v3.26.1
Allowance for Credit Losses (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Financing Receivable, Allowance for Credit Loss [Line Items]          
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss $ 6,919,381   $ 6,919,381   $ 6,563,685
Real Estate Acquired Through Foreclosure 7,166   7,166   4,582
SBB Loans 16,160   16,160   16,022
Canopy Loans 36,554   36,554   36,554
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss 3,370   3,370    
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss 1,612   1,612    
Receivables [Abstract]          
Total mortgage loans 6,919,381   6,919,381   6,563,685
Mortgage Loans in Process of Foreclosure, Amount $ 4,632   $ 4,632   $ 2,161
Serious delinquency rate 0.50%   0.50%   0.50%
Past due 90 days or more and still accruing interest $ 8   $ 8   $ 0
Non-accrual loans 47,443   47,443   43,692
Financial Asset, 30 to 59 Days Past Due [Member]          
Financing Receivable, Allowance for Credit Loss [Line Items]          
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 83,149   83,149   79,081
Financial Asset, 60 to 89 Days Past Due [Member]          
Financing Receivable, Allowance for Credit Loss [Line Items]          
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 31,893   31,893   23,606
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]          
Financing Receivable, Allowance for Credit Loss [Line Items]          
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 36,768   36,768   32,900
US Government Agency Insured Loans [Member]          
Receivables [Abstract]          
Total mortgage loans 3,011   3,011   3,559
Mortgage Loans in Process of Foreclosure, Amount $ 0   $ 0   $ 0
Serious delinquency rate 0.30%   0.30%   0.00%
Past due 90 days or more and still accruing interest $ 8   $ 8   $ 0
Non-accrual loans 0   0   0
US Government Agency Insured Loans [Member] | Financial Asset, 30 to 59 Days Past Due [Member]          
Financing Receivable, Allowance for Credit Loss [Line Items]          
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 68   68   189
US Government Agency Insured Loans [Member] | Financial Asset, 60 to 89 Days Past Due [Member]          
Financing Receivable, Allowance for Credit Loss [Line Items]          
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 52   52   21
US Government Agency Insured Loans [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]          
Financing Receivable, Allowance for Credit Loss [Line Items]          
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 8   8   0
Nonperforming Financial Instruments [Member]          
Financing Receivable, Allowance for Credit Loss [Line Items]          
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 151,810   151,810   135,587
Interest payments applied to principal on Non-Accrual Loans 7,921   7,921   7,119
Nonperforming Financial Instruments [Member] | US Government Agency Insured Loans [Member]          
Financing Receivable, Allowance for Credit Loss [Line Items]          
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 128   128   210
Performing Financial Instruments [Member]          
Financing Receivable, Allowance for Credit Loss [Line Items]          
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 6,767,571   6,767,571   6,428,098
Performing Financial Instruments [Member] | US Government Agency Insured Loans [Member]          
Financing Receivable, Allowance for Credit Loss [Line Items]          
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 2,883   2,883   3,349
Conventional Mortgage Loan [Member]          
Financing Receivable, Allowance for Credit Loss [Line Items]          
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year 2,216,662   2,216,662   1,361,723
Financing Receivable, Originated, Current Fiscal Year and Four Preceding Fiscal Years 4,699,708   4,699,708   5,198,403
Receivables [Abstract]          
Total mortgage loans 6,916,370   6,916,370   6,560,126
Mortgage Loans in Process of Foreclosure, Amount $ 4,632   $ 4,632   $ 2,161
Serious delinquency rate 0.50%   0.50%   0.50%
Past due 90 days or more and still accruing interest $ 0   $ 0   $ 0
Non-accrual loans 47,443   47,443   43,692
Financing Receivable, Allowance for Credit Loss [Roll Forward]          
Balance, beginning of period 8,673 $ 7,590 8,554 $ 7,187  
Provision (reversal) for credit losses 818 (233) 937 170  
Balance, end of period 9,491 7,357 9,491 7,357  
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest 9,491 7,357 9,491 7,357 8,554
Conventional Mortgage Loan [Member] | Financial Asset, 30 to 59 Days Past Due [Member]          
Financing Receivable, Allowance for Credit Loss [Line Items]          
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year 32,931   32,931   21,469
Financing Receivable, Originated, Current Fiscal Year and Four Preceding Fiscal Years 50,150   50,150   57,423
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 83,081   83,081   78,892
Conventional Mortgage Loan [Member] | Financial Asset, 60 to 89 Days Past Due [Member]          
Financing Receivable, Allowance for Credit Loss [Line Items]          
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year 9,695   9,695   6,327
Financing Receivable, Originated, Current Fiscal Year and Four Preceding Fiscal Years 22,146   22,146   17,258
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 31,841   31,841   23,585
Conventional Mortgage Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]          
Financing Receivable, Allowance for Credit Loss [Line Items]          
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year 16,024   16,024   9,176
Financing Receivable, Originated, Current Fiscal Year and Four Preceding Fiscal Years 20,736   20,736   23,724
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 36,760   36,760   32,900
Conventional Mortgage Loan [Member] | Nonperforming Financial Instruments [Member]          
Financing Receivable, Allowance for Credit Loss [Line Items]          
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year 58,650   58,650   36,972
Financing Receivable, Originated, Current Fiscal Year and Four Preceding Fiscal Years 93,032   93,032   98,405
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 151,682   151,682   135,377
Conventional Mortgage Loan [Member] | Performing Financial Instruments [Member]          
Financing Receivable, Allowance for Credit Loss [Line Items]          
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year 2,158,012   2,158,012   1,324,751
Financing Receivable, Originated, Current Fiscal Year and Four Preceding Fiscal Years 4,606,676   4,606,676   5,099,998
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 6,764,688   6,764,688   6,424,749
Small Business Boost          
Financing Receivable, Allowance for Credit Loss [Roll Forward]          
Balance, beginning of period 2,093 1,802 2,094 1,795  
Chargeoffs 0 0 7 57  
Provision (reversal) for credit losses 19 19 25 83  
Balance, end of period 2,112 1,821 2,112 1,821  
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest 2,112 1,821 2,112 1,821 2,094
Canopy Loan          
Financing Receivable, Allowance for Credit Loss [Roll Forward]          
Balance, beginning of period 5,849 4,009 5,849 2,312  
Provision (reversal) for credit losses 0 1,840 0 3,537  
Balance, end of period 5,849 5,849 5,849 5,849  
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest $ 5,849 $ 5,849 $ 5,849 $ 5,849 $ 5,849