Loans - Financial Effect of Loan Modifications (Details)	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Multifamily
Financing Receivable, Modified [Line Items]
Weighted-Average Interest Rate Reduction	1.13%
Commercial and industrial
Financing Receivable, Modified [Line Items]
Weighted-Average Term Extension (in months)	36 months	0 months
Weighted-Average Interest Rate Reduction	0.75%	2.50%

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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- Definition

Percentage of decrease in weighted average contractual interest rate of financing receivable modified for debtor experiencing financial difficulty.

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- Definition

Period of increase in weighted average maturity of financing receivable modified for debtor experiencing financial difficulty, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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