Condensed Consolidated Statements of Operations and Comprehensive Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenues:
Revenue	$ 169,078	$ 146,901	$ 352,788	$ 313,253
Cost of revenues:
Cost of revenues	111,477	94,926	225,282	187,631
Gross profit	57,601	51,975	127,506	125,622
Operating expenses:
Research and development expenses	1,388	1,128	2,452	2,004
Selling and marketing expenses	3,952	3,988	8,317	8,264
General and administrative expenses	13,526	18,240	31,098	36,846
Write-off of Energy Storage projects and assets	128	0	1,954	0
Operating income	38,607	28,619	83,685	78,508
Other income (expense):
Interest income	179	808	521	1,071
Interest expense, net	(20,418)	(18,626)	(41,499)	(37,642)
Derivatives and foreign currency transaction gains (losses)	(3,998)	658	(3,738)	(16,208)
Income attributable to sale of tax benefits	9,527	7,420	17,232	13,775
Other non-operating income (expense), net	(1,260)	(21)	(1,185)	(352)
Income from operations before income tax and equity in earnings (losses) of investees	22,637	18,858	55,016	39,152
Income tax provision	(6,130)	(4,268)	(16,293)	(7,275)
Equity in earnings (losses) of investees, net	(1,562)	605	(985)	1,147
Net income	14,945	15,195	37,738	33,024
Net income attributable to noncontrolling interest	(3,685)	(2,169)	(8,048)	(4,739)
Net income attributable to the Company's stockholders	11,260	13,026	29,690	28,285
Comprehensive income:
Net income	14,945	15,195	37,738	33,024
Other comprehensive income (loss), net of related taxes:
Change in foreign currency translation adjustments	(3,459)	416	(4,615)	(1,410)
Change in unrealized gains or losses in respect of the Company's share in derivatives instruments of unconsolidated investment that qualifies as a cash flow hedge	1,543	(1,234)	5,445	2,521
Change in unrealized gains or losses in respect of a cross currency swap derivative instrument that qualifies as a cash flow hedge	(2,095)	198	(4,000)	(2,600)
Change in unrealized gains or losses on marketable securities available-for-sale (net of related tax)	142	9	41	(11)
Other changes in comprehensive income	15	17	30	33
Total other comprehensive income (loss), net of related taxes:	(3,854)	(594)	(3,099)	(1,467)
Comprehensive income	11,091	14,601	34,639	31,557
Comprehensive income attributable to noncontrolling interest	(2,842)	(2,301)	(6,906)	(4,298)
Comprehensive income attributable to the Company's stockholders	$ 8,249	$ 12,300	$ 27,733	$ 27,259
Earnings per share attributable to the Company's stockholders:
Basic: (in dollars per share)	$ 0.20	$ 0.23	$ 0.53	$ 0.51
Diluted: (in dollars per share)	$ 0.20	$ 0.23	$ 0.53	$ 0.50
Weighted average number of shares used in computation of earnings per share attributable to the Company's stockholders:
Basic (in shares)	56,114	55,992	56,089	55,990
Diluted (in shares)	56,498	56,316	56,431	56,502
Electricity [Member]
Revenues:
Revenue	$ 151,195	$ 133,864	$ 313,720	$ 278,852
Cost of revenues:
Cost of revenues	95,517	83,736	190,038	163,587
Product [Member]
Revenues:
Revenue	10,392	7,410	25,020	16,053
Cost of revenues:
Cost of revenues	10,367	5,924	23,980	13,998
Energy Storage and Management Services [Member]
Revenues:
Revenue	7,491	5,627	14,048	18,348
Cost of revenues:
Cost of revenues	$ 5,593	$ 5,266	$ 11,264	$ 10,046