Segment Information - Net Sales By Segment (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Net sales	$ 193,288	$ 205,274	$ 220,811	$ 218,025	$ 209,938	$ 197,886	$ 186,413	$ 191,660	$ 837,398	$ 785,897	$ 698,437
Operating Segments | Performance Materials Segment
Segment Reporting Information [Line Items]
Net sales									245,480	169,217	116,669
Operating Segments | Performance Materials Segment | Filtration
Segment Reporting Information [Line Items]
Net sales									93,314	93,089	87,173
Operating Segments | Performance Materials Segment | Sealing and Advanced Solutions
Segment Reporting Information [Line Items]
Net sales									152,166	76,128	29,496
Operating Segments | Technical Nonwovens Segment
Segment Reporting Information [Line Items]
Net sales									255,346	277,071	269,077
Operating Segments | Technical Nonwovens Segment | Industrial Filtration
Segment Reporting Information [Line Items]
Net sales									144,320	157,606	147,087
Operating Segments | Technical Nonwovens Segment | Advanced Materials
Segment Reporting Information [Line Items]
Net sales									111,026	119,465	121,990
Operating Segments | Thermal Acoustical Solutions Segment
Segment Reporting Information [Line Items]
Net sales									361,577	365,427	342,105
Operating Segments | Thermal Acoustical Solutions Segment | Parts
Segment Reporting Information [Line Items]
Net sales									326,436	328,057	318,217
Operating Segments | Thermal Acoustical Solutions Segment | Tooling
Segment Reporting Information [Line Items]
Net sales									35,141	37,370	23,888
Eliminations and Other
Segment Reporting Information [Line Items]
Net sales									$ (25,005)	$ (25,818)	$ (29,414)