Condensed Consolidated Balance Sheets (Unaudited) (USD $)	Sep. 30, 2013		Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 35,435,000		$ 66,628,000
Short-term bank deposit			3,010,000
Restricted cash, cash equivalents and marketable securities (all related to variable interest entities ("VIEs"))	84,197,000		76,537,000
Receivables:
Trade	60,526,000		55,680,000
Related entity	442,000		373,000
Other	24,643,000		8,632,000
Due from Parent	373,000		311,000
Inventories	20,396,000		20,669,000
Costs and estimated earnings in excess of billings on uncompleted contracts	36,201,000		9,613,000
Deferred income taxes	162,000		637,000
Prepaid expenses and other	36,724,000		34,144,000
Total current assets	299,099,000		276,234,000
Unconsolidated investments	5,419,000		2,591,000
Deposits and other	31,110,000		36,187,000
Deferred income taxes	15,966,000		21,283,000
Deferred charges	34,635,000		35,351,000
Property, plant and equipment, net ($1,310,022 and $1,188,721 related to VIEs, respectively)	1,383,353,000		1,252,873,000
Construction-in-process ($99,806 and $253,775 related to VIEs, respectively)	335,915,000		396,141,000
Deferred financing and lease costs, net	29,806,000		31,371,000
Intangible assets, net	33,032,000		35,492,000
Total assets	2,168,335,000	[1]	2,087,523,000
Current liabilities:
Accounts payable and accrued expenses	83,751,000		98,001,000
Deferred income taxes	20,428,000		20,392,000
Billings in excess of costs and estimated earnings on uncompleted contracts	12,708,000		25,408,000
Limited and non-recourse (all related to VIEs):
Senior secured notes	30,059,000		28,231,000
Other loans	18,288,000		11,453,000
Full recourse	28,875,000		28,649,000
Total current liabilities	194,109,000		212,134,000
Limited and non-recourse (all related to VIEs):
Senior secured notes	286,786,000		312,926,000
Other loans	272,710,000		242,815,000
Full recourse:
Senior unsecured bonds (plus unamortized premium based upon 7% of $1,205)	250,674,000		250,904,000
Other loans	64,414,000		82,344,000
Revolving credit lines with banks	123,288,000		73,606,000
Liability associated with sale of tax benefits	65,402,000		51,126,000
Deferred lease income	64,217,000		66,398,000
Deferred income taxes	52,233,000		45,059,000
Liability for unrecognized tax benefits	8,878,000		7,280,000
Liabilities for severance pay	23,642,000		22,887,000
Asset retirement obligation	20,436,000		19,289,000
Other long-term liabilities	4,576,000		5,148,000
Total liabilities	1,431,365,000		1,391,916,000
Commitments and contingencies (Note 10)
The Company's stockholders' equity:
Common stock, par value $0.001 per share; 200,000,000 shares authorized; 45,453,801 shares issued and outstanding as of September 30, 2013 and December 31, 2012	46,000		46,000
Additional paid-in capital	737,125,000		732,140,000
Accumulated deficit	(13,066,000)		(44,326,000)
Accumulated other comprehensive income	527,000		651,000
	724,632,000		688,511,000
Noncontrolling interest	12,338,000		7,096,000
Total equity	736,970,000		695,607,000
Total liabilities and equity	2,168,335,000		2,087,523,000
Variable Interest Entity, Primary Beneficiary [Member]
Receivables:
Property, plant and equipment, net ($1,310,022 and $1,188,721 related to VIEs, respectively)	1,310,022,000		1,188,721,000
Construction-in-process ($99,806 and $253,775 related to VIEs, respectively)	$ 99,806,000		$ 253,775,000

[1] Including unconsolidated investments