Debt Securities Available for Sale - Debt securities available- for-sale - Additional Information (Details) - USD ($)	9 Months Ended
Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Schedule of Available-for-sale Securities [Line Items]
Proceeds from sale of debt securities available-for-sale	$ 0	$ 0
Gross unrealized losses	$ 1,050,182,000		$ 1,373,513,000

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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+ Details