v3.26.1
Loans Receivable and Allowance for Credit Losses - Amortized Basis (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Modified period amount $ 22,644   $ 29,199  
% of Total Class of Loans 0.11% 0.06% 0.15% 0.09%
Mortgage loans        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Modified period amount $ 17,410   $ 20,701  
% of Total Class of Loans 0.13% 0.08% 0.15% 0.11%
Mortgage loans | Commercial        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Modified period amount $ 10,772   $ 14,063  
% of Total Class of Loans 0.14% 0.15% 0.19% 0.20%
Mortgage loans | Multi-family        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Modified period amount $ 0   $ 0  
% of Total Class of Loans 0.00%   0.00%  
Mortgage loans | Construction        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Modified period amount $ 6,639   $ 6,639  
% of Total Class of Loans 1.04%   1.04%  
Commercial loans        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Modified period amount $ 5,233   $ 8,498  
% of Total Class of Loans 0.09% 0.003% 0.15% 0.04%
Term Extension        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Modified period amount $ 15,885 $ 158 $ 18,279 $ 4,286
Term Extension | Mortgage loans        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Modified period amount 10,652 0 10,652 2,984
Term Extension | Mortgage loans | Commercial        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Modified period amount 10,652 0 10,652 2,984
Term Extension | Mortgage loans | Multi-family        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Modified period amount 0   0  
Term Extension | Mortgage loans | Construction        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Modified period amount 0   0  
Term Extension | Commercial loans        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Modified period amount 5,233 158 7,627 1,302
Interest Rate Change        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Modified period amount 0 0 3,291 0
Interest Rate Change | Mortgage loans        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Modified period amount 0 0 3,291 0
Interest Rate Change | Mortgage loans | Commercial        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Modified period amount 0 0 3,291 0
Interest Rate Change | Mortgage loans | Multi-family        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Modified period amount 0   0  
Interest Rate Change | Mortgage loans | Construction        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Modified period amount 0   0  
Interest Rate Change | Commercial loans        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Modified period amount 0 0 0 0
Interest Rate Change and Term Extension        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Modified period amount 6,759 10,918 7,233 12,548
Interest Rate Change and Term Extension | Mortgage loans        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Modified period amount 6,759 10,918 6,759 11,945
Interest Rate Change and Term Extension | Mortgage loans | Commercial        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Modified period amount 120 10,918 120 11,945
Interest Rate Change and Term Extension | Mortgage loans | Multi-family        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Modified period amount 0   0  
Interest Rate Change and Term Extension | Mortgage loans | Construction        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Modified period amount 6,639   6,639  
Interest Rate Change and Term Extension | Commercial loans        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Modified period amount 0 $ 0 474 $ 603
Change in Payment Type        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Modified period amount 0   397  
Change in Payment Type | Mortgage loans        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Modified period amount 0   0  
Change in Payment Type | Mortgage loans | Commercial        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Modified period amount 0   0  
Change in Payment Type | Mortgage loans | Multi-family        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Modified period amount 0   0  
Change in Payment Type | Mortgage loans | Construction        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Modified period amount 0   0  
Change in Payment Type | Commercial loans        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Modified period amount $ 0   $ 397