Consolidated Balance Sheets - USD ($) $ in Thousands		Dec. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents		$ 230,214	$ 185,919
Restricted cash and cash equivalents		34,262	49,503
Receivables:
Trade		80,807	55,301
Other		17,482	7,885
Inventories		12,000	18,074
Costs and estimated earnings in excess of billings on uncompleted contracts		52,198	25,120
Prepaid expenses and other		45,867	33,334
Total current assets		472,830	375,136
Deposits and other		18,553	17,968
Deferred charges		43,773	42,811
Property, plant and equipment, net		1,556,378	1,559,335
Construction-in-process		306,709	248,835
Deferred financing and lease costs, net		3,923	4,022
Intangible assets, net		52,753	25,875
Goodwill		6,650
Total assets	[1]	2,461,569	2,273,982
Current liabilities:
Accounts payable and accrued expenses		91,650	91,955
Billings in excess of costs and estimated earnings on uncompleted contracts		31,630	33,892
Current portion of long-term debt:
Senior secured notes		32,234	29,930
Other loans		21,495	21,495
Full recourse		12,242	11,229
Total current liabilities		189,251	188,501
Long-term debt, net of current portion:
Senior secured notes (less deferred financing costs of $9,177 and $10,852, respectively)		350,388	294,476
Other loans (less deferred financing costs of $6,409 and $7,492, respectively)		261,845	275,888
Senior unsecured bonds (plus unamortized premium based upon 7% of $0 and $513, respectively and less deferred financing costs of $755 and $283, respectively)		203,577	249,698
Other loans (less deferred financing costs of $1,346 and $435, respectively)		57,063	18,687
Accumulated losses of unconsolidated company in excess of investment		11,081	8,100
Liability associated with sale of tax benefits		54,662	11,665
Deferred lease income		54,561	58,099
Deferred income taxes		35,382	32,654
Liability for unrecognized tax benefits		5,738	10,385
Liabilities for severance pay		18,600	19,323
Asset retirement obligation		23,348	20,856
Other long-term liabilities		21,294	1,776
Total liabilities		1,286,790	1,190,108
Commitments and contingencies (Note 23)
Redeemable nonconrolling interest		4,772
Equity:
Common stock, par value $0.001 per share; 200,000,000 shares authorized; 49,667,340 and 49,107,901 shares issued and outstanding as of December 31, 2016 and December 31, 2015, respectively		50	49
Additional paid-in capital		869,463	849,223
Retained earnings		216,644	148,396
Accumulated other comprehensive income (loss)		(7,732)	(7,667)
		1,078,425	990,001
Noncontrolling interest		91,582	93,873
Total equity		1,170,007	1,083,874
Total liabilities and equity		$ 2,461,569	$ 2,273,982

[1] Including unconsolidated investments