Consolidated Balance Sheets - USD ($) $ in Thousands		Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents		$ 239,278	$ 448,252
Marketable securities at fair value		43,343	0
Restricted cash and cash equivalents (primarily related to VIEs)		104,166	88,526
Receivables:
Trade less allowance for credit losses of $90 and $597, respectively (primarily related to VIEs)		122,944	149,170
Other		18,144	17,987
Inventories		28,445	35,321
Costs and estimated earnings in excess of billings on uncompleted contracts	[1]	9,692	24,544
Prepaid expenses and other		35,920	15,354
Total current assets		601,932	779,154
Investment in unconsolidated companies		105,886	98,217
Deposits and other		78,915	66,989
Deferred income taxes		143,450	119,299
Property, plant and equipment, net		2,294,973	2,099,046
Construction-in-process		721,483	479,315
Operating leases right of use		19,357	16,347
Finance leases right of use		6,414	11,633
Intangible assets, net		363,314	194,421
Goodwill		89,954	24,566
Total assets	[2],[3]	4,425,678	3,888,987
Current liabilities:
Accounts payable and accrued expenses		143,186	152,763
Billings in excess of costs and estimated earnings on uncompleted contracts		9,248	11,179
Current portion of long-term debt:
Limited and non-recourse (primarily related to VIEs):		61,695	60,846
Full recourse		313,846	17,768
Financing liability		10,835	0
Operating lease liabilities		2,564	2,922
Finance lease liabilities		2,782	3,169
Total current liabilities		544,156	248,647
Long-term debt, net of current portion:
Financing liability		242,029	0
Operating lease liabilities		16,462	12,897
Finance lease liabilities		4,361	9,104
Liability associated with sale of tax benefits		134,953	111,476
Deferred income taxes		84,662	87,972
Liability for unrecognized tax benefits		5,730	1,970
Liabilities for severance pay		15,694	18,749
Asset retirement obligation		84,891	63,457
Other long-term liabilities		4,951	6,235
Total liabilities		2,417,888	1,937,720
Commitments and contingencies (Note 21)
Redeemable noncontrolling interest		9,329	9,830
Equity:
Common stock, par value $0.001 per share; 200,000,000 shares authorized; 56,056,450 and 55,983,259 issued and outstanding as of December 31, 2020 and December 31, 2019, respectively		56	56
Additional paid-in capital		1,271,925	1,262,446
Retained earnings		585,209	550,103
Accumulated other comprehensive loss		(2,191)	(6,620)
Total stockholders' equity attributable to Company's stockholders		1,854,999	1,805,985
Noncontrolling interest		143,462	135,452
Total equity		1,998,461	1,941,437
Total liabilities, redeemable noncontrolling interest and equity		4,425,678	3,888,987
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 $11,304 and $13,887, respectively)		539,664	600,123
Senior Unsecured Bonds [Member]
Long-term debt, net of current portion:
Full recourse (less deferred financing costs of $3,659 and $3,436, respectively)		$ 740,335	$ 777,090

[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 consolidated balance sheets. The contract liabilities balance at the beginning of the year was partially recognized as product revenues during the year ended December 31, 2021 as a result of performance obligations that were partially satisfied.

[2] Electricity segment assets include goodwill in the amount of $85.3 million, $20.5 million and $20.1 million as of December 31, 2021, 2020 and 2019, respectively, $65.4 million of which was added in the third quarter of 2021 as a result of the Terra-Gen Transaction as further described under Note 2 to the consolidated financial statements. Energy Storage segment assets include goodwill in the amount of $4.6 million, $4.1 million and $0.0 million as of December 31, 2021, 2020 and 2019, respectively. No goodwill is included in the Product segment assets as of December 31, 2021, 2020 and 2019.

[3] Including unconsolidated investments