Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands		Mar. 31, 2024		Dec. 31, 2023
Current assets:
Cash and cash equivalents		$ 201,506		$ 195,808
Restricted cash and cash equivalents (primarily related to VIEs)		97,455		91,962
Receivables:
Trade less allowance for credit losses of $163 and $90 respectively (primarily related to VIEs)		154,557		208,704
Other		33,916		44,530
Inventories		53,874		45,037
Costs and estimated earnings in excess of billings on uncompleted contracts	[1]	23,616		18,367
Prepaid expenses and other		44,311		41,595
Total current assets		609,235		646,003
Investment in unconsolidated companies		127,386		125,439
Deposits and other		43,832		44,631
Deferred income taxes		173,627		152,570
Property, plant and equipment, net ($3,010,086 and $2,802,920 related to VIEs, respectively)		3,220,246		2,998,949
Construction-in-process		837,205		814,967
Operating leases right of use		27,318		24,057
Finance leases right of use		3,216		3,510
Intangible assets, net		323,657		307,609
Goodwill		151,122		90,544
Total assets		5,516,844	[2],[3]	5,208,279
Current liabilities:
Accounts payable and accrued expenses		197,035		214,518
Commercial paper (less deferred financing costs of $28 and $29, respectively)		99,972		99,971
Billings in excess of costs and estimated earnings on uncompleted contracts		21,376		18,669
Current portion of long-term debt:
Limited and non-recourse (primarily related to VIEs)		68,211		57,207
Full recourse		150,835		116,864
Financing liability		3,620		5,141
Operating lease liabilities		3,914		3,329
Finance lease liabilities		1,291		1,313
Total current liabilities		546,254		537,012
Long-term debt, net of current portion:
Financing liability		219,682		220,619
Operating lease liabilities		22,273		19,790
Finance lease liabilities		1,979		2,238
Liability associated with sale of tax benefits		175,586		184,612
Deferred income taxes		74,967		66,748
Liability for unrecognized tax benefits		9,255		8,673
Liabilities for severance pay		10,703		11,844
Asset retirement obligation		123,087		114,370
Other long-term liabilities		28,954		22,107
Total liabilities		3,030,213		2,756,693
Commitments and contingencies (Note 9)
Redeemable noncontrolling interest		10,112		10,599
Equity:
Common stock, par value $0.001 per share; 200,000,000 shares authorized; 60,421,682 and 60,358,887 issued and outstanding as of March 31, 2024 and December 31, 2022, respectively		60		60
Additional paid-in capital		1,619,593		1,614,769
Treasury stock, at cost (258,667 shares held as of March 31, 2024 and December 31, 2023, respectively)		(17,964)		(17,964)
Retained earnings		751,238		719,894
Accumulated other comprehensive income (loss)		(843)		(1,332)
Total stockholders' equity attributable to Company's stockholders		2,352,084		2,315,427
Noncontrolling interest		124,435		125,560
Total equity		2,476,519		2,440,987
Total liabilities, redeemable noncontrolling interest and equity		5,516,844		5,208,279
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 $9,128 and $7,889, respectively)		557,946		447,389
Senior Unsecured Bonds [Member]
Long-term debt, net of current portion:
Full recourse (less deferred financing costs of $4,877 and $3,056, respectively)		835,841		698,187
Convertible Senior Notes [Member]
Long-term debt, net of current portion:
Convertible senior notes (less deferred financing costs of $7,564 and $8,146, respectively)		423,686		423,104
Revolving Credit Facility [Member]
Current liabilities:
Short term revolving credit lines with banks (full recourse)		$ 0		$ 20,000

[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 $146.5 million and $85.8 million as of March 31, 2024 and 2023, respectively. Energy Storage segment assets include goodwill in the amount of $4.6 million and $4.6 million as of March 31, 2024 and 2023, respectively. No goodwill is included in the Product segment assets as of March 31, 2024 and 2023.

[3] Intersegment revenues are fully eliminated in consolidation.