GOODWILL AND OTHER INTANGIBLE ASSETS - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended			12 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Goodwill [Line Items]
Goodwill impairment	$ 48,671	$ 48,700	$ 63,000	$ 48,671	$ 63,000
Impairment of long-lived assets	12,438
Amortization of intangible assets				20,800	21,500	$ 9,300
Performance Materials
Goodwill [Line Items]
Weighted-average cost of capital (as a percent)		11.50%	9.20%
Goodwill impairment	48,671		$ 63,000	48,671	63,000
Impairment of long-lived assets	12,438	$ 12,400			1,200
Carrying value of property, plant and equipment			$ 3,000		3,000
Thermal Acoustical Solutions
Goodwill [Line Items]
Weighted-average cost of capital (as a percent)		10.80%	9.20%
Goodwill impairment	0
Impairment of long-lived assets	0
Technical Nonwovens
Goodwill [Line Items]
Goodwill impairment	0	$ 0		$ 0	$ 0
Impairment of long-lived assets	$ 0