Subsequent Events Subsequent Event details (Details) - Engineered Films [Member] - Subsequent Event [Member] $ in Thousands	1 Months Ended
	Aug. 22, 2017 USD ($)
Subsequent Event [Line Items]
Subsequent Event, Date	Aug. 22, 2017
Business Acquisition, Name of Acquired Entity	Colorado Lining International, Inc.
Business Combination, Consideration Transferred, Liabilities Incurred	$ 14,000
Maximum [Member]
Subsequent Event [Line Items]
Acquisition-related contingent consideration maximum	$ 2,000
Contingent Consideration Term in Years	3 years