|
Segment and geographic information (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2012
|
Sep. 30, 2012
|
Jun. 30, 2012
|
Mar. 31, 2012
|
Dec. 31, 2011
|
Sep. 30, 2011
|
Jun. 30, 2011
|
Mar. 31, 2011
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|
| Segment and related information | |||||||||||
| Project revenues | $ 113,952 | $ 106,305 | $ 101,421 | $ 118,699 | $ 79,158 | $ 5,035 | $ 5,107 | $ 4,595 | $ 440,377 | $ 93,895 | $ 1,051 |
| Segment assets | 4,002,652 | 3,248,427 | 4,002,652 | 3,248,427 | 1,013,012 | ||||||
| Goodwill | 334,668 | 343,586 | 334,668 | 343,586 | 12,453 | ||||||
| Capital expenditures | 468,087 | 115,107 | 46,695 | ||||||||
| Project Adjusted EBITDA | 225,570 | 84,911 | 53,915 | ||||||||
| Change in fair value of derivative instruments | 56,579 | 17,152 | 321 | ||||||||
| Depreciation and amortization | 164,958 | 55,608 | 25,493 | ||||||||
| Interest, net | 24,122 | 15,178 | (9,613) | ||||||||
| Other project (income) expense | 11,819 | 2,416 | 3,642 | ||||||||
| Project income (loss) | (6,078) | 18,646 | (7,515) | (36,961) | 1,795 | (6,991) | (1,573) | 1,326 | (31,908) | (5,443) | 14,846 |
| Administration | 28,267 | 37,688 | 16,149 | ||||||||
| Interest, net | 89,868 | 25,953 | 11,701 | ||||||||
| Foreign exchange gain | (547) | (13,838) | 1,014 | ||||||||
| Other income, net (Note 3) | (5,728) | (26) | |||||||||
| Income (loss) from continuing operations before income taxes | (144,862) | (82,922) | (11,964) | ||||||||
| Income tax expense (benefit) | (28,083) | (11,104) | 16,018 | ||||||||
| Net income (loss) from continuing operations | (116,779) | (71,818) | (27,982) | ||||||||
| Income from discontinued operations | (34,515) | 20,106 | 19,319 | 11,549 | (811) | 10,442 | 13,682 | 12,864 | 16,459 | 36,177 | 24,127 |
| Net income (loss) | (100,320) | (35,641) | (3,855) | ||||||||
|
Northeast
|
|||||||||||
| Segment and related information | |||||||||||
| Project revenues | 221,043 | 58,201 | 596 | ||||||||
| Segment assets | 1,126,320 | 1,153,627 | 1,126,320 | 1,153,627 | 285,711 | ||||||
| Goodwill | 135,268 | 135,268 | 135,268 | 135,268 | |||||||
| Capital expenditures | 510 | 965 | 123 | ||||||||
| Project Adjusted EBITDA | 128,611 | 59,299 | 36,030 | ||||||||
| Change in fair value of derivative instruments | 53,765 | 3,624 | 3,470 | ||||||||
| Depreciation and amortization | 78,434 | 30,818 | 15,653 | ||||||||
| Interest, net | 18,373 | 11,512 | 8,321 | ||||||||
| Other project (income) expense | 1,186 | 2,406 | 1,592 | ||||||||
| Project income (loss) | (23,147) | 10,939 | 6,994 | ||||||||
| Income (loss) from continuing operations before income taxes | (23,147) | 10,939 | 6,994 | ||||||||
| Net income (loss) from continuing operations | (23,147) | 10,939 | 6,994 | ||||||||
| Net income (loss) | (23,147) | 10,939 | 6,994 | ||||||||
|
Southeast
|
|||||||||||
| Segment and related information | |||||||||||
| Segment assets | 378,564 | 428,996 | 378,564 | 428,996 | 342,608 | ||||||
| Capital expenditures | 24,914 | 113,826 | 46,397 | ||||||||
| Project Adjusted EBITDA | 8,840 | 6,567 | 7,873 | ||||||||
| Change in fair value of derivative instruments | 2,814 | 13,849 | (3,149) | ||||||||
| Depreciation and amortization | 5,675 | 5,724 | 5,719 | ||||||||
| Interest, net | 55 | (2) | (3) | ||||||||
| Other project (income) expense | 29 | 70 | 135 | ||||||||
| Project income (loss) | 267 | (13,074) | 5,171 | ||||||||
| Income (loss) from continuing operations before income taxes | 267 | (13,074) | 5,171 | ||||||||
| Net income (loss) from continuing operations | 267 | (13,074) | 5,171 | ||||||||
| Income from discontinued operations | 8,341 | 31,774 | 19,524 | ||||||||
| Net income (loss) | 8,608 | 18,700 | 24,695 | ||||||||
|
Northwest
|
|||||||||||
| Segment and related information | |||||||||||
| Project revenues | 59,814 | 8,983 | |||||||||
| Segment assets | 1,198,007 | 798,475 | 1,198,007 | 798,475 | 47,687 | ||||||
| Goodwill | 138,263 | 138,263 | 138,263 | 138,263 | |||||||
| Capital expenditures | 106 | 65 | |||||||||
| Project Adjusted EBITDA | 48,422 | 11,363 | 736 | ||||||||
| Depreciation and amortization | 42,591 | 9,554 | 364 | ||||||||
| Interest, net | 5,110 | 2,877 | (1) | ||||||||
| Other project (income) expense | 7,325 | (206) | 47 | ||||||||
| Project income (loss) | (6,604) | (862) | 326 | ||||||||
| Income (loss) from continuing operations before income taxes | (6,604) | (862) | 326 | ||||||||
| Net income (loss) from continuing operations | (6,604) | (862) | 326 | ||||||||
| Net income (loss) | (6,604) | (862) | 326 | ||||||||
|
Southwest
|
|||||||||||
| Segment and related information | |||||||||||
| Project revenues | 158,092 | 25,414 | |||||||||
| Segment assets | 1,158,853 | 743,574 | 1,158,853 | 743,574 | 222,437 | ||||||
| Goodwill | 57,602 | 66,520 | 57,602 | 66,520 | 8,918 | ||||||
| Capital expenditures | 441,765 | 169 | |||||||||
| Project Adjusted EBITDA | 52,841 | 10,228 | 9,733 | ||||||||
| Depreciation and amortization | 38,110 | 9,442 | 3,713 | ||||||||
| Interest, net | 545 | 750 | 585 | ||||||||
| Other project (income) expense | 2,927 | 26 | 2,524 | ||||||||
| Project income (loss) | 11,259 | 10 | 2,911 | ||||||||
| Income (loss) from continuing operations before income taxes | 11,259 | 10 | 2,911 | ||||||||
| Net income (loss) from continuing operations | 11,259 | 10 | 2,911 | ||||||||
| Income from discontinued operations | 8,118 | 4,403 | 4,603 | ||||||||
| Net income (loss) | 19,377 | 4,413 | 7,514 | ||||||||
|
Un-allocated Corporate
|
|||||||||||
| Segment and related information | |||||||||||
| Project revenues | 1,428 | 1,297 | 455 | ||||||||
| Segment assets | 140,908 | 123,755 | 140,908 | 123,755 | 114,569 | ||||||
| Goodwill | 3,535 | 3,535 | 3,535 | 3,535 | 3,535 | ||||||
| Capital expenditures | 792 | 82 | 175 | ||||||||
| Project Adjusted EBITDA | (13,144) | (2,546) | (457) | ||||||||
| Change in fair value of derivative instruments | (321) | ||||||||||
| Depreciation and amortization | 148 | 70 | 44 | ||||||||
| Interest, net | 39 | 41 | 711 | ||||||||
| Other project (income) expense | 352 | 120 | (656) | ||||||||
| Project income (loss) | (13,683) | (2,456) | (556) | ||||||||
| Administration | 28,267 | 37,688 | 16,149 | ||||||||
| Interest, net | (89,868) | 25,953 | 11,701 | ||||||||
| Foreign exchange gain | 547 | (13,838) | (1,014) | ||||||||
| Other income, net (Note 3) | (5,728) | (26) | |||||||||
| Income (loss) from continuing operations before income taxes | (126,637) | (79,935) | (27,366) | ||||||||
| Income tax expense (benefit) | (28,083) | (11,104) | 16,018 | ||||||||
| Net income (loss) from continuing operations | (98,554) | (68,831) | (43,384) | ||||||||
| Net income (loss) | $ (98,554) | $ (68,831) | $ (43,384) | ||||||||