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Credit Quality and Allowance for Credit Losses - Summary of Financial Impacts of Loan Modifications (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2026 USD ($)	Mar. 31, 2025 USD ($)
One- to four-family first mortgage | Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Payment Deferral (dollars in thousands)	$ 0	$ 0
One- to four-family first mortgage | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-Average Term Extension (in months)	0 months	60 months
Weighted-Average Interest Rate Reduction	0	0
Home equity loans and lines | Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Payment Deferral (dollars in thousands)	$ 0	$ 0
Home equity loans and lines | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-Average Term Extension (in months)	0 months	0 months
Weighted-Average Interest Rate Reduction	0	0
Commercial real estate | Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Payment Deferral (dollars in thousands)	$ 0	$ 0
Commercial real estate | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-Average Term Extension (in months)	5 months	12 months
Weighted-Average Interest Rate Reduction	0	0
Construction and land | Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Payment Deferral (dollars in thousands)	$ 0	$ 0
Construction and land | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-Average Term Extension (in months)	0 months	3 months
Weighted-Average Interest Rate Reduction	0	0
Multi-family residential | Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Payment Deferral (dollars in thousands)	$ 0	$ 0
Multi-family residential | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-Average Term Extension (in months)	0 months	0 months
Weighted-Average Interest Rate Reduction	0	0
Commercial and industrial | Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Payment Deferral (dollars in thousands)	$ 0	$ 0
Commercial and industrial | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-Average Term Extension (in months)	3 months	3 months
Weighted-Average Interest Rate Reduction	0.015	0
Consumer | Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Payment Deferral (dollars in thousands)	$ 0	$ 0
Consumer | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-Average Term Extension (in months)	0 months	0 months
Weighted-Average Interest Rate Reduction	0	0

X

- Definition

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+ References

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- Definition

Amount of increase (decrease) in amortized cost excluding accrued interest, of financing receivable modified for debtor experiencing financial difficulty.

+ References

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-Topic 310
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