Discontinued Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Mar. 15, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Consideration				$ 55,070
Disposal Group, Including Discontinued Operation, Contingent Consideration				$ 1,500
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax	$ 2,003
Gain (loss) on sale of discontinued operations, net of income taxes	1,306	$ 0	$ 0
Total Plastics Inc [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Valuation Allowances and Reserves, Additions for Adjustments	$ 4,207