Summary of Significant Accounting Policies - Equity Instruments and Debt Securities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Equity Instruments and Investments
Equity instruments with readily determinable fair value	$ 97,700	$ 73,000
Equity instruments without readily determinable fair values	240,200	236,200
Reduction in carrying value	0	27,500
Debt securities of our captive insurance companies	$ 79,716	$ 52,325
Securities in captive insurance subsidiary portfolio | Maximum
Equity Instruments and Investments
Short-term investment maturity period	1 year
Investment maturity period	10 years