Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning and end of period	$ 5,148,893	$ 4,320,796
Before reclassifications to income	9,018	(18,973)
Reclassifications to income	4,551	11,998
Other comprehensive income (loss)	13,569	(6,975)	$ 73,622
Balance at end of year	5,549,653	5,148,893	4,320,796
Total
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning and end of period	(534,686)	(527,711)	(601,333)
Other comprehensive income (loss)	13,569	(6,975)
Balance at end of year	(521,117)	(534,686)	(527,711)
Foreign Currency Translation Gains (Losses)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning and end of period	(418,230)	(311,895)
Before reclassifications to income	36,598	(106,335)
Reclassifications to income	0	0
Other comprehensive income (loss)	36,598	(106,335)
Balance at end of year	(381,632)	(418,230)	(311,895)
Retirement and Postretirement Benefit Plan Adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning and end of period	(116,456)	(215,816)
Before reclassifications to income	(27,580)	87,362
Reclassifications to income	4,551	11,998
Other comprehensive income (loss)	(23,029)	99,360
Balance at end of year	(139,485)	(116,456)	$ (215,816)
Reclassification before tax	5,600	15,300
Reclassification tax	$ 1,100	$ 3,300