Acquisitions (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Business Acquisition [Line Items]
Payments to Acquire Businesses, Gross	$ 662,700		$ 662,665	$ 0
Assets Acquired - Cash and Equivalents	38,900		38,900
Assets Acquired - Current Assets	58,600		58,600
Assets Acquired - Inventories	81,000		81,000
Assets Acquired - Property, Plant, and Equipment	168,200		168,200
Assets Acquired - Goodwill	279,200		279,200
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	214,600		214,600
Assets Acquired - Intangible Assets and Other Noncurrent Assets	231,500		231,500
Liabilities Assumed - Accounts Payable and Accrued Liabilities	(47,000)		(47,000)
Liabilities Assumed - Deferred Income Tax Liabilities	(84,500)		(84,500)
Liabilities Assumed - Other Long-term Liabilities	(24,300)		(24,300)
Assets Acquired and Liabilities Assumed, Net	701,600		$ 701,600
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			12 years
Income (Loss) from Subsidiaries, before Tax	6,600
Revenues	88,100		$ 253,500	5,000
Acquisition Costs, Cumulative	20,100		20,100
Business Acquisition, Pro Forma Revenue	571,685		1,608,648	1,679,554
Business Acquisition, Pro Forma Income (Loss) from Continuing Operations, Net of Tax	39,496		(127,972)	110,424
Goodwill, Impairment Loss	$ 0	$ 0	$ 152,712	$ 0