Consolidated Balance Sheets (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Current assets:    
Cash and cash equivalents $ 100,343 $ 103,569
Trade receivables 27,114 20,951
Related party receivable 380 167
Reimbursable interconnection costs 38 1,455
Derivative assets, current 11,906 13,937
Current deferred tax assets 573 573
Prepaid expenses and other current assets 9,878 13,927
Total current assets 150,232 154,579
Restricted cash 35,375 32,636
Property, plant and equipment - net of accumulated depreciation 1,444,554 1,476,142
Unconsolidated investments 88,546 107,055
Derivative assets 66,935 82,167
Deferred financing costs - net of accumulated amortization 34,911 35,792
Net deferred tax assets 1,656 2,017
Other assets 12,741 13,243
Total assets 1,834,950 1,903,631
Current liabilities:    
Accounts payable and other accrued liabilities 10,329 15,550
Accrued construction costs 3,007 3,204
Related party payable 1,175 1,245
Accrued interest 1,336 495
Dividend payable 11,179 11,103
Derivative liabilities, current 16,205 16,171
Current portion of long-term debt 48,615 48,851
Total current liabilities 91,846 96,619
Long-term debt 1,186,473 1,200,367
Derivative liabilities 7,520 7,439
Asset retirement obligations 21,082 20,834
Net deferred tax liabilities 6,101 9,930
Other long-term liabilities 438 438
Total liabilities 1,313,460 1,335,627
Equity:    
Additional paid-in capital 478,861 489,388
Accumulated loss (28,225) (13,336)
Accumulated other comprehensive loss (22,537) (8,353)
Total equity before noncontrolling interest 428,612 468,210
Noncontrolling interest 92,878 99,794
Total equity 521,490 568,004
Total liabilities and equity 1,834,950 1,903,631
Class A Common Stock [Member]
    
Equity:    
Common stock value 357 355
Class B Common Stock [Member]
    
Equity:    
Common stock value $ 156 $ 156