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Restricted Available-for-Sale Investments - Reconciliation of Restricted AFS Investments (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Schedule Of Available For Sale Securities [Line Items]
Estimated Fair Value	$ 22,344	$ 21,712
Restricted Investments
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	22,355	21,633
Gross Unrealized Gains	14	92
Gross Unrealized Losses	(25)	(13)
Estimated Fair Value	$ 22,344	$ 21,712

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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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