Discontinued Operations - Summary of Significant Non-Cash Items and Purchases of Property, Plant and Equipment on Cash Flows (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation and amortization	$ 13,701	$ 18,711
Gain on sale of discontinued operations	(672)	0
Loss on release of cumulative foreign currency translation adjustment	26,957	0
Unrealized and realized (appreciation) depreciation on equity securities and preferred stock, net	106	(2,634)
Equity in net loss of EnviroFlight	1,163	5,034
Stock-based compensation expense	13,869	14,538
Deferred income taxes	(204)	(1,448)
Cash flows from investing activities
Investments in EnviroFlight	0	(3,713)
Purchases of property, plant and equipment	(6,058)	(33,199)
Discontinued Operations, Held-for-sale
Adjustments to reconcile net loss to net cash used in operating activities
Loss on release of cumulative foreign currency translation adjustment	26,957
TS Biotechnology Holdings LLC and EnviroFlight LLC | Discontinued Operations, Held-for-sale
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation and amortization	0	3,740
Gain on sale of discontinued operations	(672)	0
Loss on release of cumulative foreign currency translation adjustment	26,957	0
Unrealized and realized (appreciation) depreciation on equity securities and preferred stock, net	106	436
Equity in net loss of EnviroFlight	38	3,091
Stock-based compensation expense	(1,346)	1,969
Deferred income taxes	0	(1,389)
Cash flows from investing activities
Investments in EnviroFlight	0	(2,000)
Purchases of property, plant and equipment	$ (382)	$ (21,514)