Condensed Consolidated Statements of Cash Flow - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Cash flows from operating activities:
Net income	$ 64,315	$ 57,972
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	126,152	107,417
Accretion of asset retirement obligation	3,895	3,083
Stock-based compensation	9,845	7,301
Income attributable to sale of tax benefits, net of interest expense	(16,519)	(16,432)
Equity in earnings of investees	(2,061)	(2,267)
Mark-to-market of derivative instruments	1,279	591
Disposal of property, plant and equipment	38	23
Write-off of unsuccessful exploration activities	1,379	0
Write-off of long-lived assets	957	0
Loss (gain) on severance pay fund asset	(43)	296
Loss on foreign currency exchange rates	963	0
Deferred income tax provision	(18,266)	(13,933)
Liability for unrecognized tax benefits	(1,153)	125
Changes in operating assets and liabilities, net of businesses acquired:
Receivables	53,147	(29,603)
Costs and estimated earnings in excess of billings on uncompleted contracts	(11,352)	(5,381)
Long-term costs and estimated earnings in excess of billings on uncompleted contracts	(5,370)	0
Inventories	390	(15,068)
Prepaid expenses and other	(14,004)	(4,271)
Change in operating lease right of use asset	1,912	1,440
Deposits and other	287	(5,156)
Accounts payable and accrued expenses	(42,765)	25,020
Billings in excess of costs and estimated earnings on uncompleted contracts	(2,392)	9,866
Liabilities for severance pay	(1,835)	(750)
Change in operating lease liabilities	(2,677)	(922)
Other long-term liabilities	(218)	11,154
Net cash provided by operating activities	145,904	130,505
Cash flows from investing activities:
Capital expenditures	(250,225)	(266,713)
Investment in unconsolidated companies	(1,225)	(8,101)
Cash paid for business acquisition, net of cash acquired	(274,632)	0
Decrease (increase) in severance pay fund asset, net of payments made to retired employees	1,120	(128)
Net cash used in investing activities	(524,962)	(274,942)
Cash flows from financing activities:
Proceeds from long-term loans, net of transaction costs	392,791	99,850
Proceeds from exercise of options by employees	149	27
Proceeds from revolving credit lines with banks	40,000	0
Repayment of revolving credit lines with banks	(60,000)	0
Cash received from noncontrolling interest	12,251	7,341
Repayments of long-term debt	(108,644)	(115,182)
Proceeds from issuance of common stock, net of related costs	0	341,663
Cash paid to noncontrolling interest	(4,007)	(3,584)
Payments under finance lease obligations	(687)	(955)
Deferred debt issuance costs	(2,073)	(2,112)
Cash dividends paid	(14,587)	(13,961)
Net cash provided by financing activities	255,193	313,087
Effect of exchange rate changes	(163)	56
Net change in cash and cash equivalents and restricted cash and cash equivalents	(124,028)	168,706
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	163,742	395,382
Supplemental non-cash investing and financing activities:
Change in accounts payable related to purchases of property, plant and equipment	(22,265)	(15,253)
Right of use assets obtained in exchange for new lease liabilities	$ 3,548	$ 3,196