Condensed Consolidated Statements of Cash Flow - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Cash flows from operating activities:
Net income	$ 88,616	$ 94,304
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	192,813	164,905
Accretion of asset retirement obligation	5,839	4,644
Stock-based compensation	14,887	11,235
Income attributable to sale of tax benefits, net of interest expense	(24,365)	(23,896)
Equity in earnings of investees	(437)	(1,862)
Mark-to-market of derivative instruments	870	284
Disposal of property, plant and equipment	63	35
Write-off of unsuccessful exploration activities	1,456	2,318
Write-off of long-lived assets	1,280	0
Loss (gain) on severance pay fund asset	(43)	525
Loss (gain) on foreign currency exchange rates	(218)	0
Deferred income tax provision	(30,601)	(26,426)
Liability for unrecognized tax benefits	(813)	79
Changes in operating assets and liabilities, net of businesses acquired:
Receivables	42,527	(48,805)
Costs and estimated earnings in excess of billings on uncompleted contracts	(12,978)	(9,361)
Long-term costs and estimated earnings in excess of billings on uncompleted contracts	(12,252)	0
Inventories	(2,371)	(22,012)
Prepaid expenses and other	(10,713)	(11,702)
Change in operating lease right of use asset	2,950	2,874
Deposits and other	(3,518)	(8,028)
Accounts payable and accrued expenses	7,022	32,774
Billings in excess of costs and estimated earnings on uncompleted contracts	(8,664)	1,834
Liabilities for severance pay	(1,610)	(1,742)
Change in operating lease liabilities	(5,730)	(2,497)
Other long-term liabilities	8,290	10,776
Net cash provided by operating activities	252,300	170,256
Cash flows from investing activities:
Capital expenditures	(359,941)	(448,791)
Investment in unconsolidated companies	(1,815)	(9,600)
Buyout of Class B membership in Opal Geo	(9,800)	0
Cash paid for business acquisition, net of cash acquired	(274,632)	0
Decrease (increase) in severance pay fund asset, net of payments to retired employees	1,073	225
Net cash used in investing activities	(645,115)	(458,166)
Cash flows from financing activities:
Proceeds from long-term loans, net of transaction costs	442,639	99,850
Proceeds from exercise of options by employees	150	27
Proceeds from issuance of convertible notes, net of transaction costs	44,203	0
Proceeds from revolving credit lines with banks	134,500	35,000
Repayment of revolving credit lines with banks	(154,500)	0
Cash received from noncontrolling interest	12,251	7,341
Repayments of long-term debt	(164,616)	(175,860)
Proceeds from issuance of common stock, net of related costs	0	341,671
Cash paid to noncontrolling interest	(6,075)	(34,523)
Payments under finance lease obligations	(1,023)	(1,590)
Deferred debt issuance costs	(3,652)	(3,159)
Cash dividends paid	(21,847)	(21,189)
Net cash provided by financing activities	282,030	247,568
Effect of exchange rate changes	(210)	(67)
Net change in cash and cash equivalents and restricted cash and cash equivalents	(110,995)	(40,409)
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period	287,770	226,676
Cash and cash equivalents and restricted cash and cash equivalents at end of period	176,775	186,267
Supplemental non-cash investing and financing activities:
Change in accounts payable related to purchases of property, plant and equipment	(36,245)	27,581
Right of use assets obtained in exchange for new lease liabilities	$ 9,045	$ 5,319