Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	$ 153,195	$ 182,545		$ 90,596	$ 182,596
Other comprehensive (loss) income		(372)	$ (169)	951	(28)
Ending balance	182,545	164,049	182,545	153,195	90,596
Unrealized Loss on Available-for-Sale Securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(4)	(8)		0
Current period other comprehensive loss before reclassifications	(4)	(4)		(4)
Other comprehensive (loss) income	(4)	(4)		(4)
Ending balance	(8)	(12)	(8)	(4)	0
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	18	(147)		(937)
Current period other comprehensive loss before reclassifications	(165)	(368)		955
Other comprehensive (loss) income	(165)	(368)		955
Ending balance	(147)	(515)	(147)	18	(937)
Accumulated Other Comprehensive (Loss) Income
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	14	(155)		(937)	(909)
Current period other comprehensive loss before reclassifications	(169)	(372)		951
Other comprehensive (loss) income	(169)	(372)		951
Ending balance	$ (155)	$ (527)	$ (155)	$ 14	$ (937)