Investments - Narrative (Details) $ in Thousands	Dec. 31, 2024 USD ($) security	Dec. 31, 2023 USD ($) security
Net Investment Income [Line Items]
Short-term investments	$ 24,099	$ 35,588
Long-term investments	$ 158,652	$ 103,588
Number of securities in an unrealized loss position | security	452	410
Unrealized loss position for 12 months or longer | security	70	80
Certificates of deposit | Asset pledged as collateral
Net Investment Income [Line Items]
Investments, short-term	$ 300
Investments, long-term	1,700	$ 1,300
U.S. Treasury notes | Asset pledged as collateral
Net Investment Income [Line Items]
Investments, short-term	300
Investments, long-term	700	$ 700
Investments Held By Captive Reinsurance Business
Net Investment Income [Line Items]
Investments	15,100
Short-term investments	1,600
Long-term investments	$ 13,500