Accumulated Other Comprehensive Loss - Amounts Included in Accumulated Other Comprehensive Loss, Net of Tax (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			$ 1,989,581
Other comprehensive income before reclassifications			116,298
Amounts reclassified from accumulated other comprehensive loss			1,680
Other comprehensive income (loss)	$ 68,007	$ (25,540)	117,978	$ (46,169)
Ending balance	2,222,218	1,933,690	2,222,218	1,933,690
Accumulated other comprehensive loss
Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(303,386)	(271,990)	(353,357)	(251,361)
Ending balance	(235,379)	$ (297,530)	(235,379)	$ (297,530)
Unrecognized Net Defined Benefit Plan Costs
Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			(129,988)
Other comprehensive income before reclassifications			0
Amounts reclassified from accumulated other comprehensive loss			2,825
Other comprehensive income (loss)			2,825
Ending balance	(127,163)		(127,163)
Change in Fair Value of Derivatives
Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			(5,039)
Other comprehensive income before reclassifications			(871)
Amounts reclassified from accumulated other comprehensive loss			(1,145)
Other comprehensive income (loss)			(2,016)
Ending balance	(7,055)		(7,055)
Foreign Currency Translation
Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			(218,330)
Other comprehensive income before reclassifications			117,169
Amounts reclassified from accumulated other comprehensive loss			0
Other comprehensive income (loss)			117,169
Ending balance	$ (101,161)		$ (101,161)