Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands		Mar. 31, 2020		Dec. 31, 2019
Current assets:
Cash and cash equivalents		$ 231,149		$ 71,173
Restricted cash and cash equivalents (primarily related to VIEs)		88,627		81,937
Receivables:
Trade less allowance for credit losses of $779 and $0, respectively (primarily related to VIEs)		168,924		154,525
Other		27,718		22,048
Inventories		34,107		34,949
Costs and estimated earnings in excess of billings on uncompleted contracts	[1]	22,305		38,365
Prepaid expenses and other		11,456		12,667
Total current assets		584,286		415,664
Investment in unconsolidated companies		76,008		81,140
Deposits and other		37,734		38,284
Deferred income taxes		118,682		129,510
Property, plant and equipment, net		1,981,086		1,971,415
Construction-in-process		413,789		376,555
Operating leases right of use		17,611		17,405
Finance leases right of use		14,149		14,161
Intangible assets, net		182,305		186,220
Goodwill		19,963		20,140
Total assets		3,445,613	[2],[3]	3,250,494
Current liabilities:
Accounts payable and accrued expenses		140,867		141,857
Short term revolving credit lines with banks (full recourse)		270,500		40,550
Commercial paper		8,275		50,000
Billings in excess of costs and estimated earnings on uncompleted contracts		5,937		2,755
Current portion of long-term debt:
Senior secured notes		24,617		24,473
Other loans		34,408		34,458
Full recourse		76,572		76,572
Operating lease liabilities		2,974		2,743
Finance lease liabilities		3,169		3,068
Total current liabilities		567,319		376,476
Long-term debt, net of current portion:
Senior secured notes (less deferred financing costs of $6,049 and $6,317, respectively)		331,077		339,336
Other loans (less deferred financing costs of $9,872 and $10,482, respectively)		309,588		317,395
Senior unsecured bonds (less deferred financing costs of $623 and $675, respectively)		286,505		286,453
Other loans (less deferred financing costs of $1,475 and $1,519, respectively)		68,789		68,747
Operating lease liabilities		14,035		14,008
Finance lease liabilities		11,230		11,209
Liability associated with sale of tax benefits		121,627		123,468
Deferred income taxes		100,969		97,126
Liability for unrecognized tax benefits		14,560		14,643
Liabilities for severance pay		18,208		18,751
Asset retirement obligation		50,786		50,183
Other long-term liabilities		7,867		8,039
Total liabilities		1,902,560		1,725,834
Commitments and contingencies (Note 9)
Redeemable noncontrolling interest		9,402		9,250
Equity:
Common stock, par value $0.001 per share; 200,000,000 shares authorized; 51,035,718 and 51,031,652 issued and outstanding as of March 31, 2020 and December 31, 2019, respectively		51		51
Additional paid-in capital		915,139		913,150
Retained earnings		507,537		487,873
Accumulated other comprehensive income (loss)		(13,662)		(8,654)
Total stockholders' equity attributable to Company's stockholders		1,409,065		1,392,420
Noncontrolling interest		124,586		122,990
Total equity		1,533,651		1,515,410
Total liabilities, redeemable noncontrolling interest and equity		$ 3,445,613		$ 3,250,494

[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.

[2] Electricity segment assets include goodwill in the amount of $20.0 million and $20.1 million as of March 31, 2020 and 2019, respectively. No goodwill is included in the Product and ESMS segment assets as of March 31, 2020 and 2019.

[3] Including unconsolidated investments 76,008 76,008