Consolidated Statements of Operations (Unaudited) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Revenue:        
Electricity sales $ 64,251 $ 37,950 $ 184,175 $ 130,533
Energy derivative settlements 2,591 2,656 9,309 12,873
Unrealized gain (loss) on energy derivative 3,139 6,659 (11,143) (5,222)
Related party revenue 868 202 2,330 465
Other revenue 670 9,790 1,404 21,157
Total revenue 71,519 57,257 186,075 159,806
Cost of revenue:        
Project expense 23,835 14,592 56,609 42,061
Depreciation and accretion 30,015 21,194 72,476 61,758
Total cost of revenue 53,850 35,786 129,085 103,819
Gross profit 17,669 21,471 56,990 55,987
Operating expenses:        
General and administrative 5,772 214 15,963 563
Related party general and administrative 1,492 3,607 4,155 8,968
Total operating expenses 7,264 3,821 20,118 9,531
Operating income 10,405 17,650 36,872 46,456
Other income (expense):        
Interest expense (17,999) (14,695) (48,427) (48,169)
Equity in (losses) earnings in unconsolidated investments (5,002) 1,845 (21,238) 5,188
Interest rate derivative settlements (1,030) (1,059) (3,082) (1,059)
Unrealized gain (loss) on derivatives 66 776 (6,599) 10,909
Related party income 664   1,736  
Net (loss) gain on transactions (68)   14,469 7,200
Other income, net 145 321 751 2,123
Total other expense (23,224) (12,812) (62,390) (23,808)
Net (loss) income before income tax (12,819) 4,838 (25,518) 22,648
Tax (benefit) provision (3,538) 595 (1,505) (6,799)
Net (loss) income (9,281) 4,243 (24,013) 29,447
Net (loss) income attributable to noncontrolling interest (2,073) 3,248 (13,115) (690)
Net (loss) income attributable to controlling interest (7,208) 995 (10,898) 30,137
Net loss attributable to common stockholders (29,688)   (66,972)  
Unaudited pro forma net income after tax:        
Net income before income tax       22,648
Pro forma tax benefit       (2,232)
Pro forma net income       24,880
Class A Common Stock [Member]
       
Other income (expense):        
Cash dividends declared on Class A common shares (15,258)   (41,395)  
Weighted average number of shares:        
Class A common stock - Basic 40,980,989   38,342,998  
Class A common stock - Diluted 56,860,637   54,201,701  
Earnings (loss) per share        
Basic loss per share $ (0.15)   $ (0.16)  
Diluted loss per share $ (0.15)   $ (0.20)  
Cash dividends declared per common share $ 0.33   $ 0.96  
Class B Common Stock [Member]
       
Other income (expense):        
Deemed dividends on Class B common shares $ (7,222)   $ (14,679)  
Weighted average number of shares:        
Basic and diluted common stock 15,555,000   15,555,000  
Earnings (loss) per share        
Basic and diluted loss per share $ (0.06)   $ (0.30)  
Deemed dividends per Class B common share $ 0.46   $ 0.94