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Securities - Additional Information (Detail) - USD ($)	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Debt Securities, Available-for-Sale [Line Items]
Proceeds from sales of available for sale securities	$ 0	$ 0
Avaliable for sale of debt securities realized gains or losses	$ 0	$ 0

X

- Definition

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).

+ References

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-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-9

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X

- Definition

Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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- Definition

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.

+ References

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