Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands		Mar. 31, 2023		Dec. 31, 2022
Current assets:
Cash and cash equivalents		$ 414,856		$ 95,872
Restricted cash and cash equivalents (primarily related to VIEs)		107,466		130,804
Receivables:
Trade less allowance for credit losses of $90 and $90, respectively (primarily related to VIEs)		144,199		128,818
Other		36,409		32,415
Inventories		45,447		22,832
Costs and estimated earnings in excess of billings on uncompleted contracts	[1]	17,136		16,405
Prepaid expenses and other		45,474		29,571
Total current assets		810,987		456,717
Investment in unconsolidated companies		119,185		115,693
Deposits and other		36,920		39,762
Deferred income taxes		155,966		161,365
Property, plant and equipment, net		2,541,677		2,493,457
Construction-in-process		905,505		893,198
Operating leases right of use		22,770		23,411
Finance leases right of use		4,277		3,806
Intangible assets, net		327,537		333,845
Goodwill		90,446		90,325
Total assets		5,015,270	[2],[3]	4,611,579
Current liabilities:
Accounts payable and accrued expenses		172,751		149,423
Billings in excess of costs and estimated earnings on uncompleted contracts		24,651		8,785
Current portion of long-term debt:
Limited and non-recourse (primarily related to VIEs)		63,465		64,044
Full recourse		110,706		101,460
Financing liability		15,454		16,270
Operating lease liabilities		2,381		2,347
Finance lease liabilities		1,552		1,581
Total current liabilities		390,960		343,910
Long-term debt, net of current portion:
Financing liability		220,603		225,759
Operating lease liabilities		19,421		19,788
Finance lease liabilities		2,732		2,262
Liability associated with sale of tax benefits		159,305		166,259
Deferred income taxes		78,613		83,465
Liability for unrecognized tax benefits		6,581		6,559
Liabilities for severance pay		12,394		12,833
Asset retirement obligation		99,192		97,660
Other long-term liabilities		11,021		3,317
Total liabilities		2,668,880		2,581,014
Commitments and contingencies (Note 9)
Redeemable noncontrolling interest		9,361		9,590
Equity:
Common stock, par value $0.001 per share; 200,000,000 shares authorized; 59,705,941 and 56,095,918 issued and outstanding as of March 31, 2023 and December 31, 2022, respectively		60		56
Additional paid-in capital		1,560,445		1,259,072
Treasury stock, at cost (258,667 shares held as of March 31, 2023 and December 31, 2022, respectively)		(17,964)		(17,964)
Retained earnings		646,204		623,907
Accumulated other comprehensive income (loss)		(4,209)		2,500
Total stockholders' equity attributable to Company's stockholders		2,184,536		1,867,571
Noncontrolling interest		152,493		153,404
Total equity		2,337,029		2,020,975
Total liabilities, redeemable noncontrolling interest and equity		5,015,270		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 $9,447 and $10,272, respectively)		504,460		521,885
Senior Unsecured Bonds [Member]
Long-term debt, net of current portion:
Full recourse (less deferred financing costs of $3,436 and $2,995, respectively)		742,222		676,512
Convertible Senior Notes [Member]
Long-term debt, net of current portion:
Convertible senior notes (less deferred financing costs of $9,874 and $10,445, respectively)		$ 421,376		$ 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