Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	$ 165,820	$ 173,683
Gross Unrealized Gains	74	19
Gross Unrealized Losses	(617)	(1,067)
Fair Value	165,277	172,635
Municipal Debt Securities
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	27,601	47,897
Gross Unrealized Gains	5	16
Gross Unrealized Losses	(132)	(258)
Fair Value	27,474	47,655
Corporate Debt Securities
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	89,045	93,460
Gross Unrealized Gains	0	1
Gross Unrealized Losses	(386)	(683)
Fair Value	88,659	92,778
U.S. Government Agency Securities
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	49,174	32,326
Gross Unrealized Gains	69	2
Gross Unrealized Losses	(99)	(126)
Fair Value	49,144	32,202
Certificates of Deposit
Debt Securities, Available-for-Sale [Line Items]
Certificates of deposit	$ 6,361	$ 6,301

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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