Goodwill and Other Intangible Assets - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Mar. 31, 2020	Dec. 31, 2019	Jun. 30, 2020
Goodwill [Line Items]
Goodwill impairment	$ 48,671		$ 48,671
Performance Materials
Goodwill [Line Items]
Goodwill impairment	$ 48,671	$ 63,000	$ 48,671

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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