v3.26.3
Loan Portfolio and Allowance for Credit Losses - Recorded Investment in Loans by Portfolio Segment (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Jun. 30, 2026
Dec. 31, 2025
Sep. 30, 2025
Jun. 30, 2025
Dec. 31, 2024
Loan Portfolio and Allowance for Credit Losses [Abstract]            
Total loans, net $ 5,454,286   $ 5,252,460      
Less: Allowance for credit losses on loans 55,162 $ 54,082 52,205 $ 51,891 $ 51,265 $ 50,248
Net loans 5,399,124   5,200,255      
Commercial [Member]            
Loan Portfolio and Allowance for Credit Losses [Abstract]            
Total loans, net 332,406   313,443      
Less: Allowance for credit losses on loans 3,471 3,379 3,081 3,131 3,134 3,420
Real Estate Mortgage - 1 to 4 Family [Member]            
Loan Portfolio and Allowance for Credit Losses [Abstract]            
Total loans, net 5,112,441   4,927,461      
Less: Allowance for credit losses on loans 51,551 50,555 48,895 48,517 47,877 46,636
Installment [Member]            
Loan Portfolio and Allowance for Credit Losses [Abstract]            
Total loans, net 9,439   11,556      
Less: Allowance for credit losses on loans 140 $ 148 229 $ 243 $ 254 $ 192
New York and Other States [Member]            
Loan Portfolio and Allowance for Credit Losses [Abstract]            
Total loans, net [1] 3,537,036   3,378,133      
New York and Other States [Member] | Installment [Member]            
Loan Portfolio and Allowance for Credit Losses [Abstract]            
Total loans, net [1] 6,856   8,497      
Florida [Member]            
Loan Portfolio and Allowance for Credit Losses [Abstract]            
Total loans, net 1,917,250   1,874,327      
Florida [Member] | Installment [Member]            
Loan Portfolio and Allowance for Credit Losses [Abstract]            
Total loans, net 2,583   3,059      
Commercial Real Estate [Member] | Commercial [Member]            
Loan Portfolio and Allowance for Credit Losses [Abstract]            
Total loans, net 312,397   295,107      
Commercial Real Estate [Member] | New York and Other States [Member] | Commercial [Member]            
Loan Portfolio and Allowance for Credit Losses [Abstract]            
Total loans, net [1] 261,270   245,799      
Commercial Real Estate [Member] | Florida [Member] | Commercial [Member]            
Loan Portfolio and Allowance for Credit Losses [Abstract]            
Total loans, net 51,127   49,308      
Other [Member] | Commercial [Member]            
Loan Portfolio and Allowance for Credit Losses [Abstract]            
Total loans, net 20,009   18,336      
Other [Member] | New York and Other States [Member] | Commercial [Member]            
Loan Portfolio and Allowance for Credit Losses [Abstract]            
Total loans, net [1] 19,009   17,841      
Other [Member] | Florida [Member] | Commercial [Member]            
Loan Portfolio and Allowance for Credit Losses [Abstract]            
Total loans, net 1,000   495      
First Mortgages [Member] | Real Estate Mortgage - 1 to 4 Family [Member]            
Loan Portfolio and Allowance for Credit Losses [Abstract]            
Total loans, net 4,545,717   4,399,224      
First Mortgages [Member] | New York and Other States [Member] | Real Estate Mortgage - 1 to 4 Family [Member]            
Loan Portfolio and Allowance for Credit Losses [Abstract]            
Total loans, net [1] 2,906,695   2,794,515      
First Mortgages [Member] | Florida [Member] | Real Estate Mortgage - 1 to 4 Family [Member]            
Loan Portfolio and Allowance for Credit Losses [Abstract]            
Total loans, net 1,639,022   1,604,709      
Home Equity Loans [Member] | Real Estate Mortgage - 1 to 4 Family [Member]            
Loan Portfolio and Allowance for Credit Losses [Abstract]            
Total loans, net 68,636   64,036      
Home Equity Loans [Member] | New York and Other States [Member] | Real Estate Mortgage - 1 to 4 Family [Member]            
Loan Portfolio and Allowance for Credit Losses [Abstract]            
Total loans, net [1] 49,174   46,421      
Home Equity Loans [Member] | Florida [Member] | Real Estate Mortgage - 1 to 4 Family [Member]            
Loan Portfolio and Allowance for Credit Losses [Abstract]            
Total loans, net 19,462   17,615      
Home Equity Lines of Credit [Member] | Real Estate Mortgage - 1 to 4 Family [Member]            
Loan Portfolio and Allowance for Credit Losses [Abstract]            
Total loans, net 498,088   464,201      
Home Equity Lines of Credit [Member] | New York and Other States [Member] | Real Estate Mortgage - 1 to 4 Family [Member]            
Loan Portfolio and Allowance for Credit Losses [Abstract]            
Total loans, net [1] 294,032   265,060      
Home Equity Lines of Credit [Member] | Florida [Member] | Real Estate Mortgage - 1 to 4 Family [Member]            
Loan Portfolio and Allowance for Credit Losses [Abstract]            
Total loans, net $ 204,056   $ 199,141      
[1] Includes New York, New Jersey, Vermont and Massachusetts.