Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 147,448	$ 94,395
Restricted cash and cash equivalents (primarily related to VIEs)	133,418	111,377
Receivables:
Trade less allowance for credit losses of $308 and $224, respectively (primarily related to VIEs)	164,772	164,050
Other	36,711	50,792
Inventories	45,268	38,092
Costs and estimated earnings in excess of billings on uncompleted contracts	30,011	29,243
Prepaid expenses and other	40,141	59,173
Total current assets	597,769	547,122
Investment in unconsolidated companies	162,111	144,585
Deposits and other (primarily related to VIEs)	137,744	75,383
Deferred income taxes	138,903	153,936
Property, plant and equipment, net ($3,460,079 and $3,271,248 related to VIEs, respectively)	3,672,569	3,501,886
Construction-in-process ($392,644 and $251,442 related to VIEs, respectively)	1,048,174	755,589
Operating leases right of use ($17,236 and $13,989 related to VIEs, respectively)	41,756	32,114
Finance leases right of use (none related to VIEs)	4,690	2,841
Intangible assets, net	274,548	301,745
Goodwill	168,244	151,023
Total assets	6,246,508	5,666,224
Current liabilities:
Accounts payable and accrued expenses	234,757	234,334
Short term revolving credit lines with banks (full recourse)	80,000	0
Commercial paper (less deferred financing costs of $17 and $23, respectively)	99,983	99,977
Billings in excess of costs and estimated earnings on uncompleted contracts	13,159	23,091
Current portion of long-term debt:
Limited and non-recourse (primarily related to VIEs):	79,885	70,262
Full recourse	214,207	161,313
Financing liability	9,749	4,093
Operating lease liabilities	4,764	3,633
Finance lease liabilities	1,884	1,375
Total current liabilities	738,388	598,078
Long-term debt, net of current portion:
Limited and non-recourse (primarily related to VIEs and less deferred financing costs of $13,488 and $8,849, respectively)	645,803	578,204
Full recourse (less deferred financing costs of $4,248 and $4,671, respectively)	1,009,090	822,828
Convertible senior notes (less deferred financing costs of $4,103 and $6,820, respectively)	472,334	469,617
Financing liability	206,647	216,476
Operating lease liabilities	29,760	22,523
Finance lease liabilities	2,850	1,529
Liability associated with sale of tax benefits	190,168	152,292
Deferred income taxes	68,661	68,616
Liability for unrecognized tax benefits	10,378	6,272
Liabilities for severance pay	11,942	10,488
Asset retirement obligation	135,574	129,651
Other long-term liabilities	33,637	29,270
Total liabilities	3,555,232	3,105,844
Commitments and contingencies (Note 20)
Redeemable noncontrolling interest	10,402	9,448
The Company's stockholders' equity:
Common stock, par value $0.001 per share; 200,000,000 shares authorized; 60,845,411 and 60,500,580 issued and outstanding as of December 31, 2025 and December 31, 2024, respectively	61	61
Additional paid-in capital	1,654,635	1,635,245
Treasury stock, at cost (258,667 shares held as of December 31, 2025 and 2024, respectively)	(17,964)	(17,964)
Retained earnings	909,343	814,518
Accumulated other comprehensive loss	(2,132)	(6,731)
Total stockholders' equity attributable to Company's stockholders	2,543,943	2,425,129
Noncontrolling interest	136,931	125,803
Total equity	2,680,874	2,550,932
Total liabilities, redeemable noncontrolling interest and equity	$ 6,246,508	$ 5,666,224