Fair Value of Financial Instruments - Level 3 Securities (Details) - Recurring $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance at January 1, 2023	$ 6,476
Net unrealized gains (losses)	(212)
Ending Balance at March 31, 2023	6,264
Corporate bonds
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance at January 1, 2023	5,675
Net unrealized gains (losses)	(262)
Ending Balance at March 31, 2023	5,413
Asset-backed securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance at January 1, 2023	801
Net unrealized gains (losses)	50
Ending Balance at March 31, 2023	851
Equities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance at January 1, 2023	0
Net unrealized gains (losses)	0
Ending Balance at March 31, 2023	$ 0