Consolidated Balance Sheets - USD ($) $ in Thousands		Dec. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents		$ 98,802	$ 47,818
Restricted cash and cash equivalents		78,693	48,825
Receivables:
Trade		137,581	110,410
Other		19,393	13,828
Inventories		45,024	19,551
Contract assets (*)	[1]	42,130	40,945
Prepaid expenses and other		51,441	40,269
Total current assets		473,064	321,646
Investment in an unconsolidated company		71,983	34,084
Deposits and other		18,209	21,599
Deferred income taxes		113,760	57,337
Deferred charges			49,834
Property, plant and equipment, net		1,959,578	1,734,691
Construction-in-process		261,690	293,542
Deferred financing and lease costs, net		3,242	4,674
Intangible assets, net		199,874	85,420
Goodwill		19,950	21,037
Total assets	[2]	3,121,350	2,623,864
Current liabilities:
Accounts payable and accrued expenses		116,362	153,796
Short term revolving credit lines with banks (full recourse)		159,000	51,500
Billings in excess of costs and estimated earnings on uncompleted contracts		18,402	20,241
Current portion of long-term debt:
Senior secured notes		33,493	33,226
Other loans		29,687	21,495
Full recourse		5,000	3,087
Total current liabilities		361,944	283,345
Long-term debt, net of current portion:
Senior secured notes (less deferred financing costs of $7,434 and $8,113, respectively)		375,337	311,668
Other loans (less deferred financing costs of $9,354 and $5,258, respectively)		320,242	242,385
Senior unsecured bonds (less deferred financing costs of $758 and $580, respectively)		303,575	203,752
Other loans (less deferred financing costs of $921 and $1,011, respectively)		41,579	46,489
Liability associated with sale of tax benefits		69,893	44,634
Deferred lease income		48,433	51,520
Deferred income taxes		61,323	61,961
Liability for unrecognized tax benefits		11,769	8,890
Liabilities for severance pay		17,994	21,141
Asset retirement obligation		39,475	27,110
Other long-term liabilities		16,087	18,853
Total liabilities		1,667,651	1,321,748
Commitments and contingencies (Note 22)
Redeemable noncontrolling interest		8,603	6,416
Equity:
Common stock, par value $0.001 per share; 200,000,000 shares authorized; 50,699,781 and 50,609,051 shares issued and outstanding as of December 31, 2018 and December 31, 2017, respectively		51	51
Additional paid-in capital		901,363	888,778
Retained earnings		422,222	327,255
Accumulated other comprehensive loss		(3,799)	(4,706)
Total stockholders' equity attributable to Company's stockholders		1,319,837	1,211,378
Noncontrolling interest		125,259	84,322
Total equity		1,445,096	1,295,700
Total liabilities, redeemable noncontrolling interest and equity		$ 3,121,350	$ 2,623,864

[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 sheet.

[2] Electricity segment assets include goodwill in the amount of $20.0 million and $7.6 million as of December 31, 2018 and 2017, respectively. Other segment assets include goodwill in the amount of $0 million and $13.5 million as of December 31, 2018 and 2017, respectively. For further information on goodwill, see Note 9 – Intangible assets and goodwill to the consolidated financial statements.