Investments and Fair Value Measurements - Investment Category and Length (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2022 USD ($) company	Mar. 31, 2021 USD ($)	Dec. 31, 2021 USD ($) company
Summary of fair value and gross unrealized losses related to available-for-sale securities [Abstract]
Fair value, in loss position less than twelve months	$ 11,447		$ 12,151
Gross unrealized (loss), in loss position less than twelve months	(229)		(61)
Fair value, in loss position greater than twelve months	3,002		2,013
Gross unrealized (loss), in loss position greater than twelve months	(7)		(4)
Fair value, total in loss position	14,449		14,164
Gross unrealized (loss), total in loss position	(236)		(65)
Minority Investments
Investments, equity method	$ 11,312		$ 10,166
Number of equity method investments | company	5		5
Impairment charge	$ 0	$ 0
Certificates of Deposit [Member]
Summary of fair value and gross unrealized losses related to available-for-sale securities [Abstract]
Fair value, in loss position less than twelve months	6,590		$ 6,181
Gross unrealized (loss), in loss position less than twelve months	(90)		(19)
Fair value, total in loss position	6,590		6,181
Gross unrealized (loss), total in loss position	(90)		(19)
Corporate Bonds [Member]
Summary of fair value and gross unrealized losses related to available-for-sale securities [Abstract]
Fair value, in loss position less than twelve months	4,857		5,970
Gross unrealized (loss), in loss position less than twelve months	(139)		(42)
Fair value, in loss position greater than twelve months	3,002		2,013
Gross unrealized (loss), in loss position greater than twelve months	(7)		(4)
Fair value, total in loss position	7,859		7,983
Gross unrealized (loss), total in loss position	(146)		(46)
Other Assets [Member]
Minority Investments
Investments, equity method	$ 11,300		$ 10,200