Discontinued Operations - Statement of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Costs and expenses:
Loss before income taxes	$ 1,161	$ 0	$ (22,666)	$ 0
Income tax benefit	0		0
Income (loss) from discontinued operations, net of taxes	1,140	(26,482)	(25,268)	(33,540)
API | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	0	25,262	6,388	84,990
Costs and expenses:
Cost of goods sold	0	27,125	6,085	81,800
Selling, general and administrative expenses	21	6,043	2,520	17,000
Goodwill impairment charges	0	17,634	0	17,634
Other expenses, net	0	973	385	2,248
Total costs and expenses	21	51,775	8,990	118,682
Loss before income taxes	(21)	(26,513)	(2,602)	(33,692)
Income tax benefit		31		152
Income (loss) from discontinued operations, net of taxes	$ (21)	$ (26,482)	$ (2,602)	$ (33,540)