Condensed Consolidated Balance Sheets (Unaudited) - USD ($)	Mar. 31, 2016		Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 148,498,000		$ 185,919,000
Restricted cash and cash equivalents (all related to VIEs)	64,129,000		49,503,000
Receivables:
Trade	76,465,000		55,301,000
Other	8,646,000		7,885,000
Inventories	16,795,000		18,074,000
Costs and estimated earnings in excess of billings on uncompleted contracts	29,897,000		25,120,000
Prepaid expenses and other	35,135,000		33,334,000
Total current assets	379,565,000		375,136,000
Deposits and other	17,415,000		17,968,000
Deferred charges	42,613,000		42,811,000
Property, plant and equipment, net	1,570,074,000		1,559,335,000
Construction-in-process	220,981,000		248,835,000
Deferred financing and lease costs, net	4,430,000		4,022,000
Intangible assets, net	25,056,000		25,875,000
Total assets	2,260,134,000	[1]	2,273,982,000
LIABILITIES AND EQUITY
Accounts payable and accrued expenses	82,487,000		$ 91,955,000
Short term revolving credit lines with banks (full recourse)	9,000,000
Billings in excess of costs and estimated earnings on uncompleted contracts	30,917,000		$ 33,892,000
Current portion of long-term debt:
Senior secured notes	29,917,000		29,930,000
Other loans	21,495,000		21,495,000
Full recourse	11,229,000		11,229,000
Total current liabilities	185,045,000		188,501,000
Long-term debt, net of current portion:
Senior secured notes (less deferred financing costs of $10,549 and $10,852, respectively)	290,201,000		294,476,000
Other loans (less deferred financing costs of $7,137 and $7,492, respectively)	270,869,000		275,888,000
Senior unsecured bonds (plus unamortized premium based upon 7% of $436 and $513, respectively and less deferred financing costs of $239 and $283, respectively)	249,665,000		249,698,000
Other loans (less deferred financing costs of $420 and $435, respectively)	17,036,000		18,687,000
Accumulated losses of unconsolidated company in excess of investment	12,216,000		8,100,000
Liability associated with sale of tax benefits	6,714,000		11,665,000
Deferred lease income	57,516,000		58,099,000
Deferred income taxes	16,502,000		32,654,000
Liability for unrecognized tax benefits	10,639,000		10,385,000
Liabilities for severance pay	19,118,000		19,323,000
Asset retirement obligation	21,262,000		20,856,000
Other long-term liabilities	5,018,000		1,776,000
Total liabilities	1,161,801,000		1,190,108,000
Equity:
Common stock, par value $0.001 per share; 200,000,000 shares authorized; 49,320,335 and 49,107,901 shares issued and outstanding as of March 31, 2016 and December 31, 2015, respectively	49,000		49,000
Additional paid-in capital	854,260,000		849,223,000
Retained earnings	162,195,000		148,396,000
Accumulated other comprehensive income	(581,000)		(7,667,000)
	1,005,655,000		990,001,000
Noncontrolling interest	92,678,000		93,873,000
Total equity	1,098,333,000		1,083,874,000
Total liabilities and equity	$ 2,260,134,000		$ 2,273,982,000

[1] Including unconsolidated investments