Organization and Basis of Presentation - Summary of Financial Securities (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Equity securities:
Gross Unrealized (Loss) Gain	$ (46,441)	$ 16,681
Carrying Value	200		$ 800
Available for sale
Equity and Debt Securities, Amortized Cost	151,227		142,398
Equity and Debt Securities, Gross Unrealized Gain (Loss)	3,286		49,431
Equity and Debt Securities, Marketable Securities	154,513		191,829
Investment funds - debt securities
Equity securities:
Cost	63,409		62,192
Gross Unrealized (Loss) Gain	(8,747)		(502)
Carrying Value	54,662		61,690
Common stock and stock funds
Equity securities:
Cost	86,767		79,155
Gross Unrealized (Loss) Gain	11,396		49,592
Carrying Value	98,163		128,747
Investment-grade unsecured debt
Available for sale
Cost	1,051		1,051
Gross Unrealized (Loss) Gain	637		341
Carrying Value	$ 1,688		$ 1,392

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