Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred Tax Assets, Gross [Abstract]
Accrued compensation, principally postretirement and other employee benefits	$ 62,547	$ 72,795
Accrued expenses, principally for state income taxes, interest and warranty	29,736	30,159
Net operating loss and other carryforwards	269,599	290,629
Inventories, principally due to reserves for financial reporting purposes and capitalization for tax purposes	17,671	19,228
Accounts receivable, principally due to allowance for doubtful accounts	3,409	3,379
Accrued insurance	2,001	1,897
Long-term liabilities, principally warranty, environmental and exit costs	3,305	4,183
Total gross deferred tax assets	388,268	422,270
Valuation allowance	(244,153)	(264,398)
Total deferred tax assets	144,115	157,872
Deferred Tax Liabilities, Gross [Abstract]
Intangible assets, principally due to different tax and financial reporting bases and amortization lives	(364,843)	(394,851)
Plant and equipment, principally due to differences in depreciation	(56,401)	(49,380)
Deferred Tax Liabilities, Other	18,434	23,533
Total gross deferred tax liabilities	(439,678)	(467,764)
Deferred Tax Assets, Net, Classification [Abstract]
Non-current deferred tax asset	26,473	29,433
Non-current deferred tax liability	(322,036)	(339,325)
Deferred Tax Liabilities, Net	$ (295,563)	$ (309,892)