Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands		Jun. 30, 2023		Dec. 31, 2022
Current assets:
Cash and cash equivalents		$ 275,066		$ 95,872
Restricted cash and cash equivalents (primarily related to VIEs)		120,316		130,804
Receivables:
Trade less allowance for credit losses of $90 and $90, respectively (primarily related to VIEs)		148,060		128,818
Other		35,525		32,415
Inventories		37,900		22,832
Costs and estimated earnings in excess of billings on uncompleted contracts	[1]	21,786		16,405
Prepaid expenses and other		47,328		29,571
Total current assets		685,981		456,717
Investment in unconsolidated companies		126,451		115,693
Deposits and other		41,991		39,762
Deferred income taxes		166,477		161,365
Property, plant and equipment, net		2,836,003		2,493,457
Construction-in-process		714,850		893,198
Operating leases right of use		23,223		23,411
Finance leases right of use		4,365		3,806
Intangible assets, net		320,847		333,845
Goodwill		90,456		90,325
Total assets		5,010,644	[2],[3]	4,611,579
Current liabilities:
Accounts payable and accrued expenses		174,715		149,423
Billings in excess of costs and estimated earnings on uncompleted contracts		18,651		8,785
Current portion of long-term debt:
Limited and non-recourse (primarily related to VIEs)		59,938		64,044
Full recourse		110,070		101,460
Financing liability		15,454		16,270
Operating lease liabilities		2,703		2,347
Finance lease liabilities		1,678		1,581
Total current liabilities		383,209		343,910
Long-term debt, net of current portion:
Financing liability		220,603		225,759
Operating lease liabilities		19,748		19,788
Finance lease liabilities		2,881		2,262
Liability associated with sale of tax benefits		150,212		166,259
Deferred income taxes		74,655		83,465
Liability for unrecognized tax benefits		6,684		6,559
Liabilities for severance pay		12,083		12,833
Asset retirement obligation		102,190		97,660
Other long-term liabilities		23,360		3,317
Total liabilities		2,593,594		2,581,014
Commitments and contingencies (Note 9)
Redeemable noncontrolling interest		10,008		9,590
Equity:
Common stock, par value $0.001 per share; 200,000,000 shares authorized; 60,260,334 and 56,095,918 issued and outstanding as of June 30, 2023 and December 31, 2022, respectively		60		56
Additional paid-in capital		1,609,298		1,259,072
Treasury stock, at cost (258,667 shares held as of June 30, 2023 and December 31, 2022, respectively)		(17,964)		(17,964)
Retained earnings		663,166		623,907
Accumulated other comprehensive income (loss)		(170)		2,500
Total stockholders' equity attributable to Company's stockholders		2,254,390		1,867,571
Noncontrolling interest		152,652		153,404
Total equity		2,407,042		2,020,975
Total liabilities, redeemable noncontrolling interest and equity		5,010,644		4,611,579
Senior Secured Notes [Member]
Long-term debt, net of current portion:
Limited and non-recourse (primarily related to VIEs and less deferred financing costs of $8,483 and $10,272, respectively)		484,078		521,885
Senior Unsecured Bonds [Member]
Long-term debt, net of current portion:
Full recourse (less deferred financing costs of $3,300 and $2,995, respectively)		691,934		676,512
Convertible Senior Notes [Member]
Long-term debt, net of current portion:
Convertible senior notes (less deferred financing costs of $9,293 and $10,445, respectively)		$ 421,957		$ 420,805

[1] Contract assets and contract liabilities are presented as "Costs and estimated earnings in excess of billings on uncompleted contracts" and "Billings in excess of costs and estimated earnings on uncompleted contracts", respectively, on the condensed consolidated balance sheets. The contract liabilities balance at the beginning of the year was not yet fully recognized as product revenues during the three months ended March 31, 2023 as a result of performance obligations having not been fully satisfied yet.

[2] Electricity segment assets include goodwill in the amount of $85.8 million and $86.0 million as of March 31, 2023 and 2022, respectively. Energy Storage segment assets include goodwill in the amount of $4.6 million and $4.6 as of March 31, 2023 and 2022, respectively. No goodwill is included in the Product segment assets as of March 31, 2023 and 2022.

[3] Including unconsolidated investments