Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred Tax Assets:
Accrued compensation, principally postretirement and other employee benefits	$ 61,388	$ 60,797
Accrued expenses, principally for state income taxes, interest and warranty	30,143	32,418
Net operating loss and other carryforwards	334,483	319,291
Inventories, principally due to reserves for financial reporting purposes and capitalization for tax purposes	28,698	23,723
Accounts receivable, principally due to allowance for doubtful accounts	9,988	7,118
Accrued insurance	4,708	4,165
Long-term liabilities, principally warranty, environmental and exit costs	3,043	2,273
Lease obligations	41,653	40,984
Total gross deferred tax assets	514,104	490,769
Valuation allowance	(306,066)	(287,679)
Total deferred tax assets, net of valuation allowances	208,038	203,090
Deferred Tax Liabilities:
Intangible assets, principally due to different tax and financial reporting bases and amortization lives	(392,208)	(387,897)
Property, plant and equipment, principally due to differences in depreciation	(77,918)	(62,667)
Lease right-of-use assets	(40,181)	(38,742)
Other liabilities	(28,786)	9,992
Total gross deferred tax liabilities	(539,093)	(479,314)
Net deferred tax liability	(331,055)	(276,224)
Classified as follows in the Consolidated Balance Sheets:
Other assets and deferred charges	33,062	22,199
Deferred income taxes	$ (364,117)	$ (298,423)