CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
OPERATING ACTIVITIES
Net income	$ (56,959)	$ 88,055	$ 111,610
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	82,712	82,452	70,374
Amortization	5,202	6,842	6,359
Change in deferred taxes and other liabilities	(43,315)	(15,331)	(2,046)
Impairment of property, plant, equipment, and inventory	(390)	2,038	1,773
Non-cash interest expense	1,029	1,025	1,404
Contract loss provision	139,665	0	0
Share-based compensation	10,060	4,715	6,936
Provision/(recovery) for credit losses from uncollected receivables and contract assets	(139)	310	640
Foreign currency remeasurement (gain)/loss on intercompany loans	8,883	81	(2,831)
Fair value adjustment on foreign currency options	0	0	(139)
Gain on sale of assets	(1,566)	(513)	0
Changes in operating assets and liabilities that provided/(used) cash, net of impact of business acquisition:
Accounts receivable	(724)	31,764	(11,038)
Contract assets	(23,189)	12,289	(32,156)
Inventories	17,627	14,627	15,093
Prepaid expenses and other current assets	1,865	4,002	1,530
Income taxes prepaid and receivable	(25,060)	(8,574)	(2,897)
Accounts payable	9,172	(3,084)	(5,672)
Accrued liabilities	7,975	(1,275)	(10,441)
Income taxes payable	14,507	6,918	(1,988)
Noncurrent receivables	0	(780)	3,723
Other noncurrent liabilities	(2,550)	(7,702)	(9,783)
Other, net	7,669	582	7,605
Net cash provided by operating activities	152,474	218,441	148,056
INVESTING ACTIVITIES
Purchase of business, net of cash acquired	0	0	(133,470)
Purchases of property, plant and equipment	(69,830)	(80,249)	(83,560)
Purchased software	(1,675)	(958)	(869)
Proceeds received from sale of assets	3,243	1,027	0
Net cash used in investing activities	(68,262)	(80,180)	(217,899)
FINANCING ACTIVITIES
Proceeds from borrowings	272,003	145,595	78,040
Principal payments on debt	(147,044)	(279,838)	(92,274)
Debt acquisition costs	0	0	(4,108)
Purchase of Treasury shares	(186,012)	(14,175)	0
Taxes paid in lieu of share issuance	(2,521)	(2,931)	(3,136)
Dividends paid	(32,477)	(32,483)	(31,163)
Net cash used in financing activities	(96,051)	(183,832)	(52,641)
Effect of exchange rate changes on cash and cash equivalents	8,906	(12,566)	4,128
(Decrease) in cash and cash equivalents	(2,933)	(58,137)	(118,356)
Cash and cash equivalents at beginning of period	115,283	173,420	291,776
Cash and cash equivalents at end of period	$ 112,350	$ 115,283	$ 173,420