Revenue from Contracts with Customers - Disaggregation of Revenue by Geographical Location (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Disaggregation of Revenue [Line Items]
Net sales	$ 207,085	$ 205,274	$ 553,772	$ 644,110
North America
Disaggregation of Revenue [Line Items]
Net sales	133,758	139,731	359,163	428,889
Europe
Disaggregation of Revenue [Line Items]
Net sales	58,760	53,796	159,576	174,286
Asia
Disaggregation of Revenue [Line Items]
Net sales	14,567	11,747	35,033	40,935
Operating Segments | Performance Materials
Disaggregation of Revenue [Line Items]
Net sales	67,817	60,000	191,510	189,682
Operating Segments | Performance Materials | North America
Disaggregation of Revenue [Line Items]
Net sales	45,759	42,693	131,866	136,892
Operating Segments | Performance Materials | Europe
Disaggregation of Revenue [Line Items]
Net sales	18,776	15,203	52,552	47,589
Operating Segments | Performance Materials | Asia
Disaggregation of Revenue [Line Items]
Net sales	3,282	2,104	7,092	5,201
Operating Segments | Technical Nonwovens
Disaggregation of Revenue [Line Items]
Net sales	58,509	63,912	167,919	198,596
Operating Segments | Technical Nonwovens | North America
Disaggregation of Revenue [Line Items]
Net sales	34,727	42,128	101,694	121,984
Operating Segments | Technical Nonwovens | Europe
Disaggregation of Revenue [Line Items]
Net sales	17,318	16,544	49,674	53,384
Operating Segments | Technical Nonwovens | Asia
Disaggregation of Revenue [Line Items]
Net sales	6,464	5,240	16,551	23,228
Operating Segments | Thermal Acoustical Solutions
Disaggregation of Revenue [Line Items]
Net sales	85,523	87,926	206,732	275,511
Operating Segments | Thermal Acoustical Solutions | North America
Disaggregation of Revenue [Line Items]
Net sales	57,841	61,315	137,517	189,152
Operating Segments | Thermal Acoustical Solutions | Europe
Disaggregation of Revenue [Line Items]
Net sales	22,861	22,208	57,825	73,853
Operating Segments | Thermal Acoustical Solutions | Asia
Disaggregation of Revenue [Line Items]
Net sales	4,821	4,403	11,390	12,506
Eliminations and Other
Disaggregation of Revenue [Line Items]
Net sales	(4,764)	(6,564)	(12,389)	(19,679)
Eliminations and Other | North America
Disaggregation of Revenue [Line Items]
Net sales	(4,569)	(6,405)	(11,914)	(19,139)
Eliminations and Other | Europe
Disaggregation of Revenue [Line Items]
Net sales	(195)	(159)	(475)	(540)
Eliminations and Other | Asia
Disaggregation of Revenue [Line Items]
Net sales	$ 0	$ 0	$ 0	$ 0