Restructuring Expense - Restructuring Expense by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Restructuring Cost and Reserve [Line Items]
Restructuring	$ 206	$ 874	$ 1,030	$ 4,038
Operating Segments | Clothing
Restructuring Cost and Reserve [Line Items]
Restructuring	141	162	327	2,638
Operating Segments | Roll Covers
Restructuring Cost and Reserve [Line Items]
Restructuring	52	681	690	1,308
Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring	$ 13	$ 31	$ 13	$ 92