Restructuring - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	9 Months Ended
	Sep. 30, 2019	Dec. 31, 2019	Sep. 30, 2019	Dec. 31, 2017	Apr. 30, 2017
Restructuring Cost and Reserve [Line Items]
Cash paid	$ 100		$ 700
Technical Nonwovens
Restructuring Cost and Reserve [Line Items]
Estimated pre-tax restructuring expense	3,700		3,700
Restructuring, expected costs resulting in future cash expenditures					$ 3,300
Cash paid			661	$ 4,200
Technical Nonwovens | Selling, Product Development and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Pre-tax restructuring expenses, excluding depreciation	$ 100		$ 600
Forecast | Technical Nonwovens
Restructuring Cost and Reserve [Line Items]
Pre-tax restructuring expenses, excluding depreciation		$ 200