{"cik":1126874,"taxonomy":"us-gaap","tag":"DeferredIncomeTaxAssetsNet","label":"Deferred Income Tax Assets, Net","description":"Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting.","entityName":"ENERPLUS CORPORATION","units":{"CAD":[{"end":"2013-12-31","val":412887000,"accn":"0001047469-16-010227","fy":2015,"fp":"FY","form":"40-F","filed":"2016-02-19","frame":"CY2013Q4I"},{"end":"2014-12-31","val":297312000,"accn":"0001047469-16-010227","fy":2015,"fp":"FY","form":"40-F","filed":"2016-02-19"},{"end":"2014-12-31","val":297312000,"accn":"0001558370-17-000938","fy":2016,"fp":"FY","form":"40-F","filed":"2017-02-24","frame":"CY2014Q4I"},{"end":"2015-12-31","val":516085000,"accn":"0001047469-16-010227","fy":2015,"fp":"FY","form":"40-F","filed":"2016-02-19"},{"end":"2015-12-31","val":516085000,"accn":"0001558370-17-000938","fy":2016,"fp":"FY","form":"40-F","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":733363000,"accn":"0001558370-17-000938","fy":2016,"fp":"FY","form":"40-F","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":569937000,"accn":"0001558370-20-001124","fy":2019,"fp":"FY","form":"40-F","filed":"2020-02-21","frame":"CY2017Q4I"},{"end":"2018-12-31","val":465124000,"accn":"0001558370-20-001124","fy":2019,"fp":"FY","form":"40-F","filed":"2020-02-21"},{"end":"2018-12-31","val":465124000,"accn":"0001558370-21-001245","fy":2020,"fp":"FY","form":"40-F","filed":"2021-02-19","frame":"CY2018Q4I"},{"end":"2019-12-31","val":372502000,"accn":"0001558370-20-001124","fy":2019,"fp":"FY","form":"40-F","filed":"2020-02-21"},{"end":"2019-12-31","val":372502000,"accn":"0001558370-21-001245","fy":2020,"fp":"FY","form":"40-F","filed":"2021-02-19","frame":"CY2019Q4I"},{"end":"2020-12-31","val":607001000,"accn":"0001558370-21-001245","fy":2020,"fp":"FY","form":"40-F","filed":"2021-02-19","frame":"CY2020Q4I"}],"USD":[{"end":"2019-12-31","val":286760000,"accn":"0001558370-22-001987","fy":2021,"fp":"FY","form":"40-F","filed":"2022-02-25","frame":"CY2019Q4I"},{"end":"2020-12-31","val":477014000,"accn":"0001558370-22-001987","fy":2021,"fp":"FY","form":"40-F","filed":"2022-02-25"},{"end":"2020-12-31","val":477014000,"accn":"0001558370-23-001930","fy":2022,"fp":"FY","form":"40-F","filed":"2023-02-23","frame":"CY2020Q4I"},{"end":"2021-12-31","val":380858000,"accn":"0001558370-22-001987","fy":2021,"fp":"FY","form":"40-F","filed":"2022-02-25"},{"end":"2021-12-31","val":380858000,"accn":"0001558370-23-001930","fy":2022,"fp":"FY","form":"40-F","filed":"2023-02-23"},{"end":"2021-12-31","val":380858000,"accn":"0001558370-24-001446","fy":2023,"fp":"FY","form":"40-F","filed":"2024-02-21","frame":"CY2021Q4I"},{"end":"2022-12-31","val":154998000,"accn":"0001558370-23-001930","fy":2022,"fp":"FY","form":"40-F","filed":"2023-02-23"},{"end":"2022-12-31","val":154998000,"accn":"0001558370-24-001446","fy":2023,"fp":"FY","form":"40-F","filed":"2024-02-21","frame":"CY2022Q4I"},{"end":"2023-12-31","val":133023000,"accn":"0001558370-24-001446","fy":2023,"fp":"FY","form":"40-F","filed":"2024-02-21","frame":"CY2023Q4I"}]}}