Impairments of Goodwill and Other Long-Lived Assets - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Impairment of goodwill	$ 48,671
Goodwill	82,668	$ 133,912
Carrying value of property, plant and equipment	204,776	221,642
Impairment of other long-lived assets	12,438
Performance Materials
Segment Reporting Information [Line Items]
Impairment of goodwill	$ 48,671	$ 63,000
Weighted-average cost of capital (as a percent)	11.50%	9.20%
Goodwill	$ 31,933	$ 80,658
Impairment of other long-lived assets	12,438	$ 1,200
Thermal Acoustical Solutions
Segment Reporting Information [Line Items]
Impairment of goodwill	$ 0
Weighted-average cost of capital (as a percent)	10.80%	9.20%
Impairment of other long-lived assets	$ 0