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

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Loans Receivable and Allowance for Credit Losses - Schedule of Financial Effects of Loan Modifications (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Commercial Lending \| C&I \| Weighted-Average Interest Rate Reduction
Loans Modified
Weighted-Average Interest Rate Reduction		3.38%		3.38%
Commercial Lending \| C&I \| Weighted-average Term Extension (in years)
Loans Modified
Weighted average of loans (in years)	1 year 1 month 6 days	10 months 24 days	1 year 1 month 6 days	1 year
Commercial Lending \| C&I \| Weighted-average Payment Delay (in years)
Loans Modified
Weighted average of loans (in years)	8 months 12 days	8 months 12 days	8 months 12 days	9 months 18 days
Commercial Lending \| CRE \| Weighted-Average Interest Rate Reduction
Loans Modified
Weighted-Average Interest Rate Reduction		0.00%		0.00%
Commercial Lending \| CRE \| Weighted-average Term Extension (in years)
Loans Modified
Weighted average of loans (in years)	1 year 1 month 6 days	3 years 3 months 18 days	1 year 1 month 6 days	3 years 6 months
Commercial Lending \| CRE \| Weighted-average Payment Delay (in years)
Loans Modified
Weighted average of loans (in years)	3 months 18 days	0 years	3 months 18 days	0 years
Commercial Lending \| Multifamily \| Weighted-Average Interest Rate Reduction
Loans Modified
Weighted-Average Interest Rate Reduction		0.00%		0.00%
Commercial Lending \| Multifamily \| Weighted-average Term Extension (in years)
Loans Modified
Weighted average of loans (in years)	0 years	6 months	0 years	8 months 12 days
Commercial Lending \| Multifamily \| Weighted-average Payment Delay (in years)
Loans Modified
Weighted average of loans (in years)	0 years	0 years	0 years	0 years
Commercial Lending \| Construction and land \| Weighted-Average Interest Rate Reduction
Loans Modified
Weighted-Average Interest Rate Reduction		0.00%		0.00%
Commercial Lending \| Construction and land \| Weighted-average Term Extension (in years)
Loans Modified
Weighted average of loans (in years)	0 years	9 months 18 days	0 years	9 months 18 days
Commercial Lending \| Construction and land \| Weighted-average Payment Delay (in years)
Loans Modified
Weighted average of loans (in years)	10 months 24 days	0 years	10 months 24 days	0 years
Consumer Lending \| SFR \| Weighted-Average Interest Rate Reduction
Loans Modified
Weighted-Average Interest Rate Reduction		0.00%		0.00%
Consumer Lending \| SFR \| Weighted-average Term Extension (in years)
Loans Modified
Weighted average of loans (in years)	0 years	10 years	0 years	10 years
Consumer Lending \| SFR \| Weighted-average Payment Delay (in years)
Loans Modified
Weighted average of loans (in years)	1 year 2 months 12 days	1 year 10 months 24 days	9 months 18 days	1 year 6 months
Consumer Lending \| Home equity loans \| Weighted-Average Interest Rate Reduction
Loans Modified
Weighted-Average Interest Rate Reduction		0.50%		0.50%
Consumer Lending \| Home equity loans \| Weighted-average Term Extension (in years)
Loans Modified
Weighted average of loans (in years)	0 years	10 years	0 years	15 years 2 months 12 days
Consumer Lending \| Home equity loans \| Weighted-average Payment Delay (in years)
Loans Modified
Weighted average of loans (in years)	8 months 12 days	5 years 1 month 6 days	9 months 18 days	8 years