Loans and Leases - Loan Modifications (Details) - Loans and Leases Held for Investment:	3 Months Ended
Mar. 31, 2025	Mar. 31, 2024
Interest Rate Reduction \| Multi-family \| Minimum
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average contractual interest rate		8.13%
Interest Rate Reduction \| Multi-family \| Maximum
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average contractual interest rate		6.95%
Interest Rate Reduction \| Commercial real estate \| Minimum
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average contractual interest rate	0.00%	8.08%
Interest Rate Reduction \| Commercial real estate \| Maximum
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average contractual interest rate	0.00%	6.00%
Interest Rate Reduction \| One-to-four family first mortgage \| Minimum
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average contractual interest rate	9.24%	4.66%
Interest Rate Reduction \| One-to-four family first mortgage \| Maximum
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average contractual interest rate	4.24%	3.76%
Interest Rate Reduction \| Commercial and industrial \| Minimum
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average contractual interest rate		6.78%
Interest Rate Reduction \| Commercial and industrial \| Maximum
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average contractual interest rate		6.50%
Interest Rate Reduction \| Other \| Minimum
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average contractual interest rate	10.74%	11.01%
Interest Rate Reduction \| Other \| Maximum
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average contractual interest rate	0.00%	4.76%
Term Extension \| Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average Term (in years)	1 year 29 days
Term Extension \| One-to-four family first mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average Term (in years)	1 year 3 months 18 days	15 years 3 months 18 days
Term Extension \| Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average Term (in years)		3 months 18 days
Term Extension \| Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average Term (in years)		1 year 9 months 18 days

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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