Accumulated Other Comprehensive Loss - Changes in Accumulated Other Comprehensive (Loss) by Component (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
AOCI Attributable to Parent [Roll Forward]
Beginning balance	$ 4,351,851	$ 4,416,985
Other comprehensive income (loss) before reclassifications	49,329	(79,920)
Amounts reclassified from accumulated other comprehensive loss	3,684	2,888
Other comprehensive income (loss), net of income taxes	53,013	(77,032)
Ending balance	4,464,563	4,417,176
Pension and Other Post-Retirement Benefits
AOCI Attributable to Parent [Roll Forward]
Beginning balance	(581,000)	(517,941)
Other comprehensive income (loss) before reclassifications	0	0
Amounts reclassified from accumulated other comprehensive loss	3,684	2,888
Other comprehensive income (loss), net of income taxes	3,684	2,888
Ending balance	(577,316)	(515,053)
Foreign Currency Translation
AOCI Attributable to Parent [Roll Forward]
Beginning balance	(680,743)	(458,931)
Other comprehensive income (loss) before reclassifications	49,329	(79,920)
Amounts reclassified from accumulated other comprehensive loss	0	0
Other comprehensive income (loss), net of income taxes	49,329	(79,920)
Ending balance	(631,414)	(538,851)
Total
AOCI Attributable to Parent [Roll Forward]
Beginning balance	(1,261,743)	(976,872)
Ending balance	$ (1,208,730)	$ (1,053,904)