Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012		Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 66,628		$ 99,886
Marketable securities			18,521
Short-term bank deposit	3,010
Restricted cash, cash equivalents and marketable securities (all related to VIEs)	76,537		75,521
Receivables:
Trade	55,680		51,274
Related entity	373		287
Other	8,632		9,415
Due from parent	311		260
Inventories	20,669		12,541
Costs and estimated earnings in excess of billings on uncompleted contracts	9,613		3,966
Deferred income taxes	637		1,842
Prepaid expenses and other	34,144		18,672
Total current assets	276,234		292,185
Unconsolidated investments	2,591		3,757
Deposits and other	36,187		22,194
Deferred income taxes	53,989
Deferred charges	35,351		40,236
Property, plant and equipment, net ($1,162,606 and $1,477,580 related to VIEs, respectively)	1,226,758		1,518,532
Construction-in-process ($253,775 and $271,859 related to VIEs, respectively)	396,141		370,551
Deferred financing and lease costs, net	31,371		28,482
Intangible assets, net	35,492		38,781
Total assets	2,094,114	[1]	2,314,718	[2]
Current liabilities:
Accounts payable and accrued expenses	98,001		105,112
Deferred income taxes	20,392
Billings in excess of costs and estimated earnings on uncompleted contracts	25,408		33,104
Limited and non-recourse (all related to VIEs):
Senior secured notes	28,231		21,464
Other loans	11,453		13,547
Full recourse	28,649		20,543
Total current liabilities	212,134		193,770
Limited and non-recourse (all related to VIEs):
Senior secured notes	312,926		341,157
Other loans	242,815		100,585
Full recourse:
Senior unsecured bonds (plus unamortized premium based upon 7% of $1,436)	250,904		250,042
Other loans	82,344		63,623
Revolving credit lines with banks	73,606		214,049
Liability associated with sale of tax benefits	51,126		69,269
Deferred lease income	66,398		68,955
Deferred income taxes	45,059		54,665
Liability for unrecognized tax benefits	7,280		5,875
Liabilities for severance pay	22,887		20,547
Asset retirement obligation	19,289		21,284
Other long-term liabilities	5,148		4,253
Total liabilities	1,391,916		1,408,074
Commitments and contingencies
The Company's stockholders' equity:
Common stock, par value $0.001 per share; 200,000,000 shares authorized; 45,430,886 shares issued and outstanding as of December 31, 2012 and 2011	46		46
Additional paid-in capital	732,140		725,746
Retained earnings	(37,735)		172,331
Accumulated other comprehensive income	651		595
Stockholders' equity	695,102		898,718
Noncontrolling interest	7,096		7,926
Total equity	702,198		906,644
Total liabilities and equity	$ 2,094,114		$ 2,314,718

[1] Including unconsolidated investments 2,591 - 2,591

[2] Including unconsolidated investments 2,215 1,542 3,757