Discontinued Operations - Narrative (Details) - USD ($)		3 Months Ended
	Jul. 03, 2017	Mar. 31, 2019	Mar. 31, 2020	Dec. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Non-current assets held for sale			$ 0	$ 500,000
Disposed of by Sale | Darex
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration received/receivable for disposal	$ 1,060,000,000.00
After-tax gain on sale		$ 7,200,000
Non-current assets held for sale			0	500,000
Provision for income taxes of discontinued operations		$ 2,400,000
Term of transition services agreement	35 months
Indemnification payable			900,000	900,000
Disposed of by Sale | Darex | Other current liabilities
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal group, deferred consideration			$ 0	$ 500,000