Fair Value Measurements - Schedule of Marketable Debt Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Amortized Cost	$ 73,693	$ 78,573
Gross Unrealized Gains	742	123
Gross Unrealized Losses	(1,309)	(3,056)
Estimated Fair Value	73,126	75,640
Credit Impairment Losses	0	0
Unrestricted
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Amortized Cost	43,942	53,531
Gross Unrealized Gains	125	0
Gross Unrealized Losses	(1,293)	(2,996)
Estimated Fair Value	42,774	50,535
Credit Impairment Losses	0	0
Unrestricted | Municipal bonds — taxable
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Amortized Cost	4,115	10,276
Gross Unrealized Gains	1	0
Gross Unrealized Losses	(70)	(676)
Estimated Fair Value	4,046	9,600
Credit Impairment Losses	0	0
Unrestricted | Municipal bonds — non-taxable
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Amortized Cost	39,827	43,255
Gross Unrealized Gains	124	0
Gross Unrealized Losses	(1,223)	(2,320)
Estimated Fair Value	38,728	40,935
Credit Impairment Losses	0	0
Restricted
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Amortized Cost	29,751	25,042
Gross Unrealized Gains	617	123
Gross Unrealized Losses	(16)	(60)
Estimated Fair Value	30,352	25,105
Credit Impairment Losses	0	0
Restricted | Municipal bonds — taxable
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Amortized Cost	9,222	9,131
Gross Unrealized Gains	284	40
Gross Unrealized Losses	0	(41)
Estimated Fair Value	9,506	9,130
Credit Impairment Losses	0	0
Restricted | U.S. treasury bonds
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Amortized Cost	9,904	7,276
Gross Unrealized Gains	148	38
Gross Unrealized Losses	(15)	(5)
Estimated Fair Value	10,037	7,309
Credit Impairment Losses	0	0
Restricted | U.S. government agency bonds
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Amortized Cost	1,210	1,208
Gross Unrealized Gains	5	10
Gross Unrealized Losses	0	0
Estimated Fair Value	1,215	1,218
Credit Impairment Losses	0	0
Restricted | International fixed income bonds
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Amortized Cost	733	647
Gross Unrealized Gains	3	5
Gross Unrealized Losses	0	0
Estimated Fair Value	736	652
Credit Impairment Losses	0	0
Restricted | Corporate bonds
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Amortized Cost	8,682	6,780
Gross Unrealized Gains	177	30
Gross Unrealized Losses	(1)	(14)
Estimated Fair Value	8,858	6,796
Credit Impairment Losses	$ 0	$ 0