Business Segments - Reconciliation of Segment Operating Earnings to Operating Income (Details) - USD ($) $ in Thousands	3 Months Ended				9 Months Ended
	Sep. 30, 2025	Jun. 30, 2025	Sep. 30, 2024	Mar. 31, 2023	Sep. 30, 2025	Sep. 30, 2024
Segment Reporting [Abstract]
Segment operating earnings	$ 120,961		$ 117,421		$ 341,432	$ 365,927
Restructuring and related charges, net	(7,745)		(2,610)		(31,128)	(4,787)
Impairment charges	0	$ (88,800)	0	$ (93,000)	(88,840)	0
Non-operating and administrative expenses	(49,560)		(47,778)		(151,137)	(149,538)
Depreciation of corporate assets and amortization	(17,015)		(15,315)		(48,572)	(45,909)
Operating income	46,641		51,718		21,755	165,693
Other (expense) income, net	(270)		783		(1,632)	2,285
Interest expense, net	(10,941)		(10,347)		(33,265)	(31,925)
Income (loss) before taxes and equity in net income of associated companies	$ 35,430		$ 42,154		$ (13,142)	$ 136,053