Condensed Consolidated Statements of Operations and Comprehensive Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenues:
Revenue	$ 166,352	$ 192,113
Cost of revenues:
Cost of revenues	92,705	110,295
Gross profit	73,647	81,818
Operating expenses:
Research and development expenses	876	1,619
Selling and marketing expenses	4,276	4,794
General and administrative expenses	18,606	16,745
Business interruption insurance income	0	(2,397)
Operating income	49,889	61,057
Other income (expense):
Interest income	263	402
Interest expense, net	(19,016)	(17,273)
Derivatives and foreign currency transaction gains (losses)	(16,866)	393
Income attributable to sale of tax benefits	6,355	4,132
Other non-operating income (expense), net	(331)	78
Income from operations before income tax and equity in earnings (losses) of investees	20,294	48,789
Income tax (provision) benefit	(3,007)	(18,148)
Equity in earnings (losses) of investees, net	542	(735)
Net income	17,829	29,906
Net income attributable to noncontrolling interest	(2,570)	(3,873)
Net income attributable to the Company's stockholders	15,259	26,033
Comprehensive income:
Net income	17,829	29,906
Other comprehensive income (loss), net of related taxes:
Change in foreign currency translation adjustments	(1,826)	(645)
Change in unrealized gains or losses in respect of the Company's share in derivatives instruments of unconsolidated investment	3,755	(4,755)
Change in unrealized gains or losses in respect of a cross currency swap derivative instrument that qualifies as a cash flow hedge	(2,798)	0
Change in unrealized gains or losses on marketable securities available-for-sale (net of related tax of $0)	(20)	0
Other changes in comprehensive income	16	5
Comprehensive income	16,956	24,511
Comprehensive income attributable to noncontrolling interest	(1,997)	(3,486)
Comprehensive income attributable to the Company's stockholders	$ 14,959	$ 21,025
Earnings per share attributable to the Company's stockholders:
Basic: (in dollars per share)	$ 0.27	$ 0.51
Diluted: (in dollars per share)	$ 0.27	$ 0.51
Weighted average number of shares used in computation of earnings per share attributable to the Company's stockholders:
Basic (in shares)	55,988	51,036
Diluted (in shares)	56,735	51,526
Electricity [Member]
Revenues:
Revenue	$ 144,988	$ 142,856
Cost of revenues:
Cost of revenues	79,851	71,368
Product [Member]
Revenues:
Revenue	8,643	47,411
Cost of revenues:
Cost of revenues	8,074	36,978
Energy Storage and Management Services [Member]
Revenues:
Revenue	12,721	1,846
Cost of revenues:
Cost of revenues	$ 4,780	$ 1,949