Acquisition - Schedule of Fair Value of Assets Acquired and Liabilities Assumed (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Panhandle 1 [Member]
Jun. 25, 2014
E1 Arrayan [Member]
Business Acquisition [Line Items]    
Cash and cash equivalents $ 1,038 $ 713
Trade receivables 1,850 3,829
Related party receivable   56
VAT receivable   17,031
Prepaid expenses and other current assets 71 174
Restricted cash 14,293 10,392
Property, plant and equipment 332,953 341,790
Intangible assets   1,121
Deferred tax assets   5,455
Accounts payable and other accrued liabilities (148) (6,830)
Accrued construction costs (12,806) (9,868)
Related party payable (44) (56)
Derivative liabilities, current   (1,942)
Current portion of long-term debt   (705)
Short-term debt   (15,881)
Accrued interest   (2,592)
Long-term debt   (209,295)
Derivative liabilities, non-current   (501)
Asset retirement obligation (2,557) (2,354)
Deferred tax liabilities   (13,001)
Total consideration before non-controlling interest 334,650 117,536
Less: tax equity noncontrolling interest contributions (210,250) (35,260)
Total consideration after non-controlling interest $ 124,400 $ 82,276