Discontinued Operations (Summary of Major Classes of Assets and Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Accounts receivable, net	$ 67,285	$ 55,578
Inventories	95,403	88,909
Property, Plant and equipment, net	49,475	53,159
Accounts payable	39,584	27,748
Accrued liabilities	12,244	12,570
Discontinued Operations Held-for-sale [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Accounts receivable, net	13,781	11,950
Inventories	10,747	9,713
Property, Plant and equipment, net	34,365	38,147
Assets held for sale	58,893	59,810
Accounts payable	5,245	4,788
Accrued liabilities	1,008	828
Liabilities held for sale	$ 6,253	$ 5,616