Assets Held for Sale (Details) - USD ($) $ in Thousands		3 Months Ended
	Apr. 01, 2019	Dec. 31, 2018	Mar. 31, 2019	Jan. 01, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from Divestiture of Businesses	$ 265,500	$ 265,500
Receivables Held-for-sale, Amount		35,498	$ 47,613
Disposal Group, Including Discontinued Operation, Other Assets, Current		3,797	1,976
Disposal Group, Including Discontinued Operation, Inventory		13,774	14,149
Disposal Group, Including Discontinued Operation, Prepaid and Other Assets		1,759	1,474
Disposal Group, Including Discontinued Operation, Prepaid and Other Assets, Current		1,197	939
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Current		31,148	30,846
Disposal Group, Including Discontinued Operation, Goodwill		13,500	13,500
Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent		3,225	3,333
Assets held for sale		103,898	122,966	$ 113,457
Disposal Group, Including Discontinued Operation, Accounts Payable		38,065	41,546
Disposal Group, Including Discontinued Operation, Accounts Payable and Accrued Liabilities		6,826	0
Disposal Group, Including Discontinued Operation, Accrued Liabilities, Current		1,000	573
Disposal Group, Including Discontinued Operation, Pension Plan Benefit Obligation		15,894	15,993
Disposal Group, Including Discontinued Operation, Postretirement Plan Benefit Obligation		9,281	8,696
Disposal Group, Including Discontinued Operation, Other Liabilities		129	138
Liabilities held for sale		71,195	75,830	$ 80,756
Minimum [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from Divestiture of Businesses	220,000
Maximum [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from Divestiture of Businesses	$ 225,000
Discontinued Operations, Held-for-sale [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets held for sale		0	9,136
Held-for-sale, Current operating lease liabilities [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Liabilities held for sale		0	1,617
Held-for-sale, Long-term operating lease liabilities [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Liabilities held for sale		$ 0	$ 7,267