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Debt Securities Available for Sale - Debt securities available- for-sale - Additional Information (Details) - USD ($)	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Schedule of Available-for-sale Securities [Line Items]
Proceeds from sale of debt securities available-for-sale	$ 0	$ 0
Gross unrealized losses	$ 960,496,000		$ 1,273,984,000

X

- Definition

Amount, before tax, of unrealized loss 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).

+ References

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-Publisher FASB
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- 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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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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