Short-term Borrowings (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2025	Dec. 31, 2024
Short-term Borrowings [Abstract]
Remaining borrowing capacity	$ 2,100,000	$ 2,100,000
Loans held for investment	3,532,383	3,603,105
FHLB of San Francisco [Member]
Short-term Borrowings [Abstract]
Maximum borrowing capacity	$ 807,300
Interest rate	4.36%
FHLB of San Francisco [Member] \| Real Estate [Member]
Short-term Borrowings [Abstract]
Collateral amount	$ 1,200,000
FHLB of San Francisco [Member] \| Investment Securities [Member]
Short-term Borrowings [Abstract]
Collateral amount	1,400
Federal Reserve Bank [Member]
Short-term Borrowings [Abstract]
Remaining borrowing capacity	1,100,000
Collateral amount	1,400,000
Outstanding advances	$ 0	$ 0
Federal Reserve Bank [Member] \| Asset Pledged as Collateral [Member]
Short-term Borrowings [Abstract]
Interest rate	4.25%
Loans held for investment	$ 1,400,000

Amount of assets pledged to secure a debt instrument.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

The effective interest rate during the reporting period.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

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- Definition

Amortized cost, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

+ 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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No definition available.

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