Fair Value Measurements - Nonmarketable Equity Securities (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost of investments	$ 23,263	$ 14,933
Cumulative impairment	0	0
Cumulative upward adjustment	15,000	5,314
Carrying amount of investments	38,263	$ 20,247
Cost of investments, reclassified	3,000
Cumulative upward adjustment, reclassified	5,300
Marketable equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of securities reclassified	$ 8,300