Acquisitions - Schedule of Proforma Data (Details) - Tsugaru Holdings [Member] - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2018 |
Jun. 30, 2017 |
Jun. 30, 2018 |
Jun. 30, 2017 |
|
| Business Acquisition, Pro Forma Information [Abstract] | ||||
| Pro forma total revenue | $ 139,940 | $ 115,185 | $ 255,334 | $ 222,228 |
| Pro forma total expenses | (141,714) | (130,957) | (269,068) | (235,797) |
| Pro forma net loss | (1,774) | (15,772) | (13,734) | (13,569) |
| Less: pro forma net loss attributable to noncontrolling interest | (34,492) | (28,759) | (182,828) | (31,801) |
| Pro forma net income attributable to Pattern Energy | 32,718 | $ 12,987 | 169,094 | $ 18,232 |
| Business Acquisition, Pro Forma Information, Since Date Of Acquisition [Abstract] | ||||
| Total revenue | 29,059 | 49,937 | ||
| Total expenses | (26,324) | (46,829) | ||
| Net income | 2,735 | 3,108 | ||
| Less: net loss attributable to noncontrolling interest | (17,004) | (38,577) | ||
| Net income attributable to Pattern Energy | $ 19,739 | $ 41,685 | ||