Investments - Summary of Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Investment Carrying Value
Equity method investments	$ 217	$ 263
Variable interest entity, equity method	773	816
Equity securities	3,064	4,226
Equity securities with no readily determinable fair value	5,403	5,408
Warrants and options	15	16
Total carrying value of investments	9,472	10,729
Underlying Equity in Net Assets
Equity method investment, underlying equity in net assets	4,497	3,577
Variable interest entity, equity method, underlying equity in net assets	$ 2,772	$ 3,043