Investments - Investments in Equity Securities (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Equity Securities
Beginning balance	$ 73,600	$ 6,900
New investments	45,200	50,800
Reclassification from investments in equity securities to equity method investments	(36,800)
(Decrease) increase in fair value of investments in equity securities	3,200	14,100
Realized gain on investment in equity securities	2,600	0	$ 0
Foreign currency translation adjustments and other	(2,400)	1,800
Ending balance	77,800	73,600	6,900
Earthly Labs Inc.
Equity Securities
Reclassification due to acquisition of investee	(7,600)
Realized gain on investment in equity securities	2,600
Investment in Equity Securities Level 1
Equity Securities
Beginning balance	53,800	0
New investments	0	35,100
Reclassification from investments in equity securities to equity method investments	0
(Decrease) increase in fair value of investments in equity securities	(19,700)	17,000
Realized gain on investment in equity securities	0
Foreign currency translation adjustments and other	(2,800)	1,700
Ending balance	31,300	53,800	0
Investment in Equity Securities Level 1 \| Earthly Labs Inc.
Equity Securities
Reclassification due to acquisition of investee	0
Investment in Equity Securities, Level 2
Equity Securities
Beginning balance	4,100	6,900
New investments	0	0
Reclassification from investments in equity securities to equity method investments	0
(Decrease) increase in fair value of investments in equity securities	2,200	(2,900)
Realized gain on investment in equity securities	0
Foreign currency translation adjustments and other	(100)	100
Ending balance	6,200	4,100	6,900
Investment in Equity Securities, Level 2 \| Earthly Labs Inc.
Equity Securities
Reclassification due to acquisition of investee	0
Investments in Equity Securities, All Others
Equity Securities
Beginning balance	15,700	0
New investments	45,200	15,700
Reclassification from investments in equity securities to equity method investments	(36,800)
(Decrease) increase in fair value of investments in equity securities	20,700	0
Realized gain on investment in equity securities	2,600
Foreign currency translation adjustments and other	500	0
Ending balance	40,300	$ 15,700	$ 0
Investments in Equity Securities, All Others \| Earthly Labs Inc.
Equity Securities
Reclassification due to acquisition of investee	$ (7,600)

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