v3.26.1
Condensed Consolidated Statements of Cash Flow - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Cash flows from operating activities:    
Net income $ 70,627 $ 69,233
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation and amortization 155,945 139,808
Accretion of asset retirement obligation 4,469 4,201
Stock-based compensation 10,968 9,533
Income attributable to sale of tax benefits, net of interest expense (19,914) (13,431)
Equity in losses (earnings) of investees 299 (406)
Mark-to-market of derivative instruments (791) (2,404)
Disposal of property, plant and equipment 53 (332)
Write-off of unsuccessful exploration and storage activities 8,693 767
Write-off of long-lived assets 8,428 0
Gain on severance pay fund asset (175) (49)
Changes in fair value of equity investments without a readily determinable fair value (4,332) 0
Bargain purchase gain (9,616) 0
Induced conversion expense 34,413 0
Loss (gain) on foreign currency exchange rates 218 (8,329)
Deferred income tax provision (30,703) (15,038)
Liability for unrecognized tax benefits (4,305) 1,311
Gain from sale of a power plant (24,756) 0
Changes in operating assets and liabilities, net of businesses acquired:    
Receivables (12,341) 15,865
Costs and estimated earnings in excess of billings on uncompleted contracts (17,737) 16,794
Long-term costs and estimated earnings in excess of billings on uncompleted contracts (5,325) (29,396)
Inventories (619) (6,815)
Prepaid expenses and other 337 531
Change in operating lease right of use asset 2,920 2,404
Deposits and other (9,453) 6,456
Accounts payable and accrued expenses (21,375) (18,161)
Billings in excess of costs and estimated earnings on uncompleted contracts (1,445) 12,591
Liabilities for severance pay 1,168 1,496
Change in operating lease liabilities (3,990) (1,926)
Other long-term liabilities (2,469) 204
Net cash provided by operating activities 129,192 184,907
Cash flows from investing activities:    
Capital expenditures (251,804) (327,426)
Cash received from sale of a power plant 93,136 0
Investment in unconsolidated companies (25,567) (16,297)
Cash paid for business acquisition, net of cash acquired (78,282) (88,650)
Decrease (increase) in severance pay fund asset, net of payments to retired employees (117) (53)
Net cash used in investing activities (262,634) (432,426)
Cash flows from financing activities:    
Proceeds from long-term loans, net of transaction costs 84,180 299,339
Proceeds from issuance of convertible notes, net of transaction costs 976,100 0
Purchase of treasury stock (24,395) 0
Proceeds related to tax monetization transactions 50,799 5,190
Prepayments of convertible notes (310,862) 0
Proceeds from revolving credit lines with banks 414,000 682,000
Repayment of revolving credit lines with banks (494,000) (585,500)
Cash received from noncontrolling interest 5,473 10,276
Repayments of long-term debt (158,086) (136,790)
Cash paid to noncontrolling interest (2,589) (3,301)
Payments under finance lease obligations (1,078) (765)
Debt issuance costs (13,264) (8,964)
Cash dividends paid (14,716) (14,555)
Net cash provided by financing activities 511,562 246,930
Effect of exchange rate changes (840) 881
Net change in cash and cash equivalents and restricted cash and cash equivalents 377,280 292
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period 280,866 205,772
Cash and cash equivalents and restricted cash and cash equivalents at end of period 658,146 206,064
Supplemental non-cash investing and financing activities:    
Change in accounts payable related to purchases of property, plant and equipment (21,114) (1,190)
Right of use assets obtained in exchange for new lease liabilities $ 5,619 $ 5,241