Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Deferred Tax Assets:
Accrued compensation, postretirement and other employee benefits	$ 45,145	$ 46,068
Accrued expenses	17,218	20,154
Net operating loss and other carryforwards	311,043	326,437
Inventories	31,583	28,729
Allowance for credit losses	8,428	7,679
Accrued insurance	2,340	4,574
Long-term liabilities, warranty and environmental costs	6,818	1,864
Lease obligations	51,837	55,634
Capitalized research and development	68,240	54,397
Total gross deferred tax assets	542,652	545,536
Valuation allowance	(198,082)	(209,931)
Total deferred tax assets, net of valuation allowances	344,570	335,605
Deferred Tax Liabilities:
Intangible assets	(440,946)	(405,504)
Property, plant and equipment	(69,920)	(78,668)
Lease right-of-use assets	(48,088)	(52,769)
Other liabilities	(21,250)	(34,642)
Total deferred tax liabilities	(580,204)	(571,583)
Net deferred tax liability	(235,634)	(235,978)
Classified as follows in the Consolidated Balance Sheets:
Other assets and deferred charges	116,372	110,405
Deferred income taxes	$ (352,006)	$ (346,383)