v3.5.0.2
Segment and geographic information (Detail)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2016
USD ($)
Sep. 30, 2015
USD ($)
Sep. 30, 2016
USD ($)
segment
Sep. 30, 2015
USD ($)
Dec. 31, 2015
USD ($)
Segment and geographic information          
Number of Reportable Segments | segment     4    
Project revenues $ 101.2 $ 107.5 $ 305.8 $ 321.8  
Segment assets 1,521.9 1,910.2 1,521.9 1,910.2 $ 1,671.2
Project Adjusted EBITDA 51.3 56.0 159.9 158.5  
Change in fair value of derivative instruments (9.0) (3.6) (20.1) (8.7)  
Depreciation and amortization 30.4 32.8 90.8 98.9  
Interest, net (2.8) (2.5) (8.2) 7.7  
Impairment charges 84.7   84.7    
Other project (income) expense (0.5) 0.1 (0.4) (2.4)  
Project (loss) income (57.1) 24.2 (3.3) 63.0  
Administration 5.7 6.9 17.6 23.0  
Interest, net. (20.0) (41.0) (87.9) (91.3)  
Foreign exchange (gain) loss (3.4) (21.7) 19.1 (49.1)  
Other income, net (1.7)   (3.9) (3.1)  
Income (loss) from continuing operations before income taxes (77.7) (2.0) (124.0) 0.9  
Income tax expense (benefit) 2.6 1.4 (14.2) (0.3)  
Net income (loss) from continuing operations (80.3) (3.4) (109.8) 1.2  
East U.S.          
Segment and geographic information          
Project revenues 31.3 38.4 104.3 114.8  
Segment assets 764.9 849.7 764.9 849.7  
Project Adjusted EBITDA 19.4 27.4 70.5 81.0  
Change in fair value of derivative instruments (1.2) 1.9 (3.0) 1.6  
Depreciation and amortization 11.0 10.7 33.0 31.8  
Interest, net (2.8) (2.4) (8.2) 7.6  
Impairment charges 15.4   15.4    
Project (loss) income (8.6) 12.4 16.9 40.0  
Income (loss) from continuing operations before income taxes (8.6) 12.4 16.9 40.0  
Net income (loss) from continuing operations (8.6) 12.4 16.9 40.0  
West U.S.          
Segment and geographic information          
Project revenues 34.1 34.5 78.7 83.9  
Segment assets 328.9 368.2 328.9 368.2  
Project Adjusted EBITDA 21.3 21.4 43.4 37.1  
Depreciation and amortization 9.9 9.9 29.6 29.7  
Other project (income) expense       0.1  
Project (loss) income 11.4 11.5 13.8 7.3  
Income (loss) from continuing operations before income taxes 11.4 11.5 13.8 7.3  
Net income (loss) from continuing operations 11.4 11.5 13.8 7.3  
Canada          
Segment and geographic information          
Project revenues 35.6 34.4 122.0 122.6  
Segment assets 325.3 569.5 325.3 569.5  
Project Adjusted EBITDA 10.7 7.6 46.2 43.0  
Change in fair value of derivative instruments (5.6) (6.1) (17.7) (11.6)  
Depreciation and amortization 9.4 11.7 27.7 36.5  
Interest, net   (0.1)   0.1  
Impairment charges 69.3   69.3    
Other project (income) expense       0.1  
Project (loss) income (62.4) 1.9 (33.1) 17.9  
Income (loss) from continuing operations before income taxes (62.4) 1.9 (33.1) 17.9  
Net income (loss) from continuing operations (62.4) 1.9 (33.1) 17.9  
Un-Allocated Corporate          
Segment and geographic information          
Project revenues 0.2 0.2 0.8 0.5  
Segment assets 102.8 122.8 102.8 122.8  
Project Adjusted EBITDA (0.1) (0.4) (0.2) (2.6)  
Change in fair value of derivative instruments (2.2) 0.6 0.6 1.3  
Depreciation and amortization 0.1 0.5 0.5 0.9  
Other project (income) expense (0.5) 0.1 (0.4) (2.6)  
Project (loss) income 2.5 (1.6) (0.9) (2.2)  
Administration 5.7 6.9 17.6 23.0  
Interest, net. (20.0) (41.0) (87.9) (91.3)  
Foreign exchange (gain) loss (3.4) (21.7) 19.1 (49.1)  
Other income, net (1.7)   (3.9) (3.1)  
Income (loss) from continuing operations before income taxes (18.1) (27.8) (121.6) (64.3)  
Income tax expense (benefit) 2.6 1.4 (14.2) (0.3)  
Net income (loss) from continuing operations $ (20.7) $ (29.2) $ (107.4) $ (64.0)