Condensed Consolidated Statements of Cash Flow (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash flows from operating activities:
Net income	$ 94,304	$ 57,564
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	164,905	147,458
Accretion of asset retirement obligation	4,644	3,920
Stock-based compensation	11,235	8,629
Income attributable to sale of tax benefits, net of interest expense	(23,896)	(16,679)
Equity in losses (earnings) of investees	(1,862)	1,574
Mark-to-market of derivative instruments	284	2,677
Disposal of property, plant and equipment	35	(84)
Write-off of Energy Storage project assets and unsuccessful exploration activities	2,318	2,781
Loss on severance pay fund asset	525	951
Loss from prepayment of a long-term loan	0	1,102
Deferred income tax provision	(26,426)	2,269
Liability for unrecognized tax benefits	79	842
Other	0	575
Changes in operating assets and liabilities, net of businesses acquired:
Receivables	(48,805)	3,617
Costs and estimated earnings in excess of billings on uncompleted contracts	(9,361)	(7,662)
Inventories	(22,012)	(1,360)
Prepaid expenses and other	(11,702)	(2,399)
Change in operating lease right of use asset	2,874	2,119
Deposits and other	(8,028)	1,362
Accounts payable and accrued expenses	32,774	(1,089)
Billings in excess of costs and estimated earnings on uncompleted contracts	1,834	4,786
Liabilities for severance pay	(1,742)	(2,093)
Change in operating lease liabilities	(2,497)	(2,072)
Other long-term liabilities	10,776	(2,541)
Net cash provided by operating activities	170,256	206,247
Cash flows from investing activities:
Purchase of marketable securities	0	(19,192)
Maturities of marketable securities	0	32,645
Sale of marketable securities	0	29,355
Capital expenditures	(448,791)	(408,378)
Investment in unconsolidated companies	(9,600)	(4,509)
Decrease (increase) in severance pay fund asset, net of payments made to retired employees	225	502
Net cash used in investing activities	(458,166)	(369,577)
Cash flows from financing activities:
Proceeds from long-term loans, net of transaction costs	99,850	75,000
Proceeds from exercise of options by employees	27	42
Proceeds from issuance of convertible notes, net of transaction costs	0	419,698
Purchase of capped call instruments	0	(24,538)
Purchase of treasury stock	0	(17,964)
Prepayments of a long-term loan	0	(219,126)
Proceeds from revolving credit lines with banks	35,000	0
Cash received from noncontrolling interest	7,341	5,443
Repayments of long-term debt	(175,860)	(135,656)
Proceeds from issuance of common stock, net of related costs	341,671	0
Cash paid to noncontrolling interest	(34,523)	(5,942)
Payments under finance lease obligations	(1,590)	(2,347)
Deferred debt issuance costs	(3,159)	(833)
Cash dividends paid	(21,189)	(20,177)
Net cash provided by financing activities	247,568	73,600
Effect of exchange rate changes	(67)	(679)
Net change in cash and cash equivalents and restricted cash and cash equivalents	(40,409)	(90,409)
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period	226,676	343,444
Cash and cash equivalents and restricted cash and cash equivalents at end of period	186,267	253,035
Supplemental non-cash investing and financing activities:
Change in accounts payable related to purchases of property, plant and equipment	27,581	13,972
Right of use assets obtained in exchange for new lease liabilities	$ 5,319	$ 5,249