": "Receivable [Domain]"
       }
      }
     },
     "localname": "ReceivableTypeDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansSummaryofCreditQualityIndicatorsbyClassofLoanDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ReceivablesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Receivables [Abstract]"
       }
      }
     },
     "localname": "ReceivablesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent": {
     "auth_ref": [
      "r52",
      "r60"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after tax of reclassification adjustments of other comprehensive income (loss) attributable to parent.",
        "label": "Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent",
        "negatedLabel": "Amounts reclassified from AOCL"
       }
      }
     },
     "localname": "ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/StockholdersEquityScheduleofAccumulatedOtherComprehensiveLossDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by item reclassified out of accumulated other comprehensive income (loss).",
        "label": "Reclassification out of Accumulated Other Comprehensive Income [Axis]",
        "terseLabel": "Reclassification out of Accumulated Other Comprehensive Income [Axis]"
       }
      }
     },
     "localname": "ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/StockholdersEquitySummaryofAmountsReclassifiedfromAOCLDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Item reclassified out of accumulated other comprehensive income (loss).",
        "label": "Reclassification out of Accumulated Other Comprehensive Income [Domain]",
        "terseLabel": "Reclassification out of Accumulated Other Comprehensive Income [Domain]"
       }
      }
     },
     "localname": "ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/StockholdersEquitySummaryofAmountsReclassifiedfromAOCLDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Identifies item reclassified out of accumulated other comprehensive income (loss).",
        "label": "Reclassification out of Accumulated Other Comprehensive Income [Member]",
        "terseLabel": "Reclassification out of AOCL"
       }
      }
     },
     "localname": "ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/StockholdersEquitySummaryofAmountsReclassifiedfromAOCLDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of information about items reclassified out of accumulated other comprehensive income (loss).",
        "label": "Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]",
        "terseLabel": "Summary of Amounts Reclassified from AOCL"
       }
      }
     },
     "localname": "ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/StockholdersEquityTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_RepaymentsOfShortTermDebtMaturingInMoreThanThreeMonths": {
     "auth_ref": [
      "r78"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 1.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash outflow from a repayment of a borrowing having initial term of repayment of more than three months but less than one year or one operating cycle (if the normal cycle is more than one year).",
        "label": "Repayments of Short-term Debt, Maturing in More than Three Months",
        "negatedLabel": "Repayments of borrowings with terms of more than three months"
       }
      }
     },
     "localname": "RepaymentsOfShortTermDebtMaturingInMoreThanThreeMonths",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RestrictedStockExpense": {
     "auth_ref": [
      "r88"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited": {
       "order": 1.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of noncash expense for award of restricted stock or unit under share-based payment arrangement.",
        "label": "Restricted Stock or Unit Expense",
        "terseLabel": "ESOP common stock committed to be released"
       }
      }
     },
     "localname": "RestrictedStockExpense",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RetainedEarningsAccumulatedDeficit": {
     "auth_ref": [
      "r14",
      "r268",
      "r472"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 4.0,
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cumulative amount of the reporting entity's undistributed earnings or deficit.",
        "label": "Retained Earnings (Accumulated Deficit)",
        "terseLabel": "Retained earnings"
       }
      }
     },
     "localname": "RetainedEarningsAccumulatedDeficit",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited",
      "http://www.peoples.com/role/NewAccountingStandardsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RetainedEarningsMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cumulative amount of the reporting entity's undistributed earnings or deficit.",
        "label": "Retained Earnings [Member]",
        "terseLabel": "Retained Earnings"
       }
      }
     },
     "localname": "RetainedEarningsMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofChangesinStockholdersEquityUnaudited",
      "http://www.peoples.com/role/ConsolidatedStatementsofChangesinStockholdersEquityUnauditedParenthetical",
      "http://www.peoples.com/role/NewAccountingStandardsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RetirementPlanTypeAxis": {
     "auth_ref": [
      "r275",
      "r276",
      "r288",
      "r289",
      "r300"
     ],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Retirement Plan Type [Axis]",
        "terseLabel": "Retirement Plan Type [Axis]"
       }
      }
     },
     "localname": "RetirementPlanTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansComponentsofNetPeriodicBenefitIncomeExpenseandOtherAmountsDetail",
      "http://www.peoples.com/role/EmployeeBenefitPlansEmployeePensionandOtherPostretirementPlansDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_RetirementPlanTypeDomain": {
     "auth_ref": [
      "r275",
      "r276",
      "r288",
      "r289",
      "r300"
     ],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Retirement Plan Type [Domain]",
        "terseLabel": "Retirement Plan Type [Domain]"
       }
      }
     },
     "localname": "RetirementPlanTypeDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansComponentsofNetPeriodicBenefitIncomeExpenseandOtherAmountsDetail",
      "http://www.peoples.com/role/EmployeeBenefitPlansEmployeePensionandOtherPostretirementPlansDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax": {
     "auth_ref": [
      "r272",
      "r273"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited": {
       "order": 5.0,
       "parentTag": "us-gaap_NoninterestIncome",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.",
        "label": "Revenue from Contract with Customer, Including Assessed Tax",
        "terseLabel": "Fees"
       }
      }
     },
     "localname": "RevenueFromContractWithCustomerIncludingAssessedTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability": {
     "auth_ref": [
      "r391",
      "r396"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase in right-of-use asset obtained in exchange for finance lease liability.",
        "label": "Right-of-Use Asset Obtained in Exchange for Finance Lease Liability",
        "terseLabel": "Finance lease liabilities"
       }
      }
     },
     "localname": "RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesCostandSupplementalInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability": {
     "auth_ref": [
      "r391",
      "r396"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase in right-of-use asset obtained in exchange for operating lease liability.",
        "label": "Right-of-Use Asset Obtained in Exchange for Operating Lease Liability",
        "terseLabel": "Operating lease liabilities",
        "verboseLabel": "Right-of-use assets obtained in exchange for lessee operating lease liabilities"
       }
      }
     },
     "localname": "RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited",
      "http://www.peoples.com/role/LeasesCostandSupplementalInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RiskLevelHighMember": {
     "auth_ref": [
      "r263",
      "r349"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "An entity's internal risk assessment as having high risk.",
        "label": "Risk Level, High [Member]",
        "terseLabel": "High risk"
       }
      }
     },
     "localname": "RiskLevelHighMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansScheduleofRetailLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansSummaryofCreditQualityIndicatorsbyClassofLoanDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RiskLevelLowMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "An entity's internal risk assessment as having low risk.",
        "label": "Risk Level, Low [Member]",
        "terseLabel": "Low risk"
       }
      }
     },
     "localname": "RiskLevelLowMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansScheduleofRetailLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansSummaryofCreditQualityIndicatorsbyClassofLoanDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RiskLevelMediumMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "An entity's internal risk assessment as having medium risk.",
        "label": "Risk Level, Medium [Member]",
        "terseLabel": "Moderate risk"
       }
      }
     },
     "localname": "RiskLevelMediumMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansScheduleofRetailLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansSummaryofCreditQualityIndicatorsbyClassofLoanDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivableMaturityTableTextBlock": {
     "auth_ref": [
      "r400"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of maturity of undiscounted cash flows to be received on annual basis for sales-type and direct financing leases receivable. Includes, but is not limited to, reconciliation to lease receivable recognized in statement of financial position.",
        "label": "Sales-type and Direct Financing Leases, Lease Receivable, Maturity [Table Text Block]",
        "terseLabel": "Contractual Maturities of Lease Financing Receivables"
       }
      }
     },
     "localname": "SalesTypeAndDirectFinancingLeasesLeaseReceivableMaturityTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived": {
     "auth_ref": [
      "r400"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseFinancingReceivablesDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      },
      "http://www.peoples.com/role/LeasesNetInvestmentinLeaseFinancingReceivablesDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_NetInvestmentInLease",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases.",
        "label": "Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received",
        "totalLabel": "Total"
       }
      }
     },
     "localname": "SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseFinancingReceivablesDetails",
      "http://www.peoples.com/role/LeasesNetInvestmentinLeaseFinancingReceivablesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFiveYears": {
     "auth_ref": [
      "r400"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseFinancingReceivablesDetails": {
       "order": 4.0,
       "parentTag": "us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in fifth fiscal year following latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest statement of financial position date.",
        "label": "Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Five Years",
        "terseLabel": "2024"
       }
      }
     },
     "localname": "SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFiveYears",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseFinancingReceivablesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFourYears": {
     "auth_ref": [
      "r400"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseFinancingReceivablesDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in fourth fiscal year following latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Four Years",
        "terseLabel": "2023"
       }
      }
     },
     "localname": "SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFourYears",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseFinancingReceivablesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedRemainderOfFiscalYear": {
     "auth_ref": [
      "r400"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseFinancingReceivablesDetails": {
       "order": 5.0,
       "parentTag": "us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in remainder of the fiscal year following latest fiscal year. Excludes interim and annual period when interim periods are reported on a rolling approach, from latest statement of financial position date.",
        "label": "Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Remainder of Fiscal Year",
        "terseLabel": "2020"
       }
      }
     },
     "localname": "SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedRemainderOfFiscalYear",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseFinancingReceivablesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThereafter": {
     "auth_ref": [
      "r400"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseFinancingReceivablesDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases after fifth fiscal year following latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest statement of financial position date.",
        "label": "Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Thereafter",
        "terseLabel": "Later years"
       }
      }
     },
     "localname": "SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThereafter",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseFinancingReceivablesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThreeYears": {
     "auth_ref": [
      "r400"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseFinancingReceivablesDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in third fiscal year following latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest statement of financial position date.",
        "label": "Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Three Years",
        "terseLabel": "2022"
       }
      }
     },
     "localname": "SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThreeYears",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseFinancingReceivablesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedTwoYears": {
     "auth_ref": [
      "r400"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseFinancingReceivablesDetails": {
       "order": 6.0,
       "parentTag": "us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in second fiscal year following latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest statement of financial position date.",
        "label": "Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Two Years",
        "terseLabel": "2021"
       }
      }
     },
     "localname": "SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedTwoYears",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesContractualMaturitiesofLeaseFinancingReceivablesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SalesTypeAndDirectFinancingLeasesProfitLoss": {
     "auth_ref": [
      "r401"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesScheduleofLeaseIncomeDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_LeaseIncome",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of profit (loss) for sales-type lease and (loss) for direct financing lease recognized at commencement.",
        "label": "Sales-type and Direct Financing Leases, Profit (Loss)",
        "terseLabel": "Lease financing receivables"
       }
      }
     },
     "localname": "SalesTypeAndDirectFinancingLeasesProfitLoss",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesScheduleofLeaseIncomeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable": {
     "auth_ref": [
      "r25"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Schedule itemizing specific 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.",
        "label": "Schedule of Accounts, Notes, Loans and Financing Receivable [Table]",
        "terseLabel": "Schedule of Accounts, Notes, Loans and Financing Receivable [Table]"
       }
      }
     },
     "localname": "ScheduleOfAccountsNotesLoansAndFinancingReceivableTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansAdditionalInformationDetail",
      "http://www.peoples.com/role/LoansSummaryofLoansbyLoanPortfolioSegmentandClassDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock": {
     "auth_ref": [
      "r52"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the components of accumulated other comprehensive income (loss).",
        "label": "Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]",
        "terseLabel": "Schedule of Accumulated Other Comprehensive Loss"
       }
      }
     },
     "localname": "ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/StockholdersEquityTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable": {
     "auth_ref": [
      "r288",
      "r289",
      "r290",
      "r291",
      "r297"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosures about an individual defined benefit pension plan or an 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).",
        "label": "Schedule of Defined Benefit Plans Disclosures [Table]",
        "terseLabel": "Schedule of Defined Benefit Plans Disclosures [Table]"
       }
      }
     },
     "localname": "ScheduleOfDefinedBenefitPlansDisclosuresTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EmployeeBenefitPlansComponentsofNetPeriodicBenefitIncomeExpenseandOtherAmountsDetail",
      "http://www.peoples.com/role/EmployeeBenefitPlansEmployeePensionandOtherPostretirementPlansDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock": {
     "auth_ref": [
      "r338",
      "r343",
      "r348"
     ],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Derivative Instruments, Gain (Loss) [Table Text Block]",
        "terseLabel": "Impact of Derivatives on Pre-Tax Income and Accumulated Other Comprehensive Loss"
       }
      }
     },
     "localname": "ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfDerivativeInstrumentsTextBlock": {
     "auth_ref": [
      "r104",
      "r329",
      "r331",
      "r332",
      "r335",
      "r336",
      "r342",
      "r343",
      "r351",
      "r353"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item.",
        "label": "Schedule of Derivative Instruments [Table Text Block]",
        "terseLabel": "Schedule of Notional Amounts and Fair Values of Derivatives Outstanding"
       }
      }
     },
     "localname": "ScheduleOfDerivativeInstrumentsTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock": {
     "auth_ref": [
      "r125"
     ],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]",
        "terseLabel": "Basic and Diluted Earnings Per Common Share, Reflecting Application of Two-Class Method"
       }
      }
     },
     "localname": "ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EarningsPerCommonShareTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock": {
     "auth_ref": [
      "r358",
      "r359"
     ],
     "lang": {
      "en-US": {
       "role": {
        "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).",
        "label": "Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]",
        "terseLabel": "Assets and Liabilities Measured at Fair Value on Recurring Basis"
       }
      }
     },
     "localname": "ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable": {
     "auth_ref": [
      "r217",
      "r224"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of information about credit quality indicator for financing receivable.",
        "label": "Financing Receivable, Credit Quality Indicator [Table]",
        "terseLabel": "Schedule of Financing Receivable, Recorded Investment, Credit Quality Indicator [Table]"
       }
      }
     },
     "localname": "ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansScheduleofRetailLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansSummaryofCreditQualityIndicatorsbyClassofLoanDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable": {
     "auth_ref": [
      "r148",
      "r150"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of information about financing receivable modified as troubled debt restructuring.",
        "label": "Financing Receivable, Troubled Debt Restructuring [Table]",
        "terseLabel": "Schedule of Financing Receivable, Troubled Debt Restructurings [Table]"
       }
      }
     },
     "localname": "ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanDetail",
      "http://www.peoples.com/role/LoansSummaryofRecordedInvestmentsinTDRsbyClassofLoanSubsequentlyDefaultedDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfFinancingReceivablesNonAccrualStatusTableTextBlock": {
     "auth_ref": [
      "r154",
      "r214"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of financing receivable on nonaccrual status.",
        "label": "Financing Receivable, Nonaccrual [Table Text Block]",
        "terseLabel": "Summarized Recorded Investments, by Class of Loan, in Originated Non-Performing Loans"
       }
      }
     },
     "localname": "ScheduleOfFinancingReceivablesNonAccrualStatusTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfFinancingReceivablesPastDueTable": {
     "auth_ref": [
      "r209",
      "r225"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of information about aging analysis for financing receivable.",
        "label": "Financing Receivable, Past Due [Table]",
        "terseLabel": "Schedule of Financing Receivables Past Due [Table]"
       }
      }
     },
     "localname": "ScheduleOfFinancingReceivablesPastDueTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansSummarizedRecordedInvestmentsbyClassofLoaninOriginatedNonPerformingLoansDetail",
      "http://www.peoples.com/role/LoansSummaryofAgingInformationbyClassofLoanDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfInvestmentsLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Schedule of Investments [Line Items]",
        "terseLabel": "Schedule of Investments [Line Items]"
       }
      }
     },
     "localname": "ScheduleOfInvestmentsLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesDebtSecuritiesHeldtomaturityCreditQualityDetails",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfInvestmentsTable": {
     "auth_ref": [
      "r491"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A container table for all schedule of investment items. It ties in the \"Legal Entity [Axis]\" to all of its contained line items.",
        "label": "Schedule of Investments [Table]",
        "terseLabel": "Schedule of Investments [Table]"
       }
      }
     },
     "localname": "ScheduleOfInvestmentsTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesDebtSecuritiesHeldtomaturityCreditQualityDetails",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_SecuritiesPurchasedUnderAgreementsToResell": {
     "auth_ref": [
      "r26",
      "r29",
      "r34",
      "r101",
      "r421"
     ],
     "calculation": {
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofCollateralSwapsDetail": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after the effects of master netting arrangements, of funds outstanding loaned in the form of a security resale agreement between the entity and another party for the purchase and resale of identical or substantially the same securities at a date certain for a specified price. Includes purchases of participations in pools of securities that are subject to a resale agreement, assets not subject to a master netting arrangement and not elected to be offset.",
        "label": "Securities Purchased under Agreements to Resell",
        "totalLabel": "Net Amount Presented"
       }
      }
     },
     "localname": "SecuritiesPurchasedUnderAgreementsToResell",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofCollateralSwapsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SecuritiesPurchasedUnderAgreementsToResellAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Securities Purchased under Agreements to Resell [Abstract]",
        "terseLabel": "Total resale agreements"
       }
      }
     },
     "localname": "SecuritiesPurchasedUnderAgreementsToResellAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofCollateralSwapsDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_SecuritiesPurchasedUnderAgreementsToResellGross": {
     "auth_ref": [
      "r27",
      "r39"
     ],
     "calculation": {
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofCollateralSwapsDetail": {
       "order": 1.0,
       "parentTag": "us-gaap_SecuritiesPurchasedUnderAgreementsToResell",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, before effects of master netting arrangements, of funds outstanding loaned in the form of a security resale agreement between the entity and another party for the purchase and resale of identical or substantially the same securities at a date certain for a specified price. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.",
        "label": "Securities Purchased under Agreements to Resell, Gross",
        "terseLabel": "Gross Amount Recognized"
       }
      }
     },
     "localname": "SecuritiesPurchasedUnderAgreementsToResellGross",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofCollateralSwapsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SecuritiesPurchasedUnderAgreementsToResellLiability": {
     "auth_ref": [
      "r28",
      "r40"
     ],
     "calculation": {
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofCollateralSwapsDetail": {
       "order": 2.0,
       "parentTag": "us-gaap_SecuritiesPurchasedUnderAgreementsToResell",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of liability associated with funds outstanding loaned in the form of a security resale agreement between the entity and another party for the purchase and resale of identical or substantially the same securities at a date certain for a specified price.",
        "label": "Securities Purchased under Agreements to Resell, Liability",
        "negatedLabel": "Gross Amount Offset"
       }
      }
     },
     "localname": "SecuritiesPurchasedUnderAgreementsToResellLiability",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofCollateralSwapsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SecuritiesSoldUnderAgreementsToRepurchase": {
     "auth_ref": [
      "r26",
      "r29",
      "r34",
      "r102",
      "r430"
     ],
     "calculation": {
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofCollateralSwapsDetail": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      },
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 3.0,
       "parentTag": "pbct_BorrowedFundsExcludingLongTermDebt",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after the effects of master netting arrangements, of funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement and not elected to be offset.",
        "label": "Securities Sold under Agreements to Repurchase",
        "terseLabel": "Customer repurchase agreements",
        "totalLabel": "Net Amount Presented"
       }
      }
     },
     "localname": "SecuritiesSoldUnderAgreementsToRepurchase",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofCollateralSwapsDetail",
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited",
      "http://www.peoples.com/role/FairValueMeasurementsFinancialInstrumentsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Securities Sold under Agreements to Repurchase [Abstract]",
        "terseLabel": "Total repurchase agreements"
       }
      }
     },
     "localname": "SecuritiesSoldUnderAgreementsToRepurchaseAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofCollateralSwapsDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseAsset": {
     "auth_ref": [
      "r28",
      "r40"
     ],
     "calculation": {
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofCollateralSwapsDetail": {
       "order": 2.0,
       "parentTag": "us-gaap_SecuritiesSoldUnderAgreementsToRepurchase",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of asset associated with funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price.",
        "label": "Securities Sold under Agreements to Repurchase, Asset",
        "negatedLabel": "Gross Amount Offset"
       }
      }
     },
     "localname": "SecuritiesSoldUnderAgreementsToRepurchaseAsset",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofCollateralSwapsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseGross": {
     "auth_ref": [
      "r27",
      "r39"
     ],
     "calculation": {
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofCollateralSwapsDetail": {
       "order": 1.0,
       "parentTag": "us-gaap_SecuritiesSoldUnderAgreementsToRepurchase",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, before effects of master netting arrangements, of funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.",
        "label": "Securities Sold under Agreements to Repurchase, Gross",
        "terseLabel": "Gross Amount Recognized"
       }
      }
     },
     "localname": "SecuritiesSoldUnderAgreementsToRepurchaseGross",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofCollateralSwapsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SegmentDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Components of an entity that engage in business activities from which they may earn revenue and incur expenses, including transactions with other components of the same entity.",
        "label": "Segments [Domain]",
        "terseLabel": "Segments [Domain]"
       }
      }
     },
     "localname": "SegmentDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/GoodwillandOtherAcquisitionRelatedIntangibleAssetsAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_SegmentReportingAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Segment Reporting [Abstract]"
       }
      }
     },
     "localname": "SegmentReportingAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_SegmentReportingDisclosureTextBlock": {
     "auth_ref": [
      "r133"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.",
        "label": "Segment Reporting Disclosure [Text Block]",
        "terseLabel": "Segment Information"
       }
      }
     },
     "localname": "SegmentReportingDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/SegmentInformation"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_SeniorSubordinatedNotesMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A senior subordinated note is a bond that takes priority over other debt securities sold by the issuer. In the event the issuer goes bankrupt, senior subordinated debt holders receive priority for [must receive] repayment [prior] relative to junior and unsecured (general) creditors. However  senior subordinated notes are junior to Senior Notes and Senior bond holders.",
        "label": "Senior Subordinated Notes [Member]",
        "terseLabel": "Subordinated notes"
       }
      }
     },
     "localname": "SeniorSubordinatedNotesMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesAdditionalInformationDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ServicingAsset": {
     "auth_ref": [
      "r411"
     ],
     "calculation": {
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail": {
       "order": 4.0,
       "parentTag": "us-gaap_AssetsFairValueDisclosure",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Aggregate amount of servicing assets that are subsequently measured at fair value and servicing assets that are subsequently measured using the amortization method.",
        "label": "Servicing Asset",
        "terseLabel": "Servicing Asset"
       }
      }
     },
     "localname": "ServicingAsset",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/FairValueMeasurementsAssetsonNonRecurringBasisDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ShareRepurchaseProgramAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by share repurchase program.",
        "label": "Share Repurchase Program [Axis]",
        "terseLabel": "Share Repurchase Program [Axis]"
       }
      }
     },
     "localname": "ShareRepurchaseProgramAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/StockholdersEquityAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ShareRepurchaseProgramDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Name of the share repurchase program.",
        "label": "Share Repurchase Program [Domain]",
        "terseLabel": "Share Repurchase Program [Domain]"
       }
      }
     },
     "localname": "ShareRepurchaseProgramDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/StockholdersEquityAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ShortTermInvestments": {
     "auth_ref": [
      "r8",
      "r422",
      "r423",
      "r425",
      "r468"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 1.0,
       "parentTag": "us-gaap_CashCashEquivalentsAndShortTermInvestments",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of investments including trading securities, available-for-sale securities, held-to-maturity securities, and short-term investments classified as other and current.",
        "label": "Short-term Investments",
        "terseLabel": "Short-term investments"
       }
      }
     },
     "localname": "ShortTermInvestments",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited",
      "http://www.peoples.com/role/FairValueMeasurementsFinancialInstrumentsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SpecialMentionMember": {
     "auth_ref": [
      "r146",
      "r217"
     ],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Special Mention [Member]",
        "terseLabel": "Special mention"
       }
      }
     },
     "localname": "SpecialMentionMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansSummaryofCreditQualityIndicatorsbyClassofLoanDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_StatementBusinessSegmentsAxis": {
     "auth_ref": [
      "r0",
      "r131",
      "r242",
      "r256",
      "r257",
      "r258",
      "r484"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by business segments.",
        "label": "Segments [Axis]",
        "terseLabel": "Segments [Axis]"
       }
      }
     },
     "localname": "StatementBusinessSegmentsAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/GoodwillandOtherAcquisitionRelatedIntangibleAssetsAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementClassOfStockAxis": {
     "auth_ref": [
      "r10",
      "r11",
      "r12",
      "r267"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by the different classes of stock of the entity.",
        "label": "Class of Stock [Axis]",
        "terseLabel": "Class of Stock [Axis]"
       }
      }
     },
     "localname": "StatementClassOfStockAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CoverPage"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementEquityComponentsAxis": {
     "auth_ref": [
      "r24",
      "r267"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by component of equity.",
        "label": "Equity Components [Axis]",
        "terseLabel": "Equity Components [Axis]"
       }
      }
     },
     "localname": "StatementEquityComponentsAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofChangesinStockholdersEquityUnaudited",
      "http://www.peoples.com/role/ConsolidatedStatementsofChangesinStockholdersEquityUnauditedParenthetical",
      "http://www.peoples.com/role/NewAccountingStandardsDetails",
      "http://www.peoples.com/role/StockholdersEquityScheduleofAccumulatedOtherComprehensiveLossDetail",
      "http://www.peoples.com/role/StockholdersEquitySummaryofAmountsReclassifiedfromAOCLDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Statement [Line Items]",
        "terseLabel": "Statement [Line Items]"
       }
      }
     },
     "localname": "StatementLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofChangesinStockholdersEquityUnaudited",
      "http://www.peoples.com/role/ConsolidatedStatementsofChangesinStockholdersEquityUnauditedParenthetical",
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited",
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited",
      "http://www.peoples.com/role/EmployeeBenefitPlansPolicies"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementOfCashFlowsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Statement of Cash Flows [Abstract]"
       }
      }
     },
     "localname": "StatementOfCashFlowsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementOfFinancialPositionAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Statement of Financial Position [Abstract]"
       }
      }
     },
     "localname": "StatementOfFinancialPositionAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Statement of Comprehensive Income [Abstract]"
       }
      }
     },
     "localname": "StatementOfIncomeAndComprehensiveIncomeAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementOfStockholdersEquityAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Statement of Stockholders' Equity [Abstract]"
       }
      }
     },
     "localname": "StatementOfStockholdersEquityAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementTable": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Schedule reflecting a Statement of Income, Statement of Cash Flows, Statement of Financial Position, Statement of Shareholders' Equity and Other Comprehensive Income, or other statement as needed.",
        "label": "Statement [Table]",
        "terseLabel": "Statement [Table]"
       }
      }
     },
     "localname": "StatementTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofChangesinStockholdersEquityUnaudited",
      "http://www.peoples.com/role/ConsolidatedStatementsofChangesinStockholdersEquityUnauditedParenthetical",
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited",
      "http://www.peoples.com/role/ConsolidatedStatementsofIncomeUnaudited",
      "http://www.peoples.com/role/EmployeeBenefitPlansPolicies"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation": {
     "auth_ref": [
      "r11",
      "r12",
      "r268",
      "r303",
      "r305"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Value, after forfeiture, of shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP).",
        "label": "Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture",
        "terseLabel": "Restricted stock and performance-based share awards"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodValueShareBasedCompensation",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofChangesinStockholdersEquityUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.",
        "label": "Stock Repurchase Program, Number of Shares Authorized to be Repurchased",
        "terseLabel": "Number of shares authorized for repurchase (in shares)"
       }
      }
     },
     "localname": "StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/StockholdersEquityAdditionalInformationDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_StockRepurchasedAndRetiredDuringPeriodValue": {
     "auth_ref": [
      "r11",
      "r12",
      "r267",
      "r268"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).",
        "label": "Stock Repurchased and Retired During Period, Value",
        "negatedLabel": "Common stock repurchased and retired upon vesting of restricted stock awards"
       }
      }
     },
     "localname": "StockRepurchasedAndRetiredDuringPeriodValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofChangesinStockholdersEquityUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockRepurchasedDuringPeriodValue": {
     "auth_ref": [
      "r11",
      "r12",
      "r267",
      "r268"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.",
        "label": "Stock Repurchased During Period, Value",
        "negatedLabel": "Common stock repurchased (note 6)"
       }
      }
     },
     "localname": "StockRepurchasedDuringPeriodValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofChangesinStockholdersEquityUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockholdersEquity": {
     "auth_ref": [
      "r12",
      "r15",
      "r16",
      "r156"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 2.0,
       "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.",
        "label": "Stockholders' Equity Attributable to Parent",
        "periodEndLabel": "Ending Balance",
        "periodStartLabel": "Beginning Balance",
        "totalLabel": "Total stockholders\u2019 equity"
       }
      }
     },
     "localname": "StockholdersEquity",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofChangesinStockholdersEquityUnaudited",
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited",
      "http://www.peoples.com/role/StockholdersEquityScheduleofAccumulatedOtherComprehensiveLossDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockholdersEquityAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Stockholders' Equity Attributable to Parent [Abstract]",
        "terseLabel": "Stockholders\u2019 Equity (notes 6, 9 and 15)"
       }
      }
     },
     "localname": "StockholdersEquityAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StockholdersEquityNoteDisclosureTextBlock": {
     "auth_ref": [
      "r271"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.",
        "label": "Stockholders' Equity Note Disclosure [Text Block]",
        "terseLabel": "Stockholders' Equity"
       }
      }
     },
     "localname": "StockholdersEquityNoteDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/StockholdersEquity"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_SubleaseIncome": {
     "auth_ref": [
      "r389",
      "r396"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesCostandSupplementalInformationDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_LeaseCost",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of sublease income excluding finance and operating lease expense.",
        "label": "Sublease Income",
        "negatedLabel": "Sublease income"
       }
      }
     },
     "localname": "SubleaseIncome",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesCostandSupplementalInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SubordinatedDebt": {
     "auth_ref": [
      "r7",
      "r9",
      "r419",
      "r471"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Subordinated Debt",
        "terseLabel": "Subordinated notes"
       }
      }
     },
     "localname": "SubordinatedDebt",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SubstandardMember": {
     "auth_ref": [
      "r146",
      "r217"
     ],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Substandard [Member]",
        "terseLabel": "Substandard"
       }
      }
     },
     "localname": "SubstandardMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansScheduleofCommercialLoansByRiskRatingsDetails",
      "http://www.peoples.com/role/LoansSummaryofCreditQualityIndicatorsbyClassofLoanDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_SupplementalCashFlowInformationAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Supplemental Cash Flow Information [Abstract]",
        "terseLabel": "Supplemental Information:"
       }
      }
     },
     "localname": "SupplementalCashFlowInformationAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofCashFlowsUnaudited"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_TimeDeposits": {
     "auth_ref": [
      "r429",
      "r463"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 4.0,
       "parentTag": "us-gaap_Deposits",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of time deposit liabilities, including certificates of deposit.",
        "label": "Time Deposits",
        "terseLabel": "Time",
        "verboseLabel": "Time deposits"
       }
      }
     },
     "localname": "TimeDeposits",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited",
      "http://www.peoples.com/role/FairValueMeasurementsFinancialInstrumentsDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_TradeNamesMember": {
     "auth_ref": [
      "r320"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Rights acquired through registration of a business name to gain or protect exclusive use thereof.",
        "label": "Trade Names [Member]",
        "terseLabel": "Trade Name"
       }
      }
     },
     "localname": "TradeNamesMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/GoodwillandOtherAcquisitionRelatedIntangibleAssetsAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_TradingSecuritiesDebt": {
     "auth_ref": [
      "r163",
      "r164"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 1.0,
       "parentTag": "us-gaap_MarketableSecurities",
       "weight": 1.0
      },
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail": {
       "order": 1.0,
       "parentTag": "us-gaap_AssetsFairValueDisclosure",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading).",
        "label": "Debt Securities, Trading",
        "terseLabel": "Trading debt securities",
        "verboseLabel": "Trading debt securities, at fair value"
       }
      }
     },
     "localname": "TradingSecuritiesDebt",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain": {
     "auth_ref": [
      "r412"
     ],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Financial Instruments [Domain]",
        "terseLabel": "Financial Instruments [Domain]"
       }
      }
     },
     "localname": "TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingAdditionalInformationDetail",
      "http://www.peoples.com/role/BalanceSheetOffsettingSummaryofCollateralSwapsDetail",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAvailableforSaleandHeldtoMaturityDebtSecuritiesGainsLossesDetail",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesDebtSecuritiesHeldtomaturityCreditQualityDetails",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesImpactonIncomeandAOCIDetail",
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesScheduleofNotionalAmountandFairValueDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAdditionalInformationDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_TreasuryLockMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Customized agreement that fixes the yield or price on a specified treasury security for a specific period.",
        "label": "Treasury Lock [Member]",
        "terseLabel": "Treasury Forward Interest Rate Locks (T-Locks)"
       }
      }
     },
     "localname": "TreasuryLockMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/DerivativeFinancialInstrumentsandHedgingActivitiesAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_TreasuryStockMember": {
     "auth_ref": [
      "r23",
      "r269"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Shares of an entity that have been repurchased by the entity. This stock has no voting rights and receives no dividends. Note that treasury stock may be recorded at its total cost or separately as par (or stated) value and additional paid in capital. Classified within stockholders' equity if nonredeemable or redeemable solely at the option of the issuer. Classified within temporary equity if redemption is outside the control of the issuer.",
        "label": "Treasury Stock [Member]",
        "terseLabel": "Treasury Stock"
       }
      }
     },
     "localname": "TreasuryStockMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofChangesinStockholdersEquityUnaudited"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_TreasuryStockShares": {
     "auth_ref": [
      "r23",
      "r269"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.",
        "label": "Treasury Stock, Shares",
        "terseLabel": "Common stock purchased (in shares)",
        "verboseLabel": "Treasury stock (in shares)"
       }
      }
     },
     "localname": "TreasuryStockShares",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnauditedParenthetical",
      "http://www.peoples.com/role/StockholdersEquityAdditionalInformationDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_TreasuryStockSharesAcquired": {
     "auth_ref": [
      "r12",
      "r267",
      "r268"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of shares that have been repurchased during the period and are being held in treasury.",
        "label": "Treasury Stock, Shares, Acquired",
        "terseLabel": "Treasury stock shares acquired (in shares)"
       }
      }
     },
     "localname": "TreasuryStockSharesAcquired",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/StockholdersEquityAdditionalInformationDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_TreasuryStockValue": {
     "auth_ref": [
      "r23",
      "r269",
      "r270"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 7.0,
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury.",
        "label": "Treasury Stock, Value",
        "negatedLabel": "Treasury stock, at cost (109.0 million shares and 89.2 million shares)"
       }
      }
     },
     "localname": "TreasuryStockValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_TreasuryStockValueAcquiredParValueMethod": {
     "auth_ref": [
      "r267",
      "r268",
      "r269"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the par value method.",
        "label": "Treasury Stock, Value, Acquired, Par Value Method",
        "terseLabel": "Treasury stock acquired"
       }
      }
     },
     "localname": "TreasuryStockValueAcquiredParValueMethod",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/StockholdersEquityAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_TroubledDebtRestructuringsOnFinancingReceivablesTableTextBlock": {
     "auth_ref": [
      "r148",
      "r150"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of financing receivable modified as troubled debt restructuring.",
        "label": "Financing Receivable, Troubled Debt Restructuring [Table Text Block]",
        "terseLabel": "Summary of Recorded Investments in TDRs by Class of Loan"
       }
      }
     },
     "localname": "TroubledDebtRestructuringsOnFinancingReceivablesTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LoansTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_TypeOfAdoptionMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Adoption and early adoption of sources of change to generally accepted accounting principles (GAAP) in the United States. The FASB released the FASB Accounting Standards Codification as the authoritative source of literature effective for interim and annual periods ending after September 15, 2009. As part of the Codification process, the FASB issues Accounting Standards Updates to amend the Codification but otherwise the Accounting Standards Updates are not authoritative in their own right. All previous accounting standards (such as FASB Statements of Financial Accounting Standards, FASB Interpretations, FASB Staff Positions, Emerging Issues Task Force Consensuses, other pronouncements of the FASB or other designated bodies, or other forms of GAAP are considered accounting pronouncements) were superseded upon the adoption of the Codification. For an interim period, references to the superseded standards are included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.",
        "label": "Type of Adoption [Domain]",
        "terseLabel": "Type of Adoption [Domain]"
       }
      }
     },
     "localname": "TypeOfAdoptionMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/NewAccountingStandardsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_USStatesAndPoliticalSubdivisionsMember": {
     "auth_ref": [
      "r278",
      "r486"
     ],
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "US States and Political Subdivisions Debt Securities [Member]",
        "terseLabel": "State and municipal"
       }
      }
     },
     "localname": "USStatesAndPoliticalSubdivisionsMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAdditionalInformationDetail",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAvailableforSaleandHeldtoMaturityDebtSecuritiesGainsLossesDetail",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesDebtSecuritiesHeldtomaturityCreditQualityDetails",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_USTreasuryAndGovernmentMember": {
     "auth_ref": [
      "r278",
      "r424",
      "r486"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "This category includes investments in debt securities issued by the United States Department of the Treasury, US Government Agencies and US Government-sponsored Enterprises. Such securities may include treasury bills (short-term maturities - one year or less), treasury notes (intermediate term maturities - two to ten years), and treasury bonds (long-term maturities - ten to thirty years), debt securities issued by the Government National Mortgage Association (Ginnie Mae) and debt securities issued by the Federal National Mortgage Association (Fannie Mae) or the Federal Home Loan Mortgage Corporation (Freddie Mac).",
        "label": "US Treasury and Government [Member]",
        "terseLabel": "U.S. Treasury and agency"
       }
      }
     },
     "localname": "USTreasuryAndGovernmentMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesAvailableforSaleandHeldtoMaturityDebtSecuritiesGainsLossesDetail",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesContinuousUnrealizedLossPositionsDetail",
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesSummaryofAmortizedCostandFairValuetoContractualMaturityDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_USTreasurySecuritiesMember": {
     "auth_ref": [
      "r278",
      "r297",
      "r424"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "This category includes information about debt securities issued by the United States Department of the Treasury and backed by the United States government. Such securities primarily consist of treasury bills (short-term maturities - one year or less), treasury notes (intermediate term maturities - two to ten years), and treasury bonds (long-term maturities - ten to thirty years).",
        "label": "US Treasury Securities [Member]",
        "terseLabel": "U.S. Treasury"
       }
      }
     },
     "localname": "USTreasurySecuritiesMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/BalanceSheetOffsettingAdditionalInformationDetail",
      "http://www.peoples.com/role/FairValueMeasurementsAssetsandLiabilitiesonRecurringBasisDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_UndistributedEarnings": {
     "auth_ref": [
      "r114",
      "r115",
      "r118",
      "r119",
      "r120"
     ],
     "calculation": {
      "http://www.peoples.com/role/EarningsPerCommonShareDetail": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The earnings that is allocated to common stock and participating securities to the extent that each security may share in earnings as if all of the earnings for the period had been distributed.",
        "label": "Undistributed Earnings, Basic",
        "totalLabel": "Earnings attributable to common shareholders"
       }
      }
     },
     "localname": "UndistributedEarnings",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EarningsPerCommonShareDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_UnearnedESOPShares": {
     "auth_ref": [
      "r310",
      "r315"
     ],
     "calculation": {
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited": {
       "order": 5.0,
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value of unearned shares for all classes of common stock and nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by an employee stock ownership plan (ESOP). Includes the sale of shares or the issuance treasury shares to an ESOP.",
        "label": "Unearned ESOP Shares",
        "negatedLabel": "Unallocated common stock of Employee Stock Ownership Plan, at cost (5.8 million shares and 5.9 million shares)"
       }
      }
     },
     "localname": "UnearnedESOPShares",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/ConsolidatedStatementsofConditionUnaudited"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_UnrealizedGainLossOnInvestmentsTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of unrealized gains and losses on investments.",
        "label": "Unrealized Gain (Loss) on Investments [Table Text Block]",
        "terseLabel": "Available-for-Sale and Held-to-Maturity Debt Securities Gains (Losses)"
       }
      }
     },
     "localname": "UnrealizedGainLossOnInvestmentsTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/CashandCashEquivalentsandSecuritiesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_VariableLeaseCost": {
     "auth_ref": [
      "r388",
      "r396"
     ],
     "calculation": {
      "http://www.peoples.com/role/LeasesCostandSupplementalInformationDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_LeaseCost",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.",
        "label": "Variable Lease, Cost",
        "terseLabel": "Variable lease cost"
       }
      }
     },
     "localname": "VariableLeaseCost",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/LeasesCostandSupplementalInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment": {
     "auth_ref": [
      "r122"
     ],
     "calculation": {
      "http://www.peoples.com/role/EarningsPerCommonShareDetail": {
       "order": 2.0,
       "parentTag": "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding",
       "weight": 1.0
      }
     },
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.",
        "label": "Weighted Average Number Diluted Shares Outstanding Adjustment",
        "terseLabel": "Effect of dilutive equity-based awards (in shares)"
       }
      }
     },
     "localname": "WeightedAverageNumberDilutedSharesOutstandingAdjustment",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EarningsPerCommonShareDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding": {
     "auth_ref": [
      "r112",
      "r122"
     ],
     "calculation": {
      "http://www.peoples.com/role/EarningsPerCommonShareDetail": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Weighted Average Number of Shares Outstanding, Diluted",
        "totalLabel": "Weighted average common shares and common-equivalent shares for diluted EPS (in shares)"
       }
      }
     },
     "localname": "WeightedAverageNumberOfDilutedSharesOutstanding",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EarningsPerCommonShareDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_WeightedAverageNumberOfSharesOutstandingBasic": {
     "auth_ref": [
      "r110",
      "r122"
     ],
     "calculation": {
      "http://www.peoples.com/role/EarningsPerCommonShareDetail": {
       "order": 1.0,
       "parentTag": "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding",
       "weight": 1.0
      }
     },
     "lang": {
      "en-US": {
       "role": {
        "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.",
        "label": "Weighted Average Number of Shares Outstanding, Basic",
        "terseLabel": "Weighted average common shares outstanding for basic EPS (in shares)"
       }
      }
     },
     "localname": "WeightedAverageNumberOfSharesOutstandingBasic",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.peoples.com/role/EarningsPerCommonShareDetail"
     ],
     "xbrltype": "sharesItemType"
    }
   },
   "unitCount": 8
  }
 },
 "std_ref": {
  "r0": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)",
   "Topic": "205",
   "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=d3e1361-107760"
  },
  "r1": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "205",
   "URI": "http://asc.fasb.org/topic&trid=2122149"
  },
  "r10": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(27))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r100": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(m)(1)(iii))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r101": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(m)(2)(i))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r102": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08.(m)(1)(a)(i))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r103": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08.(m)(1)(i)(A))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r104": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08.(n)(2))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r105": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.12-04(a))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690"
  },
  "r106": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794"
  },
  "r107": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22694-107794"
  },
  "r108": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22583-107794"
  },
  "r109": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "250",
   "URI": "http://asc.fasb.org/topic&trid=2122394"
  },
  "r11": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(28))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r110": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=117326831&loc=d3e1448-109256"
  },
  "r111": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=117326831&loc=d3e1377-109256"
  },
  "r112": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "16",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=117326831&loc=d3e1505-109256"
  },
  "r113": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=117326831&loc=d3e1252-109256"
  },
  "r114": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "60",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=117326831&loc=d3e2740-109256"
  },
  "r115": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "60A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=117326831&loc=SL5780132-109256"
  },
  "r116": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "60B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=117326831&loc=SL5780133-109256"
  },
  "r117": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "60B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=117326831&loc=SL5780133-109256"
  },
  "r118": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "60B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=117326831&loc=SL5780133-109256"
  },
  "r119": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "65",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=117326831&loc=d3e2793-109256"
  },
  "r12": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(29))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r120": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "66",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=117326831&loc=d3e2814-109256"
  },
  "r121": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=117326831&loc=d3e1337-109256"
  },
  "r122": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257"
  },
  "r123": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257"
  },
  "r124": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257"
  },
  "r125": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257"
  },
  "r126": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "52",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=117327953&loc=d3e4984-109258"
  },
  "r127": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "260",
   "URI": "http://asc.fasb.org/topic&trid=2144383"
  },
  "r128": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "270",
   "URI": "http://asc.fasb.org/extlink&oid=118952077&loc=SL77927221-108306"
  },
  "r129": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599"
  },
  "r13": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(30)(a)(1))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r130": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(h)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599"
  },
  "r131": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599"
  },
  "r132": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "40",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e9031-108599"
  },
  "r133": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "280",
   "URI": "http://asc.fasb.org/topic&trid=2134510"
  },
  "r134": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118952595&loc=d3e4428-111522"
  },
  "r135": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118952595&loc=d3e4437-111522"
  },
  "r136": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=d3e5162-111524"
  },
  "r137": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524"
  },
  "r138": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524"
  },
  "r139": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(3)",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524"
  },
  "r14": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(30)(a)(3))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r140": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(4)",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524"
  },
  "r141": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(g)",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524"
  },
  "r142": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524"
  },
  "r143": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=SL6953550-111524"
  },
  "r144": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(3)",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=d3e5212-111524"
  },
  "r145": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=d3e5212-111524"
  },
  "r146": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "29",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=SL6953659-111524"
  },
  "r147": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=d3e5066-111524"
  },
  "r148": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "33",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=SL6953676-111524"
  },
  "r149": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "34",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(2)",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=SL6953682-111524"
  },
  "r15": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(30))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r150": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "34",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=SL6953682-111524"
  },
  "r151": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=d3e5074-111524"
  },
  "r152": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=d3e5111-111524"
  },
  "r153": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=d3e5111-111524"
  },
  "r154": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=d3e5111-111524"
  },
  "r155": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=SL6953401-111524"
  },
  "r156": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 4.E)",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707"
  },
  "r157": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "SubTopic": "10",
   "Topic": "310",
   "URI": "http://asc.fasb.org/subtopic&trid=2196772"
  },
  "r158": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=84159169&loc=d3e10152-111534"
  },
  "r159": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "SubTopic": "20",
   "Topic": "310",
   "URI": "http://asc.fasb.org/subtopic&trid=2196816"
  },
  "r16": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(31))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r160": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "SubTopic": "30",
   "Topic": "310",
   "URI": "http://asc.fasb.org/subtopic&trid=2196854"
  },
  "r161": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118939409&loc=d3e18845-111554"
  },
  "r162": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "310",
   "URI": "http://asc.fasb.org/topic&trid=2196771"
  },
  "r163": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=118954083&loc=d3e26610-111562"
  },
  "r164": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=118954083&loc=d3e26610-111562"
  },
  "r165": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=118954083&loc=d3e26853-111562"
  },
  "r166": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=118954083&loc=SL6284422-111562"
  },
  "r167": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=SL6283291-111563"
  },
  "r168": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27161-111563"
  },
  "r169": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(aa)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27161-111563"
  },
  "r17": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(32))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r170": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(aaa)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27161-111563"
  },
  "r171": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27161-111563"
  },
  "r172": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27161-111563"
  },
  "r173": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27161-111563"
  },
  "r174": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27161-111563"
  },
  "r175": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27198-111563"
  },
  "r176": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27198-111563"
  },
  "r177": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27198-111563"
  },
  "r178": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27198-111563"
  },
  "r179": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27232-111563"
  },
  "r18": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.1)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r180": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(aa)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27232-111563"
  },
  "r181": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(aaa)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27232-111563"
  },
  "r182": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27232-111563"
  },
  "r183": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27232-111563"
  },
  "r184": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)(1)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27232-111563"
  },
  "r185": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27232-111563"
  },
  "r186": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)(3)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27232-111563"
  },
  "r187": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)(4)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27232-111563"
  },
  "r188": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27232-111563"
  },
  "r189": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27290-111563"
  },
  "r19": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.15)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r190": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(1)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27290-111563"
  },
  "r191": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(2)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27290-111563"
  },
  "r192": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)(3)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27290-111563"
  },
  "r193": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27337-111563"
  },
  "r194": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "320",
   "URI": "http://asc.fasb.org/topic&trid=2196928"
  },
  "r195": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "321",
   "URI": "http://asc.fasb.org/extlink&oid=116654751&loc=SL75117546-209714"
  },
  "r196": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "740",
   "Subparagraph": "(b)",
   "Topic": "323",
   "URI": "http://asc.fasb.org/extlink&oid=116633289&loc=SL49122993-202985"
  },
  "r197": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "740",
   "Subparagraph": "(c)",
   "Topic": "323",
   "URI": "http://asc.fasb.org/extlink&oid=116633289&loc=SL49122993-202985"
  },
  "r198": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "740",
   "Subparagraph": "(e)",
   "Topic": "323",
   "URI": "http://asc.fasb.org/extlink&oid=116633289&loc=SL49122993-202985"
  },
  "r199": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=118950378&loc=SL82887624-210437"
  },
  "r2": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(1))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r20": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.19-26)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r200": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=118955202&loc=SL82895884-210446"
  },
  "r201": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=118955202&loc=SL82919202-210446"
  },
  "r202": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919244-210447"
  },
  "r203": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447"
  },
  "r204": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447"
  },
  "r205": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447"
  },
  "r206": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(e)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447"
  },
  "r207": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(f)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447"
  },
  "r208": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447"
  },
  "r209": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919253-210447"
  },
  "r21": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.22)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r210": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "16",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919258-210447"
  },
  "r211": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "16",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919258-210447"
  },
  "r212": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "16",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919258-210447"
  },
  "r213": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "16",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919258-210447"
  },
  "r214": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "16",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919258-210447"
  },
  "r215": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "19",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919265-210447"
  },
  "r216": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919230-210447"
  },
  "r217": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919230-210447"
  },
  "r218": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919232-210447"
  },
  "r219": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=118955255&loc=SL82921830-210448"
  },
  "r22": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.25)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r220": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=118955255&loc=SL82921833-210448"
  },
  "r221": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=118955255&loc=SL82921835-210448"
  },
  "r222": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Subparagraph": "(d)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=118955255&loc=SL82921835-210448"
  },
  "r223": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=118955255&loc=SL82921842-210448"
  },
  "r224": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "79",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=118955255&loc=SL82922352-210448"
  },
  "r225": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "80",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=118955255&loc=SL82922355-210448"
  },
  "r226": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "SubTopic": "20",
   "Topic": "326",
   "URI": "http://asc.fasb.org/subtopic&trid=82887181"
  },
  "r227": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=118942338&loc=SL82898722-210454"
  },
  "r228": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(a)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=118955579&loc=SL82922888-210455"
  },
  "r229": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(a)(1)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=118955579&loc=SL82922888-210455"
  },
  "r23": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.29,30)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r230": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(a)(2)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=118955579&loc=SL82922888-210455"
  },
  "r231": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(b)(3)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=118955579&loc=SL82922888-210455"
  },
  "r232": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=118955579&loc=SL82922888-210455"
  },
  "r233": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=118955579&loc=SL82922890-210455"
  },
  "r234": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=118955579&loc=SL82922895-210455"
  },
  "r235": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(a)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=118955579&loc=SL82922900-210455"
  },
  "r236": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(i)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=118955579&loc=SL82922900-210455"
  },
  "r237": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=118955579&loc=SL82922900-210455"
  },
  "r238": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "30",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=118942371&loc=SL82922954-210456"
  },
  "r239": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "SubTopic": "30",
   "Topic": "326",
   "URI": "http://asc.fasb.org/subtopic&trid=82887182"
  },
  "r24": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.29-31)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r240": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266"
  },
  "r241": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975"
  },
  "r242": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267"
  },
  "r243": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274"
  },
  "r244": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274"
  },
  "r245": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(a)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275"
  },
  "r246": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(d)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275"
  },
  "r247": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "((a)(1),(b))",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275"
  },
  "r248": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(a)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275"
  },
  "r249": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(a)(1)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275"
  },
  "r25": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.3,4)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r250": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(a)(2)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275"
  },
  "r251": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(a)(3)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275"
  },
  "r252": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(d)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275"
  },
  "r253": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "350",
   "URI": "http://asc.fasb.org/topic&trid=2144416"
  },
  "r254": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229"
  },
  "r255": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230"
  },
  "r256": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230"
  },
  "r257": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "420",
   "URI": "http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869"
  },
  "r258": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 5.P.4(d))",
   "Topic": "420",
   "URI": "http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747"
  },
  "r259": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "440",
   "URI": "http://asc.fasb.org/topic&trid=2144648"
  },
  "r26": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=49176635&loc=d3e9760-107771"
  },
  "r260": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=118942415&loc=d3e14326-108349"
  },
  "r261": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "450",
   "URI": "http://asc.fasb.org/topic&trid=2127136"
  },
  "r262": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "460",
   "URI": "http://asc.fasb.org/extlink&oid=118956080&loc=d3e11927-110247"
  },
  "r263": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "460",
   "URI": "http://asc.fasb.org/extlink&oid=118943654&loc=d3e12069-110248"
  },
  "r264": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(4)",
   "Topic": "460",
   "URI": "http://asc.fasb.org/extlink&oid=118943654&loc=d3e12069-110248"
  },
  "r265": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=6802200&loc=SL6230698-112601"
  },
  "r266": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(3)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870"
  },
  "r267": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644"
  },
  "r268": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.3-04)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770"
  },
  "r269": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655"
  },
  "r27": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312"
  },
  "r270": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=6405834&loc=d3e23315-112656"
  },
  "r271": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "505",
   "URI": "http://asc.fasb.org/topic&trid=2208762"
  },
  "r272": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045"
  },
  "r273": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045"
  },
  "r274": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "91",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=118944142&loc=SL49130690-203046-203046"
  },
  "r275": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "15",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "712",
   "URI": "http://asc.fasb.org/extlink&oid=6410066&loc=d3e79218-111664"
  },
  "r276": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "15",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "712",
   "URI": "http://asc.fasb.org/extlink&oid=6410066&loc=d3e79218-111664"
  },
  "r277": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)(2)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r278": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(ii)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r279": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(01)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r28": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312"
  },
  "r280": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(h)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r281": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(h)(2)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r282": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(h)(3)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r283": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(h)(4)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r284": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(h)(7)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r285": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(i)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r286": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(i),(j)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r287": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(j)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r288": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r289": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2410-114920"
  },
  "r29": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312"
  },
  "r290": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2417-114920"
  },
  "r291": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2439-114920"
  },
  "r292": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920"
  },
  "r293": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)(2)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920"
  },
  "r294": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)(3)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920"
  },
  "r295": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)(4)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920"
  },
  "r296": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)(7)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920"
  },
  "r297": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "17",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921"
  },
  "r298": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=6412939&loc=d3e15145-114933"
  },
  "r299": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "60",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=66047640&loc=d3e39622-114963"
  },
  "r3": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(12))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r30": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312"
  },
  "r300": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "70",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942"
  },
  "r301": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "80",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=d3e29149-114947"
  },
  "r302": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "715",
   "URI": "http://asc.fasb.org/topic&trid=2235017"
  },
  "r303": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901"
  },
  "r304": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901"
  },
  "r305": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r306": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r307": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=SL79508275-113901"
  },
  "r308": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "24",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=118258462&loc=d3e11374-113907"
  },
  "r309": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "25",
   "SubTopic": "40",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=109244457&loc=d3e16721-113920"
  },
  "r31": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(1)(i)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312"
  },
  "r310": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "40",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=6418591&loc=d3e17344-113926"
  },
  "r311": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Subparagraph": "(a)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=109244661&loc=d3e17540-113929"
  },
  "r312": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Subparagraph": "(b)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=109244661&loc=d3e17540-113929"
  },
  "r313": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Subparagraph": "(c)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=109244661&loc=d3e17540-113929"
  },
  "r314": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Subparagraph": "(d)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=109244661&loc=d3e17540-113929"
  },
  "r315": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Subparagraph": "(e)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=109244661&loc=d3e17540-113929"
  },
  "r316": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=109238882&loc=d3e38679-109324"
  },
  "r317": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463"
  },
  "r318": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1486-128463"
  },
  "r319": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=77890550&loc=d3e5227-128473"
  },
  "r32": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(2)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312"
  },
  "r320": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=77890550&loc=d3e5263-128473"
  },
  "r321": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Subparagraph": "(e)",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=77890550&loc=d3e5263-128473"
  },
  "r322": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=77890550&loc=d3e5333-128473"
  },
  "r323": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(d)",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479"
  },
  "r324": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "19",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4569616-111683"
  },
  "r325": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4569643-111683"
  },
  "r326": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(3)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684"
  },
  "r327": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c),(3)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684"
  },
  "r328": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "810",
   "URI": "http://asc.fasb.org/topic&trid=2197479"
  },
  "r329": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5579240-113959"
  },
  "r33": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(e)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312"
  },
  "r330": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959"
  },
  "r331": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959"
  },
  "r332": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5580258-113959"
  },
  "r333": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(1)(i)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=d3e41620-113959"
  },
  "r334": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(1)(ii)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=d3e41620-113959"
  },
  "r335": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=d3e41620-113959"
  },
  "r336": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=d3e41638-113959"
  },
  "r337": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959"
  },
  "r338": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959"
  },
  "r339": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a),(c)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959"
  },
  "r34": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313"
  },
  "r340": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959"
  },
  "r341": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959"
  },
  "r342": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959"
  },
  "r343": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4C",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959"
  },
  "r344": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4D",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624177-113959"
  },
  "r345": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4D",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(1)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624177-113959"
  },
  "r346": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4D",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(2)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624177-113959"
  },
  "r347": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4D",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624177-113959"
  },
  "r348": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4E",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624181-113959"
  },
  "r349": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4K",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5708775-113959"
  },
  "r35": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226013-175313"
  },
  "r350": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4K",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(4)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5708775-113959"
  },
  "r351": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=d3e41641-113959"
  },
  "r352": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=d3e41678-113959"
  },
  "r353": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=d3e41678-113959"
  },
  "r354": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "182",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=116861445&loc=SL5629052-113961"
  },
  "r355": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "25",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109977999&loc=d3e76258-113986"
  },
  "r356": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109978405&loc=d3e80720-113993"
  },
  "r357": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "815",
   "URI": "http://asc.fasb.org/topic&trid=2229140"
  },
  "r358": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r359": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r36": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226016-175313"
  },
  "r360": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(bb)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r361": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(bbb)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r362": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(bbb)(1)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r363": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(bbb)(2)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r364": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(h)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r365": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r366": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19279-110258"
  },
  "r367": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=SL6742756-110258"
  },
  "r368": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=SL6742756-110258"
  },
  "r369": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "825",
   "URI": "http://asc.fasb.org/extlink&oid=99377092&loc=SL75136599-209740"
  },
  "r37": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "16",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226024-175313"
  },
  "r370": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "825",
   "URI": "http://asc.fasb.org/extlink&oid=116690757&loc=d3e13220-108610"
  },
  "r371": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "825",
   "URI": "http://asc.fasb.org/extlink&oid=118260190&loc=d3e13433-108611"
  },
  "r372": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "825",
   "URI": "http://asc.fasb.org/extlink&oid=118260190&loc=d3e13467-108611"
  },
  "r373": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "825",
   "URI": "http://asc.fasb.org/extlink&oid=118260190&loc=d3e13476-108611"
  },
  "r374": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "230",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=98513438&loc=d3e33268-110906"
  },
  "r375": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "835",
   "URI": "http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391"
  },
  "r376": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "835",
   "URI": "http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399"
  },
  "r377": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "835",
   "URI": "http://asc.fasb.org/extlink&oid=114775744&loc=d3e28555-108399"
  },
  "r378": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "30",
   "Topic": "835",
   "URI": "http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400"
  },
  "r379": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "840",
   "URI": "http://asc.fasb.org/extlink&oid=84164817&loc=d3e45280-112737"
  },
  "r38": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226052-175313"
  },
  "r380": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(a)(4)",
   "Topic": "840",
   "URI": "http://asc.fasb.org/extlink&oid=84165051&loc=d3e45377-112738"
  },
  "r381": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977"
  },
  "r382": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977"
  },
  "r383": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888419&loc=SL77918638-209977"
  },
  "r384": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888419&loc=SL77918643-209977"
  },
  "r385": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888419&loc=SL77918643-209977"
  },
  "r386": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
  },
  "r387": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
  },
  "r388": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
  },
  "r389": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(e)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
  },
  "r39": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226000-175313"
  },
  "r390": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(g)(1)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
  },
  "r391": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(g)(2)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
  },
  "r392": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(g)(3)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
  },
  "r393": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(g)(4)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
  },
  "r394": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
  },
  "r395": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980"
  },
  "r396": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "53",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888399&loc=SL77918982-209971"
  },
  "r397": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "SubTopic": "20",
   "Topic": "842",
   "URI": "http://asc.fasb.org/subtopic&trid=77888251"
  },
  "r398": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888421&loc=SL77919306-209978"
  },
  "r399": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888421&loc=SL77919311-209978"
  },
  "r4": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(13))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r40": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226003-175313"
  },
  "r400": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=119202524&loc=SL77919391-209981"
  },
  "r401": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(a)(1)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=119202524&loc=SL77919372-209981"
  },
  "r402": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=119202524&loc=SL77919372-209981"
  },
  "r403": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=119202524&loc=SL77919379-209981"
  },
  "r404": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "SubTopic": "30",
   "Topic": "842",
   "URI": "http://asc.fasb.org/subtopic&trid=77888252"
  },
  "r405": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(bb)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=118948506&loc=d3e107207-111719"
  },
  "r406": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(bb)(1)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=118948506&loc=d3e107207-111719"
  },
  "r407": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(bb)(2)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=118948506&loc=d3e107207-111719"
  },
  "r408": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(bb)(3)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=118948506&loc=d3e107207-111719"
  },
  "r409": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4D",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)(2)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=118948506&loc=SL51823488-111719"
  },
  "r41": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580"
  },
  "r410": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(b)(1)(i)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=109249958&loc=SL6224234-111729"
  },
  "r411": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "50",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=6469459&loc=d3e122501-111745"
  },
  "r412": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122625-111746"
  },
  "r413": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "340",
   "Topic": "928",
   "URI": "http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004"
  },
  "r414": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "25",
   "SubTopic": "20",
   "Topic": "940",
   "URI": "http://asc.fasb.org/extlink&oid=68072869&loc=d3e41242-110953"
  },
  "r415": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "210",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=117340910&loc=d3e59706-112781"
  },
  "r416": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(1))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r417": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(10))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r418": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(11))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r419": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(16))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r42": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580"
  },
  "r420": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(23))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r421": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(3))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r422": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(4))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r423": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(5))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r424": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(6)(a)(1))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r425": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(6))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r426": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(7)(d))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r427": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03.10(4))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r428": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03.10)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r429": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03.12)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r43": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(f)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580"
  },
  "r430": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03.13(1))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r431": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03.13,16)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r432": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03.15)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r433": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03.17)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r434": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03.2)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r435": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03.4)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r436": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03.7)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r437": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04(11))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260"
  },
  "r438": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04(13))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260"
  },
  "r439": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04(15))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260"
  },
  "r44": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(h)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580"
  },
  "r440": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04(22))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260"
  },
  "r441": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04(23))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260"
  },
  "r442": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04.1)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260"
  },
  "r443": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04.1-5)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260"
  },
  "r444": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04.10)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260"
  },
  "r445": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04.11)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260"
  },
  "r446": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04.12)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260"
  },
  "r447": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04.13(c),(d))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260"
  },
  "r448": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04.13)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260"
  },
  "r449": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04.14(b))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260"
  },
  "r45": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(i)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580"
  },
  "r450": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04.14(d))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260"
  },
  "r451": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04.14)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260"
  },
  "r452": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04.4)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260"
  },
  "r453": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04.6)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260"
  },
  "r454": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04.8)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260"
  },
  "r455": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04.9)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260"
  },
  "r456": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "230",
   "Subparagraph": "(b)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6477933&loc=d3e60009-112784"
  },
  "r457": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "320",
   "Subparagraph": "(a)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=75019621&loc=d3e62586-112803"
  },
  "r458": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "320",
   "Subparagraph": "(b)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=75019621&loc=d3e62586-112803"
  },
  "r459": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "320",
   "Subparagraph": "(c)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=75019621&loc=d3e62586-112803"
  },
  "r46": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(i),(j),(k)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580"
  },
  "r460": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "320",
   "Subparagraph": "(d)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=75019621&loc=d3e62586-112803"
  },
  "r461": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "325",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=75031641&loc=d3e63345-112809"
  },
  "r462": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "405",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6957935&loc=d3e64057-112817"
  },
  "r463": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "405",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=116652737&loc=d3e64164-112818"
  },
  "r464": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "470",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822"
  },
  "r465": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "470",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=75038535&loc=d3e64684-112823"
  },
  "r466": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "20",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=27015749&loc=d3e569990-122904"
  },
  "r467": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(1)(b))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910"
  },
  "r468": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(1)(g))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910"
  },
  "r469": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(10))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910"
  },
  "r47": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(i-k)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580"
  },
  "r470": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(12))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910"
  },
  "r471": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(16))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910"
  },
  "r472": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(23)(a)(4))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910"
  },
  "r473": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(25))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910"
  },
  "r474": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(8))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910"
  },
  "r475": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03.(a),19)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910"
  },
  "r476": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(18))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=116637232&loc=SL114874131-224263"
  },
  "r477": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(19))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=116637232&loc=SL114874131-224263"
  },
  "r478": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(4))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=116637232&loc=SL114874131-224263"
  },
  "r479": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(8))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=116637232&loc=SL114874131-224263"
  },
  "r48": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(j)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580"
  },
  "r480": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04.4)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=116637232&loc=SL114874131-224263"
  },
  "r481": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "310",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=118959141&loc=d3e21286-158488"
  },
  "r482": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "310",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=118959141&loc=d3e21310-158488"
  },
  "r483": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "310",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=117337389&loc=d3e21493-158490"
  },
  "r484": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4H",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=116884468&loc=SL65671331-158438"
  },
  "r485": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13H",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "40",
   "Subparagraph": "(a)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=117419784&loc=SL117783719-158441"
  },
  "r486": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "80",
   "Subparagraph": "(e)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=117420044&loc=d3e19393-158473"
  },
  "r487": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "30",
   "SubTopic": "805",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=99383031&loc=d3e30256-158563"
  },
  "r488": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "220",
   "Subparagraph": "(k)",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=118262090&loc=SL114874205-224268"
  },
  "r489": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.6-07.2(a),(b),(c),(d))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=116637345&loc=SL114874292-224272"
  },
  "r49": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580"
  },
  "r490": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12(2)(i))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=50485924&loc=d3e611133-123010"
  },
  "r491": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12)",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=50485924&loc=d3e611133-123010"
  },
  "r492": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12C(1)(a))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=50485924&loc=d3e611225-123010"
  },
  "r493": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12C)",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=50485924&loc=d3e611225-123010"
  },
  "r494": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-13(1))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=50485924&loc=d3e611282-123010"
  },
  "r495": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-13)",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=50485924&loc=d3e611282-123010"
  },
  "r496": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-14)",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=50485924&loc=d3e611322-123010"
  },
  "r497": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-15(Column A))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=50485924&loc=d3e611379-123010"
  },
  "r498": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-15)",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=50485924&loc=d3e611379-123010"
  },
  "r499": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "360",
   "Subparagraph": "(SX 210.12-28(Footnote 4))",
   "Topic": "970",
   "URI": "http://asc.fasb.org/extlink&oid=6590653&loc=d3e638233-123024"
  },
  "r5": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(14))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r50": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=d3e637-108580"
  },
  "r500": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "b"
  },
  "r501": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "d1-1"
  },
  "r502": {
   "Name": "Form 10-Q",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "13",
   "Subsection": "a-13"
  },
  "r503": {
   "Name": "Forms 10-K, 10-Q, 20-F",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "13",
   "Subsection": "a-1-"
  },
  "r504": {
   "Name": "Regulation 12B",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "b-2"
  },
  "r505": {
   "Name": "Regulation S-T",
   "Number": "232",
   "Publisher": "SEC",
   "Section": "405"
  },
  "r51": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=d3e681-108580"
  },
  "r52": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580"
  },
  "r53": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "17B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL34724394-108580"
  },
  "r54": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669619-108580"
  },
  "r55": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669619-108580"
  },
  "r56": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669619-108580"
  },
  "r57": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669625-108580"
  },
  "r58": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669625-108580"
  },
  "r59": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=d3e557-108580"
  },
  "r6": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(17))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r60": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118951672&loc=d3e1436-108581"
  },
  "r61": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(1)(e))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868656-224227"
  },
  "r62": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(210.5-03(11))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r63": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(10))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r64": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(20))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r65": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(21))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r66": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(b)(4))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r67": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.6)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r68": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3151-108585"
  },
  "r69": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585"
  },
  "r7": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(19))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r70": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585"
  },
  "r71": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585"
  },
  "r72": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585"
  },
  "r73": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585"
  },
  "r74": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585"
  },
  "r75": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585"
  },
  "r76": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585"
  },
  "r77": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585"
  },
  "r78": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585"
  },
  "r79": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "16",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3337-108585"
  },
  "r8": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(2))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r80": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "17",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3367-108585"
  },
  "r81": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "19",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3444-108585"
  },
  "r82": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "21",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3461-108585"
  },
  "r83": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "21C",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=SL94080552-108585"
  },
  "r84": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "24",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3521-108585"
  },
  "r85": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3536-108585"
  },
  "r86": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3536-108585"
  },
  "r87": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585"
  },
  "r88": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585"
  },
  "r89": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585"
  },
  "r9": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(22))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r90": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3044-108585"
  },
  "r91": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3095-108585"
  },
  "r92": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3098-108585"
  },
  "r93": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=98513485&loc=d3e4297-108586"
  },
  "r94": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586"
  },
  "r95": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=98513485&loc=d3e4313-108586"
  },
  "r96": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=98513485&loc=d3e4332-108586"
  },
  "r97": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=98513485&loc=SL98516268-108586"
  },
  "r98": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790"
  },
  "r99": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(h))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  }
 },
 "version": "2.1"
}
