Acquisition (Details) - USD ($) $ in Thousands		3 Months Ended	12 Months Ended
	Feb. 01, 2017	Dec. 31, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Business Acquisition [Line Items]
Cash and Equivalents	$ 21,600
Current Assets, Receivables	118,500
Inventory	214,900
Property, Plant, and Equipment	438,000
Goodwill, Gross	194,800	$ 2,554,062	$ 2,554,062		$ 2,331,781
Indefinite-Lived Intangible Assets	124,300
Current Liabilities	(87,400)
Deferred Tax Liabilities	(105,400)
Noncurrent Liabilities, Other	(12,600)
Assets Acquired and Liabilities Assumed, Net	906,700
Acquisition, Cash Consideration Paid	862,100	362,000	250,000
Acquisition, Cash Consideration Paid Canadian Dollars	1,125,000
Contingent Consideration, Liability		30,600	30,600
Contingent Consideration, Account Payable		7,400	7,400
Stock Issued	$ 6,600
Revenues			14,251,299	$ 10,535,700	$ 13,237,920
Acquisition and Integration Costs		$ 27,900	27,900
Business Combination Acquiree [Member]
Business Acquisition [Line Items]
Net Income (Loss) Attributable to Parent			71,800
Revenues			$ 1,125,300