Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 66,262	$ 195,808
Restricted cash and cash equivalents (primarily related to VIEs)	97,480	91,962
Receivables:
Trade less allowance for credit losses of $200 and $90 respectively (primarily related to VIEs)	147,328	208,704
Other	44,568	44,530
Inventories	44,647	45,037
Costs and estimated earnings in excess of billings on uncompleted contracts	29,719	18,367
Prepaid expenses and other	86,991	41,595
Total current assets	516,995	646,003
Investment in unconsolidated companies	129,664	125,439
Deposits and other	48,737	44,631
Deferred income taxes	186,194	152,570
Property, plant and equipment, net ($3,115,955 and $2,802,920 related to VIEs, respectively)	3,328,676	2,998,949
Construction-in-process ($292,650 and $376,602 related to VIEs, respectively)	799,868	814,967
Operating leases right of use ($8,795 and $9,326 related to VIEs, respectively)	26,192	24,057
Finance leases right of use (none related to VIEs)	2,887	3,510
Intangible assets, net	316,515	307,609
Goodwill	151,074	90,544
Total assets	5,506,802	5,208,279
Current liabilities:
Accounts payable and accrued expenses	183,386	214,518
Commercial paper (less deferred financing costs of $26 and $29, respectively)	99,974	99,971
Billings in excess of costs and estimated earnings on uncompleted contracts	16,277	18,669
Current portion of long-term debt:
Financing liability	3,620	5,141
Operating lease liabilities	4,041	3,329
Finance lease liabilities	1,267	1,313
Total current liabilities	530,732	537,012
Long-term debt, net of current portion:
Limited and non-recourse (primarily related to VIEs and less deferred financing costs of $8,739 and $7,889, respectively)	540,995	447,389
Full recourse (less deferred financing costs of $5,002 and $3,056, respectively)	839,253	698,187
Convertible senior notes (less deferred financing costs of $6,982 and $8,146, respectively)	424,268	423,104
Financing liability	219,682	220,619
Operating lease liabilities	20,480	19,790
Finance lease liabilities	1,684	2,238
Liability associated with sale of tax benefits	167,188	184,612
Deferred income taxes	78,850	66,748
Liability for unrecognized tax benefits	7,520	8,673
Liabilities for severance pay	10,009	11,844
Asset retirement obligation	125,035	114,370
Other long-term liabilities	33,858	22,107
Total liabilities	2,999,554	2,756,693
Commitments and contingencies (Note 9)
Redeemable noncontrolling interest	9,985	10,599
Equity:
Common stock, par value $0.001 per share; 200,000,000 shares authorized; 60,453,143 and 60,358,887 issued and outstanding as of June 30, 2024 and December 31, 2023, respectively	61	60
Additional paid-in capital	1,624,763	1,614,769
Treasury stock, at cost (258,667 shares held as of June 30, 2024 and December 31, 2023, respectively)	(17,964)	(17,964)
Retained earnings	766,137	719,894
Accumulated other comprehensive income (loss)	(1,754)	(1,332)
Total stockholders' equity attributable to Company's stockholders	2,371,243	2,315,427
Noncontrolling interest	126,020	125,560
Total equity	2,497,263	2,440,987
Total liabilities, redeemable noncontrolling interest and equity	5,506,802	5,208,279
Senior Secured Notes
Current portion of long-term debt:
Limited and non-recourse (primarily related to VIEs)	67,921	57,207
Senior Unsecured Bonds
Current portion of long-term debt:
Full recourse	154,246	116,864
Revolving Credit Facility
Current liabilities:
Short term revolving credit lines with banks (full recourse)	$ 0	$ 20,000