Discontinued Operations - Summary of Financial Results (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on release of cumulative foreign currency translation adjustment			$ (26,957,000)	$ 0
Income (loss) from discontinued operations	$ 0	$ (4,580,000)	(26,056,000)	(20,442,000)
Discontinued Operations, Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue		4,744,000	1,294,000	8,644,000
Operating expenses		8,724,000	896,000	27,147,000
Operating income (loss)		(3,980,000)	398,000	(18,503,000)
Gain on sale of discontinued operations			672,000
Other income, net		59,000
Loss on release of cumulative foreign currency translation adjustment			(26,957,000)
Other expense, net			(129,000)	(438,000)
Equity in net loss of affiliates		(1,168,000)	(38,000)	(3,091,000)
Income (loss) before income taxes		(5,089,000)	(26,054,000)	(22,032,000)
Income tax benefit (expense)		509,000	(2,000)	1,590,000
Income (loss) from discontinued operations	$ 0	(4,580,000)	(26,056,000)	(20,442,000)
TS Biotechnology Sale | Discontinued Operations, Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue		4,744,000	1,294,000	8,644,000
Operating expenses		8,606,000	896,000	26,794,000
Operating income (loss)		(3,862,000)	398,000	(18,150,000)
Gain on sale of discontinued operations			633,000
Other income, net		59,000
Loss on release of cumulative foreign currency translation adjustment			(26,957,000)
Other expense, net			(129,000)	(438,000)
Income (loss) before income taxes		(3,803,000)	(26,055,000)	(18,588,000)
Income tax benefit (expense)		509,000	(2,000)	1,590,000
Income (loss) from discontinued operations		(3,294,000)	(26,057,000)	(16,998,000)
EnviroFlight Sale | Discontinued Operations, Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue		0	0	0
Operating expenses		118,000	0	353,000
Operating income (loss)		(118,000)	0	(353,000)
Gain on sale of discontinued operations			39,000
Other income, net		0
Loss on release of cumulative foreign currency translation adjustment			0
Other expense, net			0	0
Equity in net loss of affiliates		(1,168,000)	(38,000)	(3,091,000)
Income (loss) before income taxes		(1,286,000)	1,000	(3,444,000)
Income tax benefit (expense)		0	0	0
Income (loss) from discontinued operations		(1,286,000)	1,000	(3,444,000)
Related Parties, Aggregated | TS Biotechnology Sale | Discontinued Operations, Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue		$ 1,577,000	$ 436,000	$ 1,807,000