Stockholders' Equity (Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	$ 1,386,886	$ 1,355,036	$ 1,381,008
Net foreign currency translation adjustment	34,124	(10,807)	8,532
Actuarial gain (loss) on pension plans	326	(233)	(964)
Net current-period other comprehensive loss	34,450	(11,040)
Ending Balance	1,360,833	1,386,886	1,355,036
Accumulated Other Comprehensive (Loss) Income
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	3,232	14,272	6,704
Ending Balance	37,682	3,232	14,272
Foreign currency items
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(24,155)	(14,789)
Net foreign currency translation adjustment	30,598	(9,366)
Actuarial gain (loss) on pension plans	0	0
Net current-period other comprehensive loss	30,598	(9,366)
Ending Balance	6,443	(24,155)	(14,789)
Pension items
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	27,387	29,061
Net foreign currency translation adjustment	3,526	(1,441)
Actuarial gain (loss) on pension plans	326	(233)
Net current-period other comprehensive loss	3,852	(1,674)
Ending Balance	$ 31,239	$ 27,387	$ 29,061