Segment Information - Summary (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	$ 200,527	$ 218,025
Operating income	(55,568)	9,050
Impairment of goodwill and other long-lived assets	61,109	0
Performance Materials
Segment Reporting, Revenue Reconciling Item [Line Items]
Impairment of goodwill and other long-lived assets	61,109
Technical Nonwovens
Segment Reporting, Revenue Reconciling Item [Line Items]
Impairment of goodwill and other long-lived assets	0
Thermal Acoustical Solutions
Segment Reporting, Revenue Reconciling Item [Line Items]
Impairment of goodwill and other long-lived assets	0
Operating Segments \| Performance Materials
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	65,220	64,580
Operating income	(56,941)	1,459
Impairment of goodwill and other long-lived assets	61,100
Amortization of intangible assets	4,000	4,000
Operating Segments \| Performance Materials \| Filtration
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	25,887	23,934
Operating Segments \| Performance Materials \| Sealing and Advanced Solutions
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	39,333	40,646
Operating Segments \| Technical Nonwovens
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	57,403	65,606
Operating income	3,813	4,734
Amortization of intangible assets	1,200	1,300
Operating Segments \| Technical Nonwovens \| Industrial Filtration
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	31,369	42,364
Operating Segments \| Technical Nonwovens \| Advanced Materials
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	26,034	23,242
Intercompany sales	5,000	4,700
Operating Segments \| Thermal Acoustical Solutions
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	83,761	94,313
Operating income	5,628	9,491
Operating Segments \| Thermal Acoustical Solutions \| Parts
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	77,321	84,576
Operating Segments \| Thermal Acoustical Solutions \| Tooling
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	6,440	9,737
Eliminations and Other
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	(5,857)	(6,474)
Corporate Office Expenses
Segment Reporting, Revenue Reconciling Item [Line Items]
Operating income	$ (8,068)	$ (6,634)

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