REVENUE FROM CONTRACTS WITH CUSTOMERS - Disaggregation of Revenue by Geographical Location (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Disaggregation of Revenue [Line Items]
Net sales	$ 227,099	$ 200,527
North America
Disaggregation of Revenue [Line Items]
Net sales	150,687	133,072
Europe
Disaggregation of Revenue [Line Items]
Net sales	59,661	57,573
Asia
Disaggregation of Revenue [Line Items]
Net sales	16,751	9,882
Operating Segments | Performance Materials
Disaggregation of Revenue [Line Items]
Net sales	79,333	65,220
Operating Segments | Performance Materials | North America
Disaggregation of Revenue [Line Items]
Net sales	58,874	45,917
Operating Segments | Performance Materials | Europe
Disaggregation of Revenue [Line Items]
Net sales	16,924	17,275
Operating Segments | Performance Materials | Asia
Disaggregation of Revenue [Line Items]
Net sales	3,535	2,028
Operating Segments | Technical Nonwovens
Disaggregation of Revenue [Line Items]
Net sales	61,675	57,403
Operating Segments | Technical Nonwovens | North America
Disaggregation of Revenue [Line Items]
Net sales	35,838	35,731
Operating Segments | Technical Nonwovens | Europe
Disaggregation of Revenue [Line Items]
Net sales	16,899	16,938
Operating Segments | Technical Nonwovens | Asia
Disaggregation of Revenue [Line Items]
Net sales	8,938	4,734
Operating Segments | Thermal Acoustical Solutions
Disaggregation of Revenue [Line Items]
Net sales	91,044	83,761
Operating Segments | Thermal Acoustical Solutions | North America
Disaggregation of Revenue [Line Items]
Net sales	60,653	57,101
Operating Segments | Thermal Acoustical Solutions | Europe
Disaggregation of Revenue [Line Items]
Net sales	26,113	23,540
Operating Segments | Thermal Acoustical Solutions | Asia
Disaggregation of Revenue [Line Items]
Net sales	4,278	3,120
Eliminations and Other
Disaggregation of Revenue [Line Items]
Net sales	(4,953)	(5,857)
Eliminations and Other | North America
Disaggregation of Revenue [Line Items]
Net sales	(4,678)	(5,677)
Eliminations and Other | Europe
Disaggregation of Revenue [Line Items]
Net sales	(275)	(180)
Eliminations and Other | Asia
Disaggregation of Revenue [Line Items]
Net sales	$ 0	$ 0