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Restricted Available-for-Sale Investments - Reconciliation of Restricted AFS Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Schedule Of Available For Sale Securities [Line Items]
Estimated Fair Value	$ 24,390	$ 24,211
Restricted Investments
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost, Total	24,428	24,213
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(38)	(2)
Estimated Fair Value	$ 24,390	$ 24,211

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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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