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Restricted Available-for-Sale Investments - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Schedule Of Available For Sale Securities [Line Items]
Accrued interest receivable	$ 38		$ 38		$ 13
Debt securities available for sale accrued interest after allowance for credit loss statement of financial position extensible list not disclosed flag			true		true
Restricted Investments
Schedule Of Available For Sale Securities [Line Items]
Gross realized gains or losses	$ 0	$ 0	$ 0	$ 0

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Amount, after allowance for credit loss, of accrued interest 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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Amount of realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), investment in debt security measured at amortized cost (held-to-maturity) and investment in debt security measured at fair value with change in fair value recognized in net income (trading).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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