{
 "instance": {
  "pegi2019093010q.htm": {
   "axisCustom": 1,
   "axisStandard": 41,
   "contextCount": 583,
   "dts": {
    "calculationLink": {
     "local": [
      "pegi-20190930_cal.xml"
     ]
    },
    "definitionLink": {
     "local": [
      "pegi-20190930_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": [
      "pegi2019093010q.htm"
     ]
    },
    "labelLink": {
     "local": [
      "pegi-20190930_lab.xml"
     ],
     "remote": [
      "http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-doc-2019-01-31.xml",
      "https://xbrl.sec.gov/dei/2019/dei-doc-2019-01-31.xml"
     ]
    },
    "presentationLink": {
     "local": [
      "pegi-20190930_pre.xml"
     ]
    },
    "referenceLink": {
     "remote": [
      "https://xbrl.sec.gov/dei/2019/dei-ref-2019-01-31.xml",
      "http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-ref-2019-01-31.xml"
     ]
    },
    "schema": {
     "local": [
      "pegi-20190930.xsd"
     ],
     "remote": [
      "http://xbrl.fasb.org/srt/2019/elts/srt-types-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/2006/ref-2006-02-27.xsd",
      "http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd",
      "http://www.xbrl.org/2005/xbrldt-2005.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",
      "http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd",
      "http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd",
      "http://www.xbrl.org/lrr/role/net-2009-12-16.xsd",
      "https://xbrl.sec.gov/currency/2019/currency-2019-01-31.xsd",
      "https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd",
      "https://xbrl.sec.gov/exch/2019/exch-2019-01-31.xsd",
      "http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd",
      "http://xbrl.sec.gov/naics/2017/naics-2017-01-31.xsd",
      "http://xbrl.sec.gov/sic/2011/sic-2011-01-31.xsd",
      "https://xbrl.sec.gov/stpr/2018/stpr-2018-01-31.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",
      "http://www.xbrl.org/lrr/role/deprecated-2009-12-16.xsd"
     ]
    }
   },
   "elementCount": 793,
   "entityCount": 1,
   "hidden": {
    "http://fasb.org/us-gaap/2019-01-31": 57,
    "http://www.patternenergy.com/20190930": 10,
    "http://xbrl.sec.gov/dei/2019-01-31": 5,
    "total": 72
   },
   "keyCustom": 78,
   "keyStandard": 424,
   "memberCustom": 107,
   "memberStandard": 56,
   "nsprefix": "pegi",
   "nsuri": "http://www.patternenergy.com/20190930",
   "report": {
    "R1": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dei:DocumentType",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "document",
     "isDefault": "true",
     "longName": "0001000 - Document - Cover Page",
     "role": "http://www.patternenergy.com/role/CoverPage",
     "shortName": "Cover Page",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dei:DocumentType",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R10": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2101100 - Disclosure - Organization",
     "role": "http://www.patternenergy.com/role/Organization",
     "shortName": "Organization",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R11": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:SignificantAccountingPoliciesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2101100 - Disclosure - Summary of Significant Accounting Policies",
     "role": "http://www.patternenergy.com/role/SummaryOfSignificantAccountingPolicies",
     "shortName": "Summary of Significant Accounting Policies",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:SignificantAccountingPoliciesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R12": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:RevenueFromContractWithCustomerTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2102100 - Disclosure - Revenue",
     "role": "http://www.patternenergy.com/role/Revenue",
     "shortName": "Revenue",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:RevenueFromContractWithCustomerTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R13": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2107100 - Disclosure - Divested Operations",
     "role": "http://www.patternenergy.com/role/DivestedOperations",
     "shortName": "Divested Operations",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R14": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:BusinessCombinationDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2108100 - Disclosure - Acquisitions",
     "role": "http://www.patternenergy.com/role/Acquisitions",
     "shortName": "Acquisitions",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:BusinessCombinationDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R15": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2109100 - Disclosure - Property, Plant and Equipment",
     "role": "http://www.patternenergy.com/role/PropertyPlantAndEquipment",
     "shortName": "Property, Plant and Equipment",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R16": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:VariableInterestEntityDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2113100 - Disclosure - Variable Interest Entities",
     "role": "http://www.patternenergy.com/role/VariableInterestEntities",
     "shortName": "Variable Interest Entities",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:VariableInterestEntityDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R17": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:EquityMethodInvestmentsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2114100 - Disclosure - Unconsolidated Investments",
     "role": "http://www.patternenergy.com/role/UnconsolidatedInvestments",
     "shortName": "Unconsolidated Investments",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:EquityMethodInvestmentsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R18": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DebtDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2115100 - Disclosure - Debt",
     "role": "http://www.patternenergy.com/role/Debt",
     "shortName": "Debt",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DebtDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R19": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2117100 - Disclosure - Derivative Instruments",
     "role": "http://www.patternenergy.com/role/DerivativeInstruments",
     "shortName": "Derivative Instruments",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R2": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock",
       "us-gaap:ScheduleOfRestrictedCashAndCashEquivalentsTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:CashAndCashEquivalentsAtCarryingValue",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1001000 - Statement - Consolidated Balance Sheets",
     "role": "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
     "shortName": "Consolidated Balance Sheets",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3",
      "decimals": "-6",
      "lang": null,
      "name": "pegi:CashCollateralfromDerivativeCounterparty",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R20": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:LesseeOperatingLeasesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2121100 - Disclosure - Leases",
     "role": "http://www.patternenergy.com/role/Leases",
     "shortName": "Leases",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:LesseeOperatingLeasesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R21": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ComprehensiveIncomeNoteTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2122100 - Disclosure - Accumulated Other Comprehensive Loss",
     "role": "http://www.patternenergy.com/role/AccumulatedOtherComprehensiveLoss",
     "shortName": "Accumulated Other Comprehensive Loss",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ComprehensiveIncomeNoteTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R22": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:FairValueDisclosuresTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2123100 - Disclosure - Fair Value Measurements",
     "role": "http://www.patternenergy.com/role/FairValueMeasurements",
     "shortName": "Fair Value Measurements",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:FairValueDisclosuresTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R23": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:StockholdersEquityNoteDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2124100 - Disclosure - Stockholders' Equity",
     "role": "http://www.patternenergy.com/role/StockholdersEquity",
     "shortName": "Stockholders' Equity",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:StockholdersEquityNoteDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R24": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:EarningsPerShareTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2125100 - Disclosure - Earnings (Loss) Per Share",
     "role": "http://www.patternenergy.com/role/EarningsLossPerShare",
     "shortName": "Earnings (Loss) Per Share",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:EarningsPerShareTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R25": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2126100 - Disclosure - Commitments and Contingencies",
     "role": "http://www.patternenergy.com/role/CommitmentsAndContingencies",
     "shortName": "Commitments and Contingencies",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R26": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:RelatedPartyTransactionsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2127100 - Disclosure - Related Party Transactions",
     "role": "http://www.patternenergy.com/role/RelatedPartyTransactions",
     "shortName": "Related Party Transactions",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:RelatedPartyTransactionsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R27": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:SegmentReportingDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2128100 - Disclosure - Segment Reporting",
     "role": "http://www.patternenergy.com/role/SegmentReporting",
     "shortName": "Segment Reporting",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:SegmentReportingDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R28": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:SubsequentEventsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2129100 - Disclosure - Subsequent Events",
     "role": "http://www.patternenergy.com/role/SubsequentEvents",
     "shortName": "Subsequent Events",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:SubsequentEventsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R29": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ConsolidationPolicyTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2201201 - Disclosure - Summary of Significant Accounting Policies (Policies)",
     "role": "http://www.patternenergy.com/role/SummaryOfSignificantAccountingPoliciesPolicies",
     "shortName": "Summary of Significant Accounting Policies (Policies)",
     "subGroupType": "policies",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ConsolidationPolicyTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R3": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:CommonStockParOrStatedValuePerShare",
      "reportCount": 1,
      "unitRef": "usdPerShare",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1001501 - Statement - Consolidated Balance Sheets (Parenthetical)",
     "role": "http://www.patternenergy.com/role/ConsolidatedBalanceSheetsParenthetical",
     "shortName": "Consolidated Balance Sheets (Parenthetical)",
     "subGroupType": "parenthetical",
     "uniqueAnchor": null
    },
    "R30": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfRestrictedCashAndCashEquivalentsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2301302 - Disclosure - Summary of Significant Accounting Policies (Tables)",
     "role": "http://www.patternenergy.com/role/SummaryOfSignificantAccountingPoliciesTables",
     "shortName": "Summary of Significant Accounting Policies (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfRestrictedCashAndCashEquivalentsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R31": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DisaggregationOfRevenueTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2302301 - Disclosure - Revenue (Tables)",
     "role": "http://www.patternenergy.com/role/RevenueTables",
     "shortName": "Revenue (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DisaggregationOfRevenueTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R32": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:BusinessAcquisitionProFormaInformationTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2308301 - Disclosure - Acquisitions (Tables)",
     "role": "http://www.patternenergy.com/role/AcquisitionsTables",
     "shortName": "Acquisitions (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:BusinessAcquisitionProFormaInformationTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R33": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:PropertyPlantAndEquipmentTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2309301 - Disclosure - Property, Plant and Equipment (Tables)",
     "role": "http://www.patternenergy.com/role/PropertyPlantAndEquipmentTables",
     "shortName": "Property, Plant and Equipment (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:PropertyPlantAndEquipmentTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R34": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfVariableInterestEntitiesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2313301 - Disclosure - Variable Interest Entities (Tables)",
     "role": "http://www.patternenergy.com/role/VariableInterestEntitiesTables",
     "shortName": "Variable Interest Entities (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfVariableInterestEntitiesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R35": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:EquityMethodInvestmentsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2314301 - Disclosure - Unconsolidated Investments (Tables)",
     "role": "http://www.patternenergy.com/role/UnconsolidatedInvestmentsTables",
     "shortName": "Unconsolidated Investments (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:EquityMethodInvestmentsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R36": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfDebtInstrumentsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2315301 - Disclosure - Debt (Tables)",
     "role": "http://www.patternenergy.com/role/DebtTables",
     "shortName": "Debt (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfDebtInstrumentsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R37": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2317301 - Disclosure - Derivative Instruments (Tables)",
     "role": "http://www.patternenergy.com/role/DerivativeInstrumentsTables",
     "shortName": "Derivative Instruments (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R38": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "pegi:AssetsAndLiabilitiesLesseeTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2321301 - Disclosure - Leases (Tables)",
     "role": "http://www.patternenergy.com/role/LeasesTables",
     "shortName": "Leases (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "pegi:AssetsAndLiabilitiesLesseeTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R39": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2322301 - Disclosure - Accumulated Other Comprehensive Loss (Tables)",
     "role": "http://www.patternenergy.com/role/AccumulatedOtherComprehensiveLossTables",
     "shortName": "Accumulated Other Comprehensive Loss (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R4": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3QTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:Revenues",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1002000 - Statement - Consolidated Statements of Operations",
     "role": "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations",
     "shortName": "Consolidated Statements of Operations",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3QTD",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:UtilitiesOperatingExpenseMaintenanceAndOperations",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R40": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2323301 - Disclosure - Fair Value Measurements (Tables)",
     "role": "http://www.patternenergy.com/role/FairValueMeasurementsTables",
     "shortName": "Fair Value Measurements (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R41": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "pegi:NoncontrollingInterestsByProjectTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2324301 - Disclosure - Stockholders' Equity (Tables)",
     "role": "http://www.patternenergy.com/role/StockholdersEquityTables",
     "shortName": "Stockholders' Equity (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "pegi:NoncontrollingInterestsByProjectTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R42": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2325301 - Disclosure - Earnings (Loss) Per Share (Tables)",
     "role": "http://www.patternenergy.com/role/EarningsLossPerShareTables",
     "shortName": "Earnings (Loss) Per Share (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R43": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "pegi:RelatedPartyTransactionsReceivableandPayableTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2327301 - Disclosure - Related Party Transactions (Tables)",
     "role": "http://www.patternenergy.com/role/RelatedPartyTransactionsTables",
     "shortName": "Related Party Transactions (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "pegi:RelatedPartyTransactionsReceivableandPayableTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R44": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfSegmentReportingInformationBySegmentTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2328301 - Disclosure - Segment Reporting (Tables)",
     "role": "http://www.patternenergy.com/role/SegmentReportingTables",
     "shortName": "Segment Reporting (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfSegmentReportingInformationBySegmentTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R45": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "pegi:NumberOfRenewableEnergyProjectsWithOwnershipInterestsHeld",
      "reportCount": 1,
      "unique": true,
      "unitRef": "project",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2401401 - Disclosure - Organization - Narrative (Details)",
     "role": "http://www.patternenergy.com/role/OrganizationNarrativeDetails",
     "shortName": "Organization - Narrative (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "pegi:NumberOfRenewableEnergyProjectsWithOwnershipInterestsHeld",
      "reportCount": 1,
      "unique": true,
      "unitRef": "project",
      "xsiNil": "false"
     }
    },
    "R46": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock",
       "us-gaap:ScheduleOfRestrictedCashAndCashEquivalentsTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:CashAndCashEquivalentsAtCarryingValue",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2401403 - Disclosure - Summary of Significant Accounting Policies - Reconciliation of Cash Cash Equivalent and Restricted Cash As Presented in SCF (Details)",
     "role": "http://www.patternenergy.com/role/SummaryOfSignificantAccountingPoliciesReconciliationOfCashCashEquivalentAndRestrictedCashAsPresentedInScfDetails",
     "shortName": "Summary of Significant Accounting Policies - Reconciliation of Cash Cash Equivalent and Restricted Cash As Presented in SCF (Details)",
     "subGroupType": "details",
     "uniqueAnchor": null
    },
    "R47": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "pegi:AssetsAndLiabilitiesLesseeTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:OperatingLeaseRightOfUseAsset",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2401404 - Disclosure - Summary of Significant Accounting Policies - Narrative (Details)",
     "role": "http://www.patternenergy.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails",
     "shortName": "Summary of Significant Accounting Policies - Narrative (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "I2019Q1Jan01_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_us-gaap_AccountingStandardsUpdate201602Member",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:OperatingLeaseRightOfUseAsset",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R48": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:DisaggregationOfRevenueTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3QTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2402402 - Disclosure - Revenue - Disaggregation of Revenue (Details)",
     "role": "http://www.patternenergy.com/role/RevenueDisaggregationOfRevenueDetails",
     "shortName": "Revenue - Disaggregation of Revenue (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:DisaggregationOfRevenueTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3QTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R49": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:RevenueRemainingPerformanceObligation",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2402403 - Disclosure - Revenue - Performance Obligations (Details)",
     "role": "http://www.patternenergy.com/role/RevenuePerformanceObligationsDetails",
     "shortName": "Revenue - Performance Obligations (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:RevenueRemainingPerformanceObligation",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R5": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfSegmentReportingInformationBySegmentTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3QTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:ProfitLoss",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1003000 - Statement - Consolidated Statements of Comprehensive Income (Loss)",
     "role": "http://www.patternenergy.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss",
     "shortName": "Consolidated Statements of Comprehensive Income (Loss)",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3QTD",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R50": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3QTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:ContractWithCustomerLiabilityRevenueRecognized",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2402404 - Disclosure - Revenue - Contract Balances (Details)",
     "role": "http://www.patternenergy.com/role/RevenueContractBalancesDetails",
     "shortName": "Revenue - Contract Balances (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3QTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:ContractWithCustomerLiabilityRevenueRecognized",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R51": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "us-gaap:ReconciliationOfOperatingProfitLossFromSegmentsToConsolidatedTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3QTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:AssetImpairmentCharges",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2407401 - Disclosure - Divested Operations - Narrative (Details)",
     "role": "http://www.patternenergy.com/role/DivestedOperationsNarrativeDetails",
     "shortName": "Divested Operations - Narrative (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "I2018Q2May21_us-gaap_DisposalGroupClassificationAxis_us-gaap_DiscontinuedOperationsDisposedOfBySaleMember_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_pegi_ElArrayanSPAMember",
      "decimals": "2",
      "lang": null,
      "name": "pegi:OwnershipPercentage",
      "reportCount": 1,
      "unique": true,
      "unitRef": "number",
      "xsiNil": "false"
     }
    },
    "R52": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": "1",
      "first": true,
      "lang": null,
      "name": "pegi:GeneratingCapacity",
      "reportCount": 1,
      "unitRef": "gw",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2408402 - Disclosure - Acquisitions - Narrative (Details)",
     "role": "http://www.patternenergy.com/role/AcquisitionsNarrativeDetails",
     "shortName": "Acquisitions - Narrative (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "D2018Q1Mar07-07_us-gaap_BusinessAcquisitionAxis_pegi_TsugaruHoldingsMember",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:BusinessCombinationConsiderationTransferred1",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R53": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:BusinessAcquisitionProFormaInformationTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2018Q3QTD_us-gaap_BusinessAcquisitionAxis_pegi_TsugaruHoldingsMember",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:BusinessAcquisitionsProFormaRevenue",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2408403 - Disclosure - Acquisitions - Schedule of Proforma Data (Details)",
     "role": "http://www.patternenergy.com/role/AcquisitionsScheduleOfProformaDataDetails",
     "shortName": "Acquisitions - Schedule of Proforma Data (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:BusinessAcquisitionProFormaInformationTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2018Q3QTD_us-gaap_BusinessAcquisitionAxis_pegi_TsugaruHoldingsMember",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:BusinessAcquisitionsProFormaRevenue",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R54": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "us-gaap:PropertyPlantAndEquipmentTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:PropertyPlantAndEquipmentGross",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2409402 - Disclosure - Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Details)",
     "role": "http://www.patternenergy.com/role/PropertyPlantAndEquipmentScheduleOfPropertyPlantAndEquipmentDetails",
     "shortName": "Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "us-gaap:PropertyPlantAndEquipmentTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:PropertyPlantAndEquipmentGross",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R55": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3QTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:Depreciation",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2409403 - Disclosure - Property, Plant and Equipment - Narrative (Details)",
     "role": "http://www.patternenergy.com/role/PropertyPlantAndEquipmentNarrativeDetails",
     "shortName": "Property, Plant and Equipment - Narrative (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3QTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:Depreciation",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R56": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_pegi_PEGH2InvestmentMember_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis_us-gaap_VariableInterestEntityNotPrimaryBeneficiaryMember",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:VariableInterestEntityNonconsolidatedCarryingAmountAssetsAndLiabilitiesNet",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2413402 - Disclosure - Variable Interest Entities - Additional Information (Details)",
     "role": "http://www.patternenergy.com/role/VariableInterestEntitiesAdditionalInformationDetails",
     "shortName": "Variable Interest Entities - Additional Information (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_pegi_PEGH2InvestmentMember_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis_us-gaap_VariableInterestEntityNotPrimaryBeneficiaryMember",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:VariableInterestEntityNonconsolidatedCarryingAmountAssetsAndLiabilitiesNet",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R57": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock",
       "us-gaap:ScheduleOfRestrictedCashAndCashEquivalentsTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:CashAndCashEquivalentsAtCarryingValue",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2413403 - Disclosure - Variable Interest Entities - Schedule of Variable Interest Entities (Details)",
     "role": "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails",
     "shortName": "Variable Interest Entities - Schedule of Variable Interest Entities (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "us-gaap:ScheduleOfVariableInterestEntitiesTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:CashAndCashEquivalentsAtCarryingValue",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R58": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:EquityMethodInvestmentsTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:EquityMethodInvestments",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2414402 - Disclosure - Unconsolidated Investments - Schedule of Projects Accounted under Equity Method of Accounting (Details)",
     "role": "http://www.patternenergy.com/role/UnconsolidatedInvestmentsScheduleOfProjectsAccountedUnderEquityMethodOfAccountingDetails",
     "shortName": "Unconsolidated Investments - Schedule of Projects Accounted under Equity Method of Accounting (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "td",
       "tr",
       "table",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_pegi_GrandRenewableWindMember",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:EquityMethodInvestments",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R59": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": "1",
      "first": true,
      "lang": null,
      "name": "pegi:GeneratingCapacity",
      "reportCount": 1,
      "unitRef": "gw",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2414403 - Disclosure - Unconsolidated Investments - Narrative (Details)",
     "role": "http://www.patternenergy.com/role/UnconsolidatedInvestmentsNarrativeDetails",
     "shortName": "Unconsolidated Investments - Narrative (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "D2019Q3SD",
      "decimals": null,
      "lang": "en-US",
      "name": "pegi:LongTermEnergySaleTimePeriod",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R6": {
     "firstAnchor": null,
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1003501 - Statement - Consolidated Statements of Comprehensive Income (Loss) (Parenthetical)",
     "role": "http://www.patternenergy.com/role/ConsolidatedStatementsOfComprehensiveIncomeLossParenthetical",
     "shortName": "Consolidated Statements of Comprehensive Income (Loss) (Parenthetical)",
     "subGroupType": "parenthetical",
     "uniqueAnchor": null
    },
    "R60": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "pegi:ScheduleOfAggregateOperatingResultsOfUnconsolidatedInvestmentsTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3QTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:EquityMethodInvestmentSummarizedFinancialInformationRevenue",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2414404 - Disclosure - Unconsolidated Investments - Summarized Operating Results of Unconsolidated Investees (Details)",
     "role": "http://www.patternenergy.com/role/UnconsolidatedInvestmentsSummarizedOperatingResultsOfUnconsolidatedInvesteesDetails",
     "shortName": "Unconsolidated Investments - Summarized Operating Results of Unconsolidated Investees (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "pegi:ScheduleOfAggregateOperatingResultsOfUnconsolidatedInvestmentsTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3QTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:EquityMethodInvestmentSummarizedFinancialInformationRevenue",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R61": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "us-gaap:ScheduleOfDebtInstrumentsTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:DebtInstrumentCarryingAmount",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2415402 - Disclosure - Debt - Schedule of Debt (Details)",
     "role": "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails",
     "shortName": "Debt - Schedule of Debt (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "us-gaap:ScheduleOfDebtInstrumentsTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R62": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "pegi:InterestexpensecomponentsTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3QTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "pegi:InterestAndCommitmentFeesIncurredCorporateLevel",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2415403 - Disclosure - Debt - Schedule of Reconciliation of Interest Expense (Details)",
     "role": "http://www.patternenergy.com/role/DebtScheduleOfReconciliationOfInterestExpenseDetails",
     "shortName": "Debt - Schedule of Reconciliation of Interest Expense (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "pegi:InterestexpensecomponentsTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3QTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "pegi:InterestAndCommitmentFeesIncurredCorporateLevel",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R63": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "us-gaap:ScheduleOfDebtInstrumentsTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:DebtInstrumentCarryingAmount",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2415404 - Disclosure - Debt - Additional Information (Details)",
     "role": "http://www.patternenergy.com/role/DebtAdditionalInformationDetails",
     "shortName": "Debt - Additional Information (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "I2015Q3Jul31_us-gaap_LongtermDebtTypeAxis_us-gaap_ConvertibleDebtMember",
      "decimals": "INF",
      "lang": null,
      "name": "us-gaap:DebtInstrumentInterestRateStatedPercentage",
      "reportCount": 1,
      "unique": true,
      "unitRef": "number",
      "xsiNil": "false"
     }
    },
    "R64": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3_us-gaap_LongtermDebtTypeAxis_us-gaap_ConvertibleDebtMember",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:DebtInstrumentFaceAmount",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2415405 - Disclosure - Debt - Convertible Senior Note (Details)",
     "role": "http://www.patternenergy.com/role/DebtConvertibleSeniorNoteDetails",
     "shortName": "Debt - Convertible Senior Note (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3_us-gaap_LongtermDebtTypeAxis_us-gaap_ConvertibleDebtMember",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:DebtInstrumentUnamortizedDiscount",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R65": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:DerivativeAssetsCurrent",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2417402 - Disclosure - Derivative Instruments - Schedule of Derivative Instruments Classified as Assets (Liabilities) (Details)",
     "role": "http://www.patternenergy.com/role/DerivativeInstrumentsScheduleOfDerivativeInstrumentsClassifiedAsAssetsLiabilitiesDetails",
     "shortName": "Derivative Instruments - Schedule of Derivative Instruments Classified as Assets (Liabilities) (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3_us-gaap_DerivativeInstrumentRiskAxis_us-gaap_InterestRateSwapMember_us-gaap_HedgingDesignationAxis_us-gaap_DesignatedAsHedgingInstrumentMember",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:DerivativeAssetsCurrent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R66": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfNotionalAmountsOfOutstandingDerivativePositionsTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3_us-gaap_DerivativeInstrumentRiskAxis_us-gaap_InterestRateSwapMember_us-gaap_HedgingDesignationAxis_us-gaap_DesignatedAsHedgingInstrumentMember",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:DerivativeNotionalAmount",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2417403 - Disclosure - Derivative Instruments - Notional Amounts of Outstanding Derivative Instruments (Details)",
     "role": "http://www.patternenergy.com/role/DerivativeInstrumentsNotionalAmountsOfOutstandingDerivativeInstrumentsDetails",
     "shortName": "Derivative Instruments - Notional Amounts of Outstanding Derivative Instruments (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfNotionalAmountsOfOutstandingDerivativePositionsTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3_us-gaap_DerivativeInstrumentRiskAxis_us-gaap_InterestRateSwapMember_us-gaap_HedgingDesignationAxis_us-gaap_DesignatedAsHedgingInstrumentMember",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:DerivativeNotionalAmount",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R67": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2417404 - Disclosure - Derivative Instruments - Additional Information (Details)",
     "role": "http://www.patternenergy.com/role/DerivativeInstrumentsAdditionalInformationDetails",
     "shortName": "Derivative Instruments - Additional Information (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R68": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3QTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2417405 - Disclosure - Derivative Instruments - Summary of Effects of Cash Flow Hedges on Consolidated Statements of Operations (Details)",
     "role": "http://www.patternenergy.com/role/DerivativeInstrumentsSummaryOfEffectsOfCashFlowHedgesOnConsolidatedStatementsOfOperationsDetails",
     "shortName": "Derivative Instruments - Summary of Effects of Cash Flow Hedges on Consolidated Statements of Operations (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3QTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R69": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfOtherDerivativesNotDesignatedAsHedgingInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3QTD_us-gaap_DerivativeInstrumentRiskAxis_us-gaap_InterestRateContractMember_us-gaap_HedgingDesignationAxis_us-gaap_NondesignatedMember",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:GainLossOnInterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstruments",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2417406 - Disclosure - Derivative Instruments - Summary of Effects of Undesignated Derivatives on Consolidated Statements of Operations (Details)",
     "role": "http://www.patternenergy.com/role/DerivativeInstrumentsSummaryOfEffectsOfUndesignatedDerivativesOnConsolidatedStatementsOfOperationsDetails",
     "shortName": "Derivative Instruments - Summary of Effects of Undesignated Derivatives on Consolidated Statements of Operations (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfOtherDerivativesNotDesignatedAsHedgingInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3QTD_us-gaap_DerivativeInstrumentRiskAxis_us-gaap_InterestRateContractMember_us-gaap_HedgingDesignationAxis_us-gaap_NondesignatedMember",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:GainLossOnInterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstruments",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R7": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2017Q4_us-gaap_StatementEquityComponentsAxis_us-gaap_CommonStockMember",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:CommonStockSharesIssued",
      "reportCount": 1,
      "unitRef": "shares",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1004000 - Statement - Consolidated Statements of Stockholders' Equity",
     "role": "http://www.patternenergy.com/role/ConsolidatedStatementsOfStockholdersEquity",
     "shortName": "Consolidated Statements of Stockholders' Equity",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2018Q1QTD_us-gaap_StatementEquityComponentsAxis_us-gaap_CommonStockMember",
      "decimals": "INF",
      "lang": null,
      "name": "us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensationGross",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     }
    },
    "R70": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2421402 - Disclosure - Leases - Narrative (Details)",
     "role": "http://www.patternenergy.com/role/LeasesNarrativeDetails",
     "shortName": "Leases - Narrative (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R71": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "pegi:AssetsAndLiabilitiesLesseeTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:OperatingLeaseRightOfUseAsset",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2421403 - Disclosure - Leases - Supplemental Balance Sheet Information (Details)",
     "role": "http://www.patternenergy.com/role/LeasesSupplementalBalanceSheetInformationDetails",
     "shortName": "Leases - Supplemental Balance Sheet Information (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "pegi:AssetsAndLiabilitiesLesseeTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:OperatingLeaseLiabilityCurrent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R72": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2421404 - Disclosure - Leases - Schedule of Maturities of Operating Lease Liabilities (Details)",
     "role": "http://www.patternenergy.com/role/LeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails",
     "shortName": "Leases - Schedule of Maturities of Operating Lease Liabilities (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R73": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:LeaseCostTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3QTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:OperatingLeaseCost",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2421405 - Disclosure - Leases - Schedule of Lease Cost, Supplemental Cash Flow and Other Information (Details)",
     "role": "http://www.patternenergy.com/role/LeasesScheduleOfLeaseCostSupplementalCashFlowAndOtherInformationDetails",
     "shortName": "Leases - Schedule of Lease Cost, Supplemental Cash Flow and Other Information (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:LeaseCostTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3QTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:OperatingLeaseCost",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R74": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2018Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:OperatingLeasesFutureMinimumPaymentsDueCurrent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2421406 - Disclosure - Leases - Schedule of Estimated Future Commitments Related to Operating Leases and Land Agreements (Details)",
     "role": "http://www.patternenergy.com/role/LeasesScheduleOfEstimatedFutureCommitmentsRelatedToOperatingLeasesAndLandAgreementsDetails",
     "shortName": "Leases - Schedule of Estimated Future Commitments Related to Operating Leases and Land Agreements (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2018Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:OperatingLeasesFutureMinimumPaymentsDueCurrent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R75": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q2",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2422402 - Disclosure - Accumulated Other Comprehensive Loss - Summary of Accumulated Other Comprehensive Loss (Details)",
     "role": "http://www.patternenergy.com/role/AccumulatedOtherComprehensiveLossSummaryOfAccumulatedOtherComprehensiveLossDetails",
     "shortName": "Accumulated Other Comprehensive Loss - Summary of Accumulated Other Comprehensive Loss (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "us-gaap:ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R76": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3_us-gaap_FairValueByMeasurementFrequencyAxis_us-gaap_FairValueMeasurementsRecurringMember",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:AssetsFairValueDisclosure",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2423402 - Disclosure - Fair Value Measurements - Financial Assets and (Liabilities) Required Fair Value Measurement on Recurring Basis (Details)",
     "role": "http://www.patternenergy.com/role/FairValueMeasurementsFinancialAssetsAndLiabilitiesRequiredFairValueMeasurementOnRecurringBasisDetails",
     "shortName": "Fair Value Measurements - Financial Assets and (Liabilities) Required Fair Value Measurement on Recurring Basis (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3_us-gaap_FairValueByMeasurementFrequencyAxis_us-gaap_FairValueMeasurementsRecurringMember",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:AssetsFairValueDisclosure",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R77": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2423403 - Disclosure - Fair Value Measurements - Narrative (Details)",
     "role": "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails",
     "shortName": "Fair Value Measurements - Narrative (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "I2018Q1Mar07_us-gaap_BusinessAcquisitionAxis_pegi_TsugaruHoldingsMember",
      "decimals": "-6",
      "lang": null,
      "name": "pegi:BusinessCombinationContingentConsiderationArrangementsAdditionalPayment",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R78": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q2_us-gaap_DerivativeInstrumentRiskAxis_us-gaap_EnergyRelatedDerivativeMember_us-gaap_FairValueByMeasurementFrequencyAxis_us-gaap_FairValueMeasurementsRecurringMember",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2423404 - Disclosure - - Reconciliation of Derivative Assets Measured at Fair Value (Details)",
     "role": "http://www.patternenergy.com/role/ReconciliationOfDerivativeAssetsMeasuredAtFairValueDetails",
     "shortName": "- Reconciliation of Derivative Assets Measured at Fair Value (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q2_us-gaap_DerivativeInstrumentRiskAxis_us-gaap_EnergyRelatedDerivativeMember_us-gaap_FairValueByMeasurementFrequencyAxis_us-gaap_FairValueMeasurementsRecurringMember",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R79": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q2_us-gaap_FairValueByLiabilityClassAxis_pegi_ContingentConsiderationLiabilityMember_us-gaap_FairValueByMeasurementFrequencyAxis_us-gaap_FairValueMeasurementsRecurringMember",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2423405 - Disclosure - Fair Value Measurements - Reconciliation of Contingent Consideration Measured at Fair Value (Details)",
     "role": "http://www.patternenergy.com/role/FairValueMeasurementsReconciliationOfContingentConsiderationMeasuredAtFairValueDetails",
     "shortName": "Fair Value Measurements - Reconciliation of Contingent Consideration Measured at Fair Value (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3QTD_us-gaap_FairValueByLiabilityClassAxis_pegi_ContingentConsiderationLiabilityMember_us-gaap_FairValueByMeasurementFrequencyAxis_us-gaap_FairValueMeasurementsRecurringMember",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R8": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": "2",
      "first": true,
      "lang": null,
      "name": "us-gaap:CommonStockDividendsPerShareDeclared",
      "reportCount": 1,
      "unitRef": "usdPerShare",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1004001 - Statement - Consolidated Statement of Stockholders' Equity (Parenthetical)",
     "role": "http://www.patternenergy.com/role/ConsolidatedStatementOfStockholdersEquityParenthetical",
     "shortName": "Consolidated Statement of Stockholders' Equity (Parenthetical)",
     "subGroupType": "parenthetical",
     "uniqueAnchor": null
    },
    "R80": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3_us-gaap_BusinessAcquisitionAxis_pegi_BroadviewProjectMember_us-gaap_MeasurementInputTypeAxis_us-gaap_MeasurementInputDiscountRateMember",
      "decimals": "2",
      "first": true,
      "lang": null,
      "name": "us-gaap:BusinessCombinationContingentConsiderationLiabilityMeasurementInput",
      "reportCount": 1,
      "unitRef": "number",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2423406 - Disclosure - - Fair Value Level 3 Inputs, Quantitative Information (Details)",
     "role": "http://www.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails",
     "shortName": "- Fair Value Level 3 Inputs, Quantitative Information (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2018Q4_us-gaap_BusinessAcquisitionAxis_pegi_BroadviewProjectMember_us-gaap_FairValueByFairValueHierarchyLevelAxis_us-gaap_FairValueInputsLevel3Member_us-gaap_FairValueByLiabilityClassAxis_pegi_ContingentConsiderationLiabilityMember_us-gaap_FairValueByMeasurementFrequencyAxis_us-gaap_FairValueMeasurementsRecurringMember",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R81": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "us-gaap:ScheduleOfDebtInstrumentsTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:LongTermDebt",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2423407 - Disclosure - Fair Value Measurements - Carrying Amounts and Fair Values of Company's Financial Liabilities (Details)",
     "role": "http://www.patternenergy.com/role/FairValueMeasurementsCarryingAmountsAndFairValuesOfCompanysFinancialLiabilitiesDetails",
     "shortName": "Fair Value Measurements - Carrying Amounts and Fair Values of Company's Financial Liabilities (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "pegi:FinancialInstrumentsNotMeasuredAtFairValueTableTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:LongTermDebtFairValue",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R82": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:CommonStockParOrStatedValuePerShare",
      "reportCount": 1,
      "unitRef": "usdPerShare",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2424402 - Disclosure - Stockholders' Equity - Additional Information (Details)",
     "role": "http://www.patternenergy.com/role/StockholdersEquityAdditionalInformationDetails",
     "shortName": "Stockholders' Equity - Additional Information (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3",
      "decimals": "-6",
      "lang": null,
      "name": "pegi:EquityDistributionAgreementMaximumAggregateSalesPrice",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R83": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:MinorityInterest",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2424403 - Disclosure - Stockholders' Equity - Summary of Noncontrolling Interest Balances By Projects (Details)",
     "role": "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesByProjectsDetails",
     "shortName": "Stockholders' Equity - Summary of Noncontrolling Interest Balances By Projects (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "pegi:NoncontrollingInterestsByProjectTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3_dei_LegalEntityAxis_pegi_LoganGapMember",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:MinorityInterest",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R84": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "pegi:NoncontrollingInterestsByProjectTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2018Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:MinorityInterest",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2424404 - Disclosure - Stockholders' Equity - Summary of Noncontrolling Interest Balances (Details)",
     "role": "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesDetails",
     "shortName": "Stockholders' Equity - Summary of Noncontrolling Interest Balances (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "pegi:NoncontrollingInterestTableTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2018Q3YTD",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:MinorityInterestDecreaseFromRedemptions",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R85": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3QTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2425402 - Disclosure - Earnings (Loss) Per Share - Computations of Class A Basic and Diluted Earnings (Loss) per Share (Details)",
     "role": "http://www.patternenergy.com/role/EarningsLossPerShareComputationsOfClassBasicAndDilutedEarningsLossPerShareDetails",
     "shortName": "Earnings (Loss) Per Share - Computations of Class A Basic and Diluted Earnings (Loss) per Share (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3QTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     }
    },
    "R86": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3QTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "pegi:LandAgreementsRentExpense",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2426401 - Disclosure - Commitments and Contingencies - Narrative (Details)",
     "role": "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails",
     "shortName": "Commitments and Contingencies - Narrative (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3QTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "pegi:LandAgreementsRentExpense",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R87": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "pegi:RelatedPartyTransactionsReceivableandPayableTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:DueFromRelatedParties",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2427402 - Disclosure - Related Party Transactions - Related Party Receivable and Payable (Details)",
     "role": "http://www.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyReceivableAndPayableDetails",
     "shortName": "Related Party Transactions - Related Party Receivable and Payable (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "pegi:RelatedPartyTransactionsReceivableandPayableTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:DueFromRelatedParties",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R88": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3QTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2427403 - Disclosure - Related Party Transactions - Related Party Transaction Revenue and Expenses Included in Statements of Operations (Details)",
     "role": "http://www.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyTransactionRevenueAndExpensesIncludedInStatementsOfOperationsDetails",
     "shortName": "Related Party Transactions - Related Party Transaction Revenue and Expenses Included in Statements of Operations (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfRelatedPartyTransactionsTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3QTD_us-gaap_IncomeStatementLocationAxis_pegi_OtherRevenueMember",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:RevenueFromRelatedParties",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R89": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "pegi:RelatedPartyTransactionsPurchaseAgreementsTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "D2018Q1Mar07-07_us-gaap_BusinessAcquisitionAxis_pegi_TsugaruHoldingsMember",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:PaymentsToAcquireBusinessesGross",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2427404 - Disclosure - Related Party Transactions - Related Party Purchase Agreements (Details)",
     "role": "http://www.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyPurchaseAgreementsDetails",
     "shortName": "Related Party Transactions - Related Party Purchase Agreements (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "pegi:RelatedPartyTransactionsPurchaseAgreementsTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "D2018Q1Mar07-07_us-gaap_BusinessAcquisitionAxis_pegi_TsugaruHoldingsMember",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:PaymentsToAcquireBusinessesGross",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R9": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfSegmentReportingInformationBySegmentTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:ProfitLoss",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1005000 - Statement - Consolidated Statements of Cash Flows",
     "role": "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows",
     "shortName": "Consolidated Statements of Cash Flows",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:DepreciationAmortizationAndAccretionNet",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R90": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_pegi_PatternDevelopment2.0Member",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "pegi:InvestmentinRelatedParty",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2427405 - Disclosure - Related Party Transactions - Narrative (Details)",
     "role": "http://www.patternenergy.com/role/RelatedPartyTransactionsNarrativeDetails",
     "shortName": "Related Party Transactions - Narrative (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FI2019Q3_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_pegi_PatternDevelopment2.0Member",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "pegi:InvestmentinRelatedParty",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R91": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:NumberOfReportableSegments",
      "reportCount": 1,
      "unique": true,
      "unitRef": "segment",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2428402 - Disclosure - Segment Reporting - Narrative (Details)",
     "role": "http://www.patternenergy.com/role/SegmentReportingNarrativeDetails",
     "shortName": "Segment Reporting - Narrative (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:NumberOfReportableSegments",
      "reportCount": 1,
      "unique": true,
      "unitRef": "segment",
      "xsiNil": "false"
     }
    },
    "R92": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3QTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:Revenues",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2428403 - Disclosure - Segment Reporting - Schedule of Segment Information (Details)",
     "role": "http://www.patternenergy.com/role/SegmentReportingScheduleOfSegmentInformationDetails",
     "shortName": "Segment Reporting - Schedule of Segment Information (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfSegmentReportingInformationBySegmentTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3QTD",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:PaymentsToAcquireProductiveAssets",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R93": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3QTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:IncomeLossFromEquityMethodInvestments",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2428404 - Disclosure - Segment Reporting - Reconciliation of Segment Adjusted EBITDA (Details)",
     "role": "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails",
     "shortName": "Segment Reporting - Reconciliation of Segment Adjusted EBITDA (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "us-gaap:ReconciliationOfOperatingProfitLossFromSegmentsToConsolidatedTextBlock",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3QTD",
      "decimals": "-6",
      "lang": null,
      "name": "pegi:UnrealizedGainLossonDerivativesExcludingEquityMethodInvestments",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R94": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": "1",
      "first": true,
      "lang": null,
      "name": "pegi:GeneratingCapacity",
      "reportCount": 1,
      "unitRef": "gw",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2429401 - Disclosure - Subsequent Events - Narrative (Details)",
     "role": "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails",
     "shortName": "Subsequent Events - Narrative (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "pegi2019093010q.htm",
      "contextRef": "D2019Q3InOct_us-gaap_SubsequentEventTypeAxis_us-gaap_SubsequentEventMember",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:ProceedsFromRepaymentsOfDebt",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    }
   },
   "segmentCount": 181,
   "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.patternenergy.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.patternenergy.com/role/CoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_CoverAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Cover page.",
        "label": "Cover page."
       }
      }
     },
     "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.patternenergy.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.patternenergy.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.patternenergy.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.patternenergy.com/role/CoverPage"
     ],
     "xbrltype": "dateItemType"
    },
    "dei_DocumentQuarterlyReport": {
     "auth_ref": [
      "r488"
     ],
     "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.patternenergy.com/role/CoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_DocumentTransitionReport": {
     "auth_ref": [
      "r489"
     ],
     "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.patternenergy.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.patternenergy.com/role/CoverPage"
     ],
     "xbrltype": "submissionTypeItemType"
    },
    "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.patternenergy.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.patternenergy.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.patternenergy.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.patternenergy.com/role/CoverPage"
     ],
     "xbrltype": "stateOrProvinceItemType"
    },
    "dei_EntityCentralIndexKey": {
     "auth_ref": [
      "r490"
     ],
     "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.patternenergy.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.patternenergy.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.patternenergy.com/role/CoverPage"
     ],
     "xbrltype": "yesNoItemType"
    },
    "dei_EntityDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "All the names of the entities being reported upon in a document. Any legal structure used to conduct activities or to hold assets. Some examples of such structures are corporations, partnerships, limited liability companies, grantor trusts, and other trusts. This item does not include business and geographical segments which are included in the geographical or business segments domains.",
        "label": "Entity [Domain]",
        "terseLabel": "Entity [Domain]"
       }
      }
     },
     "localname": "EntityDomain",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsNarrativeDetails",
      "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesByProjectsDetails",
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails",
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "dei_EntityEmergingGrowthCompany": {
     "auth_ref": [
      "r490"
     ],
     "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.patternenergy.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.patternenergy.com/role/CoverPage"
     ],
     "xbrltype": "fileNumberItemType"
    },
    "dei_EntityFilerCategory": {
     "auth_ref": [
      "r490"
     ],
     "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.patternenergy.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.patternenergy.com/role/CoverPage"
     ],
     "xbrltype": "edgarStateCountryItemType"
    },
    "dei_EntityInteractiveDataCurrent": {
     "auth_ref": [
      "r491"
     ],
     "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.patternenergy.com/role/CoverPage"
     ],
     "xbrltype": "yesNoItemType"
    },
    "dei_EntityRegistrantName": {
     "auth_ref": [
      "r490"
     ],
     "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.patternenergy.com/role/CoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityShellCompany": {
     "auth_ref": [
      "r490"
     ],
     "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.patternenergy.com/role/CoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_EntitySmallBusiness": {
     "auth_ref": [
      "r490"
     ],
     "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.patternenergy.com/role/CoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_EntityTaxIdentificationNumber": {
     "auth_ref": [
      "r490"
     ],
     "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.patternenergy.com/role/CoverPage"
     ],
     "xbrltype": "employerIdItemType"
    },
    "dei_LegalEntityAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The set of legal entities associated with a report.",
        "label": "Legal Entity [Axis]",
        "terseLabel": "Legal Entity [Axis]"
       }
      }
     },
     "localname": "LegalEntityAxis",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsNarrativeDetails",
      "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesByProjectsDetails",
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails",
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "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.patternenergy.com/role/CoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_Security12bTitle": {
     "auth_ref": [
      "r486"
     ],
     "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.patternenergy.com/role/CoverPage"
     ],
     "xbrltype": "securityTitleItemType"
    },
    "dei_SecurityExchangeName": {
     "auth_ref": [
      "r487"
     ],
     "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.patternenergy.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.patternenergy.com/role/CoverPage"
     ],
     "xbrltype": "tradingSymbolItemType"
    },
    "pegi_AccumulatedProportionateShareOfEquityInvesteesOtherComprehensiveIncomeMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Accumulated Proportionate Share Of Equity Investees Other Comprehensive Income [Member]",
        "label": "Accumulated Proportionate Share Of Equity Investees Other Comprehensive Income [Member]",
        "terseLabel": "Proportionate Share of Equity Investee\u2019s OCI"
       }
      }
     },
     "localname": "AccumulatedProportionateShareOfEquityInvesteesOtherComprehensiveIncomeMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/AccumulatedOtherComprehensiveLossSummaryOfAccumulatedOtherComprehensiveLossDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_AdjustedEBITDA": {
     "auth_ref": [],
     "calculation": {
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Adjusted EBITDA",
        "label": "Adjusted EBITDA",
        "terseLabel": "Adjusted EBITDA"
       }
      }
     },
     "localname": "AdjustedEBITDA",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails",
      "http://www.patternenergy.com/role/SegmentReportingScheduleOfSegmentInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_AmazonWindFarmFlowerRidgeMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amazon Wind Farm Flower Ridge [Member]",
        "label": "Amazon Wind Farm Flower Ridge [Member]",
        "terseLabel": "Amazon Wind"
       }
      }
     },
     "localname": "AmazonWindFarmFlowerRidgeMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesByProjectsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_AmortizationOfDebtIssuanceCostsAndConstructionInProcess": {
     "auth_ref": [],
     "calculation": {
      "http://www.patternenergy.com/role/DebtScheduleOfReconciliationOfInterestExpenseDetails": {
       "order": 4.0,
       "parentTag": "us-gaap_InterestExpense",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amortization Of Debt Issuance Costs And Construction In Process",
        "label": "Amortization Of Debt Issuance Costs And Construction In Process",
        "terseLabel": "Amortization of financing costs"
       }
      }
     },
     "localname": "AmortizationOfDebtIssuanceCostsAndConstructionInProcess",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DebtScheduleOfReconciliationOfInterestExpenseDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_Amortizationofbasisdifferenceforequitymethodinvestment": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amortization of basis difference for equity method investment",
        "label": "Amortization of basis difference for equity method investment",
        "terseLabel": "Amortization of basis difference for equity method investment"
       }
      }
     },
     "localname": "Amortizationofbasisdifferenceforequitymethodinvestment",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_AomoriPrefectureJapanMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Aomori Prefecture, Japan [Member]",
        "label": "Aomori Prefecture, Japan [Member]",
        "terseLabel": "Aomori Prefecture, Japan"
       }
      }
     },
     "localname": "AomoriPrefectureJapanMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_ArmowMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Armow [Member]",
        "label": "Armow [Member]",
        "terseLabel": "Armow"
       }
      }
     },
     "localname": "ArmowMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsScheduleOfProjectsAccountedUnderEquityMethodOfAccountingDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_AssetAcquisitionAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Asset Acquisition [Axis]",
        "label": "Asset Acquisition [Axis]",
        "terseLabel": "Asset Acquisition [Axis]"
       }
      }
     },
     "localname": "AssetAcquisitionAxis",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "pegi_AssetAcquisitionConsiderationTransferred": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Asset Acquisition, Consideration Transferred",
        "label": "Asset Acquisition, Consideration Transferred",
        "terseLabel": "Consideration transferred"
       }
      }
     },
     "localname": "AssetAcquisitionConsiderationTransferred",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsNarrativeDetails",
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_AssetAcquisitionDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "[Domain] for Asset Acquisition [Axis]",
        "label": "Asset Acquisition [Domain]",
        "terseLabel": "Asset Acquisition [Domain]"
       }
      }
     },
     "localname": "AssetAcquisitionDomain",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_AssetAcquisitionPercentageOfSharesAcquired": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Asset Acquisition Percentage Of Shares Acquired",
        "label": "Asset Acquisition Percentage Of Shares Acquired",
        "terseLabel": "Percentage of shares acquired"
       }
      }
     },
     "localname": "AssetAcquisitionPercentageOfSharesAcquired",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsNarrativeDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "pegi_AssetsAndLiabilitiesLesseeTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Assets And Liabilities, Lessee [Table Text Block]",
        "label": "Assets And Liabilities, Lessee [Table Text Block]",
        "terseLabel": "Supplemental Balance Sheet Information"
       }
      }
     },
     "localname": "AssetsAndLiabilitiesLesseeTableTextBlock",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "pegi_BelleRiverMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Belle River [Member]",
        "label": "Belle River [Member]",
        "terseLabel": "Belle River",
        "verboseLabel": "Belle River"
       }
      }
     },
     "localname": "BelleRiverMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyPurchaseAgreementsDetails",
      "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesByProjectsDetails",
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsNarrativeDetails",
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsScheduleOfProjectsAccountedUnderEquityMethodOfAccountingDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_BroadviewMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Broadview [Member]",
        "label": "Broadview [Member]",
        "terseLabel": "Broadview"
       }
      }
     },
     "localname": "BroadviewMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/StockholdersEquityAdditionalInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_BroadviewProjectMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Broadview Project [Member]",
        "label": "Broadview Project [Member]",
        "terseLabel": "Broadview Project"
       }
      }
     },
     "localname": "BroadviewProjectMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails",
      "http://www.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails",
      "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesByProjectsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_BusinessAcquisitionProFormaExpense": {
     "auth_ref": [],
     "calculation": {
      "http://www.patternenergy.com/role/AcquisitionsScheduleOfProformaDataDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Business Acquisition, Pro Forma Expense",
        "label": "Business Acquisition, Pro Forma Expense",
        "negatedTerseLabel": "Pro forma total expenses"
       }
      }
     },
     "localname": "BusinessAcquisitionProFormaExpense",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsScheduleOfProformaDataDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_BusinessAcquisitionProFormaNetIncomeLossPortionAttributabletoNoncontrollingInterest": {
     "auth_ref": [],
     "calculation": {
      "http://www.patternenergy.com/role/AcquisitionsScheduleOfProformaDataDetails": {
       "order": 2.0,
       "parentTag": "pegi_BusinessAcquisitionProFormaNetIncomeLossPortionAttributabletoParent",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Business Acquisition, Pro Forma Net Income (Loss), Portion Attributable to Noncontrolling Interest",
        "label": "Business Acquisition, Pro Forma Net Income (Loss), Portion Attributable to Noncontrolling Interest",
        "terseLabel": "Less: pro forma net loss attributable to noncontrolling interest"
       }
      }
     },
     "localname": "BusinessAcquisitionProFormaNetIncomeLossPortionAttributabletoNoncontrollingInterest",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsScheduleOfProformaDataDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_BusinessAcquisitionProFormaNetIncomeLossPortionAttributabletoParent": {
     "auth_ref": [],
     "calculation": {
      "http://www.patternenergy.com/role/AcquisitionsScheduleOfProformaDataDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Business Acquisition, Pro Forma Net Income (Loss), Portion Attributable to Parent",
        "label": "Business Acquisition, Pro Forma Net Income (Loss), Portion Attributable to Parent",
        "totalLabel": "Pro forma net income (loss) attributable to Pattern Energy"
       }
      }
     },
     "localname": "BusinessAcquisitionProFormaNetIncomeLossPortionAttributabletoParent",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsScheduleOfProformaDataDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_BusinessCombinationContingentConsiderationArrangementsAdditionalPayment": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Business Combination, Contingent Consideration Arrangements, Additional Payment",
        "label": "Business Combination, Contingent Consideration Arrangements, Additional Payment",
        "terseLabel": "Additional earn-out payment possible"
       }
      }
     },
     "localname": "BusinessCombinationContingentConsiderationArrangementsAdditionalPayment",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_BusinessCombinationContingentConsiderationArrangementsAdditionalPaymentDecreasePerCriteria": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Business Combination, Contingent Consideration Arrangements, Additional Payment, Decrease Per Criteria",
        "label": "Business Combination, Contingent Consideration Arrangements, Additional Payment, Decrease Per Criteria",
        "terseLabel": "Decrease in additional earn-out payment"
       }
      }
     },
     "localname": "BusinessCombinationContingentConsiderationArrangementsAdditionalPaymentDecreasePerCriteria",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_BusinessCombinationContingentConsiderationArrangementsAdditionalPaymentIncreasePerCriteria": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Business Combination, Contingent Consideration Arrangements, Additional Payment, Increase Per Criteria",
        "label": "Business Combination, Contingent Consideration Arrangements, Additional Payment, Increase Per Criteria",
        "terseLabel": "Increase in additional earn-out payment"
       }
      }
     },
     "localname": "BusinessCombinationContingentConsiderationArrangementsAdditionalPaymentIncreasePerCriteria",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesLongtermDebtIncludingAccruedInterest": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Current Liabilities, Long-term Debt, Including Accrued Interest",
        "label": "Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Current Liabilities, Long-term Debt, Including Accrued Interest",
        "verboseLabel": "Debt Assumed"
       }
      }
     },
     "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesLongtermDebtIncludingAccruedInterest",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyPurchaseAgreementsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedNoncurrentLiabilitiesContingentLiability": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Contingent Liability",
        "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Contingent Liability",
        "terseLabel": "Contingent liabilities"
       }
      }
     },
     "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedNoncurrentLiabilitiesContingentLiability",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_CapitalizedInterestCommitmentFeesAndLetterOfCreditFees": {
     "auth_ref": [],
     "calculation": {
      "http://www.patternenergy.com/role/DebtScheduleOfReconciliationOfInterestExpenseDetails": {
       "order": 5.0,
       "parentTag": "us-gaap_InterestExpense",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Capitalized Interest Commitment Fees And Letter Of Credit Fees",
        "label": "Capitalized Interest Commitment Fees And Letter Of Credit Fees",
        "negatedLabel": "Capitalized interest, commitment fees, and letter of credit fees"
       }
      }
     },
     "localname": "CapitalizedInterestCommitmentFeesAndLetterOfCreditFees",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DebtScheduleOfReconciliationOfInterestExpenseDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_CashCollateralfromDerivativeCounterparty": {
     "auth_ref": [],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 3.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The carrying amount of cash collateral received from hedge counterparties in support of energy risk management activities for which there is an offsetting liability within current liabilities. The Company does not have the right\nto pledge, invest, or use the cash collateral for general corporate purposes.",
        "label": "Cash Collateral from Derivative Counterparty",
        "terseLabel": "Counterparty collateral"
       }
      }
     },
     "localname": "CashCollateralfromDerivativeCounterparty",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_ChibaPrefectureJapanMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Chiba Prefecture, Japan [Member]",
        "label": "Chiba Prefecture, Japan [Member]",
        "terseLabel": "Chiba Prefecture, Japan"
       }
      }
     },
     "localname": "ChibaPrefectureJapanMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_CongestionRevenueRightsMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Congestion Revenue Rights [Member]",
        "label": "Congestion Revenue Rights [Member]",
        "terseLabel": "Congestion revenue rights"
       }
      }
     },
     "localname": "CongestionRevenueRightsMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DerivativeInstrumentsNotionalAmountsOfOutstandingDerivativeInstrumentsDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsScheduleOfDerivativeInstrumentsClassifiedAsAssetsLiabilitiesDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsFinancialAssetsAndLiabilitiesRequiredFairValueMeasurementOnRecurringBasisDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_ContingentConsiderationLiabilityMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Contingent Consideration Liability [Member]",
        "label": "Contingent Consideration Liability [Member]",
        "terseLabel": "Contingent Consideration"
       }
      }
     },
     "localname": "ContingentConsiderationLiabilityMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsReconciliationOfContingentConsiderationMeasuredAtFairValueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_ContingentLiabilitiesCurrentMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Contingent Liabilities, Current [Member]",
        "label": "Contingent Liabilities, Current [Member]",
        "terseLabel": "Contingent liabilities, current"
       }
      }
     },
     "localname": "ContingentLiabilitiesCurrentMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyReceivableAndPayableDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_ContingentLiabilitiesNoncurrentMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Contingent Liabilities, Noncurrent [Member]",
        "label": "Contingent Liabilities, Noncurrent [Member]",
        "terseLabel": "Contingent liabilities"
       }
      }
     },
     "localname": "ContingentLiabilitiesNoncurrentMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyReceivableAndPayableDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_ContinuedOperationOfBroadviewMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Continued Operation Of Broadview [Member]",
        "label": "Continued Operation Of Broadview [Member]",
        "terseLabel": "Continued Operation Of Broadview"
       }
      }
     },
     "localname": "ContinuedOperationOfBroadviewMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_ContinuedOperationOfGradyMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Continued Operation Of Grady [Member]",
        "label": "Continued Operation Of Grady [Member]",
        "terseLabel": "Continued Operation Of Grady"
       }
      }
     },
     "localname": "ContinuedOperationOfGradyMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_Convertibleseniornotes2020Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Convertible senior notes 2020 [Member]",
        "label": "Convertible senior notes 2020 [Member]",
        "terseLabel": "2020 Notes"
       }
      }
     },
     "localname": "Convertibleseniornotes2020Member",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_CorporateAndReconcilingItemsMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Corporate And Reconciling Items [Member]",
        "label": "Corporate And Reconciling Items [Member]",
        "terseLabel": "Corporate, Other and Eliminations"
       }
      }
     },
     "localname": "CorporateAndReconcilingItemsMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails",
      "http://www.patternenergy.com/role/SegmentReportingScheduleOfSegmentInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_CurryCountryNewMexicoMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Curry Country, New Mexico [Member]",
        "label": "Curry Country, New Mexico [Member]",
        "terseLabel": "Curry Country, New Mexico"
       }
      }
     },
     "localname": "CurryCountryNewMexicoMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_DebtInstrumentBasisSpreadOnVariableRateInterestPeriod": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Debt Instrument Basis Spread On Variable Rate Interest Period",
        "label": "Debt Instrument Basis Spread On Variable Rate Interest Period",
        "terseLabel": "Interest rate"
       }
      }
     },
     "localname": "DebtInstrumentBasisSpreadOnVariableRateInterestPeriod",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "pegi_DebtInstrumentTermFollowingConversion": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Debt Instrument, Term, Following Conversion",
        "label": "Debt Instrument, Term, Following Conversion",
        "terseLabel": "Debt term, following conversion"
       }
      }
     },
     "localname": "DebtInstrumentTermFollowingConversion",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "pegi_DebtServiceReserveAccountLCMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Debt Service Reserve Account LC [Member]",
        "label": "Debt Service Reserve Account LC [Member]",
        "terseLabel": "Debt Service Reserve Account LC"
       }
      }
     },
     "localname": "DebtServiceReserveAccountLCMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_DepreciationAmortizationAndAccretionFromEBITDACalculation": {
     "auth_ref": [],
     "calculation": {
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails": {
       "order": 8.0,
       "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Depreciation, Amortization And Accretion From EBITDA Calculation",
        "label": "Depreciation, Amortization And Accretion From EBITDA Calculation",
        "negatedTerseLabel": "Depreciation, amortization and accretion"
       }
      }
     },
     "localname": "DepreciationAmortizationAndAccretionFromEBITDACalculation",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_DepreciationAmortizationAndAccretionMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Depreciation, Amortization And Accretion [Member]",
        "label": "Depreciation, Amortization And Accretion [Member]",
        "terseLabel": "Depreciation, amortization and accretion"
       }
      }
     },
     "localname": "DepreciationAmortizationAndAccretionMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_DevelopmentExpenseContingentConsideration": {
     "auth_ref": [],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 2.0,
       "parentTag": "us-gaap_OperatingExpenses",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Development Expense, Contingent Consideration",
        "label": "Development Expense, Contingent Consideration",
        "verboseLabel": "Development expenses"
       }
      }
     },
     "localname": "DevelopmentExpenseContingentConsideration",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_DevelopmentExpenseContingentConsiderationMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Development Expense, Contingent Consideration [Member]",
        "label": "Development Expense, Contingent Consideration [Member]",
        "terseLabel": "Development Expense"
       }
      }
     },
     "localname": "DevelopmentExpenseContingentConsiderationMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueMeasurementsReconciliationOfContingentConsiderationMeasuredAtFairValueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_DevelopmentExpenseContingentConsiderationPolicyPolicyTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Development Expense, Contingent Consideration, Policy [Policy Text Block]",
        "label": "Development Expense, Contingent Consideration, Policy [Policy Text Block]",
        "terseLabel": "Development Expenses"
       }
      }
     },
     "localname": "DevelopmentExpenseContingentConsiderationPolicyPolicyTextBlock",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/SummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "pegi_DevelopmentInvestmentMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Development Investment [Member]",
        "label": "Development Investment [Member]",
        "terseLabel": "Development Investment"
       }
      }
     },
     "localname": "DevelopmentInvestmentMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails",
      "http://www.patternenergy.com/role/SegmentReportingScheduleOfSegmentInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_DisposalGroupIncludingDiscontinuedOperationDistanceOfFacilityFromSantiagoChile": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disposal Group, Including Discontinued Operation, Distance Of Facility From Santiago, Chile",
        "label": "Disposal Group, Including Discontinued Operation, Distance Of Facility From Santiago, Chile",
        "terseLabel": "Distance of facility from Santiago"
       }
      }
     },
     "localname": "DisposalGroupIncludingDiscontinuedOperationDistanceOfFacilityFromSantiagoChile",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DivestedOperationsNarrativeDetails"
     ],
     "xbrltype": "lengthItemType"
    },
    "pegi_DisposalGroupIncludingDiscontinuedOperationGeneratingCapacity": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disposal Group, Including Discontinued Operation, Generating Capacity",
        "label": "Disposal Group, Including Discontinued Operation, Generating Capacity",
        "terseLabel": "Generating capacity"
       }
      }
     },
     "localname": "DisposalGroupIncludingDiscontinuedOperationGeneratingCapacity",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DivestedOperationsNarrativeDetails"
     ],
     "xbrltype": "powerItemType"
    },
    "pegi_DividendsPayableAmountPerShareAnnualized": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Dividends payable amount per share annualized.",
        "label": "Dividends Payable Amount Per Share Annualized",
        "terseLabel": "Dividends annualized (in dollars per share)"
       }
      }
     },
     "localname": "DividendsPayableAmountPerShareAnnualized",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "pegi_ERPPurchaseMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "ERP Purchase [Member]",
        "label": "ERP Purchase [Member]",
        "terseLabel": "ERP Purchase"
       }
      }
     },
     "localname": "ERPPurchaseMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/RelatedPartyTransactionsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_EarnoutAcquisitionAgreementMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Earnout Acquisition Agreement [Member]",
        "label": "Earnout Acquisition Agreement [Member]",
        "terseLabel": "Earnout Acquisition Agreement [Member]"
       }
      }
     },
     "localname": "EarnoutAcquisitionAgreementMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_ElArrayanSPAMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "El Arrayan SPA [Member]",
        "label": "El Arrayan SPA [Member]",
        "terseLabel": "El Arrayan SPA"
       }
      }
     },
     "localname": "ElArrayanSPAMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DivestedOperationsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_ElectricitySalesMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Electricity Sales [Member]",
        "label": "Electricity Sales [Member]",
        "terseLabel": "Electricity sales"
       }
      }
     },
     "localname": "ElectricitySalesMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.patternenergy.com/role/RevenueDisaggregationOfRevenueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_ElectricitySalesToMarketMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Electricity Sales To Market [Member]",
        "label": "Electricity Sales To Market [Member]",
        "terseLabel": "Electricity sales to market"
       }
      }
     },
     "localname": "ElectricitySalesToMarketMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/RevenueDisaggregationOfRevenueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_ElectricitySalesUnderPSAMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Electricity Sales Under PSA [Member]",
        "label": "Electricity Sales Under PSA [Member]",
        "terseLabel": "Electricity sales under PSA"
       }
      }
     },
     "localname": "ElectricitySalesUnderPSAMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/RevenueDisaggregationOfRevenueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_EquityComponentofConvertibleDebtIssuanceCosts": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Equity Component of Convertible Debt Issuance Costs",
        "label": "Equity Component of Convertible Debt Issuance Costs",
        "terseLabel": "Equity component of convertible debt issuance costs"
       }
      }
     },
     "localname": "EquityComponentofConvertibleDebtIssuanceCosts",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DebtConvertibleSeniorNoteDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_EquityDistributionAgreementMaximumAggregateSalesPrice": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The maximum amount of aggregate sales under the Equity Distribution Agreement",
        "label": "Equity Distribution Agreement Maximum Aggregate Sales Price",
        "terseLabel": "Aggregate sales price"
       }
      }
     },
     "localname": "EquityDistributionAgreementMaximumAggregateSalesPrice",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/StockholdersEquityAdditionalInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_EquityDistributionAgreementRemainingAggregateSalesAvailable": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The remaining amount of aggregate sales available under the Equity Distribution Agreement as of the balance sheet date",
        "label": "Equity Distribution Agreement Remaining Aggregate Sales Available",
        "terseLabel": "Aggregate offering price"
       }
      }
     },
     "localname": "EquityDistributionAgreementRemainingAggregateSalesAvailable",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/StockholdersEquityAdditionalInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_EquityIssuanceCostsPaidInPriorPeriodRelatedtoCurrentPeriodOfferings": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Equity Issuance Costs Paid In Prior Period Related to Current Period Offerings",
        "label": "Equity Issuance Costs Paid In Prior Period Related to Current Period Offerings",
        "terseLabel": "Accrual of equity issuance costs"
       }
      }
     },
     "localname": "EquityIssuanceCostsPaidInPriorPeriodRelatedtoCurrentPeriodOfferings",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_EquityMethodInvestmentAdjustments": {
     "auth_ref": [],
     "calculation": {
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails": {
       "order": 5.0,
       "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Equity Method Investment, Adjustments",
        "label": "Equity Method Investment, Adjustments",
        "terseLabel": "Adjustments for unconsolidated investments"
       }
      }
     },
     "localname": "EquityMethodInvestmentAdjustments",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_EquityMethodInvestmentGainLossOnDistributions": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Equity Method Investment, Gain (Loss) On Distributions",
        "label": "Equity Method Investment, Gain (Loss) On Distributions",
        "terseLabel": "Gains on distributions from unconsolidated investments"
       }
      }
     },
     "localname": "EquityMethodInvestmentGainLossOnDistributions",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_EquityMethodInvestmentLoanReceivableAcquired": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Equity Method Investment, Loan Receivable Acquired",
        "label": "Equity Method Investment, Loan Receivable Acquired",
        "terseLabel": "Loan receivable incurred"
       }
      }
     },
     "localname": "EquityMethodInvestmentLoanReceivableAcquired",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_EquityMethodInvestmentRightToContributeMaximumAmount": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Equity Method Investment, Right To Contribute, Maximum Amount",
        "label": "Equity Method Investment, Right To Contribute, Maximum Amount",
        "terseLabel": "Right to contribute, maximum amount"
       }
      }
     },
     "localname": "EquityMethodInvestmentRightToContributeMaximumAmount",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_EquityMethodInvestmentSummarizedFinancialInformationOperatingExpenses": {
     "auth_ref": [],
     "calculation": {
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsSummarizedOperatingResultsOfUnconsolidatedInvesteesDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Equity Method Investment Summarized Financial Information Operating Expenses",
        "label": "Equity Method Investment Summarized Financial Information Operating Expenses",
        "terseLabel": "Operating expenses"
       }
      }
     },
     "localname": "EquityMethodInvestmentSummarizedFinancialInformationOperatingExpenses",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsSummarizedOperatingResultsOfUnconsolidatedInvesteesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_EquityMethodInvestmentSummarizedFinancialInformationOtherIncomeExpenses": {
     "auth_ref": [],
     "calculation": {
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsSummarizedOperatingResultsOfUnconsolidatedInvesteesDetails": {
       "order": 4.0,
       "parentTag": "us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Equity method investment summarized financial information other income (expenses).",
        "label": "Equity Method Investment Summarized Financial Information Other Income Expenses",
        "negatedLabel": "Other expense"
       }
      }
     },
     "localname": "EquityMethodInvestmentSummarizedFinancialInformationOtherIncomeExpenses",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsSummarizedOperatingResultsOfUnconsolidatedInvesteesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_EquityMethodInvestmentSuspendedEquityIncomeLoss": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Equity Method Investment, Suspended Equity Income (Loss)",
        "label": "Equity Method Investment, Suspended Equity Income (Loss)",
        "terseLabel": "Suspended equity earnings"
       }
      }
     },
     "localname": "EquityMethodInvestmentSuspendedEquityIncomeLoss",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_FinancialInstrumentsNotMeasuredAtFairValueTableTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Financial Instruments Not Measured At Fair Value Table [Table Text Block]",
        "label": "Financial Instruments Not Measured At Fair Value Table [Table Text Block]",
        "terseLabel": "Carrying Amounts and Fair Values of Company's Financial Liabilities"
       }
      }
     },
     "localname": "FinancialInstrumentsNotMeasuredAtFairValueTableTableTextBlock",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueMeasurementsTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "pegi_FiniteLivedIntangibleLiabilityNet": {
     "auth_ref": [],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 5.0,
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount recognized as an intangible liability when the contract price is lower than the estimated fair value.",
        "label": "Finite Lived Intangible Liability Net",
        "terseLabel": "Intangible liabilities, net (Note 7)",
        "verboseLabel": "Intangible liability, net"
       }
      }
     },
     "localname": "FiniteLivedIntangibleLiabilityNet",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_FirstNationReserveNo.2LandsOntarioCanadaMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "First Nation Reserve No. 2 Lands, Ontario, Canada [Member]",
        "label": "First Nation Reserve No. 2 Lands, Ontario, Canada [Member]",
        "terseLabel": "First Nation Reserve No. 2 Lands, Ontario, Canada"
       }
      }
     },
     "localname": "FirstNationReserveNo.2LandsOntarioCanadaMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_FurnitureFixturesAndEquipmentMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Furniture Fixtures And Equipment [Member]",
        "label": "Furniture Fixtures And Equipment [Member]",
        "terseLabel": "Furniture, fixtures and equipment"
       }
      }
     },
     "localname": "FurnitureFixturesAndEquipmentMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/PropertyPlantAndEquipmentScheduleOfPropertyPlantAndEquipmentDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_FuttsuMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Futtsu [Member]",
        "label": "Futtsu [Member]",
        "terseLabel": "Futtsu"
       }
      }
     },
     "localname": "FuttsuMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsNarrativeDetails",
      "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesByProjectsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_FuttsuTermLoanMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Futtsu Term Loan [Member]",
        "label": "Futtsu Term Loan [Member]",
        "terseLabel": "Futtsu term loan"
       }
      }
     },
     "localname": "FuttsuTermLoanMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_GeneratingCapacity": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Power generation capacity.",
        "label": "Generating Capacity",
        "terseLabel": "Generating capacity"
       }
      }
     },
     "localname": "GeneratingCapacity",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsNarrativeDetails",
      "http://www.patternenergy.com/role/OrganizationNarrativeDetails",
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails",
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsNarrativeDetails"
     ],
     "xbrltype": "powerItemType"
    },
    "pegi_GradyNewMexicoMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Grady, New Mexico [Member]",
        "label": "Grady, New Mexico [Member]",
        "terseLabel": "Grady, New Mexico"
       }
      }
     },
     "localname": "GradyNewMexicoMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_GradyandCurryCountryNewMexicoMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Grady and Curry Country, New Mexico [Member]",
        "label": "Grady and Curry Country, New Mexico [Member]",
        "terseLabel": "Grady and Curry Country, New Mexico"
       }
      }
     },
     "localname": "GradyandCurryCountryNewMexicoMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_GrandRenewableWindMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Grand Renewable Wind L P [Member]",
        "label": "Grand Renewable Wind L P [Member]",
        "terseLabel": "Grand"
       }
      }
     },
     "localname": "GrandRenewableWindMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsScheduleOfProjectsAccountedUnderEquityMethodOfAccountingDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_GulfWindPromissoryNoteMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Gulf Wind Promissory Note",
        "label": "Gulf Wind Promissory Note [Member]",
        "terseLabel": "Gulf Wind Promissory Note"
       }
      }
     },
     "localname": "GulfWindPromissoryNoteMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails",
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_HatchetRidgeTermLoanMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Hatchet Ridge Term Loan [Member]",
        "label": "Hatchet Ridge Term Loan [Member]",
        "terseLabel": "Hatchet Ridge financing lease obligation"
       }
      }
     },
     "localname": "HatchetRidgeTermLoanMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_HenveyInletFirstNationReserveNo.2LandsOntarioCanadaMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Henvey Inlet First Nation Reserve No. 2 Lands, Ontario, Canada [Member]",
        "label": "Henvey Inlet First Nation Reserve No. 2 Lands, Ontario, Canada [Member]",
        "terseLabel": "Henvey Inlet First Nation Reserve No. 2 Lands, Ontario, Canada"
       }
      }
     },
     "localname": "HenveyInletFirstNationReserveNo.2LandsOntarioCanadaMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_HenveyInletOntarioCanadaMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Henvey Inlet, Ontario, Canada [Member]",
        "label": "Henvey Inlet, Ontario, Canada [Member]",
        "terseLabel": "Henvey Inlet, Ontario, Canada"
       }
      }
     },
     "localname": "HenveyInletOntarioCanadaMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_IncomeLossFromEquityMethodInvestmentsPortionAttributableToIntraEntities": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Income (Loss) From Equity Method Investments, Portion Attributable To Intra-Entities",
        "label": "Income (Loss) From Equity Method Investments, Portion Attributable To Intra-Entities",
        "terseLabel": "Income (Loss) From Equity Method Investments, Portion Attributable To Intra-Entities"
       }
      }
     },
     "localname": "IncomeLossFromEquityMethodInvestmentsPortionAttributableToIntraEntities",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/SegmentReportingScheduleOfSegmentInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_IncomeTaxExpenseBenefitMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Income Tax Expense (Benefit) [Member]",
        "label": "Income Tax Expense (Benefit) [Member]",
        "terseLabel": "Income tax provision"
       }
      }
     },
     "localname": "IncomeTaxExpenseBenefitMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_IncreaseDecreaseInLongTermLiabilities": {
     "auth_ref": [],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 19.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Increase decrease in long term liabilities.",
        "label": "Increase Decrease In Long Term Liabilities",
        "terseLabel": "Other long-term liabilities"
       }
      }
     },
     "localname": "IncreaseDecreaseInLongTermLiabilities",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_IncreaseDecreaseInPropertyPlantAndEquipment": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Reclasses within capitalized development costs, CIP and property.",
        "label": "Increase Decrease In Property Plant And Equipment",
        "terseLabel": "Change in property, plant and equipment"
       }
      }
     },
     "localname": "IncreaseDecreaseInPropertyPlantAndEquipment",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_IncreaseInAnnualDividendRate": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Increase In Annual Dividend Rate",
        "label": "Increase In Annual Dividend Rate",
        "terseLabel": "Increase in annual dividend rate"
       }
      }
     },
     "localname": "IncreaseInAnnualDividendRate",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "pegi_Increasedecreaseinliabilitytoreturncashcollateral": {
     "auth_ref": [],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 16.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Increase (decrease) in liability to return cash collateral to derivative counterparty",
        "label": "Increase (decrease) in liability to return cash collateral",
        "terseLabel": "Counterparty collateral liability"
       }
      }
     },
     "localname": "Increasedecreaseinliabilitytoreturncashcollateral",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_IncrementalBankLoanMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Incremental Bank Loan [Member]",
        "label": "Incremental Bank Loan [Member]",
        "terseLabel": "Incremental Bank Loan"
       }
      }
     },
     "localname": "IncrementalBankLoanMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails",
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_InterestAndCommitmentFeesIncurredCorporateLevel": {
     "auth_ref": [],
     "calculation": {
      "http://www.patternenergy.com/role/DebtScheduleOfReconciliationOfInterestExpenseDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_InterestExpense",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Interest And Commitment Fees Incurred, Corporate Level",
        "label": "Interest And Commitment Fees Incurred, Corporate Level",
        "terseLabel": "Corporate-level interest and commitment fees incurred"
       }
      }
     },
     "localname": "InterestAndCommitmentFeesIncurredCorporateLevel",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DebtScheduleOfReconciliationOfInterestExpenseDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_InterestAndCommitmentFeesIncurredProjectLevel": {
     "auth_ref": [],
     "calculation": {
      "http://www.patternenergy.com/role/DebtScheduleOfReconciliationOfInterestExpenseDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_InterestExpense",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Interest And Commitment Fees Incurred, Project Level",
        "label": "Interest And Commitment Fees Incurred, Project Level",
        "terseLabel": "Project-level interest and commitment fees incurred"
       }
      }
     },
     "localname": "InterestAndCommitmentFeesIncurredProjectLevel",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DebtScheduleOfReconciliationOfInterestExpenseDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_InterestExpenseNetofInterestIncomeMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Interest Expense, Net of Interest Income [Member]",
        "label": "Interest Expense, Net of Interest Income [Member]",
        "terseLabel": "Interest expense, net of interest income"
       }
      }
     },
     "localname": "InterestExpenseNetofInterestIncomeMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_InterestexpensecomponentsTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Interest expense components [Table Text Block]",
        "label": "Interest expense components [Table Text Block]",
        "terseLabel": "Schedule of Reconciliation of Interest Expense"
       }
      }
     },
     "localname": "InterestexpensecomponentsTableTextBlock",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DebtTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "pegi_InterestinWesternInterconnectbythirdpartyMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Interest in Western Interconnect by third party [Member]",
        "label": "Interest in Western Interconnect by third party [Member]",
        "terseLabel": "Interest in Western Interconnect by Third Party"
       }
      }
     },
     "localname": "InterestinWesternInterconnectbythirdpartyMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_InvestmentinRelatedParty": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Investment in Related Party",
        "label": "Investment in Related Party",
        "terseLabel": "Investment in related party"
       }
      }
     },
     "localname": "InvestmentinRelatedParty",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/RelatedPartyTransactionsNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_JapanCreditFacilityMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Japan Credit Facility [Member]",
        "label": "Japan Credit Facility [Member]",
        "terseLabel": "Japan Credit Facility"
       }
      }
     },
     "localname": "JapanCreditFacilityMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails",
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_JapaneseConsumptionTaxFacilityMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Japanese Consumption Tax Facility [Member]",
        "label": "Japanese Consumption Tax Facility [Member]",
        "terseLabel": "Japanese Consumption Tax Facility"
       }
      }
     },
     "localname": "JapaneseConsumptionTaxFacilityMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_KanagiMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Kanagi [Member]",
        "label": "Kanagi [Member]",
        "terseLabel": "Kanagi"
       }
      }
     },
     "localname": "KanagiMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_KochiPrefectureJapanMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Kochi Prefecture, Japan [Member]",
        "label": "Kochi Prefecture, Japan [Member]",
        "terseLabel": "Kochi Prefecture, Japan"
       }
      }
     },
     "localname": "KochiPrefectureJapanMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_LandAgreementsRentExpense": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Land Agreements, Rent Expense",
        "label": "Land Agreements, Rent Expense",
        "terseLabel": "Land agreements, rent expense"
       }
      }
     },
     "localname": "LandAgreementsRentExpense",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_LeaseSupplementalCashFlowAndOtherInformationAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Lease, Supplemental Cash Flow And Other Information [Abstract]",
        "label": "Lease, Supplemental Cash Flow And Other Information [Abstract]",
        "terseLabel": "Lease, Supplemental Cash Flow And Other Information [Abstract]"
       }
      }
     },
     "localname": "LeaseSupplementalCashFlowAndOtherInformationAbstract",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesScheduleOfLeaseCostSupplementalCashFlowAndOtherInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "pegi_LesseeOperatingLeaseRemainingLeaseTerm": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Lessee, Operating Lease, Remaining Lease Term",
        "label": "Lessee, Operating Lease, Remaining Lease Term",
        "terseLabel": "Remaining lease term"
       }
      }
     },
     "localname": "LesseeOperatingLeaseRemainingLeaseTerm",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesNarrativeDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "pegi_LessorOperatingLeasePaymentstobeReceivedEightYears": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Lessor, Operating Lease, Payments to be Received, Eight Years",
        "label": "Lessor, Operating Lease, Payments to be Received, Eight Years",
        "terseLabel": "2026"
       }
      }
     },
     "localname": "LessorOperatingLeasePaymentstobeReceivedEightYears",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_LessorOperatingLeasePaymentstobeReceivedSevenYears": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Lessor, Operating Lease, Payments to be Received, Seven Years",
        "label": "Lessor, Operating Lease, Payments to be Received, Seven Years",
        "terseLabel": "2025"
       }
      }
     },
     "localname": "LessorOperatingLeasePaymentstobeReceivedSevenYears",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_LessorOperatingLeasePaymentstobeReceivedSixYears": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Lessor, Operating Lease, Payments to be Received, Six Years",
        "label": "Lessor, Operating Lease, Payments to be Received, Six Years",
        "terseLabel": "2024"
       }
      }
     },
     "localname": "LessorOperatingLeasePaymentstobeReceivedSixYears",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_LoganGapMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Logan's Gap [Member]",
        "label": "Logan's Gap [Member]",
        "terseLabel": "Logan's Gap"
       }
      }
     },
     "localname": "LoganGapMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesByProjectsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_LongTermEnergySaleTimePeriod": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Long Term Energy Sale Time Period",
        "label": "Long Term Energy Sale Time Period",
        "terseLabel": "PPA of project (in years)"
       }
      }
     },
     "localname": "LongTermEnergySaleTimePeriod",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsNarrativeDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "pegi_MSMLPHoldingsLPMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "MSM LP Holdings LP [Member]",
        "label": "MSM LP Holdings LP [Member]",
        "terseLabel": "MSM LP Holdings LP"
       }
      }
     },
     "localname": "MSMLPHoldingsLPMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_MaximumNumberOfEscalations": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Maximum Number Of Escalations",
        "label": "Maximum Number Of Escalations",
        "terseLabel": "Maximum number of escalations period"
       }
      }
     },
     "localname": "MaximumNumberOfEscalations",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "integerItemType"
    },
    "pegi_MeasurementInputAnnualEnergyProductionLossMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Measurement Input, Annual Energy Production Loss [Member]",
        "label": "Measurement Input, Annual Energy Production Loss [Member]",
        "terseLabel": "Measurement Input, Annual Energy Production Loss"
       }
      }
     },
     "localname": "MeasurementInputAnnualEnergyProductionLossMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_MeasurementInputDeferredPurchasePriceMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Measurement Input, Deferred Purchase Price [Member]",
        "label": "Measurement Input, Deferred Purchase Price [Member]",
        "terseLabel": "Measurement Input, Deferred Purchase Price"
       }
      }
     },
     "localname": "MeasurementInputDeferredPurchasePriceMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_MeikleMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Meikle [Member]",
        "label": "Meikle [Member]",
        "terseLabel": "Meikle"
       }
      }
     },
     "localname": "MeikleMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesByProjectsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_MeikleWindEnergyLimitedPartnershipMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Meikle Wind Energy Limited Partnership [Member]",
        "label": "Meikle Wind Energy Limited Partnership [Member]",
        "terseLabel": "Meikle term loan"
       }
      }
     },
     "localname": "MeikleWindEnergyLimitedPartnershipMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_MergerAgreementMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Merger Agreement [Member]",
        "label": "Merger Agreement [Member]",
        "terseLabel": "Merger Agreement"
       }
      }
     },
     "localname": "MergerAgreementMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_MontSainteMargueriteLongTermLoanMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Mont Sainte Marguerite-Long Term Loan [Member]",
        "label": "Mont Sainte Marguerite-Long Term Loan [Member]",
        "terseLabel": "Mont Sainte Marguerite-long term loan"
       }
      }
     },
     "localname": "MontSainteMargueriteLongTermLoanMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_MontSainteMargueriteMedTermLoanMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Mont Sainte Marguerite-Med Term Loan [Member]",
        "label": "Mont Sainte Marguerite-Med Term Loan [Member]",
        "terseLabel": "Mont Sainte Marguerite-med term loan"
       }
      }
     },
     "localname": "MontSainteMargueriteMedTermLoanMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_MontSainteMargueriteMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Mont Sainte-Marguerite [Member]",
        "label": "Mont Sainte-Marguerite [Member]",
        "terseLabel": "Mont Sainte-Marguerite",
        "verboseLabel": "MSM"
       }
      }
     },
     "localname": "MontSainteMargueriteMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsNarrativeDetails",
      "http://www.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyPurchaseAgreementsDetails",
      "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesByProjectsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_NewJVLPMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "New JV LP [Member]",
        "label": "New JV LP [Member]",
        "terseLabel": "New JV LP"
       }
      }
     },
     "localname": "NewJVLPMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_NonCashIncomeLossFromEquityMethodInvestments": {
     "auth_ref": [],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 7.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Non Cash Income Loss From Equity Method Investments",
        "label": "Non Cash Income Loss From Equity Method Investments",
        "negatedLabel": "(Earnings) losses in unconsolidated investments, net"
       }
      }
     },
     "localname": "NonCashIncomeLossFromEquityMethodInvestments",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_NoncontrollingInterestIncreaseFromNoncontrollingInterestReceivable": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Noncontrolling Interest, Increase From Noncontrolling Interest Receivable",
        "label": "Noncontrolling Interest, Increase From Noncontrolling Interest Receivable",
        "terseLabel": "Pay-go contribution"
       }
      }
     },
     "localname": "NoncontrollingInterestIncreaseFromNoncontrollingInterestReceivable",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/StockholdersEquityAdditionalInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_NoncontrollingInterestIncreasefromContributions": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Noncontrolling Interest, Increase from Contributions",
        "label": "Noncontrolling Interest, Increase from Contributions",
        "terseLabel": "Contributions from noncontrolling interests",
        "verboseLabel": "Contributions from noncontrolling interests"
       }
      }
     },
     "localname": "NoncontrollingInterestIncreasefromContributions",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfStockholdersEquity",
      "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_NoncontrollingInterestTableTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Noncontrolling Interest Table [Table Text Block]",
        "label": "Noncontrolling Interest Table [Table Text Block]",
        "terseLabel": "Summary of Noncontrolling Interest Balances"
       }
      }
     },
     "localname": "NoncontrollingInterestTableTableTextBlock",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/StockholdersEquityTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "pegi_NoncontrollingInterestsByProjectTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "[Table Text Block] for Noncontrolling Interests By Project [Table]",
        "label": "Noncontrolling Interests By Project [Table Text Block]",
        "terseLabel": "Noncontrolling Interests By Project"
       }
      }
     },
     "localname": "NoncontrollingInterestsByProjectTableTextBlock",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/StockholdersEquityTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "pegi_NorthKentMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "North Kent [Member]",
        "label": "North Kent [Member]",
        "terseLabel": "North Kent"
       }
      }
     },
     "localname": "NorthKentMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyPurchaseAgreementsDetails",
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsNarrativeDetails",
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsScheduleOfProjectsAccountedUnderEquityMethodOfAccountingDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_NotionalAmountofOutstandingDerivativeContractsLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "[Line Items] for Notional Amount of Outstanding Derivative Contracts [Table]",
        "label": "Notional Amount of Outstanding Derivative Contracts [Line Items]",
        "terseLabel": "Notional Amount of Outstanding Derivative Contracts [Line Items]"
       }
      }
     },
     "localname": "NotionalAmountofOutstandingDerivativeContractsLineItems",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DerivativeInstrumentsNotionalAmountsOfOutstandingDerivativeInstrumentsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "pegi_NotionalAmountofOutstandingDerivativeContractsTable": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Notional Amount of Outstanding Derivative Contracts [Table]",
        "label": "Notional Amount of Outstanding Derivative Contracts [Table]",
        "terseLabel": "Notional Amount of Outstanding Derivative Contracts [Table]"
       }
      }
     },
     "localname": "NotionalAmountofOutstandingDerivativeContractsTable",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DerivativeInstrumentsNotionalAmountsOfOutstandingDerivativeInstrumentsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "pegi_NumberOfRenewableEnergyProjectsWithOwnershipInterestsHeld": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number Of Renewable Energy Projects With Ownership Interests Held",
        "label": "Number Of Renewable Energy Projects With Ownership Interests Held",
        "terseLabel": "Number of renewable energy projects with ownership interests held"
       }
      }
     },
     "localname": "NumberOfRenewableEnergyProjectsWithOwnershipInterestsHeld",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/OrganizationNarrativeDetails"
     ],
     "xbrltype": "integerItemType"
    },
    "pegi_OMReserveAccountLCMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "O&amp;M Reserve Account LC [Member]",
        "label": "O&amp;M Reserve Account LC [Member]",
        "terseLabel": "O&amp;M Reserve Account LC"
       }
      }
     },
     "localname": "OMReserveAccountLCMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_OcotilloCommercialTermLoanMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Ocotillo Commercial Term Loan [Member]",
        "label": "Ocotillo Commercial Term Loan [Member]",
        "terseLabel": "Ocotillo commercial term loan"
       }
      }
     },
     "localname": "OcotilloCommercialTermLoanMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_OhorayamaMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Ohorayama [Member]",
        "label": "Ohorayama [Member]",
        "terseLabel": "Ohorayama"
       }
      }
     },
     "localname": "OhorayamaMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_OhorayamaTermLoanMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Ohorayama Term Loan [Member]",
        "label": "Ohorayama Term Loan [Member]",
        "terseLabel": "Ohorayama term loan"
       }
      }
     },
     "localname": "OhorayamaTermLoanMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_OperatingBusinessMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Operating Business [Member]",
        "label": "Operating Business [Member]",
        "terseLabel": "Operating Business"
       }
      }
     },
     "localname": "OperatingBusinessMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails",
      "http://www.patternenergy.com/role/SegmentReportingScheduleOfSegmentInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_OperatingWindFarmsMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Operating Wind Farms [Member]",
        "label": "Operating Wind Farms [Member]",
        "terseLabel": "Operating wind farms"
       }
      }
     },
     "localname": "OperatingWindFarmsMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/PropertyPlantAndEquipmentScheduleOfPropertyPlantAndEquipmentDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_OtherComprehensiveIncomeLossShareEquityMethodInvesteeNetOfTax": {
     "auth_ref": [],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss": {
       "order": 2.0,
       "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTax",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Proportionate share of equity investee's other comprehensive (loss) income activity, net of tax benefit (provision).",
        "label": "Other Comprehensive Income Loss Share Equity Method Investee Net Of Tax",
        "terseLabel": "Other comprehensive income (loss) related to equity method investee net of tax impact of less than $(1), ($1), $(2) and ($1), respectively"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossShareEquityMethodInvesteeNetOfTax",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_OtherComprehensiveIncomeLossShareEquityMethodInvesteeTax": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Proportionate share of equity investee's other comprehensive (loss) income activity, net of tax benefit (provision).",
        "label": "Other Comprehensive Income (Loss), Share Equity Method Investee, Tax",
        "negatedTerseLabel": "Equity method investee, tax impact"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossShareEquityMethodInvesteeTax",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfComprehensiveIncomeLossParenthetical"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_OtherElectricitySalesMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Other Electricity Sales [Member]",
        "label": "Other Electricity Sales [Member]",
        "terseLabel": "Other electricity sales"
       }
      }
     },
     "localname": "OtherElectricitySalesMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/RevenueDisaggregationOfRevenueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_OtherExpense": {
     "auth_ref": [],
     "calculation": {
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails": {
       "order": 6.0,
       "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Other Expense",
        "label": "Other Expense",
        "negatedLabel": "Other"
       }
      }
     },
     "localname": "OtherExpense",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_OtherIncomeExpenseMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Other Income (Expense) [Member]",
        "label": "Other Income (Expense) [Member]",
        "terseLabel": "Other Income (Expense), Net"
       }
      }
     },
     "localname": "OtherIncomeExpenseMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsReconciliationOfContingentConsiderationMeasuredAtFairValueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_OtherRevenueMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Other Revenue [Member]",
        "label": "Other Revenue [Member]",
        "netLabel": "Other revenue",
        "terseLabel": "Other revenue from contracts with customers",
        "verboseLabel": "Other revenue"
       }
      }
     },
     "localname": "OtherRevenueMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyTransactionRevenueAndExpensesIncludedInStatementsOfOperationsDetails",
      "http://www.patternenergy.com/role/RevenueDisaggregationOfRevenueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_OtherRevenueRelatedPartyMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Other Revenue, Related Party [Member]",
        "label": "Other Revenue, Related Party [Member]",
        "terseLabel": "Other revenue"
       }
      }
     },
     "localname": "OtherRevenueRelatedPartyMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/RevenueDisaggregationOfRevenueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_OtsukiMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Otsuki [Member]",
        "label": "Otsuki [Member]",
        "terseLabel": "Otsuki"
       }
      }
     },
     "localname": "OtsukiMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_OwnershipPercentage": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Ownership Percentage",
        "label": "Ownership Percentage",
        "terseLabel": "Ownership percentage"
       }
      }
     },
     "localname": "OwnershipPercentage",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails",
      "http://www.patternenergy.com/role/DivestedOperationsNarrativeDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "pegi_PEGH2InvestmentMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "PEGH 2 Investment [Member]",
        "label": "PEGH 2 Investment [Member]",
        "terseLabel": "PEGH 2 Investment"
       }
      }
     },
     "localname": "PEGH2InvestmentMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/VariableInterestEntitiesAdditionalInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_PEGH2Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "PEGH2 [Member]",
        "label": "PEGH2 [Member]",
        "terseLabel": "Pattern Development"
       }
      }
     },
     "localname": "PEGH2Member",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsScheduleOfProjectsAccountedUnderEquityMethodOfAccountingDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_PSPInvestmentsMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "PSP Investments [Member]",
        "label": "PSP Investments [Member]",
        "terseLabel": "PSP Investments"
       }
      }
     },
     "localname": "PSPInvestmentsMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_PacificGasElectricMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Pacific Gas &amp; Electric [Member]",
        "label": "Pacific Gas &amp; Electric [Member]",
        "terseLabel": "Pacific Gas &amp; Electric"
       }
      }
     },
     "localname": "PacificGasElectricMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_PacificUSInc.Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Pacific US Inc. [Member]",
        "label": "Pacific US Inc. [Member]",
        "terseLabel": "Pacific US Inc."
       }
      }
     },
     "localname": "PacificUSInc.Member",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_PanhandleOneMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Panhandle One [Member]",
        "label": "Panhandle One [Member]",
        "terseLabel": "Panhandle 1"
       }
      }
     },
     "localname": "PanhandleOneMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesByProjectsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_PanhandleTwoMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Panhandle Two [Member]",
        "label": "Panhandle Two [Member]",
        "terseLabel": "Panhandle 2"
       }
      }
     },
     "localname": "PanhandleTwoMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails",
      "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesByProjectsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_PatternBelleRiverGPHoldingsInc.Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Pattern Belle River GP Holdings Inc. [Member]",
        "label": "Pattern Belle River GP Holdings Inc. [Member]",
        "terseLabel": "Pattern Belle River GP Holdings Inc."
       }
      }
     },
     "localname": "PatternBelleRiverGPHoldingsInc.Member",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_PatternDevelopment2.0Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Pattern Development 2.0 [Member]",
        "label": "Pattern Development 2.0 [Member]",
        "terseLabel": "Pattern Development 2.0"
       }
      }
     },
     "localname": "PatternDevelopment2.0Member",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/RelatedPartyTransactionsNarrativeDetails",
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails",
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_PatternDevelopmentMSMManagementULCMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Pattern Development MSM Management ULC [Member]",
        "label": "Pattern Development MSM Management ULC [Member]",
        "terseLabel": "Pattern Development MSM Management ULC"
       }
      }
     },
     "localname": "PatternDevelopmentMSMManagementULCMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_PatternEnergyGroupLPMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Pattern Energy Group LP [Member]",
        "label": "Pattern Energy Group LP [Member]",
        "terseLabel": "Pattern Energy Group LP"
       }
      }
     },
     "localname": "PatternEnergyGroupLPMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails",
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails",
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_PatternMSMGPHoldingsInc.Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Pattern MSM GP Holdings, Inc. [Member]",
        "label": "Pattern MSM GP Holdings, Inc. [Member]",
        "terseLabel": "Pattern MSM GP Holdings, Inc."
       }
      }
     },
     "localname": "PatternMSMGPHoldingsInc.Member",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_PatternNorthKentWind1GPHoldingsInc.Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Pattern North Kent Wind 1 GP Holdings Inc. [Member]",
        "label": "Pattern North Kent Wind 1 GP Holdings Inc. [Member]",
        "terseLabel": "Pattern North Kent Wind 1 GP Holdings Inc."
       }
      }
     },
     "localname": "PatternNorthKentWind1GPHoldingsInc.Member",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_PostRockMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Post Rock [Member]",
        "label": "Post Rock [Member]",
        "terseLabel": "Post Rock"
       }
      }
     },
     "localname": "PostRockMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesByProjectsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_PowerSaleAgreementsMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Power Sale Agreements [Member]",
        "label": "Power Sale Agreements [Member]",
        "terseLabel": "Power Sale Agreements"
       }
      }
     },
     "localname": "PowerSaleAgreementsMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_PreferredStockDiscountOnSharesPercentage": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Preferred Stock, Discount On Shares, Percentage",
        "label": "Preferred Stock, Discount On Shares, Percentage",
        "terseLabel": "Preferred stock, discount"
       }
      }
     },
     "localname": "PreferredStockDiscountOnSharesPercentage",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "pegi_PreferredStockDividendRateAfterMaximumNumberOfEscalationsPercentage": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Preferred Stock, Dividend Rate, After Maximum Number Of Escalations, Percentage",
        "label": "Preferred Stock, Dividend Rate, After Maximum Number Of Escalations, Percentage",
        "terseLabel": "Preferred stock, dividend rate after maximum number of escalations"
       }
      }
     },
     "localname": "PreferredStockDividendRateAfterMaximumNumberOfEscalationsPercentage",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "pegi_ProjectExpenseMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Project Expense [Member]",
        "label": "Project Expense [Member]",
        "terseLabel": "Project expense"
       }
      }
     },
     "localname": "ProjectExpenseMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyTransactionRevenueAndExpensesIncludedInStatementsOfOperationsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_ProjectFinanceAgreementsMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Project Finance Agreements [Member]",
        "label": "Project Finance Agreements [Member]",
        "terseLabel": "Project Finance Agreements"
       }
      }
     },
     "localname": "ProjectFinanceAgreementsMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_ProjectedTransmissionWheelingRevenuePeriod": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Projected Transmission Wheeling Revenue, Period",
        "label": "Projected Transmission Wheeling Revenue, Period",
        "terseLabel": "Transmission wheeling revenue, period"
       }
      }
     },
     "localname": "ProjectedTransmissionWheelingRevenuePeriod",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "pegi_RelatedPartyGeneralAndAdministrativeExpenseMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Related Party, General And Administrative Expense [Member]",
        "label": "Related Party, General And Administrative Expense [Member]",
        "terseLabel": "Related party general and administrative"
       }
      }
     },
     "localname": "RelatedPartyGeneralAndAdministrativeExpenseMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyTransactionRevenueAndExpensesIncludedInStatementsOfOperationsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_RelatedPartyManagementServiceFeesMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Related Party Management Service Fees [Member]",
        "label": "Related Party Management Service Fees [Member]",
        "terseLabel": "Related party management service fees"
       }
      }
     },
     "localname": "RelatedPartyManagementServiceFeesMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/RevenueDisaggregationOfRevenueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_RelatedPartyTransactionEarnoutRightsPercentage": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Related Party Transaction, Earnout Rights, Percentage",
        "label": "Related Party Transaction, Earnout Rights, Percentage",
        "terseLabel": "Percent of earnout rights"
       }
      }
     },
     "localname": "RelatedPartyTransactionEarnoutRightsPercentage",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "pegi_RelatedPartyTransactionProfitsInterestPercentage": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Related Party Transaction, Profits Interest, Percentage",
        "label": "Related Party Transaction, Profits Interest, Percentage",
        "terseLabel": "Profits interest in such projects"
       }
      }
     },
     "localname": "RelatedPartyTransactionProfitsInterestPercentage",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "pegi_RelatedPartyTransactionReimbursementFromTransactionsWithRelatedParty": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Related party transaction reimbursement from transactions with related party",
        "label": "Related Party Transaction Reimbursement From Transactions With Related Party",
        "terseLabel": "MSA reimbursement"
       }
      }
     },
     "localname": "RelatedPartyTransactionReimbursementFromTransactionsWithRelatedParty",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyTransactionRevenueAndExpensesIncludedInStatementsOfOperationsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_RelatedPartyTransactionsPurchaseAgreementsTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Related Party Transactions Purchase Agreements [Table Text Block]",
        "label": "Related Party Transactions Purchase Agreements [Table Text Block]",
        "terseLabel": "Related Party Transactions Purchase Agreements"
       }
      }
     },
     "localname": "RelatedPartyTransactionsPurchaseAgreementsTableTextBlock",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/RelatedPartyTransactionsTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "pegi_RelatedPartyTransactionsReceivableandPayableTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Related Party Transactions Receivable and Payable [Table Text Block]",
        "label": "Related Party Transactions Receivable and Payable [Table Text Block]",
        "terseLabel": "Related Party Transactions Receivable and Payable"
       }
      }
     },
     "localname": "RelatedPartyTransactionsReceivableandPayableTableTextBlock",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/RelatedPartyTransactionsTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "pegi_RenewableEnergyCreditsSalesMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Renewable Energy Credits Sales [Member]",
        "label": "Renewable Energy Credits Sales [Member]",
        "terseLabel": "Stand-alone REC sales"
       }
      }
     },
     "localname": "RenewableEnergyCreditsSalesMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/RevenueDisaggregationOfRevenueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_RevolvercreditfacilityMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Revolver credit facility [Member]",
        "label": "Revolver credit facility [Member]",
        "terseLabel": "Corporate Revolving Credit Facility"
       }
      }
     },
     "localname": "RevolvercreditfacilityMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_SalesTaxReceivablePolicyPolicyTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Sales Tax Receivable, Policy [Policy Text Block]",
        "label": "Sales Tax Receivable, Policy [Policy Text Block]",
        "terseLabel": "Sales Tax Receivable"
       }
      }
     },
     "localname": "SalesTaxReceivablePolicyPolicyTextBlock",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/SummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "pegi_SantaIsabelTermLoanMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Santa Isabel Term Loan [Member]",
        "label": "Santa Isabel Term Loan [Member]",
        "terseLabel": "Santa Isabel term loan"
       }
      }
     },
     "localname": "SantaIsabelTermLoanMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_ScheduleOfAggregateOperatingResultsOfUnconsolidatedInvestmentsTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Schedule of Aggregate Operating Results of Unconsolidated Investments [Table Text Block]",
        "label": "Schedule Of Aggregate Operating Results Of Unconsolidated Investments [Table Text Block]",
        "terseLabel": "Schedule of Aggregate Operating Results of Unconsolidated Investments"
       }
      }
     },
     "localname": "ScheduleOfAggregateOperatingResultsOfUnconsolidatedInvestmentsTableTextBlock",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "pegi_SharesSoldUndertheEquityDistributionAgreement": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Shares Sold Under the Equity Distribution Agreement",
        "label": "Shares Sold Under the Equity Distribution Agreement",
        "terseLabel": "Shares sold (in shares)"
       }
      }
     },
     "localname": "SharesSoldUndertheEquityDistributionAgreement",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/StockholdersEquityAdditionalInformationDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "pegi_ShimanePrefectureJapanMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Shimane Prefecture, Japan [Member]",
        "label": "Shimane Prefecture, Japan [Member]",
        "terseLabel": "Shimane Prefecture, Japan"
       }
      }
     },
     "localname": "ShimanePrefectureJapanMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_SouthKentMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "South Kent [Member]",
        "label": "South Kent [Member]",
        "terseLabel": "South Kent"
       }
      }
     },
     "localname": "SouthKentMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsNarrativeDetails",
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsScheduleOfProjectsAccountedUnderEquityMethodOfAccountingDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_StJosephCreditAgreementMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "St Joseph Credit Agreement [Member]",
        "label": "St Joseph Credit Agreement [Member]",
        "terseLabel": "St. Joseph term loan"
       }
      }
     },
     "localname": "StJosephCreditAgreementMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_StillwaterMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Stillwater [Member]",
        "label": "Stillwater [Member]",
        "terseLabel": "Stillwater"
       }
      }
     },
     "localname": "StillwaterMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesByProjectsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_StockReceivableIncludingReturnOfCapital": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Stock Receivable , Including Return Of Capital",
        "label": "Stock Receivable , Including Return Of Capital",
        "terseLabel": "Stock receivable"
       }
      }
     },
     "localname": "StockReceivableIncludingReturnOfCapital",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "pegi_TermConversionOfTsugaruConstructionLoanMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Term Conversion Of Tsugaru Construction Loan [Member]",
        "label": "Term Conversion Of Tsugaru Construction Loan [Member]",
        "terseLabel": "Term Conversion Of Tsugaru Construction Loan"
       }
      }
     },
     "localname": "TermConversionOfTsugaruConstructionLoanMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_TokyoInterbankOfferedRateTIBORMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tokyo Interbank Offered Rate (TIBOR) [Member]",
        "label": "Tokyo Interbank Offered Rate (TIBOR) [Member]",
        "terseLabel": "Tokyo Interbank Offered Rate (TIBOR)"
       }
      }
     },
     "localname": "TokyoInterbankOfferedRateTIBORMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_TransmissionLineMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Transmission Line [Member]",
        "label": "Transmission Line [Member]",
        "terseLabel": "Transmission line"
       }
      }
     },
     "localname": "TransmissionLineMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/PropertyPlantAndEquipmentScheduleOfPropertyPlantAndEquipmentDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_TsugaruConstructionLoanMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tsugaru Construction Loan [Member]",
        "label": "Tsugaru Construction Loan [Member]",
        "terseLabel": "Tsugaru Construction Loan"
       }
      }
     },
     "localname": "TsugaruConstructionLoanMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails",
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_TsugaruCreditFacilityMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tsugaru Credit Facility [Member]",
        "label": "Tsugaru Credit Facility [Member]",
        "terseLabel": "Tsugaru Credit Facility"
       }
      }
     },
     "localname": "TsugaruCreditFacilityMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_TsugaruHoldingsLoanMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tsugaru Holdings Loan [Member]",
        "label": "Tsugaru Holdings Loan [Member]",
        "terseLabel": "Tsugaru Holdings Loan Agreement"
       }
      }
     },
     "localname": "TsugaruHoldingsLoanMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails",
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_TsugaruHoldingsMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tsugaru Holdings [Member]",
        "label": "Tsugaru Holdings [Member]",
        "terseLabel": "Tsugaru Holdings"
       }
      }
     },
     "localname": "TsugaruHoldingsMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsNarrativeDetails",
      "http://www.patternenergy.com/role/AcquisitionsScheduleOfProformaDataDetails",
      "http://www.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails",
      "http://www.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyPurchaseAgreementsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_TsugaruLetterOfCreditFacilitiesMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tsugaru Letter Of Credit Facilities [Member]",
        "label": "Tsugaru Letter Of Credit Facilities [Member]",
        "terseLabel": "Tsugaru Letter Of Credit Facilities"
       }
      }
     },
     "localname": "TsugaruLetterOfCreditFacilitiesMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_TsugaruMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tsugaru [Member]",
        "label": "Tsugaru [Member]",
        "terseLabel": "Tsugaru"
       }
      }
     },
     "localname": "TsugaruMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_TurbineAdvances": {
     "auth_ref": [],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 10.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amounts advanced to turbine suppliers for the manufacture of wind turbines in accordance with turbine supply agreements for the Company's wind power projects and for which the Company has not taken title. Turbine advances are reclassified to construction in progress when the Company takes legal title to the related turbines and are reclassified to property, plant and equipment when the project achieves commercial operation. Depreciation does not commence until projects enter commercial operation and turbine assets are placed in service.",
        "label": "Turbine Advances",
        "terseLabel": "Major construction advances"
       }
      }
     },
     "localname": "TurbineAdvances",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_TurbineManufacturerMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Turbine Manufacturer [Member]",
        "label": "Turbine Manufacturer [Member]",
        "terseLabel": "Turbine Manufacturer"
       }
      }
     },
     "localname": "TurbineManufacturerMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_UnrealizedGainLossonDerivativesExcludingEquityMethodInvestments": {
     "auth_ref": [],
     "calculation": {
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Unrealized Gain (Loss) on Derivatives, Excluding Equity Method Investments",
        "label": "Unrealized Gain (Loss) on Derivatives, Excluding Equity Method Investments",
        "terseLabel": "Unrealized gain (loss) on derivatives"
       }
      }
     },
     "localname": "UnrealizedGainLossonDerivativesExcludingEquityMethodInvestments",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "pegi_Unsecuredseniornotes2024Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Unsecured senior notes 2024 [Member]",
        "label": "Unsecured senior notes 2024 [Member]",
        "terseLabel": "2024 Notes"
       }
      }
     },
     "localname": "Unsecuredseniornotes2024Member",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "pegi_VariableInterestEntitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Variable Interest Entities [Abstract]",
        "label": "Variable Interest Entities [Abstract]"
       }
      }
     },
     "localname": "VariableInterestEntitiesAbstract",
     "nsuri": "http://www.patternenergy.com/20190930",
     "xbrltype": "stringItemType"
    },
    "pegi_WesternInterconnectMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Western Interconnect [Member]",
        "label": "Western Interconnect [Member]",
        "terseLabel": "Western Interconnect term loan"
       }
      }
     },
     "localname": "WesternInterconnectMember",
     "nsuri": "http://www.patternenergy.com/20190930",
     "presentation": [
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_AffiliatedEntityMember": {
     "auth_ref": [
      "r276",
      "r417",
      "r418",
      "r485"
     ],
     "lang": {
      "en-US": {
       "role": {
        "label": "Affiliated Entity [Member]",
        "terseLabel": "Pattern Energy Group LP"
       }
      }
     },
     "localname": "AffiliatedEntityMember",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/RelatedPartyTransactionsNarrativeDetails",
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_ConsolidationItemsAxis": {
     "auth_ref": [
      "r177",
      "r188"
     ],
     "lang": {
      "en-US": {
       "role": {
        "label": "Consolidation Items [Axis]",
        "terseLabel": "Consolidation Items [Axis]"
       }
      }
     },
     "localname": "ConsolidationItemsAxis",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails",
      "http://www.patternenergy.com/role/SegmentReportingScheduleOfSegmentInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_ConsolidationItemsDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Consolidation Items [Domain]",
        "terseLabel": "Consolidation Items [Domain]"
       }
      }
     },
     "localname": "ConsolidationItemsDomain",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails",
      "http://www.patternenergy.com/role/SegmentReportingScheduleOfSegmentInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_CounterpartyNameAxis": {
     "auth_ref": [
      "r74",
      "r145"
     ],
     "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.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_EquityMethodInvesteeNameDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Investment, Name [Domain]",
        "terseLabel": "Investment, Name [Domain]"
       }
      }
     },
     "localname": "EquityMethodInvesteeNameDomain",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsNarrativeDetails",
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsScheduleOfProjectsAccountedUnderEquityMethodOfAccountingDetails",
      "http://www.patternenergy.com/role/VariableInterestEntitiesAdditionalInformationDetails"
     ],
     "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.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails",
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsAdditionalInformationDetails",
      "http://www.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails",
      "http://www.patternenergy.com/role/LeasesNarrativeDetails"
     ],
     "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.patternenergy.com/role/DebtAdditionalInformationDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsAdditionalInformationDetails",
      "http://www.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails",
      "http://www.patternenergy.com/role/LeasesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_OwnershipAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Ownership [Axis]",
        "terseLabel": "Ownership [Axis]"
       }
      }
     },
     "localname": "OwnershipAxis",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsNarrativeDetails",
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails",
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_OwnershipDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Ownership [Domain]",
        "terseLabel": "Ownership [Domain]"
       }
      }
     },
     "localname": "OwnershipDomain",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsNarrativeDetails",
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails",
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_ProductOrServiceAxis": {
     "auth_ref": [
      "r190",
      "r268",
      "r271",
      "r477",
      "r478"
     ],
     "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.patternenergy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.patternenergy.com/role/RevenueDisaggregationOfRevenueDetails"
     ],
     "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.patternenergy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.patternenergy.com/role/RevenueDisaggregationOfRevenueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_RangeAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Statistical Measurement [Axis]",
        "terseLabel": "Statistical Measurement [Axis]"
       }
      }
     },
     "localname": "RangeAxis",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails",
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsAdditionalInformationDetails",
      "http://www.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails",
      "http://www.patternenergy.com/role/LeasesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_RangeMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Statistical Measurement [Domain]",
        "terseLabel": "Statistical Measurement [Domain]"
       }
      }
     },
     "localname": "RangeMember",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails",
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsAdditionalInformationDetails",
      "http://www.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails",
      "http://www.patternenergy.com/role/LeasesNarrativeDetails"
     ],
     "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.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis": {
     "auth_ref": [
      "r198"
     ],
     "lang": {
      "en-US": {
       "role": {
        "label": "Investment, Name [Axis]",
        "terseLabel": "Investment, Name [Axis]"
       }
      }
     },
     "localname": "ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsNarrativeDetails",
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsScheduleOfProjectsAccountedUnderEquityMethodOfAccountingDetails",
      "http://www.patternenergy.com/role/VariableInterestEntitiesAdditionalInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_SegmentGeographicalDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Geographical [Domain]",
        "terseLabel": "Geographical [Domain]"
       }
      }
     },
     "localname": "SegmentGeographicalDomain",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsNarrativeDetails",
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_StatementGeographicalAxis": {
     "auth_ref": [
      "r191",
      "r268",
      "r272",
      "r479",
      "r482",
      "r484"
     ],
     "lang": {
      "en-US": {
       "role": {
        "label": "Geographical [Axis]",
        "terseLabel": "Geographical [Axis]"
       }
      }
     },
     "localname": "StatementGeographicalAxis",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsNarrativeDetails",
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AccountingPoliciesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Accounting Policies [Abstract]"
       }
      }
     },
     "localname": "AccountingPoliciesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_AccountingStandardsUpdate201602Member": {
     "auth_ref": [
      "r399"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Accounting Standards Update 2016-02 Leases (Topic 842).",
        "label": "Accounting Standards Update 2016-02 [Member]",
        "terseLabel": "Accounting Standards Update 2016-02"
       }
      }
     },
     "localname": "AccountingStandardsUpdate201602Member",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AccountsPayableAndOtherAccruedLiabilitiesCurrent": {
     "auth_ref": [],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 1.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of liabilities incurred to vendors for goods and services received, and accrued liabilities classified as other, payable within one year or the normal operating cycle, if longer.",
        "label": "Accounts Payable and Other Accrued Liabilities, Current",
        "terseLabel": "Accounts payable and other accrued liabilities (Note 7)",
        "verboseLabel": "Accounts payable and other accrued liabilities"
       }
      }
     },
     "localname": "AccountsPayableAndOtherAccruedLiabilitiesCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccountsReceivableNetCurrent": {
     "auth_ref": [
      "r21",
      "r42",
      "r193",
      "r194",
      "r269"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 4.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.",
        "label": "Accounts Receivable, after Allowance for Credit Loss, Current",
        "terseLabel": "Trade receivables (Note 7)",
        "verboseLabel": "Trade receivables"
       }
      }
     },
     "localname": "AccountsReceivableNetCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccumulatedAmortizationOfDebtIssuanceCostsLineOfCreditArrangements": {
     "auth_ref": [
      "r395"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of accumulated amortization of debt issuance costs related to line of credit arrangements.",
        "label": "Accumulated Amortization of Debt Issuance Costs, Line of Credit Arrangements",
        "terseLabel": "Deferred financing costs, current, accumulated amortization"
       }
      }
     },
     "localname": "AccumulatedAmortizationOfDebtIssuanceCostsLineOfCreditArrangements",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment": {
     "auth_ref": [
      "r52",
      "r221"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/PropertyPlantAndEquipmentScheduleOfPropertyPlantAndEquipmentDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_PropertyPlantAndEquipmentNet",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.",
        "label": "Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment",
        "negatedLabel": "Less: accumulated depreciation"
       }
      }
     },
     "localname": "AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/PropertyPlantAndEquipmentScheduleOfPropertyPlantAndEquipmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccumulatedGainLossNetCashFlowHedgeParentMember": {
     "auth_ref": [
      "r83",
      "r92",
      "r317"
     ],
     "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": "Effective Portion of Change in Fair Value of Derivatives"
       }
      }
     },
     "localname": "AccumulatedGainLossNetCashFlowHedgeParentMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/AccumulatedOtherComprehensiveLossSummaryOfAccumulatedOtherComprehensiveLossDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember": {
     "auth_ref": [
      "r78",
      "r83",
      "r85",
      "r317"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Accumulated other comprehensive income (loss) resulting from gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges, attributable to the parent.",
        "label": "Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]",
        "terseLabel": "Effective Portion of Change in Fair Value of Derivatives"
       }
      }
     },
     "localname": "AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/AccumulatedOtherComprehensiveLossSummaryOfAccumulatedOtherComprehensiveLossDetails"
     ],
     "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.patternenergy.com/role/AccumulatedOtherComprehensiveLossSummaryOfAccumulatedOtherComprehensiveLossDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax": {
     "auth_ref": [
      "r80",
      "r82",
      "r83"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 4.0,
       "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.patternenergy.com/role/ConsolidatedBalanceSheets"
     ],
     "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.patternenergy.com/role/AccumulatedOtherComprehensiveLossSummaryOfAccumulatedOtherComprehensiveLossDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AccumulatedOtherComprehensiveIncomeMember": {
     "auth_ref": [
      "r79",
      "r83",
      "r85",
      "r318"
     ],
     "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 Income (Loss)"
       }
      }
     },
     "localname": "AccumulatedOtherComprehensiveIncomeMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AccumulatedTranslationAdjustmentMember": {
     "auth_ref": [
      "r76",
      "r83",
      "r85",
      "r318"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Accumulated other comprehensive income (loss) resulting from foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature, attributable to the parent.",
        "label": "Accumulated Foreign Currency Adjustment Attributable to Parent [Member]",
        "terseLabel": "Foreign Currency"
       }
      }
     },
     "localname": "AccumulatedTranslationAdjustmentMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/AccumulatedOtherComprehensiveLossSummaryOfAccumulatedOtherComprehensiveLossDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AdditionalPaidInCapitalCommonStock": {
     "auth_ref": [
      "r43"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 2.0,
       "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.patternenergy.com/role/ConsolidatedBalanceSheets"
     ],
     "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.patternenergy.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AdjustmentsForNewAccountingPronouncementsAxis": {
     "auth_ref": [
      "r152"
     ],
     "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.patternenergy.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities": {
     "auth_ref": [
      "r134"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 9.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The aggregate amount of adjustments to net income or loss necessary to remove the effects of all items whose cash effects are investing or financing cash flows. The aggregate amount also includes all noncash expenses and income items which reduce or increase net income and are thus added back or deducted when calculating cash provided by or used in operating activities.",
        "label": "Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities",
        "terseLabel": "Other reconciling items"
       }
      }
     },
     "localname": "AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue": {
     "auth_ref": [
      "r278",
      "r279",
      "r281",
      "r282"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement.",
        "label": "APIC, Share-based Payment Arrangement, Increase for Cost Recognition",
        "terseLabel": "Stock-based compensation"
       }
      }
     },
     "localname": "AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "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 loss to net cash provided by operating activities:"
       }
      }
     },
     "localname": "AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AmortizationOfDebtDiscountPremium": {
     "auth_ref": [
      "r109",
      "r134",
      "r390"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/DebtScheduleOfReconciliationOfInterestExpenseDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_InterestExpense",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.",
        "label": "Amortization of Debt Discount (Premium)",
        "verboseLabel": "Amortization of debt discount/premium, net"
       }
      }
     },
     "localname": "AmortizationOfDebtDiscountPremium",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtScheduleOfReconciliationOfInterestExpenseDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount": {
     "auth_ref": [
      "r164"
     ],
     "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": "Antidilutive securities excluded from computation of earnings per share (less than in 2018)"
       }
      }
     },
     "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/EarningsLossPerShareComputationsOfClassBasicAndDilutedEarningsLossPerShareDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis": {
     "auth_ref": [
      "r164"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of antidilutive security.",
        "label": "Antidilutive Securities [Axis]",
        "terseLabel": "Antidilutive Securities [Axis]"
       }
      }
     },
     "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/EarningsLossPerShareComputationsOfClassBasicAndDilutedEarningsLossPerShareDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AntidilutiveSecuritiesNameDomain": {
     "auth_ref": [
      "r164"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Incremental common shares attributable to securities that were not included in diluted earnings per share (EPS) because to do so would increase EPS amounts or decrease loss per share amounts for the period presented.",
        "label": "Antidilutive Securities, Name [Domain]",
        "terseLabel": "Antidilutive Securities, Name [Domain]"
       }
      }
     },
     "localname": "AntidilutiveSecuritiesNameDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/EarningsLossPerShareComputationsOfClassBasicAndDilutedEarningsLossPerShareDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AociAttributableToNoncontrollingInterestMember": {
     "auth_ref": [
      "r79",
      "r83",
      "r318"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Accumulated increase (decrease) in equity from transactions and other events and circumstances from non-owner sources, attributable to the noncontrolling interest. Excludes net income (loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners.",
        "label": "AOCI Attributable to Noncontrolling Interest [Member]",
        "terseLabel": "Accumulated Other Comprehensive Income (Loss)"
       }
      }
     },
     "localname": "AociAttributableToNoncontrollingInterestMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AociIncludingPortionAttributableToNoncontrollingInterestMember": {
     "auth_ref": [
      "r79",
      "r83",
      "r85",
      "r318"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Accumulated change in equity from transactions and other events and circumstances from non-owner sources, including the portion attributable to the noncontrolling interest. Excludes net income (loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners.",
        "label": "AOCI Including Portion Attributable to Noncontrolling Interest [Member]",
        "terseLabel": "AOCI"
       }
      }
     },
     "localname": "AociIncludingPortionAttributableToNoncontrollingInterestMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/AccumulatedOtherComprehensiveLossSummaryOfAccumulatedOtherComprehensiveLossDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AssetImpairmentCharges": {
     "auth_ref": [
      "r134",
      "r218"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 3.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      },
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 4.0,
       "parentTag": "us-gaap_OperatingExpenses",
       "weight": 1.0
      },
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails": {
       "order": 4.0,
       "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.",
        "label": "Asset Impairment Charges",
        "negatedTerseLabel": "Impairment expense",
        "terseLabel": "Impairment expense"
       }
      }
     },
     "localname": "AssetImpairmentCharges",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.patternenergy.com/role/DivestedOperationsNarrativeDetails",
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails",
      "http://www.patternenergy.com/role/SegmentReportingScheduleOfSegmentInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AssetRetirementObligationCurrent": {
     "auth_ref": [
      "r228"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 11.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Current portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.",
        "label": "Asset Retirement Obligation, Current",
        "terseLabel": "Asset retirement obligation, current"
       }
      }
     },
     "localname": "AssetRetirementObligationCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AssetRetirementObligationsNoncurrent": {
     "auth_ref": [
      "r228"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 10.0,
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Noncurrent portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.",
        "label": "Asset Retirement Obligations, Noncurrent",
        "terseLabel": "Asset retirement obligations (Note 7)",
        "verboseLabel": "Asset retirement obligations"
       }
      }
     },
     "localname": "AssetRetirementObligationsNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_Assets": {
     "auth_ref": [
      "r181",
      "r444",
      "r462"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "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.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/SegmentReportingScheduleOfSegmentInformationDetails",
      "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AssetsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Assets [Abstract]",
        "terseLabel": "Assets",
        "verboseLabel": "Assets"
       }
      }
     },
     "localname": "AssetsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AssetsCurrent": {
     "auth_ref": [
      "r23",
      "r25",
      "r69"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 1.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.",
        "label": "Assets, Current",
        "totalLabel": "Total current assets"
       }
      }
     },
     "localname": "AssetsCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AssetsCurrentAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Assets, Current [Abstract]",
        "terseLabel": "Current assets:",
        "verboseLabel": "Current assets:"
       }
      }
     },
     "localname": "AssetsCurrentAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AssetsFairValueDisclosure": {
     "auth_ref": [
      "r366"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/FairValueMeasurementsFinancialAssetsAndLiabilitiesRequiredFairValueMeasurementOnRecurringBasisDetails": {
       "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": "Assets"
       }
      }
     },
     "localname": "AssetsFairValueDisclosure",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueMeasurementsFinancialAssetsAndLiabilitiesRequiredFairValueMeasurementOnRecurringBasisDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AssetsFairValueDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Assets, Fair Value Disclosure [Abstract]",
        "terseLabel": "Assets, Fair Value Disclosure [Abstract]"
       }
      }
     },
     "localname": "AssetsFairValueDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueMeasurementsFinancialAssetsAndLiabilitiesRequiredFairValueMeasurementOnRecurringBasisDetails"
     ],
     "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.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyReceivableAndPayableDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_BalanceSheetLocationDomain": {
     "auth_ref": [
      "r339",
      "r343"
     ],
     "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.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyReceivableAndPayableDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_BankruptcyClaimsAmountOfClaimsFiled": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of bankruptcy claim filed with bankruptcy court.",
        "label": "Bankruptcy Claims, Amount of Claims Filed",
        "terseLabel": "Pre-petition invoice amount"
       }
      }
     },
     "localname": "BankruptcyClaimsAmountOfClaimsFiled",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_BaseRateMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Minimum rate investor will accept.",
        "label": "Base Rate [Member]",
        "terseLabel": "Base Rate"
       }
      }
     },
     "localname": "BaseRateMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_BasisOfAccountingPolicyPolicyTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for basis of accounting, or basis of presentation, used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS).",
        "label": "Basis of Accounting, Policy [Policy Text Block]",
        "terseLabel": "Unaudited Interim Financial Information"
       }
      }
     },
     "localname": "BasisOfAccountingPolicyPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_BridgeLoanMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Financing which is expected to be replaced by a medium to long-term loan. The loan \"bridges\" the gap in time when otherwise no financing would be in place.",
        "label": "Bridge Loan [Member]",
        "terseLabel": "Bridge Loan"
       }
      }
     },
     "localname": "BridgeLoanMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "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.patternenergy.com/role/AcquisitionsNarrativeDetails",
      "http://www.patternenergy.com/role/AcquisitionsScheduleOfProformaDataDetails",
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails",
      "http://www.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails",
      "http://www.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyPurchaseAgreementsDetails",
      "http://www.patternenergy.com/role/StockholdersEquityAdditionalInformationDetails",
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_BusinessAcquisitionAxis": {
     "auth_ref": [
      "r290",
      "r291"
     ],
     "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.patternenergy.com/role/AcquisitionsNarrativeDetails",
      "http://www.patternenergy.com/role/AcquisitionsScheduleOfProformaDataDetails",
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails",
      "http://www.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails",
      "http://www.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyPurchaseAgreementsDetails",
      "http://www.patternenergy.com/role/StockholdersEquityAdditionalInformationDetails",
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_BusinessAcquisitionLineItems": {
     "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": "Business Acquisition [Line Items]",
        "terseLabel": "Business Acquisition [Line Items]"
       }
      }
     },
     "localname": "BusinessAcquisitionLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsNarrativeDetails",
      "http://www.patternenergy.com/role/AcquisitionsScheduleOfProformaDataDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_BusinessAcquisitionProFormaInformationAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Business Acquisition, Pro Forma Information [Abstract]",
        "terseLabel": "Business Acquisition, Pro Forma Information [Abstract]"
       }
      }
     },
     "localname": "BusinessAcquisitionProFormaInformationAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsScheduleOfProformaDataDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_BusinessAcquisitionProFormaInformationTextBlock": {
     "auth_ref": [
      "r288",
      "r289"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of pro forma results of operations for a material business acquisition or series of individually immaterial business acquisitions that are material in the aggregate.",
        "label": "Business Acquisition, Pro Forma Information [Table Text Block]",
        "terseLabel": "Business Acquisition, Pro Forma Information"
       }
      }
     },
     "localname": "BusinessAcquisitionProFormaInformationTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_BusinessAcquisitionSharePrice": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.",
        "label": "Business Acquisition, Share Price",
        "terseLabel": "Price per share (in dollars per share)"
       }
      }
     },
     "localname": "BusinessAcquisitionSharePrice",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss": {
     "auth_ref": [
      "r288",
      "r289"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/AcquisitionsScheduleOfProformaDataDetails": {
       "order": 1.0,
       "parentTag": "pegi_BusinessAcquisitionProFormaNetIncomeLossPortionAttributabletoParent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.",
        "label": "Business Acquisition, Pro Forma Net Income (Loss)",
        "totalLabel": "Pro forma net loss"
       }
      }
     },
     "localname": "BusinessAcquisitionsProFormaNetIncomeLoss",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsScheduleOfProformaDataDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_BusinessAcquisitionsProFormaRevenue": {
     "auth_ref": [
      "r288",
      "r289"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/AcquisitionsScheduleOfProformaDataDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.",
        "label": "Business Acquisition, Pro Forma Revenue",
        "terseLabel": "Pro forma total revenue"
       }
      }
     },
     "localname": "BusinessAcquisitionsProFormaRevenue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsScheduleOfProformaDataDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_BusinessCombinationAcquisitionRelatedCosts": {
     "auth_ref": [
      "r287"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.",
        "label": "Business Combination, Acquisition Related Costs",
        "terseLabel": "Transaction costs"
       }
      }
     },
     "localname": "BusinessCombinationAcquisitionRelatedCosts",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsNarrativeDetails",
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_BusinessCombinationConsiderationTransferred1": {
     "auth_ref": [
      "r296",
      "r297",
      "r300"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.",
        "label": "Business Combination, Consideration Transferred",
        "verboseLabel": "Consideration"
       }
      }
     },
     "localname": "BusinessCombinationConsiderationTransferred1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1": {
     "auth_ref": [
      "r133",
      "r303"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 18.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.",
        "label": "Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability",
        "terseLabel": "Contingent liabilities",
        "verboseLabel": "Development expenses"
       }
      }
     },
     "localname": "BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_BusinessCombinationContingentConsiderationLiability": {
     "auth_ref": [
      "r295",
      "r298",
      "r302"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/FairValueMeasurementsFinancialAssetsAndLiabilitiesRequiredFairValueMeasurementOnRecurringBasisDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_LiabilitiesFairValueDisclosure",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of liability recognized arising from contingent consideration in a business combination.",
        "label": "Business Combination, Contingent Consideration, Liability",
        "terseLabel": "Contingent Consideration",
        "verboseLabel": "Contingent consideration"
       }
      }
     },
     "localname": "BusinessCombinationContingentConsiderationLiability",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueMeasurementsFinancialAssetsAndLiabilitiesRequiredFairValueMeasurementOnRecurringBasisDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails",
      "http://www.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyPurchaseAgreementsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent": {
     "auth_ref": [
      "r295",
      "r299"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 10.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of liability recognized arising from contingent consideration in a business combination, expected to be settled within one year or the normal operating cycle, if longer.",
        "label": "Business Combination, Contingent Consideration, Liability, Current",
        "terseLabel": "Contingent liabilities, current",
        "verboseLabel": "Contingent consideration"
       }
      }
     },
     "localname": "BusinessCombinationContingentConsiderationLiabilityCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsNarrativeDetails",
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_BusinessCombinationContingentConsiderationLiabilityMeasurementInput": {
     "auth_ref": [
      "r371"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Value of input used to measure contingent consideration liability from business combination.",
        "label": "Business Combination, Contingent Consideration, Liability, Measurement Input",
        "terseLabel": "Contingent consideration, measurement input"
       }
      }
     },
     "localname": "BusinessCombinationContingentConsiderationLiabilityMeasurementInput",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails",
      "http://www.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails"
     ],
     "xbrltype": "decimalItemType"
    },
    "us-gaap_BusinessCombinationContingentConsiderationLiabilityNoncurrent": {
     "auth_ref": [
      "r295",
      "r299"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 6.0,
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of liability recognized arising from contingent consideration in a business combination, expected to be settled beyond one year or the normal operating cycle, if longer.",
        "label": "Business Combination, Contingent Consideration, Liability, Noncurrent",
        "terseLabel": "Contingent liabilities (Note 7)"
       }
      }
     },
     "localname": "BusinessCombinationContingentConsiderationLiabilityNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_BusinessCombinationDisclosureTextBlock": {
     "auth_ref": [
      "r304"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).",
        "label": "Business Combination Disclosure [Text Block]",
        "terseLabel": "Acquisitions"
       }
      }
     },
     "localname": "BusinessCombinationDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/Acquisitions"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedContingentLiability": {
     "auth_ref": [
      "r292",
      "r293"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The amount of liability arising from an inherited contingency (as defined) which has been recognized as of the acquisition date.",
        "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Contingent Liability",
        "terseLabel": "Contingent liability"
       }
      }
     },
     "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedContingentLiability",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_BusinessCombinationsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Business Combinations [Abstract]"
       }
      }
     },
     "localname": "BusinessCombinationsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_CapitalUnitsMember": {
     "auth_ref": [
      "r480"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Type of ownership interest in a corporation. Class of capital units or capital shares.",
        "label": "Capital Units [Member]",
        "verboseLabel": "Capital"
       }
      }
     },
     "localname": "CapitalUnitsMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CashAndCashEquivalentsAtCarryingValue": {
     "auth_ref": [
      "r20",
      "r49",
      "r136"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 1.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      },
      "http://www.patternenergy.com/role/SummaryOfSignificantAccountingPoliciesReconciliationOfCashCashEquivalentAndRestrictedCashAsPresentedInScfDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.",
        "label": "Cash and Cash Equivalents, at Carrying Value",
        "netLabel": "Cash and cash equivalents",
        "terseLabel": "Cash and cash equivalents (Note 7)",
        "verboseLabel": "Cash and cash equivalents"
       }
      }
     },
     "localname": "CashAndCashEquivalentsAtCarryingValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/SummaryOfSignificantAccountingPoliciesReconciliationOfCashCashEquivalentAndRestrictedCashAsPresentedInScfDetails",
      "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents": {
     "auth_ref": [
      "r129",
      "r136",
      "r139"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/SummaryOfSignificantAccountingPoliciesReconciliationOfCashCashEquivalentAndRestrictedCashAsPresentedInScfDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "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, cash equivalents and restricted cash at end of period",
        "periodStartLabel": "Cash, cash equivalents and restricted cash at beginning of period",
        "totalLabel": "Cash, cash equivalents and restricted cash shown in the consolidated statements of cash flows"
       }
      }
     },
     "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.patternenergy.com/role/SummaryOfSignificantAccountingPoliciesReconciliationOfCashCashEquivalentAndRestrictedCashAsPresentedInScfDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect": {
     "auth_ref": [
      "r129",
      "r384"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "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 change in cash, cash equivalents and restricted cash"
       }
      }
     },
     "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths": {
     "auth_ref": [
      "r364"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.",
        "label": "Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months",
        "negatedLabel": "AOCL to be reclassified within 12 months"
       }
      }
     },
     "localname": "CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DerivativeInstrumentsAdditionalInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CashFlowHedgingMember": {
     "auth_ref": [
      "r336"
     ],
     "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 Flow Hedging"
       }
      }
     },
     "localname": "CashFlowHedgingMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DerivativeInstrumentsSummaryOfEffectsOfCashFlowHedgesOnConsolidatedStatementsOfOperationsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]",
        "terseLabel": "Schedule of non-cash activities"
       }
      }
     },
     "localname": "CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "stringItemType"
    },
    "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.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ClassificationOfVariableInterestEntityDomain": {
     "auth_ref": [
      "r320",
      "r321",
      "r322",
      "r323"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Categorization of Variable Interest Entities (VIE) for consolidation and (or) disclosure purposes, whether individually or in aggregate, by: (1) VIEs consolidated because the entity is the primary beneficiary, (2) VIEs not consolidated because the entity is not the primary beneficiary, and (3) VIEs or potential VIEs that are not consolidated because necessary information is not available. In general, a VIE is a corporation, partnership, trust, or any other legal structure used for business purposes that either (a) does not have equity investors with voting rights or (b) has equity investors that do not provide sufficient financial resources for the entity to support its activities. A VIE often holds financial assets, including loans or receivables, real estate or other property. A VIE may be essentially passive or it may engage in research and development or other activities on behalf of another company.",
        "label": "Variable Interest Entity, Classification [Domain]",
        "terseLabel": "Variable Interest Entity, Classification [Domain]"
       }
      }
     },
     "localname": "ClassificationOfVariableInterestEntityDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/VariableInterestEntitiesAdditionalInformationDetails",
      "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CollectibilityOfReceivablesMember": {
     "auth_ref": [
      "r235"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The assets of an enterprise may include receivables that arose from credit sales, loans, or other transactions. The conditions under which receivables exist usually involve some degree of uncertainty about their collectability, in which case a contingency exist.",
        "label": "Collectibility of Receivables [Member]",
        "terseLabel": "Collectibility of Receivables"
       }
      }
     },
     "localname": "CollectibilityOfReceivablesMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CommitmentsAndContingencies": {
     "auth_ref": [
      "r64",
      "r232",
      "r452",
      "r470"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 2.0,
       "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 (Note 16)"
       }
      }
     },
     "localname": "CommitmentsAndContingencies",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets"
     ],
     "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": [
      "r231",
      "r240"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for commitments and contingencies.",
        "label": "Commitments and Contingencies Disclosure [Text Block]",
        "terseLabel": "Commitments and Contingencies"
       }
      }
     },
     "localname": "CommitmentsAndContingenciesDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/CommitmentsAndContingencies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_CommonClassAMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Classification of common stock representing ownership interest in a corporation.",
        "label": "Common Class A [Member]",
        "terseLabel": "Common Class A"
       }
      }
     },
     "localname": "CommonClassAMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CommonStockDividendsPerShareDeclared": {
     "auth_ref": [
      "r258"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Aggregate dividends declared during the period for each share of common stock outstanding.",
        "label": "Common Stock, Dividends, Per Share, Declared",
        "terseLabel": "Dividends declared per Class A common share (in dollars per share)",
        "verboseLabel": "Dividends declared (in dollars per share)"
       }
      }
     },
     "localname": "CommonStockDividendsPerShareDeclared",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementOfStockholdersEquityParenthetical",
      "http://www.patternenergy.com/role/EarningsLossPerShareComputationsOfClassBasicAndDilutedEarningsLossPerShareDetails"
     ],
     "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"
       }
      }
     },
     "localname": "CommonStockMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CommonStockParOrStatedValuePerShare": {
     "auth_ref": [
      "r41"
     ],
     "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": "Class A common stock, par value (in dollars per share)"
       }
      }
     },
     "localname": "CommonStockParOrStatedValuePerShare",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheetsParenthetical",
      "http://www.patternenergy.com/role/StockholdersEquityAdditionalInformationDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_CommonStockSharesAuthorized": {
     "auth_ref": [
      "r41"
     ],
     "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": "Class A common stock, shares authorized (in Shares)"
       }
      }
     },
     "localname": "CommonStockSharesAuthorized",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CommonStockSharesIssued": {
     "auth_ref": [
      "r41"
     ],
     "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",
        "periodEndLabel": "Ending balance (in shares)",
        "periodStartLabel": "Beginning balance (in shares)"
       }
      }
     },
     "localname": "CommonStockSharesIssued",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CommonStockSharesOutstanding": {
     "auth_ref": [
      "r41",
      "r252"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.",
        "label": "Common Stock, Shares, Outstanding",
        "terseLabel": "Class A common stock, shares outstanding (in Shares)"
       }
      }
     },
     "localname": "CommonStockSharesOutstanding",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CommonStockValue": {
     "auth_ref": [
      "r41"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "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 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": "Class A common stock, $0.01 par value per share: 500,000,000 shares authorized; 98,240,118 and 98,051,629 shares outstanding as of September 30, 2019 and December 31, 2018, respectively"
       }
      }
     },
     "localname": "CommonStockValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ComprehensiveIncomeNetOfTax": {
     "auth_ref": [
      "r88",
      "r90",
      "r91"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss": {
       "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": "Comprehensive income (loss) attributable to Pattern Energy"
       }
      }
     },
     "localname": "ComprehensiveIncomeNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest": {
     "auth_ref": [
      "r88",
      "r90",
      "r308",
      "r309",
      "r327"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss": {
       "order": 2.0,
       "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners.",
        "label": "Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest",
        "terseLabel": "Comprehensive loss attributable to noncontrolling interests, net of tax impact of less than $1 for all periods presented"
       }
      }
     },
     "localname": "ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest": {
     "auth_ref": [
      "r88",
      "r90",
      "r307",
      "r327"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss": {
       "order": 1.0,
       "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax",
       "weight": 1.0
      }
     },
     "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. Excludes changes in equity resulting from investments by owners and distributions to owners.",
        "label": "Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest",
        "totalLabel": "Comprehensive loss"
       }
      }
     },
     "localname": "ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ComprehensiveIncomeNoteTextBlock": {
     "auth_ref": [
      "r111"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income.",
        "label": "Comprehensive Income (Loss) Note [Text Block]",
        "terseLabel": "Accumulated Other Comprehensive Loss"
       }
      }
     },
     "localname": "ComprehensiveIncomeNoteTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/AccumulatedOtherComprehensiveLoss"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ConsolidationPolicyTextBlock": {
     "auth_ref": [
      "r140",
      "r312",
      "r328",
      "r329"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy regarding (1) the principles it follows in consolidating or combining the separate financial statements, including the principles followed in determining the inclusion or exclusion of subsidiaries or other entities in the consolidated or combined financial statements and (2) its treatment of interests (for example, common stock, a partnership interest or other means of exerting influence) in other entities, for example consolidation or use of the equity or cost methods of accounting.  The accounting policy may also address the accounting treatment for intercompany accounts and transactions, noncontrolling interest, and the income statement treatment in consolidation for issuances of stock by a subsidiary.",
        "label": "Consolidation, Policy [Policy Text Block]",
        "terseLabel": "Basis of Presentation and Principles of Consolidation"
       }
      }
     },
     "localname": "ConsolidationPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ConstructionInProgressGross": {
     "auth_ref": [
      "r220"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 12.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.",
        "label": "Construction in Progress, Gross",
        "terseLabel": "Construction in progress"
       }
      }
     },
     "localname": "ConstructionInProgressGross",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ConstructionPayableCurrent": {
     "auth_ref": [
      "r54"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 3.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Carrying value as of the balance sheet date of obligations incurred and payable for the acquisition of merchandise, materials, supplies and services pertaining to construction projects such as a housing development or factory expansion not classified as trade payables. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).",
        "label": "Construction Payable, Current",
        "terseLabel": "Accrued construction costs (Note 7)",
        "verboseLabel": "Accrued construction costs"
       }
      }
     },
     "localname": "ConstructionPayableCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ContingentConsiderationByTypeAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of contingent consideration.",
        "label": "Contingent Consideration by Type [Axis]",
        "terseLabel": "Contingent Consideration by Type [Axis]"
       }
      }
     },
     "localname": "ContingentConsiderationByTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ContingentConsiderationTypeDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Description of contingent payment arrangement.",
        "label": "Contingent Consideration Type [Domain]",
        "terseLabel": "Contingent Consideration Type [Domain]"
       }
      }
     },
     "localname": "ContingentConsiderationTypeDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ContractWithCustomerLiabilityNoncurrent": {
     "auth_ref": [
      "r263",
      "r264",
      "r269"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 9.0,
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as noncurrent.",
        "label": "Contract with Customer, Liability, Noncurrent",
        "terseLabel": "Contract liability",
        "verboseLabel": "Deferred revenue"
       }
      }
     },
     "localname": "ContractWithCustomerLiabilityNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ContractWithCustomerLiabilityRevenueRecognized": {
     "auth_ref": [
      "r270"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.",
        "label": "Contract with Customer, Liability, Revenue Recognized",
        "terseLabel": "Revenue recognized on contract with customer, liability (less than for 3 months ended)"
       }
      }
     },
     "localname": "ContractWithCustomerLiabilityRevenueRecognized",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/RevenueContractBalancesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ConvertibleDebt": {
     "auth_ref": [
      "r37",
      "r447",
      "r464"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/DebtConvertibleSeniorNoteDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company.",
        "label": "Convertible Debt",
        "totalLabel": "Carrying value of convertible senior notes"
       }
      }
     },
     "localname": "ConvertibleDebt",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtConvertibleSeniorNoteDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ConvertibleDebtMember": {
     "auth_ref": [
      "r246"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Borrowing which can be exchanged for a specified number of another security at the option of the issuer or the holder, for example, but not limited to, the entity's common stock.",
        "label": "Convertible Debt [Member]",
        "terseLabel": "Convertible debt"
       }
      }
     },
     "localname": "ConvertibleDebtMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails",
      "http://www.patternenergy.com/role/DebtConvertibleSeniorNoteDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ConvertibleDebtSecuritiesMember": {
     "auth_ref": [
      "r274"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Debt securities that can be exchanged for equity of the debt issuer at the option of the issuer or the holder.",
        "label": "Convertible Debt Securities [Member]",
        "terseLabel": "Convertible senior notes"
       }
      }
     },
     "localname": "ConvertibleDebtSecuritiesMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/EarningsLossPerShareComputationsOfClassBasicAndDilutedEarningsLossPerShareDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ConvertibleDebtTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of borrowings which can be exchanged for a specified number of another security at the option of the issuer or the holder. Disclosures include, but are not limited to, principal amount, amortized premium or discount, and amount of liability and equity components.",
        "label": "Convertible Debt [Table Text Block]",
        "terseLabel": "Schedule of Convertible Debt"
       }
      }
     },
     "localname": "ConvertibleDebtTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_CostDirectMaterial": {
     "auth_ref": [
      "r100"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 1.0,
       "parentTag": "us-gaap_CostOfRevenue",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Cost of material used for good produced and service rendered.",
        "label": "Cost, Direct Material",
        "terseLabel": "Transmission costs"
       }
      }
     },
     "localname": "CostDirectMaterial",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CostOfGoodsAndServicesSoldDepreciationAndAmortization": {
     "auth_ref": [
      "r100"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 2.0,
       "parentTag": "us-gaap_CostOfRevenue",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of expense for allocation of cost of tangible and intangible assets over their useful lives directly used in production of good and rendering of service.",
        "label": "Cost, Depreciation and Amortization",
        "terseLabel": "Depreciation, amortization and accretion"
       }
      }
     },
     "localname": "CostOfGoodsAndServicesSoldDepreciationAndAmortization",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.patternenergy.com/role/SegmentReportingScheduleOfSegmentInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CostOfRevenue": {
     "auth_ref": [
      "r105"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 1.0,
       "parentTag": "us-gaap_GrossProfit",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The aggregate cost of goods produced and sold and services rendered during the reporting period.",
        "label": "Cost of Revenue",
        "totalLabel": "Total cost of revenue"
       }
      }
     },
     "localname": "CostOfRevenue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CostOfRevenueAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Cost of Revenue [Abstract]",
        "terseLabel": "Cost of revenue:"
       }
      }
     },
     "localname": "CostOfRevenueAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_CreditFacilityAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of credit facility. Credit facilities provide capital to borrowers without the need to structure a loan for each borrowing.",
        "label": "Credit Facility [Axis]",
        "terseLabel": "Credit Facility [Axis]"
       }
      }
     },
     "localname": "CreditFacilityAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_CreditFacilityDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Type of credit facility. Credit facilities provide capital to borrowers without the need to structure a loan for each borrowing.",
        "label": "Credit Facility [Domain]",
        "terseLabel": "Credit Facility [Domain]"
       }
      }
     },
     "localname": "CreditFacilityDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_DebtDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Debt Disclosure [Abstract]"
       }
      }
     },
     "localname": "DebtDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_DebtDisclosureTextBlock": {
     "auth_ref": [
      "r251"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.",
        "label": "Debt Disclosure [Text Block]",
        "terseLabel": "Debt"
       }
      }
     },
     "localname": "DebtDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/Debt"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_DebtInstrumentAxis": {
     "auth_ref": [
      "r35",
      "r36",
      "r37",
      "r445",
      "r447",
      "r461"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of debt instrument, including, but not limited to, draws against credit facilities.",
        "label": "Debt Instrument [Axis]",
        "terseLabel": "Debt Instrument [Axis]"
       }
      }
     },
     "localname": "DebtInstrumentAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails",
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails"
     ],
     "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 spread on variable rate"
       }
      }
     },
     "localname": "DebtInstrumentBasisSpreadOnVariableRate1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_DebtInstrumentCarryingAmount": {
     "auth_ref": [
      "r37",
      "r248",
      "r447",
      "r461"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_LongTermDebt",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.",
        "label": "Long-term Debt, Gross",
        "terseLabel": "Long-term debt, gross"
       }
      }
     },
     "localname": "DebtInstrumentCarryingAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails",
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent": {
     "auth_ref": [
      "r247"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The carrying amount of the equity component of convertible debt which may be settled in cash upon conversion.",
        "label": "Debt Instrument, Convertible, Carrying Amount of Equity Component",
        "terseLabel": "Carrying value of the equity component"
       }
      }
     },
     "localname": "DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtConvertibleSeniorNoteDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtInstrumentFaceAmount": {
     "auth_ref": [
      "r391",
      "r394"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/DebtConvertibleSeniorNoteDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_ConvertibleDebt",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Face (par) amount of debt instrument at time of issuance.",
        "label": "Debt Instrument, Face Amount",
        "terseLabel": "Principal"
       }
      }
     },
     "localname": "DebtInstrumentFaceAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails",
      "http://www.patternenergy.com/role/DebtConvertibleSeniorNoteDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtInstrumentInterestRateEffectivePercentage": {
     "auth_ref": [
      "r61",
      "r250",
      "r391"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.",
        "label": "Debt Instrument, Interest Rate, Effective Percentage",
        "terseLabel": "Effective Interest Rate"
       }
      }
     },
     "localname": "DebtInstrumentInterestRateEffectivePercentage",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_DebtInstrumentInterestRateStatedPercentage": {
     "auth_ref": [
      "r61"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Contractual interest rate for funds borrowed, under the debt agreement.",
        "label": "Debt Instrument, Interest Rate, Stated Percentage",
        "terseLabel": "Contractual Interest Rate",
        "verboseLabel": "Contractual interest rate"
       }
      }
     },
     "localname": "DebtInstrumentInterestRateStatedPercentage",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails",
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_DebtInstrumentLineItems": {
     "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": "Debt Instrument [Line Items]",
        "terseLabel": "Debt Instrument [Line Items]"
       }
      }
     },
     "localname": "DebtInstrumentLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtConvertibleSeniorNoteDetails",
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DebtInstrumentNameDomain": {
     "auth_ref": [
      "r62"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The name for the particular debt instrument or borrowing that distinguishes it from other debt instruments or borrowings, including draws against credit facilities.",
        "label": "Debt Instrument, Name [Domain]",
        "terseLabel": "Debt Instrument, Name [Domain]"
       }
      }
     },
     "localname": "DebtInstrumentNameDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails",
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_DebtInstrumentTable": {
     "auth_ref": [
      "r62",
      "r147",
      "r253",
      "r255",
      "r256",
      "r257",
      "r390",
      "r391",
      "r394",
      "r459"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A table or schedule providing information pertaining to long-term debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. 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": "Schedule of Long-term Debt Instruments [Table]",
        "terseLabel": "Schedule of Long-term Debt Instruments [Table]"
       }
      }
     },
     "localname": "DebtInstrumentTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtConvertibleSeniorNoteDetails",
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DebtInstrumentTerm": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.",
        "label": "Debt Instrument, Term",
        "terseLabel": "Debt term"
       }
      }
     },
     "localname": "DebtInstrumentTerm",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_DebtInstrumentUnamortizedDiscount": {
     "auth_ref": [
      "r390",
      "r394"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/DebtConvertibleSeniorNoteDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_ConvertibleDebt",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after accumulated amortization, of debt discount.",
        "label": "Debt Instrument, Unamortized Discount",
        "negatedLabel": "Unamortized debt discount"
       }
      }
     },
     "localname": "DebtInstrumentUnamortizedDiscount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtConvertibleSeniorNoteDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet": {
     "auth_ref": [
      "r390",
      "r391",
      "r392",
      "r393",
      "r394"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_LongTermDebt",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after accumulated amortization, of debt discount (premium).",
        "label": "Debt Instrument, Unamortized Discount (Premium), Net",
        "negatedTerseLabel": "Unamortized discount, net"
       }
      }
     },
     "localname": "DebtInstrumentUnamortizedDiscountPremiumNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredFinanceCostsCurrentNet": {
     "auth_ref": [
      "r68",
      "r392"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 8.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after accumulated amortization, of debt issuance costs classified as current. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.",
        "label": "Debt Issuance Costs, Current, Net",
        "verboseLabel": "Deferred financing costs, current, net of accumulated amortization of $4 and $3 as of September 30, 2019 and December 31, 2018, respectively"
       }
      }
     },
     "localname": "DeferredFinanceCostsCurrentNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredFinanceCostsNet": {
     "auth_ref": [
      "r53",
      "r392"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_LongTermDebt",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.",
        "label": "Debt Issuance Costs, Net",
        "negatedTerseLabel": "Unamortized financing costs"
       }
      }
     },
     "localname": "DeferredFinanceCostsNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredFinanceCostsNoncurrentNet": {
     "auth_ref": [
      "r53",
      "r392"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 6.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after accumulated amortization, of debt issuance costs classified as noncurrent. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.",
        "label": "Debt Issuance Costs, Noncurrent, Net",
        "terseLabel": "Deferred financing costs, net",
        "verboseLabel": "Deferred financing costs"
       }
      }
     },
     "localname": "DeferredFinanceCostsNoncurrentNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredIncomeTaxAssetsNet": {
     "auth_ref": [
      "r284"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 7.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting.",
        "label": "Deferred Income Tax Assets, Net",
        "terseLabel": "Net deferred tax assets"
       }
      }
     },
     "localname": "DeferredIncomeTaxAssetsNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredIncomeTaxLiabilitiesNet": {
     "auth_ref": [
      "r283",
      "r284"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 4.0,
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences with jurisdictional netting.",
        "label": "Deferred Income Tax Liabilities, Net",
        "terseLabel": "Net deferred tax liabilities"
       }
      }
     },
     "localname": "DeferredIncomeTaxLiabilitiesNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredIncomeTaxesAndTaxCredits": {
     "auth_ref": [
      "r135"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 6.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of deferred income tax expense (benefit) and income tax credits.",
        "label": "Deferred Income Taxes and Tax Credits",
        "terseLabel": "Deferred taxes"
       }
      }
     },
     "localname": "DeferredIncomeTaxesAndTaxCredits",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_Depreciation": {
     "auth_ref": [
      "r134",
      "r219"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.",
        "label": "Depreciation",
        "verboseLabel": "Depreciation expense related to property, plant and equipment"
       }
      }
     },
     "localname": "Depreciation",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/PropertyPlantAndEquipmentNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DepreciationAmortizationAndAccretionNet": {
     "auth_ref": [
      "r134"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 2.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The aggregate net amount of depreciation, amortization, and accretion recognized during an accounting period. As a noncash item, the net amount is added back to net income when calculating cash provided by or used in operations using the indirect method.",
        "label": "Depreciation, Amortization and Accretion, Net",
        "terseLabel": "Depreciation, amortization and accretion"
       }
      }
     },
     "localname": "DepreciationAmortizationAndAccretionNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeAssetMeasurementInput": {
     "auth_ref": [
      "r371"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Value of input used to measure derivative asset.",
        "label": "Derivative Asset, Measurement Input",
        "terseLabel": "Energy derivative, measurement input"
       }
      }
     },
     "localname": "DerivativeAssetMeasurementInput",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails"
     ],
     "xbrltype": "decimalItemType"
    },
    "us-gaap_DerivativeAssets": {
     "auth_ref": [
      "r70",
      "r72",
      "r380"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/FairValueMeasurementsFinancialAssetsAndLiabilitiesRequiredFairValueMeasurementOnRecurringBasisDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_AssetsFairValueDisclosure",
       "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",
        "terseLabel": "Derivative asset (less than $1 million for congestion revenue rights in September 30, 2019)"
       }
      }
     },
     "localname": "DerivativeAssets",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DerivativeInstrumentsScheduleOfDerivativeInstrumentsClassifiedAsAssetsLiabilitiesDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsFinancialAssetsAndLiabilitiesRequiredFairValueMeasurementOnRecurringBasisDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeAssetsCurrent": {
     "auth_ref": [
      "r70"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 5.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "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, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.",
        "label": "Derivative Asset, Current",
        "terseLabel": "Derivative assets, current"
       }
      }
     },
     "localname": "DerivativeAssetsCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/DerivativeInstrumentsScheduleOfDerivativeInstrumentsClassifiedAsAssetsLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeAssetsNoncurrent": {
     "auth_ref": [
      "r70"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 5.0,
       "parentTag": "us-gaap_Assets",
       "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, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.",
        "label": "Derivative Asset, Noncurrent",
        "terseLabel": "Derivative assets",
        "verboseLabel": "Derivative assets, noncurrent"
       }
      }
     },
     "localname": "DerivativeAssetsNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/DerivativeInstrumentsScheduleOfDerivativeInstrumentsClassifiedAsAssetsLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeCollateralObligationToReturnCash": {
     "auth_ref": [
      "r71",
      "r73",
      "r356"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 2.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "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",
        "terseLabel": "Counterparty collateral liability"
       }
      }
     },
     "localname": "DerivativeCollateralObligationToReturnCash",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets"
     ],
     "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.patternenergy.com/role/DerivativeInstrumentsAdditionalInformationDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsNotionalAmountsOfOutstandingDerivativeInstrumentsDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsScheduleOfDerivativeInstrumentsClassifiedAsAssetsLiabilitiesDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsSummaryOfEffectsOfUndesignatedDerivativesOnConsolidatedStatementsOfOperationsDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails",
      "http://www.patternenergy.com/role/ReconciliationOfDerivativeAssetsMeasuredAtFairValueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_DerivativeInstrumentRiskAxis": {
     "auth_ref": [
      "r340",
      "r342",
      "r349",
      "r353"
     ],
     "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.patternenergy.com/role/DerivativeInstrumentsAdditionalInformationDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsNotionalAmountsOfOutstandingDerivativeInstrumentsDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsScheduleOfDerivativeInstrumentsClassifiedAsAssetsLiabilitiesDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsSummaryOfEffectsOfUndesignatedDerivativesOnConsolidatedStatementsOfOperationsDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails",
      "http://www.patternenergy.com/role/ReconciliationOfDerivativeAssetsMeasuredAtFairValueDetails"
     ],
     "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": [
      "r365"
     ],
     "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 Instruments"
       }
      }
     },
     "localname": "DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DerivativeInstruments"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis": {
     "auth_ref": [
      "r337",
      "r340",
      "r349"
     ],
     "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.patternenergy.com/role/DerivativeInstrumentsSummaryOfEffectsOfCashFlowHedgesOnConsolidatedStatementsOfOperationsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable": {
     "auth_ref": [
      "r337",
      "r340",
      "r349",
      "r353",
      "r354",
      "r358",
      "r362"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of information about the location and amount of derivative instruments and nonderivative instruments designated as hedging instruments reported before netting adjustments, and the amount of gain (loss) on derivative instruments and nonderivative instruments designated and qualified as hedging instruments.",
        "label": "Derivative Instruments, Gain (Loss) [Table]",
        "terseLabel": "Derivative Instruments, Gain (Loss) [Table]"
       }
      }
     },
     "localname": "DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DerivativeInstrumentsSummaryOfEffectsOfCashFlowHedgesOnConsolidatedStatementsOfOperationsDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsSummaryOfEffectsOfUndesignatedDerivativesOnConsolidatedStatementsOfOperationsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DerivativeInstrumentsGainLossLineItems": {
     "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, Gain (Loss) [Line Items]",
        "terseLabel": "Derivative Instruments, Gain (Loss) [Line Items]"
       }
      }
     },
     "localname": "DerivativeInstrumentsGainLossLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DerivativeInstrumentsSummaryOfEffectsOfCashFlowHedgesOnConsolidatedStatementsOfOperationsDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsSummaryOfEffectsOfUndesignatedDerivativesOnConsolidatedStatementsOfOperationsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet": {
     "auth_ref": [
      "r346",
      "r352"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.",
        "label": "Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net",
        "terseLabel": "Derivative instruments, gain (loss) reclassified from accumulated OCI into income, effective portion, net"
       }
      }
     },
     "localname": "DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DerivativeInstrumentsSummaryOfEffectsOfCashFlowHedgesOnConsolidatedStatementsOfOperationsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet": {
     "auth_ref": [
      "r347",
      "r361"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments representing (a) the amount of the hedge ineffectiveness and (b) the amount, if any, excluded from the assessment of hedge effectiveness.",
        "label": "Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net",
        "terseLabel": "Gain recognized in interest expense"
       }
      }
     },
     "localname": "DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DerivativeInstrumentsSummaryOfEffectsOfCashFlowHedgesOnConsolidatedStatementsOfOperationsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeLiabilities": {
     "auth_ref": [
      "r70",
      "r72",
      "r380"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/FairValueMeasurementsFinancialAssetsAndLiabilitiesRequiredFairValueMeasurementOnRecurringBasisDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_LiabilitiesFairValueDisclosure",
       "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",
        "terseLabel": "Derivative liability (less than $1 million for foreign currency forward contracts in September 30,2019)"
       }
      }
     },
     "localname": "DerivativeLiabilities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueMeasurementsFinancialAssetsAndLiabilitiesRequiredFairValueMeasurementOnRecurringBasisDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeLiabilitiesCurrent": {
     "auth_ref": [
      "r70"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 6.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "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, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.",
        "label": "Derivative Liability, Current",
        "terseLabel": "Derivative liabilities, current"
       }
      }
     },
     "localname": "DerivativeLiabilitiesCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/DerivativeInstrumentsScheduleOfDerivativeInstrumentsClassifiedAsAssetsLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeLiabilitiesNoncurrent": {
     "auth_ref": [
      "r70"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 3.0,
       "parentTag": "us-gaap_Liabilities",
       "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, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.",
        "label": "Derivative Liability, Noncurrent",
        "terseLabel": "Derivative liabilities",
        "verboseLabel": "Derivative liabilities, noncurrent"
       }
      }
     },
     "localname": "DerivativeLiabilitiesNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/DerivativeInstrumentsScheduleOfDerivativeInstrumentsClassifiedAsAssetsLiabilitiesDetails"
     ],
     "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.patternenergy.com/role/DerivativeInstrumentsAdditionalInformationDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsScheduleOfDerivativeInstrumentsClassifiedAsAssetsLiabilitiesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DerivativeNonmonetaryNotionalAmount": {
     "auth_ref": [
      "r333",
      "r335"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Nominal number of units used to calculate payment on derivative.",
        "label": "Derivative, Nonmonetary Notional Amount",
        "terseLabel": "Nonmonetary notional amount"
       }
      }
     },
     "localname": "DerivativeNonmonetaryNotionalAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DerivativeInstrumentsAdditionalInformationDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsNotionalAmountsOfOutstandingDerivativeInstrumentsDetails"
     ],
     "xbrltype": "decimalItemType"
    },
    "us-gaap_DerivativeNotionalAmount": {
     "auth_ref": [
      "r333",
      "r335"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Nominal or face amount used to calculate payment on derivative.",
        "label": "Derivative, Notional Amount",
        "terseLabel": "Notional amount"
       }
      }
     },
     "localname": "DerivativeNotionalAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DerivativeInstrumentsNotionalAmountsOfOutstandingDerivativeInstrumentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeRemainingMaturity1": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Period remaining until the derivative contract matures, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.",
        "label": "Derivative, Remaining Maturity",
        "terseLabel": "Remaining maturities"
       }
      }
     },
     "localname": "DerivativeRemainingMaturity1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DerivativeInstrumentsAdditionalInformationDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_DerivativeTable": {
     "auth_ref": [
      "r149",
      "r332",
      "r334",
      "r335",
      "r337",
      "r338",
      "r344",
      "r349",
      "r355",
      "r357",
      "r362"
     ],
     "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.patternenergy.com/role/DerivativeInstrumentsAdditionalInformationDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsScheduleOfDerivativeInstrumentsClassifiedAsAssetsLiabilitiesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DesignatedAsHedgingInstrumentMember": {
     "auth_ref": [
      "r337"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Derivative instrument designated as hedging instrument under Generally Accepted Accounting Principles (GAAP).",
        "label": "Designated as Hedging Instrument [Member]",
        "terseLabel": "Designated Derivative Instruments"
       }
      }
     },
     "localname": "DesignatedAsHedgingInstrumentMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DerivativeInstrumentsAdditionalInformationDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsNotionalAmountsOfOutstandingDerivativeInstrumentsDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsScheduleOfDerivativeInstrumentsClassifiedAsAssetsLiabilitiesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_DisaggregationOfRevenueLineItems": {
     "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": "Disaggregation of Revenue [Line Items]",
        "terseLabel": "Disaggregation of Revenue [Line Items]"
       }
      }
     },
     "localname": "DisaggregationOfRevenueLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/RevenueDisaggregationOfRevenueDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DisaggregationOfRevenueTable": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of information about disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.",
        "label": "Disaggregation of Revenue [Table]",
        "terseLabel": "Disaggregation of Revenue [Table]"
       }
      }
     },
     "localname": "DisaggregationOfRevenueTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/RevenueDisaggregationOfRevenueDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DisaggregationOfRevenueTableTextBlock": {
     "auth_ref": [
      "r268"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.",
        "label": "Disaggregation of Revenue [Table Text Block]",
        "terseLabel": "Disaggregation of Revenue"
       }
      }
     },
     "localname": "DisaggregationOfRevenueTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/RevenueTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_DiscontinuedOperationProvisionForLossGainOnDisposalNetOfTax": {
     "auth_ref": [
      "r2",
      "r3",
      "r4",
      "r14"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after tax of (gain) loss recognized for the (reversal of write-down) write-down to fair value, less cost to sell, of a discontinued operation.",
        "label": "Discontinued Operation, Provision for Loss (Gain) on Disposal, Net of Tax",
        "terseLabel": "Impairment loss"
       }
      }
     },
     "localname": "DiscontinuedOperationProvisionForLossGainOnDisposalNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DivestedOperationsNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Discontinued Operations and Disposal Groups [Abstract]"
       }
      }
     },
     "localname": "DiscontinuedOperationsAndDisposalGroupsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_DiscontinuedOperationsDisposedOfBySaleMember": {
     "auth_ref": [
      "r1"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Component or group of components disposed of by sale and representing a strategic shift that has or will have a major effect on operations and financial results.",
        "label": "Discontinued Operations, Disposed of by Sale [Member]",
        "terseLabel": "Discontinued Operations, Disposed of by Sale"
       }
      }
     },
     "localname": "DiscontinuedOperationsDisposedOfBySaleMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DivestedOperationsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_DisposalGroupClassificationAxis": {
     "auth_ref": [
      "r13"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by disposal group classification.",
        "label": "Disposal Group Classification [Axis]",
        "terseLabel": "Disposal Group Classification [Axis]"
       }
      }
     },
     "localname": "DisposalGroupClassificationAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DivestedOperationsNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DisposalGroupClassificationDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Component or group of components disposed of, including but not limited to, disposal group held-for-sale or disposed of by sale, disposed of by means other than sale, and discontinued operations.",
        "label": "Disposal Group Classification [Domain]",
        "terseLabel": "Disposal Group Classification [Domain]"
       }
      }
     },
     "localname": "DisposalGroupClassificationDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DivestedOperationsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock": {
     "auth_ref": [
      "r18",
      "r227"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.",
        "label": "Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]",
        "terseLabel": "Divested Operations"
       }
      }
     },
     "localname": "DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DivestedOperations"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Name of disposal group.",
        "label": "Disposal Group Name [Domain]",
        "terseLabel": "Disposal Group Name [Domain]"
       }
      }
     },
     "localname": "DisposalGroupsIncludingDiscontinuedOperationsNameDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails",
      "http://www.patternenergy.com/role/DivestedOperationsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_Dividends": {
     "auth_ref": [
      "r258",
      "r458"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of paid and unpaid cash, stock, and paid-in-kind (PIK) dividends declared, for example, but not limited to, common and preferred stock.",
        "label": "Dividends",
        "negatedLabel": "Dividends declared"
       }
      }
     },
     "localname": "Dividends",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DividendsPayableAmountPerShare": {
     "auth_ref": [
      "r138"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The per share amount of a dividend declared, but not paid, as of the financial reporting date.",
        "label": "Dividends Payable, Amount Per Share",
        "verboseLabel": "Dividends payable per share (in dollars per share)"
       }
      }
     },
     "localname": "DividendsPayableAmountPerShare",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_DividendsPayableCurrent": {
     "auth_ref": [
      "r29",
      "r59"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 5.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).",
        "label": "Dividends Payable, Current",
        "terseLabel": "Dividends payable"
       }
      }
     },
     "localname": "DividendsPayableCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DividendsPayableCurrentAndNoncurrent": {
     "auth_ref": [
      "r36",
      "r38",
      "r446",
      "r463"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding.",
        "label": "Dividends Payable",
        "terseLabel": "Aggregate dividend"
       }
      }
     },
     "localname": "DividendsPayableCurrentAndNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DueFromRelatedParties": {
     "auth_ref": [
      "r148",
      "r416",
      "r450",
      "r472"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "For an unclassified balance sheet, amounts due from related parties including affiliates, employees, joint ventures, officers and stockholders, immediate families thereof, and pension funds.",
        "label": "Due from Related Parties",
        "terseLabel": "Due from related parties"
       }
      }
     },
     "localname": "DueFromRelatedParties",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyReceivableAndPayableDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DueToRelatedPartiesCurrentAndNoncurrent": {
     "auth_ref": [
      "r148",
      "r416",
      "r451",
      "r471"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Carrying amount as of the balance sheet date of obligations due all related parties.",
        "label": "Due to Related Parties",
        "terseLabel": "Due to related parties"
       }
      }
     },
     "localname": "DueToRelatedPartiesCurrentAndNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyReceivableAndPayableDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EarningsPerShareAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Earnings Per Share [Abstract]",
        "terseLabel": "Net income (loss) per share attributable to Pattern Energy"
       }
      }
     },
     "localname": "EarningsPerShareAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_EarningsPerShareBasic": {
     "auth_ref": [
      "r98",
      "r153",
      "r158",
      "r161",
      "r162",
      "r163",
      "r166",
      "r456",
      "r475"
     ],
     "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 (in dollars per share)"
       }
      }
     },
     "localname": "EarningsPerShareBasic",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.patternenergy.com/role/EarningsLossPerShareComputationsOfClassBasicAndDilutedEarningsLossPerShareDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_EarningsPerShareBasicAndDilutedAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Earnings Per Share, Basic and Diluted [Abstract]",
        "terseLabel": "Calculation of basic and diluted earnings (loss) per share:"
       }
      }
     },
     "localname": "EarningsPerShareBasicAndDilutedAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/EarningsLossPerShareComputationsOfClassBasicAndDilutedEarningsLossPerShareDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_EarningsPerShareBasicLineItems": {
     "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": "Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]",
        "terseLabel": "Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]"
       }
      }
     },
     "localname": "EarningsPerShareBasicLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/EarningsLossPerShareComputationsOfClassBasicAndDilutedEarningsLossPerShareDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_EarningsPerShareBasicTwoClassMethodAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Earnings Per Share, Basic, Two Class Method [Abstract]",
        "terseLabel": "Numerator for basic and diluted EPS:"
       }
      }
     },
     "localname": "EarningsPerShareBasicTwoClassMethodAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/EarningsLossPerShareComputationsOfClassBasicAndDilutedEarningsLossPerShareDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_EarningsPerShareDiluted": {
     "auth_ref": [
      "r98",
      "r153",
      "r158",
      "r161",
      "r162",
      "r163",
      "r166",
      "r456",
      "r475"
     ],
     "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 (in dollars per share)"
       }
      }
     },
     "localname": "EarningsPerShareDiluted",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.patternenergy.com/role/EarningsLossPerShareComputationsOfClassBasicAndDilutedEarningsLossPerShareDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_EarningsPerShareReconciliationAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Earnings Per Share Reconciliation [Abstract]"
       }
      }
     },
     "localname": "EarningsPerShareReconciliationAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_EarningsPerShareTextBlock": {
     "auth_ref": [
      "r167"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for earnings per share.",
        "label": "Earnings Per Share [Text Block]",
        "terseLabel": "Earnings (Loss) Per Share"
       }
      }
     },
     "localname": "EarningsPerShareTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/EarningsLossPerShare"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents": {
     "auth_ref": [
      "r384"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 1.0,
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase (decrease) from effect of exchange rate changes on cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; held in foreign currencies. Excludes amounts 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": "Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents",
        "terseLabel": "Effect of exchange rate changes on cash, cash equivalents and restricted cash"
       }
      }
     },
     "localname": "EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EnergyRelatedDerivativeMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Derivative instrument whose primary underlying risk is tied to energy, for example, but not limited to, crude oil, electricity and natural gas.",
        "label": "Energy Related Derivative [Member]",
        "terseLabel": "Energy derivative",
        "verboseLabel": "Energy derivative"
       }
      }
     },
     "localname": "EnergyRelatedDerivativeMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DerivativeInstrumentsAdditionalInformationDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsNotionalAmountsOfOutstandingDerivativeInstrumentsDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsScheduleOfDerivativeInstrumentsClassifiedAsAssetsLiabilitiesDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsSummaryOfEffectsOfUndesignatedDerivativesOnConsolidatedStatementsOfOperationsDetails",
      "http://www.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsFinancialAssetsAndLiabilitiesRequiredFairValueMeasurementOnRecurringBasisDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails",
      "http://www.patternenergy.com/role/ReconciliationOfDerivativeAssetsMeasuredAtFairValueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "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": [
      "r252"
     ],
     "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.patternenergy.com/role/AccumulatedOtherComprehensiveLossSummaryOfAccumulatedOtherComprehensiveLossDetails",
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfStockholdersEquity",
      "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_EquityMethodInvestmentAggregateCost": {
     "auth_ref": [
      "r50"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "This element represents the aggregate cost of investments accounted for under the equity method of accounting.",
        "label": "Equity Method Investment, Aggregate Cost",
        "terseLabel": "Equity method investment, aggregate cost"
       }
      }
     },
     "localname": "EquityMethodInvestmentAggregateCost",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/RelatedPartyTransactionsNarrativeDetails",
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity": {
     "auth_ref": [
      "r199"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Difference between amount at which an investment accounted for under the equity method of accounting is carried (reported) on the balance sheet and amount of underlying equity in net assets the reporting Entity has in the investee.",
        "label": "Equity Method Investment, Difference Between Carrying Amount and Underlying Equity",
        "terseLabel": "Basis difference"
       }
      }
     },
     "localname": "EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EquityMethodInvestmentDividendsOrDistributions": {
     "auth_ref": [
      "r96",
      "r127",
      "r134",
      "r473"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 8.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of distribution received from equity method investee for return on investment, classified as operating activities. Excludes distribution for return of investment, classified as investing activities.",
        "label": "Proceeds from Equity Method Investment, Distribution",
        "terseLabel": "Distributions from unconsolidated investments"
       }
      }
     },
     "localname": "EquityMethodInvestmentDividendsOrDistributions",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EquityMethodInvestmentOwnershipPercentage": {
     "auth_ref": [
      "r198"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.",
        "label": "Equity Method Investment, Ownership Percentage",
        "terseLabel": "Percentage of Ownership",
        "verboseLabel": "Percentage of ownership"
       }
      }
     },
     "localname": "EquityMethodInvestmentOwnershipPercentage",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/RelatedPartyTransactionsNarrativeDetails",
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsNarrativeDetails",
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsScheduleOfProjectsAccountedUnderEquityMethodOfAccountingDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_EquityMethodInvestmentSummarizedFinancialInformationCostOfSales": {
     "auth_ref": [
      "r17",
      "r201"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsSummarizedOperatingResultsOfUnconsolidatedInvesteesDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The amount of the cost of sales reported by an equity method investment of the entity.",
        "label": "Equity Method Investment, Summarized Financial Information, Cost of Sales",
        "terseLabel": "Cost of revenue"
       }
      }
     },
     "localname": "EquityMethodInvestmentSummarizedFinancialInformationCostOfSales",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsSummarizedOperatingResultsOfUnconsolidatedInvesteesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss": {
     "auth_ref": [
      "r17",
      "r142",
      "r197",
      "r201",
      "r383"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsSummarizedOperatingResultsOfUnconsolidatedInvesteesDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The amount of net income (loss) reported by an equity method investment of the entity.",
        "label": "Equity Method Investment, Summarized Financial Information, Net Income (Loss)",
        "totalLabel": "Net income (loss)"
       }
      }
     },
     "localname": "EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsSummarizedOperatingResultsOfUnconsolidatedInvesteesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EquityMethodInvestmentSummarizedFinancialInformationRevenue": {
     "auth_ref": [
      "r17",
      "r201"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsSummarizedOperatingResultsOfUnconsolidatedInvesteesDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of revenue from sale of product and rendering of service reported by equity method investee.",
        "label": "Equity Method Investment, Summarized Financial Information, Revenue",
        "terseLabel": "Revenue"
       }
      }
     },
     "localname": "EquityMethodInvestmentSummarizedFinancialInformationRevenue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsSummarizedOperatingResultsOfUnconsolidatedInvesteesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EquityMethodInvestments": {
     "auth_ref": [
      "r50",
      "r182",
      "r196"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 4.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.",
        "label": "Equity Method Investments",
        "terseLabel": "Unconsolidated investments",
        "verboseLabel": "Unconsolidated investments (Note 7)"
       }
      }
     },
     "localname": "EquityMethodInvestments",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/SegmentReportingScheduleOfSegmentInformationDetails",
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsNarrativeDetails",
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsScheduleOfProjectsAccountedUnderEquityMethodOfAccountingDetails",
      "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EquityMethodInvestmentsAndJointVenturesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Equity Method Investments and Joint Ventures [Abstract]"
       }
      }
     },
     "localname": "EquityMethodInvestmentsAndJointVenturesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_EquityMethodInvestmentsDisclosureTextBlock": {
     "auth_ref": [
      "r203",
      "r330"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for equity method investments and joint ventures. Equity method investments are investments that give the investor the ability to exercise significant influence over the operating and financial policies of an investee. Joint ventures are entities owned and operated by a small group of businesses as a separate and specific business or project for the mutual benefit of the members of the group.",
        "label": "Equity Method Investments and Joint Ventures Disclosure [Text Block]",
        "terseLabel": "Unconsolidated Investments"
       }
      }
     },
     "localname": "EquityMethodInvestmentsDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/UnconsolidatedInvestments"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_EquityMethodInvestmentsTextBlock": {
     "auth_ref": [
      "r202"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of equity method investments including, but not limited to, name of each investee or group of investments, percentage ownership, difference between recorded amount of an investment and the value of the underlying equity in the net assets, and summarized financial information.",
        "label": "Equity Method Investments [Table Text Block]",
        "terseLabel": "Schedule of Projects Accounted under Equity Method of Accounting"
       }
      }
     },
     "localname": "EquityMethodInvestmentsTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_EurodollarMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Interest rate based on U.S. dollar denominated deposits at foreign banks or foreign branches of U.S. banks.",
        "label": "Eurodollar [Member]",
        "terseLabel": "Eurodollar"
       }
      }
     },
     "localname": "EurodollarMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails"
     ],
     "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.patternenergy.com/role/FairValueMeasurementsFinancialAssetsAndLiabilitiesRequiredFairValueMeasurementOnRecurringBasisDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails",
      "http://www.patternenergy.com/role/ReconciliationOfDerivativeAssetsMeasuredAtFairValueDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable": {
     "auth_ref": [
      "r366",
      "r367",
      "r368",
      "r378"
     ],
     "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, Recurring and Nonrecurring [Table]"
       }
      }
     },
     "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueMeasurementsFinancialAssetsAndLiabilitiesRequiredFairValueMeasurementOnRecurringBasisDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems": {
     "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 Measurement Inputs and Valuation Techniques [Line Items]",
        "terseLabel": "Fair Value Measurement Inputs and Valuation Techniques [Line Items]"
       }
      }
     },
     "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable": {
     "auth_ref": [
      "r369"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of information about input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis.",
        "label": "Fair Value Measurement Inputs and Valuation Techniques [Table]",
        "terseLabel": "Fair Value Measurement Inputs and Valuation Techniques [Table]"
       }
      }
     },
     "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock": {
     "auth_ref": [
      "r369"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis.",
        "label": "Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]",
        "terseLabel": "Fair Value Measurements, Recurring Level 3, Valuation Techniques"
       }
      }
     },
     "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueMeasurementsTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss": {
     "auth_ref": [
      "r376"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of unrealized gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3) and still held.",
        "label": "Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)",
        "terseLabel": "Asset, change in unrealized gain (loss)"
       }
      }
     },
     "localname": "FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain": {
     "auth_ref": [
      "r372"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Class of asset.",
        "label": "Asset Class [Domain]",
        "terseLabel": "Asset Class [Domain]"
       }
      }
     },
     "localname": "FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward": {
     "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": "Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]",
        "terseLabel": "Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]"
       }
      }
     },
     "localname": "FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ReconciliationOfDerivativeAssetsMeasuredAtFairValueDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable": {
     "auth_ref": [
      "r372",
      "r378"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Schedule of information required and determined to be provided for purposes of reconciling beginning and ending balances of fair value measurements of assets using significant unobservable inputs (level 3). Such reconciliation, separately presenting changes during the period, at a minimum, may include, but is not limited to: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income, and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset.",
        "label": "Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]",
        "terseLabel": "Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]"
       }
      }
     },
     "localname": "FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ReconciliationOfDerivativeAssetsMeasuredAtFairValueDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock": {
     "auth_ref": [
      "r372",
      "r378"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the fair value measurement of assets using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income (loss), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset.",
        "label": "Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]",
        "terseLabel": "Reconciliation of Energy Derivative Contract Measured at Fair Value"
       }
      }
     },
     "localname": "FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.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.patternenergy.com/role/FairValueMeasurementsCarryingAmountsAndFairValuesOfCompanysFinancialLiabilitiesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueByAssetClassAxis": {
     "auth_ref": [
      "r366",
      "r378"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by class of asset.",
        "label": "Asset Class [Axis]",
        "terseLabel": "Asset Class [Axis]"
       }
      }
     },
     "localname": "FairValueByAssetClassAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueByBalanceSheetGroupingTable": {
     "auth_ref": [
      "r366",
      "r381",
      "r382"
     ],
     "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.patternenergy.com/role/FairValueMeasurementsCarryingAmountsAndFairValuesOfCompanysFinancialLiabilitiesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueByFairValueHierarchyLevelAxis": {
     "auth_ref": [
      "r274",
      "r275",
      "r277",
      "r367",
      "r425"
     ],
     "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.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsCarryingAmountsAndFairValuesOfCompanysFinancialLiabilitiesDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsFinancialAssetsAndLiabilitiesRequiredFairValueMeasurementOnRecurringBasisDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueByLiabilityClassAxis": {
     "auth_ref": [
      "r377",
      "r378"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by class of liability.",
        "label": "Liability Class [Axis]",
        "terseLabel": "Liability Class [Axis]"
       }
      }
     },
     "localname": "FairValueByLiabilityClassAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsReconciliationOfContingentConsiderationMeasuredAtFairValueDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueByMeasurementFrequencyAxis": {
     "auth_ref": [
      "r366",
      "r367",
      "r370",
      "r371",
      "r379"
     ],
     "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.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsFinancialAssetsAndLiabilitiesRequiredFairValueMeasurementOnRecurringBasisDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsReconciliationOfContingentConsiderationMeasuredAtFairValueDetails",
      "http://www.patternenergy.com/role/ReconciliationOfDerivativeAssetsMeasuredAtFairValueDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "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": [
      "r377"
     ],
     "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.patternenergy.com/role/FairValueMeasurements"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_FairValueInputsLevel1Member": {
     "auth_ref": [
      "r274",
      "r275",
      "r277",
      "r367",
      "r426"
     ],
     "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 1"
       }
      }
     },
     "localname": "FairValueInputsLevel1Member",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueMeasurementsCarryingAmountsAndFairValuesOfCompanysFinancialLiabilitiesDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsFinancialAssetsAndLiabilitiesRequiredFairValueMeasurementOnRecurringBasisDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueInputsLevel2Member": {
     "auth_ref": [
      "r274",
      "r275",
      "r277",
      "r367",
      "r427"
     ],
     "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 2"
       }
      }
     },
     "localname": "FairValueInputsLevel2Member",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueMeasurementsCarryingAmountsAndFairValuesOfCompanysFinancialLiabilitiesDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsFinancialAssetsAndLiabilitiesRequiredFairValueMeasurementOnRecurringBasisDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueInputsLevel3Member": {
     "auth_ref": [
      "r274",
      "r275",
      "r277",
      "r367",
      "r428"
     ],
     "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 3"
       }
      }
     },
     "localname": "FairValueInputsLevel3Member",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsCarryingAmountsAndFairValuesOfCompanysFinancialLiabilitiesDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsFinancialAssetsAndLiabilitiesRequiredFairValueMeasurementOnRecurringBasisDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss": {
     "auth_ref": [
      "r376"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of unrealized gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3) and still held.",
        "label": "Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss)",
        "terseLabel": "Liability, change in unrealized gain (loss)"
       }
      }
     },
     "localname": "FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain": {
     "auth_ref": [
      "r372"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents classes of liabilities measured and disclosed at fair value.",
        "label": "Fair Value by Liability Class [Domain]",
        "terseLabel": "Fair Value by Liability Class [Domain]"
       }
      }
     },
     "localname": "FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsReconciliationOfContingentConsiderationMeasuredAtFairValueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward": {
     "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": "Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]",
        "terseLabel": "Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]"
       }
      }
     },
     "localname": "FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueMeasurementsReconciliationOfContingentConsiderationMeasuredAtFairValueDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems": {
     "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, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]",
        "terseLabel": "Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]"
       }
      }
     },
     "localname": "FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueMeasurementsReconciliationOfContingentConsiderationMeasuredAtFairValueDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable": {
     "auth_ref": [
      "r372",
      "r378"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Schedule of information required and determined to be provided for purposes of reconciling beginning and ending balances of fair value measurements of liabilities using significant unobservable inputs (level 3). Separately presenting changes during the period, attributable to: (1) total gains or losses for the period (realized and unrealized) and location reported in the statement of income (or activities); (2) purchases, sales, issuances, and settlements (net); (3) transfers in and/or out of Level 3.",
        "label": "Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table]",
        "terseLabel": "Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table]"
       }
      }
     },
     "localname": "FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueMeasurementsReconciliationOfContingentConsiderationMeasuredAtFairValueDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock": {
     "auth_ref": [
      "r372",
      "r378"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability.",
        "label": "Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]",
        "terseLabel": "Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation"
       }
      }
     },
     "localname": "FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueMeasurementsTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_FairValueMeasurementFrequencyDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Measurement frequency.",
        "label": "Measurement Frequency [Domain]",
        "terseLabel": "Measurement Frequency [Domain]"
       }
      }
     },
     "localname": "FairValueMeasurementFrequencyDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsFinancialAssetsAndLiabilitiesRequiredFairValueMeasurementOnRecurringBasisDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsReconciliationOfContingentConsiderationMeasuredAtFairValueDetails",
      "http://www.patternenergy.com/role/ReconciliationOfDerivativeAssetsMeasuredAtFairValueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1": {
     "auth_ref": [
      "r373"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3).",
        "label": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings",
        "terseLabel": "Total gain (loss) included in electricity sales"
       }
      }
     },
     "localname": "FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ReconciliationOfDerivativeAssetsMeasuredAtFairValueDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements": {
     "auth_ref": [
      "r375"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of settlement of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.",
        "label": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements",
        "negatedTerseLabel": "Settlements"
       }
      }
     },
     "localname": "FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ReconciliationOfDerivativeAssetsMeasuredAtFairValueDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue": {
     "auth_ref": [
      "r372"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.",
        "label": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value",
        "periodEndLabel": "Balances, end of period",
        "periodStartLabel": "Balances, beginning of period",
        "terseLabel": "Energy derivative"
       }
      }
     },
     "localname": "FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails",
      "http://www.patternenergy.com/role/ReconciliationOfDerivativeAssetsMeasuredAtFairValueDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings": {
     "auth_ref": [
      "r373"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3).",
        "label": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings",
        "negatedTerseLabel": "Total loss included in earnings"
       }
      }
     },
     "localname": "FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueMeasurementsReconciliationOfContingentConsiderationMeasuredAtFairValueDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome": {
     "auth_ref": [
      "r374"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of gain (loss) recognized in other comprehensive income (OCI) from liability measured at fair value on recurring basis using unobservable input (level 3).",
        "label": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Other Comprehensive Income (Loss)",
        "terseLabel": "Foreign currency translation adjustments recognized in accumulated OCI"
       }
      }
     },
     "localname": "FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueMeasurementsReconciliationOfContingentConsiderationMeasuredAtFairValueDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases": {
     "auth_ref": [
      "r375"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of purchases of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.",
        "label": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases",
        "verboseLabel": "Purchase"
       }
      }
     },
     "localname": "FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueMeasurementsReconciliationOfContingentConsiderationMeasuredAtFairValueDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements": {
     "auth_ref": [
      "r375"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of settlements of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.",
        "label": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements",
        "negatedTerseLabel": "Settlement"
       }
      }
     },
     "localname": "FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueMeasurementsReconciliationOfContingentConsiderationMeasuredAtFairValueDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue": {
     "auth_ref": [
      "r372"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.",
        "label": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value",
        "periodEndLabel": "Balances, end of period",
        "periodStartLabel": "Balances, beginning of period",
        "terseLabel": "Contingent consideration"
       }
      }
     },
     "localname": "FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsReconciliationOfContingentConsiderationMeasuredAtFairValueDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "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.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsCarryingAmountsAndFairValuesOfCompanysFinancialLiabilitiesDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsFinancialAssetsAndLiabilitiesRequiredFairValueMeasurementOnRecurringBasisDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueMeasurementsRecurringMember": {
     "auth_ref": [
      "r377",
      "r379"
     ],
     "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 Measurement Basis"
       }
      }
     },
     "localname": "FairValueMeasurementsRecurringMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsFinancialAssetsAndLiabilitiesRequiredFairValueMeasurementOnRecurringBasisDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsReconciliationOfContingentConsiderationMeasuredAtFairValueDetails",
      "http://www.patternenergy.com/role/ReconciliationOfDerivativeAssetsMeasuredAtFairValueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FederalFundsEffectiveSwapRateMember": {
     "auth_ref": [
      "r359"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fixed rate on U.S. dollar, constant-notional interest rate swap having its variable-rate leg referenced to Federal Funds effective rate with no additional spread over Federal Funds effective rate on that variable-rate leg.",
        "label": "Fed Funds Effective Rate Overnight Index Swap Rate [Member]",
        "terseLabel": "Federal Funds Rate"
       }
      }
     },
     "localname": "FederalFundsEffectiveSwapRateMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FinancialInstrumentAxis": {
     "auth_ref": [
      "r204",
      "r205",
      "r206",
      "r207",
      "r208",
      "r209",
      "r210",
      "r211",
      "r212"
     ],
     "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.patternenergy.com/role/FairValueMeasurementsFinancialAssetsAndLiabilitiesRequiredFairValueMeasurementOnRecurringBasisDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetsNet": {
     "auth_ref": [
      "r217"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 8.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "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": "Intangible assets, net (Note 7)",
        "verboseLabel": "Intangible assets, net"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetsNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ForeignExchangeForwardMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Foreign exchange forward traded on an exchange (examples include but are not limited to the International Securities Exchange, Philadelphia Stock Exchange, or the Chicago Mercantile Exchange) for options or future contracts to buy or sell a certain currency, at a specified date, at a fixed exercise exchange rate.",
        "label": "Foreign Exchange Forward [Member]",
        "verboseLabel": "Foreign currency forward contracts"
       }
      }
     },
     "localname": "ForeignExchangeForwardMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DerivativeInstrumentsAdditionalInformationDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsNotionalAmountsOfOutstandingDerivativeInstrumentsDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsScheduleOfDerivativeInstrumentsClassifiedAsAssetsLiabilitiesDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsSummaryOfEffectsOfUndesignatedDerivativesOnConsolidatedStatementsOfOperationsDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsFinancialAssetsAndLiabilitiesRequiredFairValueMeasurementOnRecurringBasisDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_GainLossOnDerivativeInstrumentsMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Primary financial statement caption encompassing gain (loss) on derivative instruments.",
        "label": "Gain (Loss) on Derivative Instruments [Member]",
        "terseLabel": "Gain (loss) on derivatives",
        "verboseLabel": "Gain on derivatives"
       }
      }
     },
     "localname": "GainLossOnDerivativeInstrumentsMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DerivativeInstrumentsSummaryOfEffectsOfCashFlowHedgesOnConsolidatedStatementsOfOperationsDetails",
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments": {
     "auth_ref": [
      "r340",
      "r348"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of gain (loss) recognized in earnings in the period from the increase (decrease) in fair value of foreign currency derivatives not designated as hedging instruments.",
        "label": "Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments",
        "terseLabel": "Gain on derivatives"
       }
      }
     },
     "localname": "GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DerivativeInstrumentsSummaryOfEffectsOfUndesignatedDerivativesOnConsolidatedStatementsOfOperationsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_GainLossOnInterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstruments": {
     "auth_ref": [
      "r340",
      "r348"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of gain (loss) included in earnings for the period from the increase (decrease) in fair value of interest rate derivatives not designated as hedging instruments.",
        "label": "Gain (Loss) on Interest Rate Derivative Instruments Not Designated as Hedging Instruments",
        "terseLabel": "Gain on derivatives"
       }
      }
     },
     "localname": "GainLossOnInterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstruments",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DerivativeInstrumentsSummaryOfEffectsOfUndesignatedDerivativesOnConsolidatedStatementsOfOperationsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments": {
     "auth_ref": [
      "r348"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of gain (loss) recognized in earnings in the period from the increase (decrease) in fair value of price risk derivatives not designated as hedging instruments.",
        "label": "Gain (Loss) on Price Risk Derivative Instruments Not Designated as Hedging Instruments",
        "terseLabel": "Electricity sales"
       }
      }
     },
     "localname": "GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DerivativeInstrumentsSummaryOfEffectsOfUndesignatedDerivativesOnConsolidatedStatementsOfOperationsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_GeneralAndAdministrativeExpense": {
     "auth_ref": [
      "r106"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 1.0,
       "parentTag": "us-gaap_OperatingExpenses",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.",
        "label": "General and Administrative Expense",
        "terseLabel": "General and administrative"
       }
      }
     },
     "localname": "GeneralAndAdministrativeExpense",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_GeneralAndAdministrativeExpenseMember": {
     "auth_ref": [
      "r99"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Primary financial statement caption encompassing general and administrative expense.",
        "label": "General and Administrative Expense [Member]",
        "terseLabel": "General and administrative"
       }
      }
     },
     "localname": "GeneralAndAdministrativeExpenseMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyTransactionRevenueAndExpensesIncludedInStatementsOfOperationsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_Goodwill": {
     "auth_ref": [
      "r214",
      "r215"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 11.0,
       "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"
       }
      }
     },
     "localname": "Goodwill",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_GrossProfit": {
     "auth_ref": [
      "r102"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 1.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.",
        "label": "Gross Profit",
        "totalLabel": "Gross profit (loss)"
       }
      }
     },
     "localname": "GrossProfit",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_HedgingDesignationAxis": {
     "auth_ref": [
      "r337",
      "r354"
     ],
     "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.patternenergy.com/role/DerivativeInstrumentsAdditionalInformationDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsNotionalAmountsOfOutstandingDerivativeInstrumentsDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsScheduleOfDerivativeInstrumentsClassifiedAsAssetsLiabilitiesDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsSummaryOfEffectsOfUndesignatedDerivativesOnConsolidatedStatementsOfOperationsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_HedgingDesignationDomain": {
     "auth_ref": [
      "r337"
     ],
     "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.patternenergy.com/role/DerivativeInstrumentsAdditionalInformationDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsNotionalAmountsOfOutstandingDerivativeInstrumentsDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsScheduleOfDerivativeInstrumentsClassifiedAsAssetsLiabilitiesDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsSummaryOfEffectsOfUndesignatedDerivativesOnConsolidatedStatementsOfOperationsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_HedgingRelationshipDomain": {
     "auth_ref": [
      "r337"
     ],
     "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.patternenergy.com/role/DerivativeInstrumentsSummaryOfEffectsOfCashFlowHedgesOnConsolidatedStatementsOfOperationsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest": {
     "auth_ref": [
      "r95",
      "r153",
      "r442",
      "r454",
      "r476"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 1.0,
       "parentTag": "us-gaap_ProfitLoss",
       "weight": 1.0
      },
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "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",
        "totalLabel": "Net loss before income tax"
       }
      }
     },
     "localname": "IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeLossFromEquityMethodInvestments": {
     "auth_ref": [
      "r96",
      "r134",
      "r179",
      "r196",
      "r453",
      "r473"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 3.0,
       "parentTag": "us-gaap_NonoperatingIncomeExpense",
       "weight": 1.0
      },
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of income (loss) for proportionate share of equity method investee's income (loss).",
        "label": "Income (Loss) from Equity Method Investments",
        "terseLabel": "Earnings (loss) in unconsolidated investments, net",
        "verboseLabel": "Earnings (loss) in unconsolidated investments"
       }
      }
     },
     "localname": "IncomeLossFromEquityMethodInvestments",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails",
      "http://www.patternenergy.com/role/SegmentReportingScheduleOfSegmentInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeLossFromSubsidiariesNetOfTax": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after tax of income (loss) of subsidiary attributable to the parent entity.",
        "label": "Income (Loss) from Subsidiaries, Net of Tax",
        "negatedTerseLabel": "Loss related to portion of loss of Pattern Development"
       }
      }
     },
     "localname": "IncomeLossFromSubsidiariesNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SegmentReportingScheduleOfSegmentInformationDetails"
     ],
     "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_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by name of disposal group.",
        "label": "Disposal Group Name [Axis]",
        "terseLabel": "Disposal Group Name [Axis]"
       }
      }
     },
     "localname": "IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails",
      "http://www.patternenergy.com/role/DivestedOperationsNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems": {
     "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": "Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]",
        "terseLabel": "Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]"
       }
      }
     },
     "localname": "IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DivestedOperationsNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable": {
     "auth_ref": [
      "r0",
      "r6",
      "r7",
      "r8",
      "r9",
      "r10",
      "r11",
      "r12",
      "r15",
      "r16",
      "r17",
      "r225",
      "r226"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of information about a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.",
        "label": "Disposal Groups, Including Discontinued Operations [Table]",
        "terseLabel": "Disposal Groups, Including Discontinued Operations [Table]"
       }
      }
     },
     "localname": "IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DivestedOperationsNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncomeStatementLocationAxis": {
     "auth_ref": [
      "r223"
     ],
     "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.patternenergy.com/role/DerivativeInstrumentsSummaryOfEffectsOfCashFlowHedgesOnConsolidatedStatementsOfOperationsDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsReconciliationOfContingentConsiderationMeasuredAtFairValueDetails",
      "http://www.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyTransactionRevenueAndExpensesIncludedInStatementsOfOperationsDetails",
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails"
     ],
     "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.patternenergy.com/role/DerivativeInstrumentsSummaryOfEffectsOfCashFlowHedgesOnConsolidatedStatementsOfOperationsDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsReconciliationOfContingentConsiderationMeasuredAtFairValueDetails",
      "http://www.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyTransactionRevenueAndExpensesIncludedInStatementsOfOperationsDetails",
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_IncomeTaxExpenseBenefit": {
     "auth_ref": [
      "r143",
      "r180",
      "r286"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 2.0,
       "parentTag": "us-gaap_ProfitLoss",
       "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)",
        "negatedTerseLabel": "Income tax provision",
        "terseLabel": "Income tax provision"
       }
      }
     },
     "localname": "IncomeTaxExpenseBenefit",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails",
      "http://www.patternenergy.com/role/SegmentReportingScheduleOfSegmentInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeTaxReceivable": {
     "auth_ref": [
      "r48",
      "r460"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 9.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Carrying amount as of the balance sheet date of income taxes previously overpaid to tax authorities (such as U.S. Federal, state and local tax authorities) representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes. Also called income tax refund receivable.",
        "label": "Income Taxes Receivable",
        "terseLabel": "Sales tax receivable"
       }
      }
     },
     "localname": "IncomeTaxReceivable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeTaxesPaid": {
     "auth_ref": [
      "r131",
      "r137"
     ],
     "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.",
        "label": "Income Taxes Paid",
        "terseLabel": "Cash payments for income taxes"
       }
      }
     },
     "localname": "IncomeTaxesPaid",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseCashCollateralFromCounterparties": {
     "auth_ref": [
      "r133"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 10.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The increase (decrease) during the reporting period in the amount of cash held either as collateral directly or provided to third parties associated with derivative instruments. Upon the occurrence of any specified triggering event or condition associated with the derivative, these amounts can be utilized to recover all or a portion of the amounts due or payable under the derivative.",
        "label": "Increase (Decrease) Cash Collateral from Counterparties",
        "terseLabel": "Counterparty collateral asset"
       }
      }
     },
     "localname": "IncreaseDecreaseCashCollateralFromCounterparties",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities": {
     "auth_ref": [
      "r133"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 15.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The increase (decrease) during the reporting period in the amounts payable to vendors for goods and services received and the amount of obligations and expenses incurred but not paid.",
        "label": "Increase (Decrease) in Accounts Payable and Accrued Liabilities",
        "terseLabel": "Accounts payable and other accrued liabilities"
       }
      }
     },
     "localname": "IncreaseDecreaseInAccountsPayableAndAccruedLiabilities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInAccountsReceivable": {
     "auth_ref": [
      "r133"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 11.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services.",
        "label": "Increase (Decrease) in Accounts Receivable",
        "negatedLabel": "Trade receivables"
       }
      }
     },
     "localname": "IncreaseDecreaseInAccountsReceivable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInLeasingReceivables": {
     "auth_ref": [
      "r133"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 14.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The increase (decrease) during the reporting period in the amount due from lessees arising from lease agreements.",
        "label": "Increase (Decrease) in Leasing Receivables",
        "negatedLabel": "Advanced lease revenue"
       }
      }
     },
     "localname": "IncreaseDecreaseInLeasingReceivables",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInOperatingCapitalAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Increase (Decrease) in Operating Capital [Abstract]",
        "terseLabel": "Changes in operating assets and liabilities:"
       }
      }
     },
     "localname": "IncreaseDecreaseInOperatingCapitalAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncreaseDecreaseInOtherCurrentAssets": {
     "auth_ref": [
      "r133"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 12.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase (decrease) in current assets classified as other.",
        "label": "Increase (Decrease) in Other Current Assets",
        "negatedLabel": "Other current assets"
       }
      }
     },
     "localname": "IncreaseDecreaseInOtherCurrentAssets",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInOtherCurrentLiabilities": {
     "auth_ref": [
      "r133"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 17.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase (decrease) in current liabilities classified as other.",
        "label": "Increase (Decrease) in Other Current Liabilities",
        "terseLabel": "Other current liabilities"
       }
      }
     },
     "localname": "IncreaseDecreaseInOtherCurrentLiabilities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInOtherNoncurrentAssets": {
     "auth_ref": [
      "r133"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 13.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase (decrease) in noncurrent assets classified as other.",
        "label": "Increase (Decrease) in Other Noncurrent Assets",
        "negatedLabel": "Other assets (non-current)"
       }
      }
     },
     "localname": "IncreaseDecreaseInOtherNoncurrentAssets",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "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.patternenergy.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements": {
     "auth_ref": [
      "r159",
      "r165"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.",
        "label": "Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements",
        "terseLabel": "Add dilutive effect (in shares)"
       }
      }
     },
     "localname": "IncrementalCommonSharesAttributableToShareBasedPaymentArrangements",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/EarningsLossPerShareComputationsOfClassBasicAndDilutedEarningsLossPerShareDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_InterestExpense": {
     "auth_ref": [
      "r93",
      "r178",
      "r389",
      "r392",
      "r457"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 1.0,
       "parentTag": "us-gaap_NonoperatingIncomeExpense",
       "weight": -1.0
      },
      "http://www.patternenergy.com/role/DebtScheduleOfReconciliationOfInterestExpenseDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of the cost of borrowed funds accounted for as interest expense.",
        "label": "Interest Expense",
        "negatedLabel": "Interest expense",
        "terseLabel": "Interest expense",
        "totalLabel": "Interest expense"
       }
      }
     },
     "localname": "InterestExpense",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.patternenergy.com/role/DebtScheduleOfReconciliationOfInterestExpenseDetails",
      "http://www.patternenergy.com/role/SegmentReportingScheduleOfSegmentInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestExpenseMember": {
     "auth_ref": [
      "r352"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Primary financial statement caption encompassing interest expense.",
        "label": "Interest Expense [Member]",
        "terseLabel": "Interest expense"
       }
      }
     },
     "localname": "InterestExpenseMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DerivativeInstrumentsSummaryOfEffectsOfCashFlowHedgesOnConsolidatedStatementsOfOperationsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_InterestOnConvertibleDebtNetOfTax": {
     "auth_ref": [
      "r157"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/EarningsLossPerShareComputationsOfClassBasicAndDilutedEarningsLossPerShareDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The after-tax amount of interest recognized in the period associated with any convertible debt.",
        "label": "Interest on Convertible Debt, Net of Tax",
        "terseLabel": "Add back convertible senior notes interest"
       }
      }
     },
     "localname": "InterestOnConvertibleDebtNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/EarningsLossPerShareComputationsOfClassBasicAndDilutedEarningsLossPerShareDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestPaidNet": {
     "auth_ref": [
      "r124",
      "r130",
      "r137"
     ],
     "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": "Cash payments for interest expense"
       }
      }
     },
     "localname": "InterestPaidNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestPayableCurrent": {
     "auth_ref": [
      "r29",
      "r30",
      "r59"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 4.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).",
        "label": "Interest Payable, Current",
        "verboseLabel": "Accrued interest (Note 7)"
       }
      }
     },
     "localname": "InterestPayableCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestRateContractMember": {
     "auth_ref": [
      "r274",
      "r351"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Derivative instrument whose primary underlying risk is tied to the right to receive or pay a sum of money at a given interest rate.",
        "label": "Interest Rate Contract [Member]",
        "terseLabel": "Interest rate derivatives"
       }
      }
     },
     "localname": "InterestRateContractMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DerivativeInstrumentsSummaryOfEffectsOfUndesignatedDerivativesOnConsolidatedStatementsOfOperationsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_InterestRateSwapMember": {
     "auth_ref": [
      "r351"
     ],
     "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.patternenergy.com/role/DerivativeInstrumentsAdditionalInformationDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsNotionalAmountsOfOutstandingDerivativeInstrumentsDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsScheduleOfDerivativeInstrumentsClassifiedAsAssetsLiabilitiesDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsFinancialAssetsAndLiabilitiesRequiredFairValueMeasurementOnRecurringBasisDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_InterestRevenueExpenseNet": {
     "auth_ref": [
      "r181"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails": {
       "order": 7.0,
       "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of interest revenue (income derived from investments in debt securities and on cash and cash equivalents) net of interest expense (cost of borrowed funds accounted for as interest).",
        "label": "Interest Revenue (Expense), Net",
        "terseLabel": "Interest expense, net of interest income"
       }
      }
     },
     "localname": "InterestRevenueExpenseNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LeaseCost": {
     "auth_ref": [
      "r411",
      "r413"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/LeasesScheduleOfLeaseCostSupplementalCashFlowAndOtherInformationDetails": {
       "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": "Total lease cost"
       }
      }
     },
     "localname": "LeaseCost",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesScheduleOfLeaseCostSupplementalCashFlowAndOtherInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LeaseCostAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Lease, Cost [Abstract]",
        "terseLabel": "Lease, Cost [Abstract]"
       }
      }
     },
     "localname": "LeaseCostAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesScheduleOfLeaseCostSupplementalCashFlowAndOtherInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LeaseCostTableTextBlock": {
     "auth_ref": [
      "r411"
     ],
     "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": "Schedule of Lease Cost"
       }
      }
     },
     "localname": "LeaseCostTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "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_LesseeLeaseDescriptionLineItems": {
     "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": "Lessee, Lease, Description [Line Items]",
        "terseLabel": "Lessee, Lease, Description [Line Items]"
       }
      }
     },
     "localname": "LesseeLeaseDescriptionLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LesseeLeaseDescriptionTable": {
     "auth_ref": [
      "r404"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of information about lessee's leases.",
        "label": "Lessee, Lease, Description [Table]",
        "terseLabel": "Lessee, Lease, Description [Table]"
       }
      }
     },
     "localname": "LesseeLeaseDescriptionTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LesseeLeasesPolicyTextBlock": {
     "auth_ref": [
      "r403"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for leasing arrangement entered into by lessee.",
        "label": "Lessee, Leases [Policy Text Block]",
        "terseLabel": "Leases"
       }
      }
     },
     "localname": "LesseeLeasesPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock": {
     "auth_ref": [
      "r412"
     ],
     "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 Maturities of Operating Lease Liabilities"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityMaturityTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue": {
     "auth_ref": [
      "r412"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/LeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      },
      "http://www.patternenergy.com/role/LeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetailsCalc2": {
       "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 payment"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive": {
     "auth_ref": [
      "r412"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/LeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails": {
       "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": "Thereafter"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive": {
     "auth_ref": [
      "r412"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/LeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails": {
       "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, due in fifth fiscal year following latest fiscal year.",
        "label": "Lessee, Operating Lease, Liability, Payments, Due Year Five",
        "terseLabel": "2023"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearFive",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour": {
     "auth_ref": [
      "r412"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/LeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails": {
       "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": "2022"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearFour",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree": {
     "auth_ref": [
      "r412"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/LeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails": {
       "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 third fiscal year following latest fiscal year.",
        "label": "Lessee, Operating Lease, Liability, Payments, Due Year Three",
        "terseLabel": "2021"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearThree",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo": {
     "auth_ref": [
      "r412"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/LeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails": {
       "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": "2020"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearTwo",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear": {
     "auth_ref": [
      "r412"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/LeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails": {
       "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 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": "Remainder of 2019"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount": {
     "auth_ref": [
      "r412"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/LeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetailsCalc2": {
       "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 in excess of discounted obligation for lease payments for operating lease.",
        "label": "Lessee, Operating Lease, Liability, Undiscounted Excess Amount",
        "negatedTerseLabel": "Less imputed interest"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityUndiscountedExcessAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeasesTextBlock": {
     "auth_ref": [
      "r414"
     ],
     "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.patternenergy.com/role/Leases"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_LessorOperatingLeasePaymentsFiscalYearMaturityAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Lessor, Operating Lease, Payments, Fiscal Year Maturity [Abstract]",
        "terseLabel": "Future Sublease Proceeds Under Sublease Arrangement"
       }
      }
     },
     "localname": "LessorOperatingLeasePaymentsFiscalYearMaturityAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LessorOperatingLeasePaymentsToBeReceivedFiveYears": {
     "auth_ref": [
      "r415"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lease payments to be received by lessor in fifth fiscal year following latest fiscal year for operating lease. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest statement of financial position date.",
        "label": "Lessor, Operating Lease, Payments to be Received, Five Years",
        "terseLabel": "2023"
       }
      }
     },
     "localname": "LessorOperatingLeasePaymentsToBeReceivedFiveYears",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LessorOperatingLeasePaymentsToBeReceivedFourYears": {
     "auth_ref": [
      "r415"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lease payments to be received by lessor in fourth year following latest fiscal year for operating lease. Excludes interim and annual periods when interim periods are reported on rolling approach, from latest statement of financial position date.",
        "label": "Lessor, Operating Lease, Payments to be Received, Four Years",
        "terseLabel": "2022"
       }
      }
     },
     "localname": "LessorOperatingLeasePaymentsToBeReceivedFourYears",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear": {
     "auth_ref": [
      "r415"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lease payments to be received by lessor in remainder of fiscal year following latest fiscal year for operating lease. Excludes interim and annual periods when interim periods are reported on rolling approach, from latest statement of financial position date.",
        "label": "Lessor, Operating Lease, Payments to be Received, Remainder of Fiscal Year",
        "terseLabel": "Remainder of 2019"
       }
      }
     },
     "localname": "LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LessorOperatingLeasePaymentsToBeReceivedThreeYears": {
     "auth_ref": [
      "r415"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lease payments to be received by lessor in third fiscal year following latest fiscal year for operating lease. Excludes interim and annual periods when interim periods are reported on rolling approach, from latest statement of financial position date.",
        "label": "Lessor, Operating Lease, Payments to be Received, Three Years",
        "terseLabel": "2021"
       }
      }
     },
     "localname": "LessorOperatingLeasePaymentsToBeReceivedThreeYears",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LessorOperatingLeasePaymentsToBeReceivedTwoYears": {
     "auth_ref": [
      "r415"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lease payments to be received by lessor in second fiscal year following latest fiscal year for operating lease. Excludes interim and annual periods when interim periods are reported on rolling approach, from latest statement of financial position date.",
        "label": "Lessor, Operating Lease, Payments to be Received, Two Years",
        "terseLabel": "2020"
       }
      }
     },
     "localname": "LessorOperatingLeasePaymentsToBeReceivedTwoYears",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LettersOfCreditOutstandingAmount": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.",
        "label": "Letters of Credit Outstanding, Amount",
        "terseLabel": "Letters of credit issued"
       }
      }
     },
     "localname": "LettersOfCreditOutstandingAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails",
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_Liabilities": {
     "auth_ref": [
      "r58"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "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.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "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.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LiabilitiesAndStockholdersEquity": {
     "auth_ref": [
      "r47",
      "r449",
      "r468"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "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 equity"
       }
      }
     },
     "localname": "LiabilitiesAndStockholdersEquity",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilitiesAndStockholdersEquityAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Liabilities and Equity [Abstract]",
        "terseLabel": "Liabilities and equity"
       }
      }
     },
     "localname": "LiabilitiesAndStockholdersEquityAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LiabilitiesCurrent": {
     "auth_ref": [
      "r60"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 1.0,
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.",
        "label": "Liabilities, Current",
        "totalLabel": "Total current liabilities"
       }
      }
     },
     "localname": "LiabilitiesCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilitiesCurrentAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Liabilities, Current [Abstract]",
        "terseLabel": "Current liabilities:"
       }
      }
     },
     "localname": "LiabilitiesCurrentAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LiabilitiesFairValueDisclosure": {
     "auth_ref": [
      "r366"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/FairValueMeasurementsFinancialAssetsAndLiabilitiesRequiredFairValueMeasurementOnRecurringBasisDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value of financial and nonfinancial obligations.",
        "label": "Financial and Nonfinancial Liabilities, Fair Value Disclosure",
        "totalLabel": "Liabilities"
       }
      }
     },
     "localname": "LiabilitiesFairValueDisclosure",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueMeasurementsFinancialAssetsAndLiabilitiesRequiredFairValueMeasurementOnRecurringBasisDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilitiesFairValueDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Liabilities, Fair Value Disclosure [Abstract]",
        "terseLabel": "Liabilities, Fair Value Disclosure [Abstract]"
       }
      }
     },
     "localname": "LiabilitiesFairValueDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueMeasurementsFinancialAssetsAndLiabilitiesRequiredFairValueMeasurementOnRecurringBasisDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LineOfCredit": {
     "auth_ref": [
      "r37",
      "r447",
      "r461"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.",
        "label": "Long-term Line of Credit",
        "terseLabel": "Line of credit term loan"
       }
      }
     },
     "localname": "LineOfCredit",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LineOfCreditFacilityCommitmentFeePercentage": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.",
        "label": "Line of Credit Facility, Commitment Fee Percentage",
        "terseLabel": "Commitment fee percentage"
       }
      }
     },
     "localname": "LineOfCreditFacilityCommitmentFeePercentage",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_LineOfCreditFacilityLineItems": {
     "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": "Line of Credit Facility [Line Items]",
        "terseLabel": "Line of Credit Facility [Line Items]"
       }
      }
     },
     "localname": "LineOfCreditFacilityLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity": {
     "auth_ref": [
      "r55"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.",
        "label": "Line of Credit Facility, Maximum Borrowing Capacity",
        "terseLabel": "Maximum borrowing capacity"
       }
      }
     },
     "localname": "LineOfCreditFacilityMaximumBorrowingCapacity",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity": {
     "auth_ref": [
      "r55"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).",
        "label": "Line of Credit Facility, Remaining Borrowing Capacity",
        "terseLabel": "Remaining borrowing capacity"
       }
      }
     },
     "localname": "LineOfCreditFacilityRemainingBorrowingCapacity",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LineOfCreditFacilityTable": {
     "auth_ref": [
      "r55",
      "r147"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A table or schedule providing information pertaining to short-term or long-term contractual arrangements with lenders, including letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line.",
        "label": "Line of Credit Facility [Table]",
        "terseLabel": "Line of Credit Facility [Table]"
       }
      }
     },
     "localname": "LineOfCreditFacilityTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.",
        "label": "Line of Credit Facility, Unused Capacity, Commitment Fee Percentage",
        "terseLabel": "Unused capacity, commitment fee percentage"
       }
      }
     },
     "localname": "LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_LinesOfCreditCurrent": {
     "auth_ref": [
      "r35",
      "r445"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 9.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      },
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetailsCalc2": {
       "order": 1.0,
       "parentTag": "us-gaap_LongTermDebt",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.",
        "label": "Line of Credit, Current",
        "terseLabel": "Revolving credit facility, current",
        "verboseLabel": "Revolving credit facility, current"
       }
      }
     },
     "localname": "LinesOfCreditCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LondonInterbankOfferedRateLIBORMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Interest rate at which a bank borrows funds from other banks in the London interbank market.",
        "label": "London Interbank Offered Rate (LIBOR) [Member]",
        "terseLabel": "LIBOR"
       }
      }
     },
     "localname": "LondonInterbankOfferedRateLIBORMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_LongTermDebt": {
     "auth_ref": [
      "r37",
      "r249",
      "r447",
      "r464"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      },
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetailsCalc2": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "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": "Long-term debt, including current portion as reflected on balance sheets",
        "totalLabel": "Total debt, net"
       }
      }
     },
     "localname": "LongTermDebt",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails",
      "http://www.patternenergy.com/role/FairValueMeasurementsCarryingAmountsAndFairValuesOfCompanysFinancialLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LongTermDebtCurrent": {
     "auth_ref": [
      "r57"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 7.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      },
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetailsCalc2": {
       "order": 3.0,
       "parentTag": "us-gaap_LongTermDebt",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.",
        "label": "Long-term Debt, Current Maturities",
        "terseLabel": "Current portion of long-term debt, net"
       }
      }
     },
     "localname": "LongTermDebtCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails",
      "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LongTermDebtFairValue": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.",
        "label": "Long-term Debt, Fair Value",
        "terseLabel": "Fair value, long-term debt, including current portion"
       }
      }
     },
     "localname": "LongTermDebtFairValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueMeasurementsCarryingAmountsAndFairValuesOfCompanysFinancialLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LongTermDebtNoncurrent": {
     "auth_ref": [
      "r62"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 2.0,
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0
      },
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetailsCalc2": {
       "order": 4.0,
       "parentTag": "us-gaap_LongTermDebt",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.",
        "label": "Long-term Debt, Excluding Current Maturities",
        "terseLabel": "Long-term debt, less current portion",
        "verboseLabel": "Long-term debt, net"
       }
      }
     },
     "localname": "LongTermDebtNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails",
      "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LongTermLineOfCredit": {
     "auth_ref": [
      "r62",
      "r243",
      "r244"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 8.0,
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0
      },
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetailsCalc2": {
       "order": 2.0,
       "parentTag": "us-gaap_LongTermDebt",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.",
        "label": "Long-term Line of Credit, Noncurrent",
        "terseLabel": "Revolving credit facility",
        "verboseLabel": "Revolving credit facility"
       }
      }
     },
     "localname": "LongTermLineOfCredit",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/DebtScheduleOfDebtDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LongtermDebtTypeAxis": {
     "auth_ref": [
      "r62"
     ],
     "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.patternenergy.com/role/DebtAdditionalInformationDetails",
      "http://www.patternenergy.com/role/DebtConvertibleSeniorNoteDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LongtermDebtTypeDomain": {
     "auth_ref": [
      "r62",
      "r245"
     ],
     "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.patternenergy.com/role/DebtAdditionalInformationDetails",
      "http://www.patternenergy.com/role/DebtConvertibleSeniorNoteDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_LossContingenciesByNatureOfContingencyAxis": {
     "auth_ref": [
      "r232",
      "r233",
      "r234",
      "r236",
      "r237",
      "r238",
      "r239",
      "r241",
      "r242"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of existing condition, situation, or set of circumstances involving uncertainty as to possible loss to an enterprise that will ultimately be resolved when one or more future events occur or fail to occur.",
        "label": "Loss Contingency Nature [Axis]",
        "terseLabel": "Loss Contingency Nature [Axis]"
       }
      }
     },
     "localname": "LossContingenciesByNatureOfContingencyAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LossContingencyAccrualAtCarryingValue": {
     "auth_ref": [
      "r232"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of loss contingency liability.",
        "label": "Loss Contingency Accrual",
        "terseLabel": "Loss contingency accrual"
       }
      }
     },
     "localname": "LossContingencyAccrualAtCarryingValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LossContingencyNatureDomain": {
     "auth_ref": [
      "r232",
      "r233",
      "r234",
      "r236",
      "r237",
      "r238",
      "r239",
      "r241",
      "r242"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "An existing condition, situation, or set of circumstances involving uncertainty as to possible loss to an enterprise that will ultimately be resolved when one or more future events occur or fail to occur. Resolution of the uncertainty may confirm the incurrence of a loss or impairment of an asset or the incurrence of a liability.",
        "label": "Loss Contingency, Nature [Domain]",
        "terseLabel": "Loss Contingency, Nature [Domain]"
       }
      }
     },
     "localname": "LossContingencyNatureDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_MaterialReconcilingItemsMember": {
     "auth_ref": [
      "r185",
      "r186"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Items used in reconciling reportable segments' amounts to consolidated amount. Excludes corporate-level activity.",
        "label": "Segment Reconciling Items [Member]",
        "terseLabel": "Reconciling Amounts"
       }
      }
     },
     "localname": "MaterialReconcilingItemsMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails",
      "http://www.patternenergy.com/role/SegmentReportingScheduleOfSegmentInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_MeasurementInputCommodityForwardPriceMember": {
     "auth_ref": [
      "r369"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Measurement input using forward price of commodity.",
        "label": "Measurement Input, Commodity Forward Price [Member]",
        "terseLabel": "Measurement Input, Commodity Forward Price"
       }
      }
     },
     "localname": "MeasurementInputCommodityForwardPriceMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_MeasurementInputDiscountRateMember": {
     "auth_ref": [
      "r369"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Measurement input using interest rate to determine present value of future cash flows.",
        "label": "Measurement Input, Discount Rate [Member]",
        "terseLabel": "Measurement Input, Discount Rate"
       }
      }
     },
     "localname": "MeasurementInputDiscountRateMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails",
      "http://www.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_MeasurementInputTypeAxis": {
     "auth_ref": [
      "r369"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of measurement input used to determine value of asset and liability.",
        "label": "Measurement Input Type [Axis]",
        "terseLabel": "Measurement Input Type [Axis]"
       }
      }
     },
     "localname": "MeasurementInputTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails",
      "http://www.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_MeasurementInputTypeDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Measurement input used to determine value of asset and liability.",
        "label": "Measurement Input Type [Domain]",
        "terseLabel": "Measurement Input Type [Domain]"
       }
      }
     },
     "localname": "MeasurementInputTypeDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails",
      "http://www.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_MinorityInterest": {
     "auth_ref": [
      "r67",
      "r448",
      "r467"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 2.0,
       "parentTag": "us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest",
       "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 is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).",
        "label": "Stockholders' Equity Attributable to Noncontrolling Interest",
        "periodEndLabel": "Ending balance",
        "periodStartLabel": "Beginning balance",
        "terseLabel": "Noncontrolling interest"
       }
      }
     },
     "localname": "MinorityInterest",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesByProjectsDetails",
      "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders": {
     "auth_ref": [
      "r258"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Decrease in noncontrolling interest balance from payment of dividends or other distributions by the non-wholly owned subsidiary or partially owned entity, included in the consolidation of the parent entity, to the noncontrolling interest holders.",
        "label": "Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders",
        "negatedLabel": "Distributions to noncontrolling interests",
        "negatedTerseLabel": "Distributions to noncontrolling interests"
       }
      }
     },
     "localname": "MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfStockholdersEquity",
      "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_MinorityInterestDecreaseFromRedemptions": {
     "auth_ref": [
      "r258",
      "r310",
      "r311"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Decrease in noncontrolling interest (for example, but not limited to, redeeming or purchasing the interests of noncontrolling shareholders, issuance of shares (interests) by the non-wholly owned subsidiary to the parent entity for other than cash, and a buyback of shares (interest) by the non-wholly owned subsidiary from the noncontrolling interests).",
        "label": "Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests",
        "negatedTerseLabel": "Sale of subsidiaries"
       }
      }
     },
     "localname": "MinorityInterestDecreaseFromRedemptions",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_MinorityInterestLineItems": {
     "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": "Noncontrolling Interest [Line Items]",
        "terseLabel": "Noncontrolling Interest [Line Items]"
       }
      }
     },
     "localname": "MinorityInterestLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesByProjectsDetails",
      "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_MinorityInterestTable": {
     "auth_ref": [
      "r67",
      "r103",
      "r306",
      "r319"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Schedule of noncontrolling interest disclosure which includes the name of the subsidiary, the ownership percentage held by the parent, the ownership percentage held by the noncontrolling owners, the amount of the noncontrolling interest, the location of this amount on the balance sheet (when not reported separately), an explanation of the increase or decrease in the amount of the noncontrolling interest, the noncontrolling interest share of the net Income or Loss of the subsidiary, the location of this amount on the income statement (when not reported separately), the nature of the noncontrolling interest such as background information and terms, the amount of the noncontrolling interest represented by preferred stock, a description of the preferred stock, and the dividend requirements of the preferred stock.",
        "label": "Noncontrolling Interest [Table]",
        "terseLabel": "Noncontrolling Interest [Table]"
       }
      }
     },
     "localname": "MinorityInterestTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesByProjectsDetails",
      "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_MovementInMinorityInterestRollForward": {
     "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": "Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]",
        "terseLabel": "Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]"
       }
      }
     },
     "localname": "MovementInMinorityInterestRollForward",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NetCashProvidedByUsedInFinancingActivities": {
     "auth_ref": [
      "r129"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 2.0,
       "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 financing activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInFinancingActivities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Net Cash Provided by (Used in) Financing Activities [Abstract]",
        "terseLabel": "Financing activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInFinancingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NetCashProvidedByUsedInInvestingActivities": {
     "auth_ref": [
      "r129"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 3.0,
       "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.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Net Cash Provided by (Used in) Investing Activities [Abstract]",
        "terseLabel": "Investing activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInInvestingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NetCashProvidedByUsedInOperatingActivities": {
     "auth_ref": [
      "r129",
      "r132",
      "r135"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 4.0,
       "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 operating activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInOperatingActivities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Net Cash Provided by (Used in) Operating Activities [Abstract]",
        "terseLabel": "Operating activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInOperatingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NetIncomeLoss": {
     "auth_ref": [
      "r86",
      "r89",
      "r97",
      "r135",
      "r165",
      "r455",
      "r474"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations": {
       "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",
        "terseLabel": "Net earnings (loss) attributable to controlling interest",
        "totalLabel": "Net income (loss) attributable to Pattern Energy"
       }
      }
     },
     "localname": "NetIncomeLoss",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.patternenergy.com/role/EarningsLossPerShareComputationsOfClassBasicAndDilutedEarningsLossPerShareDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetIncomeLossAttributableToNoncontrollingInterest": {
     "auth_ref": [
      "r86",
      "r89",
      "r314",
      "r326"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 2.0,
       "parentTag": "us-gaap_NetIncomeLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of Net Income (Loss) attributable to noncontrolling interest.",
        "label": "Net Income (Loss) Attributable to Noncontrolling Interest",
        "terseLabel": "Net loss attributable to noncontrolling interest",
        "verboseLabel": "Net loss"
       }
      }
     },
     "localname": "NetIncomeLossAttributableToNoncontrollingInterest",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic": {
     "auth_ref": [
      "r153",
      "r156"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/EarningsLossPerShareComputationsOfClassBasicAndDilutedEarningsLossPerShareDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted",
       "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": "Numerator for basic EPS - net income (loss) attributable to common stockholders"
       }
      }
     },
     "localname": "NetIncomeLossAvailableToCommonStockholdersBasic",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/EarningsLossPerShareComputationsOfClassBasicAndDilutedEarningsLossPerShareDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted": {
     "auth_ref": [
      "r156",
      "r157"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/EarningsLossPerShareComputationsOfClassBasicAndDilutedEarningsLossPerShareDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities, and addition from assumption of issuance of common shares for dilutive potential common shares; of income (loss) available to common shareholders.",
        "label": "Net Income (Loss) Available to Common Stockholders, Diluted",
        "totalLabel": "Numerator for diluted EPS - net income (loss) attributable to common stockholders"
       }
      }
     },
     "localname": "NetIncomeLossAvailableToCommonStockholdersDiluted",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/EarningsLossPerShareComputationsOfClassBasicAndDilutedEarningsLossPerShareDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "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.patternenergy.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable": {
     "auth_ref": [
      "r152",
      "r154"
     ],
     "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.patternenergy.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact.",
        "label": "New Accounting Pronouncements, Policy [Policy Text Block]",
        "terseLabel": "Recently Adopted and Issued Accounting Standards"
       }
      }
     },
     "localname": "NewAccountingPronouncementsPolicyPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_NoncontrollingInterestDecreaseFromDeconsolidation": {
     "auth_ref": [
      "r259",
      "r316"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The amount of the reduction or elimination during the period of a noncontrolling interest resulting from the parent's loss of control and deconsolidation of the entity in which one or more outside parties had a noncontrolling interest.",
        "label": "Noncontrolling Interest, Decrease from Deconsolidation",
        "negatedTerseLabel": "Sale of subsidiaries"
       }
      }
     },
     "localname": "NoncontrollingInterestDecreaseFromDeconsolidation",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NoncontrollingInterestIncreaseFromBusinessCombination": {
     "auth_ref": [
      "r259",
      "r294",
      "r316"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase in noncontrolling interest from a business combination.",
        "label": "Noncontrolling Interest, Increase from Business Combination",
        "terseLabel": "Acquisitions",
        "verboseLabel": "Acquisitions"
       }
      }
     },
     "localname": "NoncontrollingInterestIncreaseFromBusinessCombination",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfStockholdersEquity",
      "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NoncontrollingInterestMember": {
     "auth_ref": [
      "r305"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "This element represents that portion of equity (net assets) in a subsidiary not attributable, directly or indirectly, to the parent. A noncontrolling interest is sometimes called a minority interest.",
        "label": "Noncontrolling Interest [Member]",
        "terseLabel": "Noncontrolling Interest"
       }
      }
     },
     "localname": "NoncontrollingInterestMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_NondesignatedMember": {
     "auth_ref": [
      "r337"
     ],
     "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": "Not Designated as Hedging Instrument",
        "verboseLabel": "Undesignated Derivative Instruments"
       }
      }
     },
     "localname": "NondesignatedMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DerivativeInstrumentsAdditionalInformationDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsNotionalAmountsOfOutstandingDerivativeInstrumentsDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsScheduleOfDerivativeInstrumentsClassifiedAsAssetsLiabilitiesDetails",
      "http://www.patternenergy.com/role/DerivativeInstrumentsSummaryOfEffectsOfUndesignatedDerivativesOnConsolidatedStatementsOfOperationsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_NonoperatingGainsLosses": {
     "auth_ref": [
      "r108"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 4.0,
       "parentTag": "us-gaap_NonoperatingIncomeExpense",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The aggregate amount of gains or losses resulting from nonoperating activities (for example, interest and dividend revenue, property, plant and equipment impairment loss, and so forth).",
        "label": "Nonoperating Gains (Losses)",
        "terseLabel": "Net gain (loss) on transactions"
       }
      }
     },
     "localname": "NonoperatingGainsLosses",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NonoperatingIncomeExpense": {
     "auth_ref": [
      "r107"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 2.0,
       "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).",
        "label": "Nonoperating Income (Expense)",
        "totalLabel": "Total other expense"
       }
      }
     },
     "localname": "NonoperatingIncomeExpense",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NonoperatingIncomeExpenseAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Nonoperating Income (Expense) [Abstract]",
        "terseLabel": "Other income (expense):"
       }
      }
     },
     "localname": "NonoperatingIncomeExpenseAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NumberOfReportableSegments": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.",
        "label": "Number of Reportable Segments",
        "terseLabel": "Number of reportable segments"
       }
      }
     },
     "localname": "NumberOfReportableSegments",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SegmentReportingNarrativeDetails"
     ],
     "xbrltype": "integerItemType"
    },
    "us-gaap_OperatingExpenses": {
     "auth_ref": [],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 2.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.",
        "label": "Operating Expenses",
        "totalLabel": "Total operating expenses"
       }
      }
     },
     "localname": "OperatingExpenses",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingExpensesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Operating Expenses [Abstract]",
        "terseLabel": "Operating expenses:"
       }
      }
     },
     "localname": "OperatingExpensesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OperatingIncomeLoss": {
     "auth_ref": [],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 1.0,
       "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The net result for the period of deducting operating expenses from operating revenues.",
        "label": "Operating Income (Loss)",
        "totalLabel": "Operating income (loss)"
       }
      }
     },
     "localname": "OperatingIncomeLoss",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.patternenergy.com/role/SegmentReportingScheduleOfSegmentInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseCost": {
     "auth_ref": [
      "r405",
      "r413"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/LeasesScheduleOfLeaseCostSupplementalCashFlowAndOtherInformationDetails": {
       "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.patternenergy.com/role/LeasesScheduleOfLeaseCostSupplementalCashFlowAndOtherInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseLiability": {
     "auth_ref": [
      "r401"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/LeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetailsCalc2": {
       "order": 2.0,
       "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
       "weight": 1.0
      },
      "http://www.patternenergy.com/role/LeasesSupplementalBalanceSheetInformationDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease.",
        "label": "Operating Lease, Liability",
        "negatedTotalLabel": "Total operating lease liabilities",
        "terseLabel": "Operating lease liabilities",
        "verboseLabel": "Total"
       }
      }
     },
     "localname": "OperatingLeaseLiability",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails",
      "http://www.patternenergy.com/role/LeasesSupplementalBalanceSheetInformationDetails",
      "http://www.patternenergy.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseLiabilityCurrent": {
     "auth_ref": [
      "r401"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/LeasesSupplementalBalanceSheetInformationDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_OperatingLeaseLiability",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.",
        "label": "Operating Lease, Liability, Current",
        "negatedTerseLabel": "Operating lease liabilities, current"
       }
      }
     },
     "localname": "OperatingLeaseLiabilityCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesSupplementalBalanceSheetInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseLiabilityNoncurrent": {
     "auth_ref": [
      "r401"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/LeasesSupplementalBalanceSheetInformationDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_OperatingLeaseLiability",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.",
        "label": "Operating Lease, Liability, Noncurrent",
        "negatedTerseLabel": "Operating lease liabilities"
       }
      }
     },
     "localname": "OperatingLeaseLiabilityNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesSupplementalBalanceSheetInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeasePayments": {
     "auth_ref": [
      "r402",
      "r407"
     ],
     "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",
        "negatedLabel": "Operating cash flows from operating leases"
       }
      }
     },
     "localname": "OperatingLeasePayments",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesScheduleOfLeaseCostSupplementalCashFlowAndOtherInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseRightOfUseAsset": {
     "auth_ref": [
      "r400"
     ],
     "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 lease right-of-use assets",
        "verboseLabel": "Operating lease right-of-use assets"
       }
      }
     },
     "localname": "OperatingLeaseRightOfUseAsset",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesSupplementalBalanceSheetInformationDetails",
      "http://www.patternenergy.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent": {
     "auth_ref": [
      "r410",
      "r413"
     ],
     "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": "Weighted average discount rate"
       }
      }
     },
     "localname": "OperatingLeaseWeightedAverageDiscountRatePercent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesScheduleOfLeaseCostSupplementalCashFlowAndOtherInformationDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1": {
     "auth_ref": [
      "r409",
      "r413"
     ],
     "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": "Weighted average remaining lease term (years)"
       }
      }
     },
     "localname": "OperatingLeaseWeightedAverageRemainingLeaseTerm1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesScheduleOfLeaseCostSupplementalCashFlowAndOtherInformationDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_OperatingLeasesFutureMinimumPaymentsDue": {
     "auth_ref": [
      "r396",
      "r397"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/LeasesScheduleOfEstimatedFutureCommitmentsRelatedToOperatingLeasesAndLandAgreementsDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.",
        "label": "Operating Leases, Future Minimum Payments Due",
        "totalLabel": "Total"
       }
      }
     },
     "localname": "OperatingLeasesFutureMinimumPaymentsDue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesScheduleOfEstimatedFutureCommitmentsRelatedToOperatingLeasesAndLandAgreementsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent": {
     "auth_ref": [
      "r396",
      "r397"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/LeasesScheduleOfEstimatedFutureCommitmentsRelatedToOperatingLeasesAndLandAgreementsDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_OperatingLeasesFutureMinimumPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next 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": "Operating Leases, Future Minimum Payments Due, Next Twelve Months",
        "terseLabel": "2019"
       }
      }
     },
     "localname": "OperatingLeasesFutureMinimumPaymentsDueCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesScheduleOfEstimatedFutureCommitmentsRelatedToOperatingLeasesAndLandAgreementsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears": {
     "auth_ref": [
      "r396",
      "r397"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/LeasesScheduleOfEstimatedFutureCommitmentsRelatedToOperatingLeasesAndLandAgreementsDetails": {
       "order": 5.0,
       "parentTag": "us-gaap_OperatingLeasesFutureMinimumPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in 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": "Operating Leases, Future Minimum Payments, Due in Five Years",
        "terseLabel": "2023"
       }
      }
     },
     "localname": "OperatingLeasesFutureMinimumPaymentsDueInFiveYears",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesScheduleOfEstimatedFutureCommitmentsRelatedToOperatingLeasesAndLandAgreementsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears": {
     "auth_ref": [
      "r396",
      "r397"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/LeasesScheduleOfEstimatedFutureCommitmentsRelatedToOperatingLeasesAndLandAgreementsDetails": {
       "order": 4.0,
       "parentTag": "us-gaap_OperatingLeasesFutureMinimumPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in 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": "Operating Leases, Future Minimum Payments, Due in Four Years",
        "terseLabel": "2022"
       }
      }
     },
     "localname": "OperatingLeasesFutureMinimumPaymentsDueInFourYears",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesScheduleOfEstimatedFutureCommitmentsRelatedToOperatingLeasesAndLandAgreementsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears": {
     "auth_ref": [
      "r396",
      "r397"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/LeasesScheduleOfEstimatedFutureCommitmentsRelatedToOperatingLeasesAndLandAgreementsDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_OperatingLeasesFutureMinimumPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in 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": "Operating Leases, Future Minimum Payments, Due in Three Years",
        "terseLabel": "2021"
       }
      }
     },
     "localname": "OperatingLeasesFutureMinimumPaymentsDueInThreeYears",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesScheduleOfEstimatedFutureCommitmentsRelatedToOperatingLeasesAndLandAgreementsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears": {
     "auth_ref": [
      "r396",
      "r397"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/LeasesScheduleOfEstimatedFutureCommitmentsRelatedToOperatingLeasesAndLandAgreementsDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_OperatingLeasesFutureMinimumPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in 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": "Operating Leases, Future Minimum Payments, Due in Two Years",
        "terseLabel": "2020"
       }
      }
     },
     "localname": "OperatingLeasesFutureMinimumPaymentsDueInTwoYears",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesScheduleOfEstimatedFutureCommitmentsRelatedToOperatingLeasesAndLandAgreementsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter": {
     "auth_ref": [
      "r396",
      "r397"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/LeasesScheduleOfEstimatedFutureCommitmentsRelatedToOperatingLeasesAndLandAgreementsDetails": {
       "order": 6.0,
       "parentTag": "us-gaap_OperatingLeasesFutureMinimumPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due 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": "Operating Leases, Future Minimum Payments, Due Thereafter",
        "terseLabel": "Thereafter"
       }
      }
     },
     "localname": "OperatingLeasesFutureMinimumPaymentsDueThereafter",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesScheduleOfEstimatedFutureCommitmentsRelatedToOperatingLeasesAndLandAgreementsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingSegmentsMember": {
     "auth_ref": [
      "r177",
      "r188"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Identifies 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": "Operating Segments [Member]",
        "terseLabel": "Operating Segments"
       }
      }
     },
     "localname": "OperatingSegmentsMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails",
      "http://www.patternenergy.com/role/SegmentReportingScheduleOfSegmentInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "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": [
      "r19",
      "r331"
     ],
     "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": "Organization"
       }
      }
     },
     "localname": "OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/Organization"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_OtherAssetsCurrent": {
     "auth_ref": [
      "r68"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 7.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of current assets classified as other.",
        "label": "Other Assets, Current",
        "netLabel": "Other current assets",
        "verboseLabel": "Other current assets (Note 7)"
       }
      }
     },
     "localname": "OtherAssetsCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherAssetsNoncurrent": {
     "auth_ref": [
      "r53"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 9.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of noncurrent assets classified as other.",
        "label": "Other Assets, Noncurrent",
        "terseLabel": "Other assets (Note 7)",
        "verboseLabel": "Other assets"
       }
      }
     },
     "localname": "OtherAssetsNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherCommitmentsLineItems": {
     "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": "Other Commitments [Line Items]",
        "terseLabel": "Other Commitments [Line Items]"
       }
      }
     },
     "localname": "OtherCommitmentsLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OtherCommitmentsTable": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of information about obligations resulting from other commitments.",
        "label": "Other Commitments [Table]",
        "terseLabel": "Other Commitments [Table]"
       }
      }
     },
     "localname": "OtherCommitmentsTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPeriodIncreaseDecreaseAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax [Abstract]",
        "terseLabel": "Cash flow hedge activity:"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPeriodIncreaseDecreaseAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax": {
     "auth_ref": [
      "r77",
      "r80",
      "r385",
      "r386",
      "r387",
      "r388"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss": {
       "order": 1.0,
       "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTax",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after tax, before reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.",
        "label": "Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax",
        "terseLabel": "Change in foreign currency translation, net of zero tax impact for all periods presented"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax": {
     "auth_ref": [
      "r83",
      "r92"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/AccumulatedOtherComprehensiveLossSummaryOfAccumulatedOtherComprehensiveLossDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTax",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after tax, before reclassification adjustments of other comprehensive income (loss).",
        "label": "Other Comprehensive Income (Loss), before Reclassifications, Net of Tax",
        "terseLabel": "Other comprehensive income (loss) before reclassifications"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/AccumulatedOtherComprehensiveLossSummaryOfAccumulatedOtherComprehensiveLossDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax": {
     "auth_ref": [
      "r78",
      "r80"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss": {
       "order": 3.0,
       "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTax",
       "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",
        "totalLabel": "Total change in cash flow hedge activity"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax": {
     "auth_ref": [
      "r78",
      "r80"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss": {
       "order": 1.0,
       "parentTag": "us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after tax and before 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), before Reclassification, after Tax",
        "terseLabel": "Change in unrealized gain (loss) on cash flow hedges, net of tax impact of $(1), $(2), $(7) and $(1), respectively"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax": {
     "auth_ref": [
      "r78",
      "r80",
      "r341",
      "r345",
      "r360"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, before tax and reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness.",
        "label": "Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax",
        "terseLabel": "Gains (losses) recognized in accumulated OCI"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DerivativeInstrumentsSummaryOfEffectsOfCashFlowHedgesOnConsolidatedStatementsOfOperationsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax": {
     "auth_ref": [
      "r81"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, before reclassification, of tax expense (benefit) for gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.",
        "label": "Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax",
        "negatedTerseLabel": "Cash flow hedges, tax impact"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfComprehensiveIncomeLossParenthetical"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax": {
     "auth_ref": [
      "r80",
      "r84"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss": {
       "order": 2.0,
       "parentTag": "us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.",
        "label": "Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax",
        "negatedLabel": "Reclassifications to net loss, net of tax impact of less than $1 for all periods presented"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax": {
     "auth_ref": [
      "r80",
      "r84",
      "r346"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, before tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.",
        "label": "Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax",
        "terseLabel": "Gains (losses) reclassified from accumulated OCI"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DerivativeInstrumentsSummaryOfEffectsOfCashFlowHedgesOnConsolidatedStatementsOfOperationsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax": {
     "auth_ref": [
      "r81"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of tax expense (benefit) for reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.",
        "label": "Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax",
        "negatedLabel": "Reclassifications to net loss, tax impact (less than)"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfComprehensiveIncomeLossParenthetical"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax": {
     "auth_ref": [
      "r75",
      "r81"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of tax expense (benefit), after reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.",
        "label": "Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax",
        "negatedTerseLabel": "Foreign currency translation, tax impact"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfComprehensiveIncomeLossParenthetical"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossNetOfTax": {
     "auth_ref": [
      "r87",
      "r90",
      "r92",
      "r252"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/AccumulatedOtherComprehensiveLossSummaryOfAccumulatedOtherComprehensiveLossDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      },
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss": {
       "order": 2.0,
       "parentTag": "us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after tax and reclassification adjustments of other comprehensive income (loss).",
        "label": "Other Comprehensive Income (Loss), Net of Tax",
        "totalLabel": "Total other comprehensive gain (loss), net of tax",
        "verboseLabel": "Other comprehensive loss, net of tax"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/AccumulatedOtherComprehensiveLossSummaryOfAccumulatedOtherComprehensiveLossDetails",
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss",
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Other Comprehensive Income (Loss), Net of Tax [Abstract]",
        "terseLabel": "Other comprehensive income (loss):"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest": {
     "auth_ref": [
      "r87",
      "r90",
      "r307",
      "r308",
      "r317"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after tax of other comprehensive income (loss) attributable to noncontrolling interests.",
        "label": "Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest",
        "negatedLabel": "Other comprehensive loss, net of tax"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossTaxPortionAttributableToNoncontrollingInterest": {
     "auth_ref": [
      "r307",
      "r308",
      "r317"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of tax expense (benefit) allocated to other comprehensive income (loss) attributable to noncontrolling interest.",
        "label": "Other Comprehensive Income (Loss), Tax, Portion Attributable to Noncontrolling Interest",
        "negatedTerseLabel": "Comprehensive loss attributable to noncontrolling interests, tax impact (less than)"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossTaxPortionAttributableToNoncontrollingInterest",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfComprehensiveIncomeLossParenthetical"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax": {
     "auth_ref": [
      "r78",
      "r80",
      "r363"
     ],
     "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",
        "terseLabel": "Gains (losses) recognized in accumulated OCI"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DerivativeInstrumentsSummaryOfEffectsOfCashFlowHedgesOnConsolidatedStatementsOfOperationsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherCurrentAssetsMember": {
     "auth_ref": [
      "r339",
      "r358"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Primary financial statement caption encompassing other current assets.",
        "label": "Other Current Assets [Member]",
        "terseLabel": "Other current assets"
       }
      }
     },
     "localname": "OtherCurrentAssetsMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyReceivableAndPayableDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_OtherCurrentLiabilitiesMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Primary financial statement caption encompassing other current liabilities.",
        "label": "Other Current Liabilities [Member]",
        "terseLabel": "Other current liabilities"
       }
      }
     },
     "localname": "OtherCurrentLiabilitiesMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyReceivableAndPayableDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_OtherLiabilitiesCurrent": {
     "auth_ref": [
      "r27",
      "r28",
      "r59"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 8.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer.",
        "label": "Other Liabilities, Current",
        "terseLabel": "Other current liabilities (Note 7)",
        "verboseLabel": "Other current liabilities"
       }
      }
     },
     "localname": "OtherLiabilitiesCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherLiabilitiesNoncurrent": {
     "auth_ref": [
      "r63"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 7.0,
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.",
        "label": "Other Liabilities, Noncurrent",
        "terseLabel": "Other long-term liabilities (Note 7)",
        "verboseLabel": "Other long-term liabilities"
       }
      }
     },
     "localname": "OtherLiabilitiesNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherNonoperatingIncomeExpense": {
     "auth_ref": [
      "r110"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 5.0,
       "parentTag": "us-gaap_NonoperatingIncomeExpense",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of income (expense) related to nonoperating activities, classified as other.",
        "label": "Other Nonoperating Income (Expense)",
        "terseLabel": "Other expense, net"
       }
      }
     },
     "localname": "OtherNonoperatingIncomeExpense",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ParentMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Portion of equity, or net assets, in the consolidated entity attributable, directly or indirectly, to the parent. Excludes noncontrolling interests.",
        "label": "Parent [Member]",
        "terseLabel": "Total"
       }
      }
     },
     "localname": "ParentMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities": {
     "auth_ref": [
      "r122"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 9.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash outflow, not made soon after acquisition date of business combination, to settle contingent consideration liability up to amount recognized at acquisition date, including, but not limited to, measurement period adjustment and less amount paid soon after acquisition date.",
        "label": "Payment for Contingent Consideration Liability, Financing Activities",
        "negatedLabel": "Cash paid for contingent consideration",
        "terseLabel": "Cash paid for contingent consideration"
       }
      }
     },
     "localname": "PaymentForContingentConsiderationLiabilityFinancingActivities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/CommitmentsAndContingenciesNarrativeDetails",
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentForContingentConsiderationLiabilityOperatingActivities": {
     "auth_ref": [
      "r125"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash outflow, not made soon after acquisition date of business combination, to settle contingent consideration liability exceeding amount recognized at acquisition date. Includes, but is not limited to, measurement period adjustment and less amount paid soon after acquisition date.",
        "label": "Payment for Contingent Consideration Liability, Operating Activities",
        "terseLabel": "Contingent consideration paid"
       }
      }
     },
     "localname": "PaymentForContingentConsiderationLiabilityOperatingActivities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueMeasurementsNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsForDerivativeInstrumentFinancingActivities": {
     "auth_ref": [
      "r121",
      "r128"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 10.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash outflow for derivative instruments during the period, which are classified as financing activities, excluding those designated as hedging instruments.",
        "label": "Payments for Derivative Instrument, Financing Activities",
        "negatedLabel": "Payment for termination of designated derivatives"
       }
      }
     },
     "localname": "PaymentsForDerivativeInstrumentFinancingActivities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsForProceedsFromOtherInvestingActivities": {
     "auth_ref": [
      "r113",
      "r116",
      "r150"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 4.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash (inflow) outflow from investing activities classified as other.",
        "label": "Payments for (Proceeds from) Other Investing Activities",
        "negatedLabel": "Other assets"
       }
      }
     },
     "localname": "PaymentsForProceedsFromOtherInvestingActivities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsOfDividends": {
     "auth_ref": [
      "r119"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 1.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests.",
        "label": "Payments of Dividends",
        "negatedTerseLabel": "Dividends paid"
       }
      }
     },
     "localname": "PaymentsOfDividends",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsOfFinancingCosts": {
     "auth_ref": [
      "r123"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 4.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash outflow for loan and debt issuance costs.",
        "label": "Payments of Financing Costs",
        "negatedLabel": "Payment for financing fees"
       }
      }
     },
     "localname": "PaymentsOfFinancingCosts",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsToAcquireBusinessesGross": {
     "auth_ref": [
      "r114",
      "r301"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.",
        "label": "Payments to Acquire Businesses, Gross",
        "terseLabel": "Cash consideration net of acquired cash"
       }
      }
     },
     "localname": "PaymentsToAcquireBusinessesGross",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyPurchaseAgreementsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired": {
     "auth_ref": [
      "r114"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 1.0,
       "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",
        "negatedTerseLabel": "Cash paid for acquisitions and investments, net of cash and restricted cash acquired"
       }
      }
     },
     "localname": "PaymentsToAcquireBusinessesNetOfCashAcquired",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsToAcquireEquityMethodInvestments": {
     "auth_ref": [
      "r114"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.",
        "label": "Payments to Acquire Equity Method Investments",
        "terseLabel": "Amount paid to acquire equity method investment"
       }
      }
     },
     "localname": "PaymentsToAcquireEquityMethodInvestments",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsToAcquireProductiveAssets": {
     "auth_ref": [
      "r115"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 2.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets.",
        "label": "Payments to Acquire Productive Assets",
        "negatedTerseLabel": "Capital expenditures"
       }
      }
     },
     "localname": "PaymentsToAcquireProductiveAssets",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.patternenergy.com/role/SegmentReportingScheduleOfSegmentInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsToMinorityShareholders": {
     "auth_ref": [
      "r123"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 3.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash outflow to a noncontrolling interest. Includes, but not limited to, reduction of noncontrolling interest ownership. Excludes dividends paid to the noncontrolling interest.",
        "label": "Payments to Noncontrolling Interests",
        "negatedTerseLabel": "Capital distributions - noncontrolling interest"
       }
      }
     },
     "localname": "PaymentsToMinorityShareholders",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PreferredStockDividendRatePercentage": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The percentage rate used to calculate dividend payments on preferred stock.",
        "label": "Preferred Stock, Dividend Rate, Percentage",
        "terseLabel": "Preferred stock, dividend rate"
       }
      }
     },
     "localname": "PreferredStockDividendRatePercentage",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_PreferredStockLiquidationPreference": {
     "auth_ref": [
      "r40",
      "r141",
      "r146",
      "r253",
      "r254"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The per share liquidation preference (or restrictions) of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share.",
        "label": "Preferred Stock, Liquidation Preference Per Share",
        "terseLabel": "Preferred stock, liquidation preference per share"
       }
      }
     },
     "localname": "PreferredStockLiquidationPreference",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_PreferredStockSharesIssued": {
     "auth_ref": [
      "r40"
     ],
     "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.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_PreferredStockValue": {
     "auth_ref": [
      "r40"
     ],
     "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, value, issued"
       }
      }
     },
     "localname": "PreferredStockValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PrepaidExpenseCurrent": {
     "auth_ref": [
      "r22",
      "r24",
      "r213"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 6.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of asset related to consideration paid in advance for costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer.",
        "label": "Prepaid Expense, Current",
        "terseLabel": "Prepaid expenses (Note 7)",
        "verboseLabel": "Prepaid expenses"
       }
      }
     },
     "localname": "PrepaidExpenseCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromDivestitureOfBusinesses": {
     "auth_ref": [
      "r112"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.",
        "label": "Proceeds from Divestiture of Businesses",
        "terseLabel": "Cash proceeds"
       }
      }
     },
     "localname": "ProceedsFromDivestitureOfBusinesses",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DivestedOperationsNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital": {
     "auth_ref": [
      "r112",
      "r127"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 3.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of distribution received from equity method investee for return of investment, classified as investing activities. Excludes distribution for return on investment, classified as operating activities.",
        "label": "Proceeds from Equity Method Investment, Distribution, Return of Capital",
        "terseLabel": "Distributions from unconsolidated investments"
       }
      }
     },
     "localname": "ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromIssuanceOfLongTermDebt": {
     "auth_ref": [
      "r117"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 5.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.",
        "label": "Proceeds from Issuance of Long-term Debt",
        "verboseLabel": "Proceeds from long-term debt and other"
       }
      }
     },
     "localname": "ProceedsFromIssuanceOfLongTermDebt",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromMinorityShareholders": {
     "auth_ref": [
      "r118"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 2.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash inflow from a noncontrolling interest. Includes, but is not limited to, purchase of additional shares or other increase in noncontrolling interest ownership.",
        "label": "Proceeds from Noncontrolling Interests",
        "terseLabel": "Capital contributions - noncontrolling interest"
       }
      }
     },
     "localname": "ProceedsFromMinorityShareholders",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromPaymentsForOtherFinancingActivities": {
     "auth_ref": [
      "r118",
      "r123",
      "r150"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 11.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash inflow (outflow) from financing activities classified as other.",
        "label": "Proceeds from (Payments for) Other Financing Activities",
        "terseLabel": "Other financing activities"
       }
      }
     },
     "localname": "ProceedsFromPaymentsForOtherFinancingActivities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromRepaymentsOfDebt": {
     "auth_ref": [
      "r150"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The net cash inflow or outflow in aggregate debt due to repayments and proceeds from additional borrowings.",
        "label": "Proceeds from (Repayments of) Debt",
        "terseLabel": "Net proceeds received"
       }
      }
     },
     "localname": "ProceedsFromRepaymentsOfDebt",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments": {
     "auth_ref": [
      "r113"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 5.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash inflow associated with the sale, maturity and collection of all investments such as debt, security and so forth during the period.",
        "label": "Proceeds from Sale, Maturity and Collection of Investments",
        "terseLabel": "Proceeds from sale of investments, net of cash and restricted cash distributed"
       }
      }
     },
     "localname": "ProceedsFromSaleMaturityAndCollectionsOfInvestments",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromShortTermDebt": {
     "auth_ref": [
      "r117"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 7.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash inflow from a borrowing having initial term of repayment within one year or the normal operating cycle, if longer.",
        "label": "Proceeds from Short-term Debt",
        "terseLabel": "Proceeds from short-term debt"
       }
      }
     },
     "localname": "ProceedsFromShortTermDebt",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProfitLoss": {
     "auth_ref": [
      "r86",
      "r89",
      "r126",
      "r181",
      "r189",
      "r307",
      "r313",
      "r315",
      "r326",
      "r327"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 1.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      },
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss": {
       "order": 1.0,
       "parentTag": "us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest",
       "weight": 1.0
      },
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 1.0,
       "parentTag": "us-gaap_NetIncomeLoss",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.",
        "label": "Net Income (Loss), Including Portion Attributable to Noncontrolling Interest",
        "terseLabel": "Net loss",
        "totalLabel": "Net loss",
        "verboseLabel": "Net income (loss)"
       }
      }
     },
     "localname": "ProfitLoss",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss",
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfStockholdersEquity",
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails",
      "http://www.patternenergy.com/role/SegmentReportingScheduleOfSegmentInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Property, Plant and Equipment [Abstract]"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentByTypeAxis": {
     "auth_ref": [
      "r52",
      "r222"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of long-lived, physical assets used to produce goods and services and not intended for resale.",
        "label": "Property, Plant and Equipment, Type [Axis]",
        "terseLabel": "Property, Plant and Equipment, Type [Axis]"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentByTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/PropertyPlantAndEquipmentScheduleOfPropertyPlantAndEquipmentDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock": {
     "auth_ref": [
      "r227"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures.",
        "label": "Property, Plant and Equipment Disclosure [Text Block]",
        "terseLabel": "Property, Plant and Equipment"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/PropertyPlantAndEquipment"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentGross": {
     "auth_ref": [
      "r51",
      "r220"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/PropertyPlantAndEquipmentScheduleOfPropertyPlantAndEquipmentDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_PropertyPlantAndEquipmentNet",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business 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, Gross",
        "terseLabel": "Property, plant and equipment, gross"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentGross",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/PropertyPlantAndEquipmentScheduleOfPropertyPlantAndEquipmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentLineItems": {
     "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": "Property, Plant and Equipment [Line Items]",
        "terseLabel": "Property, Plant and Equipment [Line Items]"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/PropertyPlantAndEquipmentScheduleOfPropertyPlantAndEquipmentDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentNet": {
     "auth_ref": [
      "r32",
      "r33",
      "r222",
      "r469"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 3.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      },
      "http://www.patternenergy.com/role/PropertyPlantAndEquipmentScheduleOfPropertyPlantAndEquipmentDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "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": "Property, plant and equipment, net",
        "totalLabel": "Property, plant and equipment, net",
        "verboseLabel": "Property, plant and equipment, net (Note 7)"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/PropertyPlantAndEquipmentScheduleOfPropertyPlantAndEquipmentDetails",
      "http://www.patternenergy.com/role/SegmentReportingScheduleOfSegmentInformationDetails",
      "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentTextBlock": {
     "auth_ref": [
      "r32",
      "r222"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.",
        "label": "Property, Plant and Equipment [Table Text Block]",
        "terseLabel": "Schedule of Property, Plant and Equipment"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/PropertyPlantAndEquipmentTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentTypeDomain": {
     "auth_ref": [
      "r32",
      "r220"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Listing of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.",
        "label": "Property, Plant and Equipment, Type [Domain]",
        "terseLabel": "Property, Plant and Equipment, Type [Domain]"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentTypeDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/PropertyPlantAndEquipmentScheduleOfPropertyPlantAndEquipmentDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax": {
     "auth_ref": [
      "r83",
      "r85",
      "r92"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/AccumulatedOtherComprehensiveLossSummaryOfAccumulatedOtherComprehensiveLossDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTax",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after tax of reclassification adjustments of other comprehensive income (loss).",
        "label": "Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax",
        "negatedLabel": "Amounts reclassified from accumulated other comprehensive loss"
       }
      }
     },
     "localname": "ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/AccumulatedOtherComprehensiveLossSummaryOfAccumulatedOtherComprehensiveLossDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract": {
     "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 Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]",
        "terseLabel": "AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]"
       }
      }
     },
     "localname": "ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/AccumulatedOtherComprehensiveLossSummaryOfAccumulatedOtherComprehensiveLossDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ReconciliationOfOperatingProfitLossFromSegmentsToConsolidatedTextBlock": {
     "auth_ref": [
      "r184",
      "r186"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the reconciliation of profit (loss) from reportable segments to the consolidated income (loss) before income tax expense (benefit) and discontinued operations. Includes, but is not limited to, reconciliation after income tax if income tax is allocated to the reportable segment.",
        "label": "Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]",
        "terseLabel": "Reconciliation of Operating Profit (Loss) from Segments to Consolidated"
       }
      }
     },
     "localname": "ReconciliationOfOperatingProfitLossFromSegmentsToConsolidatedTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SegmentReportingTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_RelatedPartyDomain": {
     "auth_ref": [
      "r422"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Related parties include affiliates; other entities for which investments are accounted for by the equity method by the entity; trusts for benefit of employees; and principal owners, management, and members of immediate families. It also may include other parties with which the entity may control or can significantly influence the management or operating policies of the other to an extent that one of the transacting parties might be prevented from fully pursuing its own separate interests.",
        "label": "Related Party [Domain]",
        "terseLabel": "Related Party [Domain]"
       }
      }
     },
     "localname": "RelatedPartyDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/RelatedPartyTransactionsNarrativeDetails",
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails",
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RelatedPartyTransactionAxis": {
     "auth_ref": [
      "r276",
      "r417",
      "r418"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of related party transaction.",
        "label": "Related Party Transaction [Axis]",
        "terseLabel": "Related Party Transaction [Axis]"
       }
      }
     },
     "localname": "RelatedPartyTransactionAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/RelatedPartyTransactionsNarrativeDetails",
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_RelatedPartyTransactionDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Transaction between related party.",
        "label": "Related Party Transaction [Domain]",
        "terseLabel": "Related Party Transaction [Domain]"
       }
      }
     },
     "localname": "RelatedPartyTransactionDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/RelatedPartyTransactionsNarrativeDetails",
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RelatedPartyTransactionLineItems": {
     "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": "Related Party Transaction [Line Items]",
        "terseLabel": "Related Party Transaction [Line Items]"
       }
      }
     },
     "localname": "RelatedPartyTransactionLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/RelatedPartyTransactionsNarrativeDetails",
      "http://www.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyPurchaseAgreementsDetails",
      "http://www.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyReceivableAndPayableDetails",
      "http://www.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyTransactionRevenueAndExpensesIncludedInStatementsOfOperationsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.",
        "label": "Related Party Transaction, Purchases from Related Party",
        "terseLabel": "Purchases from related party"
       }
      }
     },
     "localname": "RelatedPartyTransactionPurchasesFromRelatedParty",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/RelatedPartyTransactionsNarrativeDetails",
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty": {
     "auth_ref": [],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 3.0,
       "parentTag": "us-gaap_OperatingExpenses",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of selling, general and administrative expenses resulting from transactions, excluding transactions that are eliminated in consolidated or combined financial statements, with related party.",
        "label": "Related Party Transaction, Selling, General and Administrative Expenses from Transactions with Related Party",
        "negatedTerseLabel": "MSA costs",
        "terseLabel": "Related party general and administrative"
       }
      }
     },
     "localname": "RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyTransactionRevenueAndExpensesIncludedInStatementsOfOperationsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RelatedPartyTransactionsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Related Party Transactions [Abstract]"
       }
      }
     },
     "localname": "RelatedPartyTransactionsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_RelatedPartyTransactionsByRelatedPartyAxis": {
     "auth_ref": [
      "r276",
      "r417",
      "r418",
      "r430",
      "r431",
      "r432",
      "r433",
      "r434",
      "r435",
      "r436",
      "r437",
      "r438",
      "r439",
      "r440",
      "r441"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of related party. Related parties include, but not limited to, affiliates; other entities for which investments are accounted for by the equity method by the entity; trusts for benefit of employees; and principal owners, management, and members of immediate families. It also may include other parties with which the entity may control or can significantly influence the management or operating policies of the other to an extent that one of the transacting parties might be prevented from fully pursuing its own separate interests.",
        "label": "Related Party [Axis]",
        "terseLabel": "Related Party [Axis]"
       }
      }
     },
     "localname": "RelatedPartyTransactionsByRelatedPartyAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/RelatedPartyTransactionsNarrativeDetails",
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails",
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_RelatedPartyTransactionsDisclosureTextBlock": {
     "auth_ref": [
      "r422"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.",
        "label": "Related Party Transactions Disclosure [Text Block]",
        "terseLabel": "Related Party Transactions"
       }
      }
     },
     "localname": "RelatedPartyTransactionsDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/RelatedPartyTransactions"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_RepaymentsOfLongTermDebt": {
     "auth_ref": [
      "r120"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 6.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.",
        "label": "Repayments of Long-term Debt",
        "negatedLabel": "Repayment of long-term debt and other"
       }
      }
     },
     "localname": "RepaymentsOfLongTermDebt",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RepaymentsOfShortTermDebt": {
     "auth_ref": [
      "r120"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 8.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash outflow for a borrowing having initial term of repayment within one year or the normal operating cycle, if longer.",
        "label": "Repayments of Short-term Debt",
        "negatedLabel": "Repayment of short-term debt"
       }
      }
     },
     "localname": "RepaymentsOfShortTermDebt",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RestrictedCashCurrent": {
     "auth_ref": [
      "r20",
      "r31",
      "r139"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 2.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      },
      "http://www.patternenergy.com/role/SummaryOfSignificantAccountingPoliciesReconciliationOfCashCashEquivalentAndRestrictedCashAsPresentedInScfDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash restricted as to withdrawal or usage, classified as current. 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.",
        "label": "Restricted Cash, Current",
        "netLabel": "Restricted cash - current",
        "terseLabel": "Restricted cash (Note 7)",
        "verboseLabel": "Restricted cash"
       }
      }
     },
     "localname": "RestrictedCashCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/SummaryOfSignificantAccountingPoliciesReconciliationOfCashCashEquivalentAndRestrictedCashAsPresentedInScfDetails",
      "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RestrictedCashNoncurrent": {
     "auth_ref": [
      "r26",
      "r34",
      "r139",
      "r483"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 2.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      },
      "http://www.patternenergy.com/role/SummaryOfSignificantAccountingPoliciesReconciliationOfCashCashEquivalentAndRestrictedCashAsPresentedInScfDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash restricted as to withdrawal or usage, classified as noncurrent. 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.",
        "label": "Restricted Cash, Noncurrent",
        "terseLabel": "Restricted cash (Note 7)",
        "verboseLabel": "Restricted cash"
       }
      }
     },
     "localname": "RestrictedCashNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/SummaryOfSignificantAccountingPoliciesReconciliationOfCashCashEquivalentAndRestrictedCashAsPresentedInScfDetails",
      "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RestrictedStockMember": {
     "auth_ref": [
      "r164"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Stock including a provision that prohibits sale or substantive sale of an equity instrument for a specified period of time or until specified performance conditions are met.",
        "label": "Restricted Stock [Member]",
        "terseLabel": "Restricted stock awards"
       }
      }
     },
     "localname": "RestrictedStockMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/EarningsLossPerShareComputationsOfClassBasicAndDilutedEarningsLossPerShareDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RestrictedStockUnitsRSUMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Share instrument which is convertible to stock or an equivalent amount of cash, after a specified period of time or when specified performance conditions are met.",
        "label": "Restricted Stock Units (RSUs) [Member]",
        "terseLabel": "Restricted stock units"
       }
      }
     },
     "localname": "RestrictedStockUnitsRSUMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/EarningsLossPerShareComputationsOfClassBasicAndDilutedEarningsLossPerShareDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RetainedEarningsAccumulatedDeficit": {
     "auth_ref": [
      "r44",
      "r258",
      "r466"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 3.0,
       "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": "Accumulated loss"
       }
      }
     },
     "localname": "RetainedEarningsAccumulatedDeficit",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets"
     ],
     "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": "Accumulated Income (Loss)",
        "verboseLabel": "Accumulated Loss"
       }
      }
     },
     "localname": "RetainedEarningsMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfStockholdersEquity",
      "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RevenueFromContractWithCustomerAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Revenue from Contract with Customer [Abstract]"
       }
      }
     },
     "localname": "RevenueFromContractWithCustomerAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax": {
     "auth_ref": [
      "r267",
      "r268"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, excluding 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, Excluding Assessed Tax",
        "terseLabel": "Total revenue from contracts with customers"
       }
      }
     },
     "localname": "RevenueFromContractWithCustomerExcludingAssessedTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/RevenueDisaggregationOfRevenueDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RevenueFromContractWithCustomerTextBlock": {
     "auth_ref": [
      "r273"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.",
        "label": "Revenue from Contract with Customer [Text Block]",
        "terseLabel": "Revenue"
       }
      }
     },
     "localname": "RevenueFromContractWithCustomerTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/Revenue"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_RevenueFromRelatedParties": {
     "auth_ref": [
      "r101",
      "r481"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.",
        "label": "Revenue from Related Parties",
        "terseLabel": "Management fees"
       }
      }
     },
     "localname": "RevenueFromRelatedParties",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyTransactionRevenueAndExpensesIncludedInStatementsOfOperationsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RevenueRemainingPerformanceObligation": {
     "auth_ref": [
      "r265"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of transaction price allocated to performance obligation that has not been recognized as revenue.",
        "label": "Revenue, Remaining Performance Obligation, Amount",
        "terseLabel": "Remaining performance obligation"
       }
      }
     },
     "localname": "RevenueRemainingPerformanceObligation",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/RevenuePerformanceObligationsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems": {
     "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": "Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]",
        "terseLabel": "Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]"
       }
      }
     },
     "localname": "RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/RevenuePerformanceObligationsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1": {
     "auth_ref": [
      "r266"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Period in which remaining performance obligation is expected to be recognized as revenue, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.",
        "label": "Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period",
        "terseLabel": "Remaining performance obligation, period"
       }
      }
     },
     "localname": "RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/RevenuePerformanceObligationsDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis": {
     "auth_ref": [
      "r266"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Start date of time band for expected timing of satisfaction of remaining performance obligation, in CCYY-MM-DD format.",
        "label": "Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]",
        "terseLabel": "Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]"
       }
      }
     },
     "localname": "RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/RevenuePerformanceObligationsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of information about expected timing for satisfying remaining performance obligation.",
        "label": "Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table]",
        "terseLabel": "Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table]"
       }
      }
     },
     "localname": "RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/RevenuePerformanceObligationsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTableTextBlock": {
     "auth_ref": [
      "r266"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of expected timing for satisfying remaining performance obligation.",
        "label": "Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]",
        "terseLabel": "Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction"
       }
      }
     },
     "localname": "RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/RevenueTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_Revenues": {
     "auth_ref": [
      "r94",
      "r176",
      "r177",
      "r187"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 2.0,
       "parentTag": "us-gaap_GrossProfit",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).",
        "label": "Revenues",
        "terseLabel": "Total revenue",
        "verboseLabel": "Total revenue"
       }
      }
     },
     "localname": "Revenues",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.patternenergy.com/role/RevenueDisaggregationOfRevenueDetails",
      "http://www.patternenergy.com/role/SegmentReportingScheduleOfSegmentInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RevenuesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Revenues [Abstract]",
        "terseLabel": "Revenue:"
       }
      }
     },
     "localname": "RevenuesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_RevolvingCreditFacilityMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Arrangement in which loan proceeds can continuously be obtained following repayments, but the total amount borrowed cannot exceed a specified maximum amount.",
        "label": "Revolving Credit Facility [Member]",
        "terseLabel": "Revolving Credit Facility"
       }
      }
     },
     "localname": "RevolvingCreditFacilityMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability": {
     "auth_ref": [
      "r408",
      "r413"
     ],
     "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": "Right of use assets obtained in exchange for new operating lease obligations"
       }
      }
     },
     "localname": "RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesScheduleOfLeaseCostSupplementalCashFlowAndOtherInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock": {
     "auth_ref": [
      "r83"
     ],
     "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": "Summary of Accumulated Other Comprehensive Loss"
       }
      }
     },
     "localname": "ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/AccumulatedOtherComprehensiveLossTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable": {
     "auth_ref": [
      "r290",
      "r291"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Schedule reflecting each material business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities.",
        "label": "Schedule of Business Acquisitions, by Acquisition [Table]",
        "terseLabel": "Schedule of Business Acquisitions, by Acquisition [Table]"
       }
      }
     },
     "localname": "ScheduleOfBusinessAcquisitionsByAcquisitionTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/AcquisitionsNarrativeDetails",
      "http://www.patternenergy.com/role/AcquisitionsScheduleOfProformaDataDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the components of cash, cash equivalents, and investments.",
        "label": "Cash, Cash Equivalents and Investments [Table Text Block]",
        "terseLabel": "Reconciliation of Cash and Cash Equivalents and Restricted Cash"
       }
      }
     },
     "localname": "ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SummaryOfSignificantAccountingPoliciesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfDebtInstrumentsTextBlock": {
     "auth_ref": [
      "r62",
      "r147",
      "r253",
      "r255",
      "r256",
      "r257",
      "r390",
      "r391",
      "r394",
      "r459"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.",
        "label": "Schedule of Long-term Debt Instruments [Table Text Block]",
        "terseLabel": "Schedule of Long Term Debt"
       }
      }
     },
     "localname": "ScheduleOfDebtInstrumentsTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock": {
     "auth_ref": [
      "r340",
      "r349",
      "r354"
     ],
     "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": "Derivative Instruments, Gain (Loss)"
       }
      }
     },
     "localname": "ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DerivativeInstrumentsTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock": {
     "auth_ref": [
      "r344"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position.",
        "label": "Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]",
        "terseLabel": "Schedule of Derivative Instruments Classified as Assets (Liabilities)"
       }
      }
     },
     "localname": "ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DerivativeInstrumentsTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock": {
     "auth_ref": [
      "r165"
     ],
     "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": "Computations of Class A Basic and Diluted Earnings (Loss) per Share"
       }
      }
     },
     "localname": "ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/EarningsLossPerShareTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable": {
     "auth_ref": [
      "r158",
      "r160",
      "r163",
      "r166"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The table contains disclosure pertaining to an entity's basic earnings per share.",
        "label": "Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table]",
        "terseLabel": "Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table]"
       }
      }
     },
     "localname": "ScheduleOfEarningsPerShareBasicByCommonClassTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/EarningsLossPerShareComputationsOfClassBasicAndDilutedEarningsLossPerShareDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfEquityMethodInvestmentsLineItems": {
     "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 Equity Method Investments [Line Items]",
        "terseLabel": "Schedule of Equity Method Investments [Line Items]"
       }
      }
     },
     "localname": "ScheduleOfEquityMethodInvestmentsLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsNarrativeDetails",
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsScheduleOfProjectsAccountedUnderEquityMethodOfAccountingDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfEquityMethodInvestmentsTable": {
     "auth_ref": [
      "r200"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Summarization of information required and determined to be disclosed concerning equity method investments in common stock. The summarized information includes: (a) the name of each investee or group of investees for which combined disclosure is appropriate, (2) the percentage ownership of common stock, (3) the difference, if any, between the carrying amount of an investment and the value of the underlying equity in the net assets and the accounting treatment of difference, if any, and (4) the aggregate value of each identified investment based on its quoted market price, if available.",
        "label": "Schedule of Equity Method Investments [Table]",
        "terseLabel": "Schedule of Equity Method Investments [Table]"
       }
      }
     },
     "localname": "ScheduleOfEquityMethodInvestmentsTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsNarrativeDetails",
      "http://www.patternenergy.com/role/UnconsolidatedInvestmentsScheduleOfProjectsAccountedUnderEquityMethodOfAccountingDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock": {
     "auth_ref": [
      "r366",
      "r367"
     ],
     "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": "Financial Assets and Liabilities Required Fair Value Measurement on Recurring Basis"
       }
      }
     },
     "localname": "ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueMeasurementsTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock": {
     "auth_ref": [
      "r398"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of future minimum payments required in the aggregate and for each of the five succeeding fiscal years for operating leases having initial or remaining noncancelable lease terms in excess of one year and the total minimum rentals to be received in the future under noncancelable subleases as of the balance sheet date.",
        "label": "Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]",
        "terseLabel": "Schedule of Estimated Future Commitments Related to Operating Leases and Land Agreements"
       }
      }
     },
     "localname": "ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfNotionalAmountsOfOutstandingDerivativePositionsTableTextBlock": {
     "auth_ref": [
      "r333"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the notional amounts of outstanding derivative positions.",
        "label": "Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]",
        "terseLabel": "Schedule of Notional Amounts of Outstanding Derivative Positions"
       }
      }
     },
     "localname": "ScheduleOfNotionalAmountsOfOutstandingDerivativePositionsTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DerivativeInstrumentsTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfOtherDerivativesNotDesignatedAsHedgingInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock": {
     "auth_ref": [
      "r348",
      "r350"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of derivative instrument not designated or qualifying as hedging instrument.",
        "label": "Derivatives Not Designated as Hedging Instruments [Table Text Block]",
        "terseLabel": "Schedule of Other Derivatives Not Designated as Hedging Instruments, Statements of Financial Performance and Financial Position, Location"
       }
      }
     },
     "localname": "ScheduleOfOtherDerivativesNotDesignatedAsHedgingInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DerivativeInstrumentsTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfPropertyPlantAndEquipmentTable": {
     "auth_ref": [
      "r52",
      "r222"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of information about physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.",
        "label": "Property, Plant and Equipment [Table]",
        "terseLabel": "Property, Plant and Equipment [Table]"
       }
      }
     },
     "localname": "ScheduleOfPropertyPlantAndEquipmentTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/PropertyPlantAndEquipmentScheduleOfPropertyPlantAndEquipmentDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable": {
     "auth_ref": [
      "r144",
      "r417",
      "r418",
      "r419",
      "r420",
      "r421"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Schedule of quantitative and qualitative information pertaining to related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.",
        "label": "Schedule of Related Party Transactions, by Related Party [Table]",
        "terseLabel": "Schedule of Related Party Transactions, by Related Party [Table]"
       }
      }
     },
     "localname": "ScheduleOfRelatedPartyTransactionsByRelatedPartyTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/RelatedPartyTransactionsNarrativeDetails",
      "http://www.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyPurchaseAgreementsDetails",
      "http://www.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyReceivableAndPayableDetails",
      "http://www.patternenergy.com/role/RelatedPartyTransactionsRelatedPartyTransactionRevenueAndExpensesIncludedInStatementsOfOperationsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of related party transactions. Examples of related party transactions include, but are not limited to, transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners and (d) affiliates.",
        "label": "Schedule of Related Party Transactions [Table Text Block]",
        "terseLabel": "Related Party Revenue and Expenses Included in Consolidated Statements of Operations"
       }
      }
     },
     "localname": "ScheduleOfRelatedPartyTransactionsTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/RelatedPartyTransactionsTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfRestrictedCashAndCashEquivalentsTextBlock": {
     "auth_ref": [
      "r31",
      "r139",
      "r443",
      "r465"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of cash and cash equivalents restricted as to withdrawal or usage.",
        "label": "Restrictions on Cash and Cash Equivalents [Table Text Block]",
        "terseLabel": "Reconciliation of Cash and Cash Equivalents and Restricted Cash"
       }
      }
     },
     "localname": "ScheduleOfRestrictedCashAndCashEquivalentsTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SummaryOfSignificantAccountingPoliciesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable": {
     "auth_ref": [
      "r175",
      "r181",
      "r183",
      "r185",
      "r216"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A table disclosing the profit or loss and total assets for each reportable segment of the entity. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.",
        "label": "Schedule of Segment Reporting Information, by Segment [Table]",
        "terseLabel": "Schedule of Segment Reporting Information, by Segment [Table]"
       }
      }
     },
     "localname": "ScheduleOfSegmentReportingInformationBySegmentTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails",
      "http://www.patternenergy.com/role/SegmentReportingScheduleOfSegmentInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock": {
     "auth_ref": [
      "r175",
      "r181",
      "r183",
      "r185",
      "r216"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.",
        "label": "Schedule of Segment Reporting Information, by Segment [Table Text Block]",
        "terseLabel": "Schedule of Segment Reporting Information, by Segment"
       }
      }
     },
     "localname": "ScheduleOfSegmentReportingInformationBySegmentTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SegmentReportingTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfVariableInterestEntitiesTable": {
     "auth_ref": [
      "r320",
      "r321",
      "r322",
      "r323",
      "r324"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of qualitative and quantitative information related to variable interests the entity holds, whether or not such variable interest entity (VIE) is included in the reporting entity's consolidated financial statements. Includes, but is not limited to, description of the significant judgments and assumptions made in determining whether a variable interest (as defined) held by the entity requires the variable interest entity (VIE) (as defined) to be consolidated and (or) disclose information about its involvement with the VIE, individually or in aggregate (as applicable); the nature of restrictions, if any, on the consolidated VIE's assets and on the settlement of its liabilities reported by an entity in its statement of financial position, including the carrying amounts of such assets and liabilities; the nature of, and changes in, the risks associated with involvement in the VIE; how involvement with the VIE affects the entity's financial position, financial performance, and cash flows; the lack of recourse if creditors (or beneficial interest holders) of the consolidated VIE have no recourse to the general credit of the primary beneficiary (if applicable); the terms of arrangements, giving consideration to both explicit arrangements and implicit variable interests, if any, that could require the entity to provide financial support to the VIE, including events or circumstances that could expose the entity to a loss; the methodology used by the entity for determining whether or not it is the primary beneficiary of the variable interest entity; the significant factors considered and judgments made in determining that the power to direct the activities of a VIE that most significantly impact the VIE's economic performance are shared (as defined); the carrying amounts and classification of assets and liabilities of the VIE included in the statement of financial position; the entity's maximum exposure to loss, if any, as a result of its involvement with the VIE, including how the maximum exposure is determined and significant sources of the entity's exposure to the VIE; a tabular comparison of the carrying amounts of the assets and liabilities and the entity's maximum exposure to loss; information about any liquidity arrangements, guarantees, and (or) other commitments by third parties that may affect the fair value or risk of the entity's variable interest in the VIE; whether or not the entity has provided financial support or other support (explicitly or implicitly) to the VIE that it was not previously contractually required to provide or whether the entity intends to provide that support, including the type and amount of the support and the primary reasons for providing the support; and supplemental information the entity determines necessary to provide.",
        "label": "Schedule of Variable Interest Entities [Table]",
        "terseLabel": "Schedule of Variable Interest Entities [Table]"
       }
      }
     },
     "localname": "ScheduleOfVariableInterestEntitiesTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/VariableInterestEntitiesAdditionalInformationDetails",
      "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfVariableInterestEntitiesTextBlock": {
     "auth_ref": [
      "r320",
      "r321",
      "r322",
      "r323",
      "r324"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the significant judgments and assumptions made in determining whether a variable interest (as defined) held by the entity requires the variable interest entity (VIE) (as defined) to be consolidated and (or) disclose information about its involvement with the VIE, individually or in aggregate (as applicable); the nature of restrictions, if any, on the consolidated VIE's assets and on the settlement of its liabilities reported by an entity in its statement of financial position, including the carrying amounts of such assets and liabilities; the nature of, and changes in, the risks associated with involvement in the VIE; how involvement with the VIE affects the entity's financial position, financial performance, and cash flows; the lack of recourse if creditors (or beneficial interest holders) of the consolidated VIE have no recourse to the general credit of the primary beneficiary (if applicable); the terms of arrangements, giving consideration to both explicit arrangements and implicit variable interests, if any, that could require the entity to provide financial support to the VIE, including events or circumstances that could expose the entity to a loss; the methodology used by the entity for determining whether or not it is the primary beneficiary of the variable interest entity; the significant factors considered and judgments made in determining that the power to direct the activities of a VIE that most significantly impact the VIE's economic performance are shared (as defined); the carrying amounts and classification of assets and liabilities of the VIE included in the statement of financial position; the entity's maximum exposure to loss, if any, as a result of its involvement with the VIE, including how the maximum exposure is determined and significant sources of the entity's exposure to the VIE; a comparison of the carrying amounts of the assets and liabilities and the entity's maximum exposure to loss; information about any liquidity arrangements, guarantees, and (or) other commitments by third parties that may affect the fair value or risk of the entity's variable interest in the VIE; whether or not the entity has provided financial support or other support (explicitly or implicitly) to the VIE that it was not previously contractually required to provide or whether the entity intends to provide that support, including the type and amount of the support and the primary reasons for providing the support; and supplemental information the entity determines necessary to provide.",
        "label": "Schedule of Variable Interest Entities [Table Text Block]",
        "terseLabel": "Schedule of Balances of Variable Interest Entities"
       }
      }
     },
     "localname": "ScheduleOfVariableInterestEntitiesTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/VariableInterestEntitiesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "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.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails",
      "http://www.patternenergy.com/role/SegmentReportingScheduleOfSegmentInformationDetails"
     ],
     "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": [
      "r192"
     ],
     "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 Reporting"
       }
      }
     },
     "localname": "SegmentReportingDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SegmentReporting"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_SegmentReportingInformationLineItems": {
     "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": "Segment Reporting Information [Line Items]",
        "terseLabel": "Segment Reporting Information [Line Items]"
       }
      }
     },
     "localname": "SegmentReportingInformationLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails",
      "http://www.patternenergy.com/role/SegmentReportingScheduleOfSegmentInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_SeriesAPreferredStockMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Outstanding nonredeemable series A preferred stock or outstanding series A preferred stock. 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": "Series A Preferred Stock [Member]",
        "terseLabel": "Series A"
       }
      }
     },
     "localname": "SeriesAPreferredStockMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ShareBasedCompensation": {
     "auth_ref": [
      "r133"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 5.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of noncash expense for share-based payment arrangement.",
        "label": "Share-based Payment Arrangement, Noncash Expense",
        "terseLabel": "Stock-based compensation"
       }
      }
     },
     "localname": "ShareBasedCompensation",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ShortTermDebtTypeAxis": {
     "auth_ref": [
      "r56"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of short-term debt arrangement.",
        "label": "Short-term Debt, Type [Axis]",
        "terseLabel": "Short-term Debt, Type [Axis]"
       }
      }
     },
     "localname": "ShortTermDebtTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ShortTermDebtTypeDomain": {
     "auth_ref": [
      "r54"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Type of short-term debt arrangement, such as notes, line of credit, commercial paper, asset-based financing, project financing, letter of credit financing.",
        "label": "Short-term Debt, Type [Domain]",
        "terseLabel": "Short-term Debt, Type [Domain]"
       }
      }
     },
     "localname": "ShortTermDebtTypeDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_SignificantAccountingPoliciesTextBlock": {
     "auth_ref": [
      "r151"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for all significant accounting policies of the reporting entity.",
        "label": "Significant Accounting Policies [Text Block]",
        "terseLabel": "Summary of Significant Accounting Policies"
       }
      }
     },
     "localname": "SignificantAccountingPoliciesTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SummaryOfSignificantAccountingPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_StatementBusinessSegmentsAxis": {
     "auth_ref": [
      "r5",
      "r181",
      "r216",
      "r224",
      "r229",
      "r230",
      "r477"
     ],
     "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.patternenergy.com/role/SegmentReportingReconciliationOfSegmentAdjustedEbitdaDetails",
      "http://www.patternenergy.com/role/SegmentReportingScheduleOfSegmentInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementClassOfStockAxis": {
     "auth_ref": [
      "r39",
      "r40",
      "r41",
      "r252"
     ],
     "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.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementEquityComponentsAxis": {
     "auth_ref": [
      "r66",
      "r252"
     ],
     "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.patternenergy.com/role/AccumulatedOtherComprehensiveLossSummaryOfAccumulatedOtherComprehensiveLossDetails",
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfStockholdersEquity",
      "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesDetails"
     ],
     "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.patternenergy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "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.patternenergy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationForfeited": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of shares (or other type of equity) forfeited during the period.",
        "label": "Shares Issued, Shares, Share-based Payment Arrangement, Forfeited",
        "negatedTerseLabel": "Forfeitures of Class A common stock under equity incentive award plan (in shares)"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodSharesShareBasedCompensationForfeited",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationGross": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number, before forfeiture, of shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP).",
        "label": "Shares Issued, Shares, Share-based Payment Arrangement, before Forfeiture",
        "terseLabel": "Issuance of Class A common stock under equity incentive award plan, shares"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodSharesShareBasedCompensationGross",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_StockIssuedDuringPeriodValueShareBasedCompensationForfeited": {
     "auth_ref": [
      "r280"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Value of forfeited shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP).",
        "label": "Shares Issued, Value, Share-based Payment Arrangement, Forfeited",
        "negatedTerseLabel": "Forfeitures of Class A common stock under equity incentive award plan"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodValueShareBasedCompensationForfeited",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockIssuedDuringPeriodValueShareBasedCompensationGross": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Value, before forfeiture, of shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP).",
        "label": "Shares Issued, Value, Share-based Payment Arrangement, before Forfeiture",
        "verboseLabel": "Issuance of Class A common stock under equity incentive award plan, net"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodValueShareBasedCompensationGross",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockRepurchasedDuringPeriodShares": {
     "auth_ref": [
      "r40",
      "r41",
      "r252",
      "r258"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern 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, Shares",
        "negatedTerseLabel": "Repurchase of shares for employee tax withholding, shares"
       }
      }
     },
     "localname": "StockRepurchasedDuringPeriodShares",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_StockRepurchasedDuringPeriodValue": {
     "auth_ref": [
      "r40",
      "r41",
      "r252",
      "r258"
     ],
     "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",
        "negatedTerseLabel": "Repurchase of shares for employee tax withholding"
       }
      }
     },
     "localname": "StockRepurchasedDuringPeriodValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockholdersEquity": {
     "auth_ref": [
      "r41",
      "r45",
      "r46",
      "r195"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 1.0,
       "parentTag": "us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest",
       "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",
        "totalLabel": "Total equity before noncontrolling interest"
       }
      }
     },
     "localname": "StockholdersEquity",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockholdersEquityAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Stockholders' Equity Attributable to Parent [Abstract]",
        "terseLabel": "Equity:"
       }
      }
     },
     "localname": "StockholdersEquityAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest": {
     "auth_ref": [
      "r305",
      "r306",
      "r325"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 3.0,
       "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.",
        "label": "Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest",
        "periodEndLabel": "Ending balance",
        "periodStartLabel": "Beginning balance",
        "totalLabel": "Total equity"
       }
      }
     },
     "localname": "StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/AccumulatedOtherComprehensiveLossSummaryOfAccumulatedOtherComprehensiveLossDetails",
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets",
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockholdersEquityNoteDisclosureTextBlock": {
     "auth_ref": [
      "r262"
     ],
     "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.patternenergy.com/role/StockholdersEquity"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_SubleaseIncome": {
     "auth_ref": [
      "r406",
      "r413"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/LeasesScheduleOfLeaseCostSupplementalCashFlowAndOtherInformationDetails": {
       "order": 2.0,
       "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",
        "negatedTerseLabel": "Sublease income"
       }
      }
     },
     "localname": "SubleaseIncome",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/LeasesScheduleOfLeaseCostSupplementalCashFlowAndOtherInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SubsequentEventLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.",
        "label": "Subsequent Event [Line Items]",
        "terseLabel": "Subsequent Event [Line Items]"
       }
      }
     },
     "localname": "SubsequentEventLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_SubsequentEventMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Identifies event that occurred after the balance sheet date but before financial statements are issued or available to be issued.",
        "label": "Subsequent Event [Member]",
        "terseLabel": "Subsequent Event"
       }
      }
     },
     "localname": "SubsequentEventMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_SubsequentEventTable": {
     "auth_ref": [
      "r423"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Discloses pertinent information about one or more significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued.",
        "label": "Subsequent Event [Table]",
        "terseLabel": "Subsequent Event [Table]"
       }
      }
     },
     "localname": "SubsequentEventTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_SubsequentEventTypeAxis": {
     "auth_ref": [
      "r423"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by event that occurred after the balance sheet date but before financial statements are issued or available to be issued.",
        "label": "Subsequent Event Type [Axis]",
        "terseLabel": "Subsequent Event Type [Axis]"
       }
      }
     },
     "localname": "SubsequentEventTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_SubsequentEventTypeDomain": {
     "auth_ref": [
      "r423"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Event that occurred after the balance sheet date but before financial statements are issued or available to be issued.",
        "label": "Subsequent Event Type [Domain]",
        "terseLabel": "Subsequent Event Type [Domain]"
       }
      }
     },
     "localname": "SubsequentEventTypeDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SubsequentEventsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_SubsequentEventsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Subsequent Events [Abstract]"
       }
      }
     },
     "localname": "SubsequentEventsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_SubsequentEventsTextBlock": {
     "auth_ref": [
      "r424"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.",
        "label": "Subsequent Events [Text Block]",
        "terseLabel": "Subsequent Events"
       }
      }
     },
     "localname": "SubsequentEventsTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SubsequentEvents"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_SubsidiaryOrEquityMethodInvesteeSaleOfStockBySubsidiaryOrEquityInvesteeTable": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Different names of stock transactions and the different attributes of each transaction.",
        "label": "Subsidiary or Equity Method Investee, Sale of Stock by Subsidiary or Equity Investee [Table]",
        "terseLabel": "Subsidiary or Equity Method Investee, Sale of Stock by Subsidiary or Equity Investee [Table]"
       }
      }
     },
     "localname": "SubsidiaryOrEquityMethodInvesteeSaleOfStockBySubsidiaryOrEquityInvesteeTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/StockholdersEquityAdditionalInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_SubsidiarySaleOfStockLineItems": {
     "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": "Subsidiary, Sale of Stock [Line Items]",
        "terseLabel": "Subsidiary, Sale of Stock [Line Items]"
       }
      }
     },
     "localname": "SubsidiarySaleOfStockLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/StockholdersEquityAdditionalInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_SupplementalCashFlowElementsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Supplemental Cash Flow Elements [Abstract]",
        "terseLabel": "Supplemental disclosures"
       }
      }
     },
     "localname": "SupplementalCashFlowElementsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateProvisionalIncomeTaxExpenseBenefit": {
     "auth_ref": [
      "r285"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of reasonable estimate for income tax expense (benefit) for which accounting for tax effect for remeasurement of deferred tax from change in tax rate is incomplete pursuant to Tax Cuts and Jobs Act.",
        "label": "Tax Cuts and Jobs Act, Incomplete Accounting, Change in Tax Rate, Provisional Income Tax Expense (Benefit)",
        "negatedTerseLabel": "Tax reform, change in tax rate"
       }
      }
     },
     "localname": "TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateProvisionalIncomeTaxExpenseBenefit",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/StockholdersEquitySummaryOfNoncontrollingInterestBalancesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain": {
     "auth_ref": [
      "r429"
     ],
     "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.patternenergy.com/role/FairValueMeasurementsFinancialAssetsAndLiabilitiesRequiredFairValueMeasurementOnRecurringBasisDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_TreasuryStockMember": {
     "auth_ref": [
      "r65",
      "r260"
     ],
     "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.patternenergy.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_TreasuryStockShares": {
     "auth_ref": [
      "r65",
      "r260"
     ],
     "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": "Treasury stock (in Shares)"
       }
      }
     },
     "localname": "TreasuryStockShares",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_TreasuryStockValue": {
     "auth_ref": [
      "r65",
      "r260",
      "r261"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets": {
       "order": 5.0,
       "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",
        "negatedTerseLabel": "Treasury stock, at cost; 249,481 and 223,040 shares of Class A common stock as of September 30, 2019 and December 31, 2018, respectively"
       }
      }
     },
     "localname": "TreasuryStockValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "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.patternenergy.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_UnamortizedDebtIssuanceExpense": {
     "auth_ref": [
      "r53"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/DebtConvertibleSeniorNoteDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_ConvertibleDebt",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.",
        "label": "Unamortized Debt Issuance Expense",
        "negatedTerseLabel": "Unamortized financing costs"
       }
      }
     },
     "localname": "UnamortizedDebtIssuanceExpense",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtConvertibleSeniorNoteDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_UnrealizedGainLossOnDerivatives": {
     "auth_ref": [
      "r134"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 2.0,
       "parentTag": "us-gaap_NonoperatingIncomeExpense",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.",
        "label": "Unrealized Gain (Loss) on Derivatives",
        "terseLabel": "Gain on derivatives"
       }
      }
     },
     "localname": "UnrealizedGainLossOnDerivatives",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_UnrealizedGainLossOnDerivativesAndCommodityContracts": {
     "auth_ref": [
      "r134"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 4.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of open derivatives, commodity, or energy contracts, held at each balance sheet date, that was included in earnings for the period.",
        "label": "Unrealized Gain (Loss) on Derivatives and Commodity Contracts",
        "negatedLabel": "Loss (gain) on derivatives"
       }
      }
     },
     "localname": "UnrealizedGainLossOnDerivativesAndCommodityContracts",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_UseOfEstimates": {
     "auth_ref": [
      "r168",
      "r169",
      "r170",
      "r171",
      "r172",
      "r173",
      "r174"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles.",
        "label": "Use of Estimates, Policy [Policy Text Block]",
        "terseLabel": "Use of Estimates"
       }
      }
     },
     "localname": "UseOfEstimates",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/SummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_UtilitiesOperatingExpenseMaintenanceAndOperations": {
     "auth_ref": [
      "r104"
     ],
     "calculation": {
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 3.0,
       "parentTag": "us-gaap_CostOfRevenue",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of operating expense for routine plant maintenance, repairs and operations of regulated operation.",
        "label": "Utilities Operating Expense, Maintenance and Operations",
        "terseLabel": "Project expense"
       }
      }
     },
     "localname": "UtilitiesOperatingExpenseMaintenanceAndOperations",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ValuationTechniqueAxis": {
     "auth_ref": [
      "r369"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by valuation approach and technique.",
        "label": "Valuation Approach and Technique [Axis]",
        "terseLabel": "Valuation Approach and Technique [Axis]"
       }
      }
     },
     "localname": "ValuationTechniqueAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ValuationTechniqueDiscountedCashFlowMember": {
     "auth_ref": [
      "r369"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Valuation technique calculating present value of future cash flows.",
        "label": "Valuation Technique, Discounted Cash Flow [Member]",
        "terseLabel": "Discounted Cash Flow"
       }
      }
     },
     "localname": "ValuationTechniqueDiscountedCashFlowMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ValuationTechniqueDomain": {
     "auth_ref": [
      "r369"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Valuation approach and technique.",
        "label": "Valuation Approach and Technique [Domain]",
        "terseLabel": "Valuation Approach and Technique [Domain]"
       }
      }
     },
     "localname": "ValuationTechniqueDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/FairValueLevel3InputsQuantitativeInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis": {
     "auth_ref": [
      "r320",
      "r321",
      "r323"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by category of Variable Interest Entity (VIE).",
        "label": "Variable Interest Entities [Axis]",
        "terseLabel": "Variable Interest Entities [Axis]"
       }
      }
     },
     "localname": "VariableInterestEntitiesByClassificationOfEntityAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/VariableInterestEntitiesAdditionalInformationDetails",
      "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_VariableInterestEntityDisclosureTextBlock": {
     "auth_ref": [
      "r331"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for a variable interest entity (VIE), including but not limited to, judgments and assumptions in determining whether to consolidate and in identifying the primary beneficiary, gain (loss) recognized on the initial consolidation of the VIE, terms of arrangements, amounts and classification of the VIE's assets and liabilities, and the entity's maximum exposure to loss.",
        "label": "Variable Interest Entity Disclosure [Text Block]",
        "terseLabel": "Variable Interest Entities"
       }
      }
     },
     "localname": "VariableInterestEntityDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/VariableInterestEntities"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_VariableInterestEntityLineItems": {
     "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": "Variable Interest Entity [Line Items]",
        "terseLabel": "Variable Interest Entity [Line Items]"
       }
      }
     },
     "localname": "VariableInterestEntityLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/VariableInterestEntitiesAdditionalInformationDetails",
      "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_VariableInterestEntityNonconsolidatedCarryingAmountAssetsAndLiabilitiesNet": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Net carrying amount of the assets and liabilities in the reporting entity's statement of financial position that relate to the reporting entity's variable interest in the Variable Interest Entity (VIE), when the reporting entity is not the VIE's primary beneficiary.",
        "label": "Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net",
        "terseLabel": "Carrying value of unconsolidated investment"
       }
      }
     },
     "localname": "VariableInterestEntityNonconsolidatedCarryingAmountAssetsAndLiabilitiesNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/VariableInterestEntitiesAdditionalInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_VariableInterestEntityNotPrimaryBeneficiaryMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Variable Interest Entities (VIE) in which the entity does not have a controlling financial interest (as defined) and of which it is therefore not the primary beneficiary. VIEs of which the entity is not the primary beneficiary because it does not have the power to direct the activities of the VIE that most significantly impact the VIE's economic performance and for which it does not have the obligation to absorb losses of the VIE that could potentially be significant to the VIE or the right to receive benefits from the VIE that could potentially be significant to the VIE are not included in the consolidated financial statements of the entity.",
        "label": "Variable Interest Entity, Not Primary Beneficiary [Member]",
        "terseLabel": "Variable Interest Entity, Not Primary Beneficiary"
       }
      }
     },
     "localname": "VariableInterestEntityNotPrimaryBeneficiaryMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/VariableInterestEntitiesAdditionalInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_VariableInterestEntityPrimaryBeneficiaryMember": {
     "auth_ref": [
      "r320"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Variable Interest Entities (VIE) in which the entity has a controlling financial interest (as defined) and of which it is therefore the primary beneficiary. A controlling financial interest is determined based on both: (a) the entity's power to direct activities of the VIE that most significantly impact the VIE's economic performance and (b) the entity's obligation to absorb losses of the VIE that could potentially be significant to the VIE or the right to receive benefits from the VIE that could potentially be significant to the VIE. VIEs of which the entity is the primary beneficiary are included in the consolidated financial statements of the entity.",
        "label": "Variable Interest Entity, Primary Beneficiary [Member]",
        "terseLabel": "Variable Interest Entity, Primary Beneficiary"
       }
      }
     },
     "localname": "VariableInterestEntityPrimaryBeneficiaryMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/VariableInterestEntitiesScheduleOfVariableInterestEntitiesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_VariableRateAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of variable rate.",
        "label": "Variable Rate [Axis]",
        "terseLabel": "Variable Rate [Axis]"
       }
      }
     },
     "localname": "VariableRateAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_VariableRateDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Interest rate that fluctuates over time as a result of an underlying benchmark interest rate or index.",
        "label": "Variable Rate [Domain]",
        "terseLabel": "Variable Rate [Domain]"
       }
      }
     },
     "localname": "VariableRateDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/DebtAdditionalInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding": {
     "auth_ref": [
      "r157",
      "r163"
     ],
     "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",
        "terseLabel": "Diluted (in shares)",
        "verboseLabel": "Class A common stock - diluted (in shares)"
       }
      }
     },
     "localname": "WeightedAverageNumberOfDilutedSharesOutstanding",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.patternenergy.com/role/EarningsLossPerShareComputationsOfClassBasicAndDilutedEarningsLossPerShareDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Weighted Average Number of Shares Outstanding, Diluted [Abstract]",
        "terseLabel": "Weighted-average number of common shares outstanding"
       }
      }
     },
     "localname": "WeightedAverageNumberOfSharesOutstandingAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_WeightedAverageNumberOfSharesOutstandingBasic": {
     "auth_ref": [
      "r155",
      "r163"
     ],
     "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": "Basic (in shares)",
        "verboseLabel": "Class A common stock - basic (in shares)"
       }
      }
     },
     "localname": "WeightedAverageNumberOfSharesOutstandingBasic",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.patternenergy.com/role/EarningsLossPerShareComputationsOfClassBasicAndDilutedEarningsLossPerShareDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Weighted Average Number of Shares Outstanding Reconciliation [Abstract]",
        "terseLabel": "Denominator for EPS:"
       }
      }
     },
     "localname": "WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.patternenergy.com/role/EarningsLossPerShareComputationsOfClassBasicAndDilutedEarningsLossPerShareDetails"
     ],
     "xbrltype": "stringItemType"
    }
   },
   "unitCount": 12
  }
 },
 "std_ref": {
  "r0": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Topic": "205",
   "URI": "http://asc.fasb.org/extlink&oid=109222160&loc=SL51721533-107759"
  },
  "r1": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "205",
   "URI": "http://asc.fasb.org/extlink&oid=109222160&loc=SL51721494-107759"
  },
  "r10": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "205",
   "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=SL51721665-107760"
  },
  "r100": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(b)(2))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r101": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.1(e))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r102": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.1,2)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r103": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.19)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r104": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.2(b))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r105": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.2)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r106": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.4)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r107": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.7)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r108": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.7,9)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r109": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.8)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r11": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "205",
   "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=SL51721671-107760"
  },
  "r110": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.9)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r111": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "220",
   "URI": "http://asc.fasb.org/topic&trid=2134417"
  },
  "r112": {
   "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"
  },
  "r113": {
   "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"
  },
  "r114": {
   "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"
  },
  "r115": {
   "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"
  },
  "r116": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585"
  },
  "r117": {
   "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"
  },
  "r118": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585"
  },
  "r119": {
   "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"
  },
  "r12": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "205",
   "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=SL51721673-107760"
  },
  "r120": {
   "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"
  },
  "r121": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585"
  },
  "r122": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(f)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585"
  },
  "r123": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585"
  },
  "r124": {
   "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"
  },
  "r125": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "17",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(ee)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3367-108585"
  },
  "r126": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3000-108585"
  },
  "r127": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "21D",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=SL94080555-108585"
  },
  "r128": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "23",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3505-108585"
  },
  "r129": {
   "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"
  },
  "r13": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5C",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)(2)",
   "Topic": "205",
   "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=SL51721675-107760"
  },
  "r130": {
   "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"
  },
  "r131": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(f)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3536-108585"
  },
  "r132": {
   "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"
  },
  "r133": {
   "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"
  },
  "r134": {
   "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"
  },
  "r135": {
   "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"
  },
  "r136": {
   "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"
  },
  "r137": {
   "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"
  },
  "r138": {
   "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"
  },
  "r139": {
   "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"
  },
  "r14": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5C",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(2)",
   "Topic": "205",
   "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=SL51721675-107760"
  },
  "r140": {
   "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"
  },
  "r141": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(d)(1))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r142": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(g))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r143": {
   "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"
  },
  "r144": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(k))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r145": {
   "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"
  },
  "r146": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08.(d)(1))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r147": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08.(e),(f))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r148": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08.(k)(1))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r149": {
   "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"
  },
  "r15": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5C",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "205",
   "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=SL51721675-107760"
  },
  "r150": {
   "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"
  },
  "r151": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "235",
   "URI": "http://asc.fasb.org/topic&trid=2122369"
  },
  "r152": {
   "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"
  },
  "r153": {
   "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"
  },
  "r154": {
   "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"
  },
  "r155": {
   "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"
  },
  "r156": {
   "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"
  },
  "r157": {
   "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"
  },
  "r158": {
   "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"
  },
  "r159": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=117326831&loc=d3e1500-109256"
  },
  "r16": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5D",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "205",
   "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=SL51721677-107760"
  },
  "r160": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=117326831&loc=d3e1278-109256"
  },
  "r161": {
   "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"
  },
  "r162": {
   "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"
  },
  "r163": {
   "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"
  },
  "r164": {
   "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"
  },
  "r165": {
   "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"
  },
  "r166": {
   "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"
  },
  "r167": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "260",
   "URI": "http://asc.fasb.org/topic&trid=2144383"
  },
  "r168": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592"
  },
  "r169": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592"
  },
  "r17": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "205",
   "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=SL51721683-107760"
  },
  "r170": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6161-108592"
  },
  "r171": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6191-108592"
  },
  "r172": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6061-108592"
  },
  "r173": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6132-108592"
  },
  "r174": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6143-108592"
  },
  "r175": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "21",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8721-108599"
  },
  "r176": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599"
  },
  "r177": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599"
  },
  "r178": {
   "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"
  },
  "r179": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(g)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599"
  },
  "r18": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "SubTopic": "20",
   "Topic": "205",
   "URI": "http://asc.fasb.org/subtopic&trid=2122178"
  },
  "r180": {
   "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"
  },
  "r181": {
   "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"
  },
  "r182": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8813-108599"
  },
  "r183": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8813-108599"
  },
  "r184": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "30",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8906-108599"
  },
  "r185": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "30",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8906-108599"
  },
  "r186": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "31",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8924-108599"
  },
  "r187": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "32",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599"
  },
  "r188": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "32",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599"
  },
  "r189": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "32",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599"
  },
  "r19": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "205",
   "URI": "http://asc.fasb.org/topic&trid=2122149"
  },
  "r190": {
   "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"
  },
  "r191": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "41",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e9038-108599"
  },
  "r192": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "280",
   "URI": "http://asc.fasb.org/topic&trid=2134510"
  },
  "r193": {
   "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"
  },
  "r194": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118952595&loc=d3e4531-111522"
  },
  "r195": {
   "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"
  },
  "r196": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "323",
   "URI": "http://asc.fasb.org/extlink&oid=109237563&loc=d3e33749-111570"
  },
  "r197": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "323",
   "URI": "http://asc.fasb.org/extlink&oid=114001798&loc=d3e33912-111571"
  },
  "r198": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(1)",
   "Topic": "323",
   "URI": "http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571"
  },
  "r199": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(3)",
   "Topic": "323",
   "URI": "http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571"
  },
  "r2": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Topic": "205",
   "URI": "http://asc.fasb.org/extlink&oid=109222160&loc=d3e957-107759"
  },
  "r20": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6676-107765"
  },
  "r200": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(b)",
   "Topic": "323",
   "URI": "http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571"
  },
  "r201": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "323",
   "URI": "http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571"
  },
  "r202": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "323",
   "URI": "http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571"
  },
  "r203": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "323",
   "URI": "http://asc.fasb.org/topic&trid=2196965"
  },
  "r204": {
   "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"
  },
  "r205": {
   "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"
  },
  "r206": {
   "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"
  },
  "r207": {
   "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"
  },
  "r208": {
   "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"
  },
  "r209": {
   "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"
  },
  "r21": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6676-107765"
  },
  "r210": {
   "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"
  },
  "r211": {
   "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"
  },
  "r212": {
   "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"
  },
  "r213": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "05",
   "SubTopic": "10",
   "Topic": "340",
   "URI": "http://asc.fasb.org/extlink&oid=68074540&loc=d3e5879-108316"
  },
  "r214": {
   "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"
  },
  "r215": {
   "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"
  },
  "r216": {
   "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"
  },
  "r217": {
   "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"
  },
  "r218": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=109226348&loc=d3e2420-110228"
  },
  "r219": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229"
  },
  "r22": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(g)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6676-107765"
  },
  "r220": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229"
  },
  "r221": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229"
  },
  "r222": {
   "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"
  },
  "r223": {
   "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"
  },
  "r224": {
   "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"
  },
  "r225": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230"
  },
  "r226": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=109226691&loc=SL51724579-110230"
  },
  "r227": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "360",
   "URI": "http://asc.fasb.org/topic&trid=2155823"
  },
  "r228": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "410",
   "URI": "http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849"
  },
  "r229": {
   "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"
  },
  "r23": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6676-107765"
  },
  "r230": {
   "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"
  },
  "r231": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "440",
   "URI": "http://asc.fasb.org/topic&trid=2144648"
  },
  "r232": {
   "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"
  },
  "r233": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=118942415&loc=d3e14615-108349"
  },
  "r234": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=118942415&loc=d3e14394-108349"
  },
  "r235": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=118942415&loc=d3e14435-108349"
  },
  "r236": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=118942415&loc=d3e14435-108349"
  },
  "r237": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=118942415&loc=d3e14453-108349"
  },
  "r238": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=118942415&loc=d3e14472-108349"
  },
  "r239": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=118942415&loc=d3e14557-108349"
  },
  "r24": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6787-107765"
  },
  "r240": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "450",
   "URI": "http://asc.fasb.org/topic&trid=2127136"
  },
  "r241": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "460",
   "URI": "http://asc.fasb.org/extlink&oid=118943654&loc=d3e12021-110248"
  },
  "r242": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "460",
   "URI": "http://asc.fasb.org/extlink&oid=118943654&loc=d3e12053-110248"
  },
  "r243": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=99376301&loc=d3e1314-112600"
  },
  "r244": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=99376301&loc=d3e1336-112600"
  },
  "r245": {
   "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"
  },
  "r246": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "25",
   "SubTopic": "20",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=109126253&loc=d3e4852-112606"
  },
  "r247": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870"
  },
  "r248": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(1)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870"
  },
  "r249": {
   "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"
  },
  "r25": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6801-107765"
  },
  "r250": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=109500613&loc=SL6036836-161870"
  },
  "r251": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "470",
   "URI": "http://asc.fasb.org/topic&trid=2208564"
  },
  "r252": {
   "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"
  },
  "r253": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644"
  },
  "r254": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21484-112644"
  },
  "r255": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21506-112644"
  },
  "r256": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21521-112644"
  },
  "r257": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21538-112644"
  },
  "r258": {
   "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"
  },
  "r259": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770"
  },
  "r26": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6812-107765"
  },
  "r260": {
   "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"
  },
  "r261": {
   "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"
  },
  "r262": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "505",
   "URI": "http://asc.fasb.org/topic&trid=2208762"
  },
  "r263": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=118944033&loc=SL49130531-203044"
  },
  "r264": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=118944033&loc=SL49130532-203044"
  },
  "r265": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=118956577&loc=SL49130556-203045"
  },
  "r266": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)(1)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=118956577&loc=SL49130556-203045"
  },
  "r267": {
   "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"
  },
  "r268": {
   "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"
  },
  "r269": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=118956577&loc=SL49130549-203045"
  },
  "r27": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6904-107765"
  },
  "r270": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=118956577&loc=SL49130549-203045"
  },
  "r271": {
   "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"
  },
  "r272": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "91",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=118944142&loc=SL49130690-203046-203046"
  },
  "r273": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "606",
   "URI": "http://asc.fasb.org/topic&trid=49130388"
  },
  "r274": {
   "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"
  },
  "r275": {
   "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"
  },
  "r276": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(n)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r277": {
   "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"
  },
  "r278": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "35",
   "SubTopic": "10",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116855982&loc=d3e4534-113899"
  },
  "r279": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901"
  },
  "r28": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6911-107765"
  },
  "r280": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "c(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r281": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=118258462&loc=d3e11149-113907"
  },
  "r282": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=118258462&loc=d3e11178-113907"
  },
  "r283": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=116821951&loc=d3e31931-109318"
  },
  "r284": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319"
  },
  "r285": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2A",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 5.EE.Q2(b))",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=116825942&loc=SL116722634-122817"
  },
  "r286": {
   "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"
  },
  "r287": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "23",
   "Publisher": "FASB",
   "Section": "25",
   "SubTopic": "10",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=116868678&loc=d3e1043-128460"
  },
  "r288": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(h)(2)",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463"
  },
  "r289": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(h)(3)",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463"
  },
  "r29": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6935-107765"
  },
  "r290": {
   "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"
  },
  "r291": {
   "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"
  },
  "r292": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "37",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=116868840&loc=d3e2207-128464"
  },
  "r293": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=116869197&loc=d3e4845-128472"
  },
  "r294": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(e)(1)",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=116869197&loc=d3e4845-128472"
  },
  "r295": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "25",
   "SubTopic": "30",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476"
  },
  "r296": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "30",
   "SubTopic": "30",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=116859721&loc=d3e6578-128477"
  },
  "r297": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "30",
   "SubTopic": "30",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=116859721&loc=d3e6613-128477"
  },
  "r298": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "35",
   "SubTopic": "30",
   "Subparagraph": "(b)",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=116859824&loc=d3e6819-128478"
  },
  "r299": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "35",
   "SubTopic": "30",
   "Subparagraph": "b",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=116859824&loc=d3e6819-128478"
  },
  "r3": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Topic": "205",
   "URI": "http://asc.fasb.org/extlink&oid=109222160&loc=SL51721525-107759"
  },
  "r30": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e7018-107765"
  },
  "r300": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(b)",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479"
  },
  "r301": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(b)(1)",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479"
  },
  "r302": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(c)(1)",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479"
  },
  "r303": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(a)(1)",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=35744584&loc=d3e7008-128479"
  },
  "r304": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "805",
   "URI": "http://asc.fasb.org/topic&trid=2303972"
  },
  "r305": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4568447-111683"
  },
  "r306": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "16",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4568740-111683"
  },
  "r307": {
   "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"
  },
  "r308": {
   "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"
  },
  "r309": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "21",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4613674-111683"
  },
  "r31": {
   "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"
  },
  "r310": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "23",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4569655-111683"
  },
  "r311": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "24",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4616395-111683"
  },
  "r312": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=d3e5614-111684"
  },
  "r313": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(1)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684"
  },
  "r314": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(2)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684"
  },
  "r315": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684"
  },
  "r316": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684"
  },
  "r317": {
   "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"
  },
  "r318": {
   "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"
  },
  "r319": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684"
  },
  "r32": {
   "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"
  },
  "r320": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=118582676&loc=d3e5710-111685"
  },
  "r321": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=118582676&loc=d3e5728-111685"
  },
  "r322": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=118582676&loc=SL6759159-111685"
  },
  "r323": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=118582676&loc=d3e5747-111685"
  },
  "r324": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=118582676&loc=SL6228884-111685"
  },
  "r325": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4I",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=116874947&loc=SL4590271-111686"
  },
  "r326": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4J",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=116874947&loc=SL4591551-111686"
  },
  "r327": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4K",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=116874947&loc=SL4591552-111686"
  },
  "r328": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.3A-02)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=116822174&loc=d3e355033-122828"
  },
  "r329": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.3A-03)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=116822174&loc=d3e355100-122828"
  },
  "r33": {
   "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"
  },
  "r330": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.3A-04)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=116822174&loc=d3e355119-122828"
  },
  "r331": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "810",
   "URI": "http://asc.fasb.org/topic&trid=2197479"
  },
  "r332": {
   "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"
  },
  "r333": {
   "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"
  },
  "r334": {
   "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"
  },
  "r335": {
   "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"
  },
  "r336": {
   "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"
  },
  "r337": {
   "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"
  },
  "r338": {
   "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"
  },
  "r339": {
   "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"
  },
  "r34": {
   "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"
  },
  "r340": {
   "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"
  },
  "r341": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)(2)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959"
  },
  "r342": {
   "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"
  },
  "r343": {
   "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"
  },
  "r344": {
   "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"
  },
  "r345": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4C",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959"
  },
  "r346": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4C",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959"
  },
  "r347": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4C",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959"
  },
  "r348": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4C",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959"
  },
  "r349": {
   "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"
  },
  "r35": {
   "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"
  },
  "r350": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4CC",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL109998890-113959"
  },
  "r351": {
   "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"
  },
  "r352": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4D",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624177-113959"
  },
  "r353": {
   "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"
  },
  "r354": {
   "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"
  },
  "r355": {
   "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"
  },
  "r356": {
   "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"
  },
  "r357": {
   "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"
  },
  "r358": {
   "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"
  },
  "r359": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6A",
   "Publisher": "FASB",
   "Section": "25",
   "SubTopic": "20",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=118875152&loc=SL5864739-113975"
  },
  "r36": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(20))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r360": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109974929&loc=SL110061190-113977"
  },
  "r361": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "25",
   "Subparagraph": "(a)(1),(2)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109977999&loc=d3e76258-113986"
  },
  "r362": {
   "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"
  },
  "r363": {
   "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"
  },
  "r364": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(c)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=112277219&loc=d3e80748-113994"
  },
  "r365": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "815",
   "URI": "http://asc.fasb.org/topic&trid=2229140"
  },
  "r366": {
   "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"
  },
  "r367": {
   "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"
  },
  "r368": {
   "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"
  },
  "r369": {
   "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"
  },
  "r37": {
   "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"
  },
  "r370": {
   "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"
  },
  "r371": {
   "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"
  },
  "r372": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r373": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r374": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1a)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r375": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r376": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r377": {
   "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"
  },
  "r378": {
   "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"
  },
  "r379": {
   "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"
  },
  "r38": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(24))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r380": {
   "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"
  },
  "r381": {
   "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"
  },
  "r382": {
   "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"
  },
  "r383": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)",
   "Topic": "825",
   "URI": "http://asc.fasb.org/extlink&oid=75031198&loc=d3e14064-108612"
  },
  "r384": {
   "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"
  },
  "r385": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32022-110900"
  },
  "r386": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "18",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32157-110900"
  },
  "r387": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900"
  },
  "r388": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901"
  },
  "r389": {
   "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"
  },
  "r39": {
   "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"
  },
  "r390": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "835",
   "URI": "http://asc.fasb.org/extlink&oid=114775744&loc=d3e28541-108399"
  },
  "r391": {
   "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"
  },
  "r392": {
   "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"
  },
  "r393": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "835",
   "URI": "http://asc.fasb.org/extlink&oid=114775744&loc=d3e28567-108399"
  },
  "r394": {
   "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"
  },
  "r395": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S45",
   "SubTopic": "30",
   "Topic": "835",
   "URI": "http://asc.fasb.org/extlink&oid=68176171&loc=SL68176184-208336"
  },
  "r396": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "40",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Subparagraph": "(Note 3)",
   "Topic": "840",
   "URI": "http://asc.fasb.org/extlink&oid=82846649&loc=d3e38371-112697"
  },
  "r397": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "840",
   "URI": "http://asc.fasb.org/extlink&oid=77902758&loc=d3e41502-112717"
  },
  "r398": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "840",
   "URI": "http://asc.fasb.org/extlink&oid=77902758&loc=d3e41502-112717"
  },
  "r399": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=119364159&loc=SL77916155-209984"
  },
  "r4": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "205",
   "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=d3e1361-107760"
  },
  "r40": {
   "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"
  },
  "r400": {
   "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"
  },
  "r401": {
   "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"
  },
  "r402": {
   "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"
  },
  "r403": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918666-209980"
  },
  "r404": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980"
  },
  "r405": {
   "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"
  },
  "r406": {
   "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"
  },
  "r407": {
   "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"
  },
  "r408": {
   "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"
  },
  "r409": {
   "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"
  },
  "r41": {
   "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"
  },
  "r410": {
   "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"
  },
  "r411": {
   "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"
  },
  "r412": {
   "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"
  },
  "r413": {
   "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"
  },
  "r414": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "SubTopic": "20",
   "Topic": "842",
   "URI": "http://asc.fasb.org/subtopic&trid=77888251"
  },
  "r415": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=119202524&loc=SL77919396-209981"
  },
  "r416": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "850",
   "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864"
  },
  "r417": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "850",
   "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864"
  },
  "r418": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "850",
   "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864"
  },
  "r419": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "850",
   "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39622-107864"
  },
  "r42": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(3))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r420": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "850",
   "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39678-107864"
  },
  "r421": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "850",
   "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39691-107864"
  },
  "r422": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "850",
   "URI": "http://asc.fasb.org/topic&trid=2122745"
  },
  "r423": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "855",
   "URI": "http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662"
  },
  "r424": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "855",
   "URI": "http://asc.fasb.org/topic&trid=2122774"
  },
  "r425": {
   "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"
  },
  "r426": {
   "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"
  },
  "r427": {
   "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"
  },
  "r428": {
   "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"
  },
  "r429": {
   "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"
  },
  "r43": {
   "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"
  },
  "r430": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(a)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e61929-109447"
  },
  "r431": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(b)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e61929-109447"
  },
  "r432": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(a)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62059-109447"
  },
  "r433": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(b)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62059-109447"
  },
  "r434": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(a)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62395-109447"
  },
  "r435": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(b)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62395-109447"
  },
  "r436": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "33",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(a)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62479-109447"
  },
  "r437": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "33",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(b)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62479-109447"
  },
  "r438": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "35A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(a)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=SL6807758-109447"
  },
  "r439": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "35A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(b)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=SL6807758-109447"
  },
  "r44": {
   "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"
  },
  "r440": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(c)(1)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e61872-109447"
  },
  "r441": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(c)(2)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e61872-109447"
  },
  "r442": {
   "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"
  },
  "r443": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(1)(a))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r444": {
   "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"
  },
  "r445": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(13))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r446": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(15)(5))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r447": {
   "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"
  },
  "r448": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(22))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r449": {
   "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"
  },
  "r45": {
   "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"
  },
  "r450": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03.10(3))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r451": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03.15(3),(4))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r452": {
   "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"
  },
  "r453": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04(13)(f))",
   "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(15))",
   "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(22))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260"
  },
  "r456": {
   "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"
  },
  "r457": {
   "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"
  },
  "r458": {
   "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"
  },
  "r459": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "470",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823"
  },
  "r46": {
   "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"
  },
  "r460": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(10))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910"
  },
  "r461": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(16))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910"
  },
  "r462": {
   "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"
  },
  "r463": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(15)(5))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910"
  },
  "r464": {
   "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"
  },
  "r465": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(2))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910"
  },
  "r466": {
   "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"
  },
  "r467": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(24))",
   "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)(25))",
   "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)(8))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910"
  },
  "r47": {
   "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"
  },
  "r470": {
   "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"
  },
  "r471": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03.17)",
   "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 210.7-03.3)",
   "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": "220",
   "Subparagraph": "(SX 210.7-04(10))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=116637232&loc=SL114874131-224263"
  },
  "r474": {
   "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"
  },
  "r475": {
   "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"
  },
  "r476": {
   "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"
  },
  "r477": {
   "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"
  },
  "r478": {
   "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"
  },
  "r479": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13H",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "40",
   "Subparagraph": "(b)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=117419784&loc=SL117783719-158441"
  },
  "r48": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(8))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r480": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.6-04.16)",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=6488278&loc=d3e603758-122996"
  },
  "r481": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.6-07.1(c))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=116637345&loc=SL114874292-224272"
  },
  "r482": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "310",
   "Subparagraph": "(SX 210.12-29(Footnote 4))",
   "Topic": "948",
   "URI": "http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014"
  },
  "r483": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "210",
   "Topic": "954",
   "URI": "http://asc.fasb.org/extlink&oid=116631420&loc=SL116631458-115580"
  },
  "r484": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "360",
   "Subparagraph": "(SX 210.12-28(Footnote 2))",
   "Topic": "970",
   "URI": "http://asc.fasb.org/extlink&oid=6590653&loc=d3e638233-123024"
  },
  "r485": {
   "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"
  },
  "r486": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "b"
  },
  "r487": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "d1-1"
  },
  "r488": {
   "Name": "Form 10-Q",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "13",
   "Subsection": "a-13"
  },
  "r489": {
   "Name": "Forms 10-K, 10-Q, 20-F",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "13",
   "Subsection": "a-1-"
  },
  "r49": {
   "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"
  },
  "r490": {
   "Name": "Regulation 12B",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "b-2"
  },
  "r491": {
   "Name": "Regulation S-T",
   "Number": "232",
   "Publisher": "SEC",
   "Section": "405"
  },
  "r5": {
   "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"
  },
  "r50": {
   "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"
  },
  "r51": {
   "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"
  },
  "r52": {
   "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"
  },
  "r53": {
   "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"
  },
  "r54": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.19(a))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r55": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.19(b),22(b))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r56": {
   "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"
  },
  "r57": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.19,20)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r58": {
   "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"
  },
  "r59": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.20)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r6": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "205",
   "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=d3e1361-107760"
  },
  "r60": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.21)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r61": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.22(a)(1))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r62": {
   "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"
  },
  "r63": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.24)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r64": {
   "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"
  },
  "r65": {
   "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"
  },
  "r66": {
   "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"
  },
  "r67": {
   "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"
  },
  "r68": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.8)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r69": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.9)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r7": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "205",
   "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=d3e1474-107760"
  },
  "r70": {
   "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"
  },
  "r71": {
   "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"
  },
  "r72": {
   "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"
  },
  "r73": {
   "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"
  },
  "r74": {
   "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"
  },
  "r75": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580"
  },
  "r76": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a),(b),(c)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580"
  },
  "r77": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a-c)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580"
  },
  "r78": {
   "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"
  },
  "r79": {
   "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"
  },
  "r8": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "205",
   "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=SL51721659-107760"
  },
  "r80": {
   "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"
  },
  "r81": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=d3e640-108580"
  },
  "r82": {
   "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"
  },
  "r83": {
   "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"
  },
  "r84": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=d3e689-108580"
  },
  "r85": {
   "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"
  },
  "r86": {
   "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"
  },
  "r87": {
   "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"
  },
  "r88": {
   "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"
  },
  "r89": {
   "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"
  },
  "r9": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "205",
   "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=SL51721663-107760"
  },
  "r90": {
   "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"
  },
  "r91": {
   "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"
  },
  "r92": {
   "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"
  },
  "r93": {
   "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"
  },
  "r94": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(1))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r95": {
   "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"
  },
  "r96": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(12))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r97": {
   "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"
  },
  "r98": {
   "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"
  },
  "r99": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(4))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  }
 },
 "version": "2.1"
}
