Loans Receivable and Allowance for Credit Losses - Financial Effect (Details)	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted Average Months of Term Extension	8 months	3 months	9 months
Weighted Average Rate Increase (Decrease)	(0.05%)	3.03%	0.61%
Mortgage Portfolio Segment
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted Average Months of Term Extension	15 months	1 month	2 months
Weighted Average Rate Increase (Decrease)	0.35%	5.00%	2.23%
Mortgage Portfolio Segment \| Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted Average Months of Term Extension	15 months	2 months
Weighted Average Rate Increase (Decrease)	0.35%	2.40%
Mortgage Portfolio Segment \| Multi-family
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted Average Months of Term Extension		0 months	2 months
Weighted Average Rate Increase (Decrease)		5.00%	2.23%
Commercial loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted Average Months of Term Extension	6 months	2 months	10 months
Weighted Average Rate Increase (Decrease)	(0.16%)	2.22%	0.20%

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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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 the reported fact of one year, five months, and thirteen days.

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