Fair Value Measurements - Schedule of Amortized Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amortized Cost	$ 54,060		$ 74,201
Gross Unrealized Gains	0		0
Gross Unrealized Losses	(1,144)		(1,486)
Fair Value	52,916		72,715
Accrued interest receivable	1,600		1,700
Realized gains (losses) on marketable securities	0	$ 0
U.S. Treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amortized Cost	7,490		15,437
Gross Unrealized Gains	0		0
Gross Unrealized Losses	(13)		(64)
Fair Value	7,477		15,373
Yankee bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amortized Cost			2,601
Gross Unrealized Gains			0
Gross Unrealized Losses			(13)
Fair Value			2,588
Agency bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amortized Cost	2,471		6,056
Gross Unrealized Gains	0		0
Gross Unrealized Losses	(45)		(56)
Fair Value	2,426		6,000
Municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amortized Cost	12,658		12,694
Gross Unrealized Gains	0		0
Gross Unrealized Losses	(518)		(597)
Fair Value	12,140		12,097
Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amortized Cost	3,119		4,971
Gross Unrealized Gains	0		0
Gross Unrealized Losses	(5)		(37)
Fair Value	3,114		4,934
Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amortized Cost	28,322		32,442
Gross Unrealized Gains	0		0
Gross Unrealized Losses	(563)		(719)
Fair Value	$ 27,759		$ 31,723