Borrowings - Additional Information (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2025	Dec. 31, 2024
Subordinated Borrowing [Line Items]
Subordinated Borrowing, Interest Rate	4.55%
Customer repurchase agreements	$ 451,258	$ 261,887
Weighted average interest rates	2.00%	1.33%
Federal Home Loan Bank Advances [Member]
Subordinated Borrowing [Line Items]
Other Loans Payable Long Term	$ 500,000
Loans pledged as collaterals	6,430,000
Investment securities with carrying value	$ 4,560,000
Federal Home Loan Bank Advances May Two Thousand Twenty Six [Member]
Subordinated Borrowing [Line Items]
Borrowed funds cost percentage	4.73%
Maturities of Subordinated Debt	$ 300,000
Federal Home Loan Bank Advances May Two Thousand Twenty Seven [Member]
Subordinated Borrowing [Line Items]
Borrowed funds cost percentage	4.27%
Maturities of Subordinated Debt	$ 200,000

Loans Pledged As Collaterals

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Weighted average interest rate.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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The cash outflow for a long-term borrowing where lender is placed in a lien position behind debt having a higher priority of repayment (senior) in case of liquidation of the entity's assets as it matures.

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Amount of long-term loans classified as other, payable after one year or the operating cycle, if longer.

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Amount, after the effects of master netting arrangements, of funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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Stated interest rate of the subordinated debt.

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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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Debt securities issued by a United States government agency such as Government National Mortgage Association (Ginnie Mae), Federal Home Loan Mortgage Corporation (Freddie Mac), and Federal National Mortgage Association (Fannie Mae), which are short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months.

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