v3.25.2
Loans - Financing Receivable, Gross Charge-Offs By Year of Origination (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Commercial Portfolio Segment [Member]        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year $ 1,194,235   $ 1,194,235  
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year 810,091   810,091  
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year 473,001   473,001  
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year 396,346   396,346  
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year 244,404   244,404  
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year 511,946   511,946  
Financing Receivable, Excluding Accrued Interest, Revolving 2,340,836   2,340,836  
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff 4,163 $ 4,282 8,499 $ 6,426
Commercial and Industrial Total Energy Loans [Member]        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year 266,151   266,151  
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year 163,016   163,016  
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year 14,498   14,498  
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year 36,094   36,094  
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year 15,612   15,612  
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year 3,465   3,465  
Financing Receivable, Excluding Accrued Interest, Revolving 808,989   808,989  
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff 0 79 52 79
Commercial Real Estate Buildings Land And Other Loans [Member]        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year 712,432   712,432  
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year 1,361,243   1,361,243  
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year 1,321,385   1,321,385  
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year 1,515,319   1,515,319  
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year 1,106,557   1,106,557  
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year 1,607,253   1,607,253  
Financing Receivable, Excluding Accrued Interest, Revolving 184,828   184,828  
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff     4,639  
Construction Loans [Member]        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year 269,964   269,964  
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year 625,953   625,953  
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year 449,097   449,097  
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year 478,934   478,934  
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year 107,518   107,518  
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year 89   89  
Financing Receivable, Excluding Accrued Interest, Revolving 144,145   144,145  
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff     0  
Total consumer real estate loans [Member]        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff 1,292 408 2,250 2,077
Consumer Loan [Member]        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff 7,290 8,360 14,134 16,617
Loans Receivable [Member]        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff 15,384 $ 13,251 29,574 $ 25,321
Nonperforming Financial Instruments [Member]        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year 11,812   11,812  
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year 2,587   2,587  
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year 9,296   9,296  
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year 4,923   4,923  
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year 2,676   2,676  
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year 10,218   10,218  
Financing Receivable, Excluding Accrued Interest, Revolving 5,409   5,409  
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan 15,472   15,472  
Nonperforming Financial Instruments [Member] | Commercial Portfolio Segment [Member]        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year 8,896   8,896  
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year 2,402   2,402  
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year 6,228   6,228  
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year 3,609   3,609  
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year 1,493   1,493  
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year 2,184   2,184  
Financing Receivable, Excluding Accrued Interest, Revolving 2,652   2,652  
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan 10,551   10,551  
Nonperforming Financial Instruments [Member] | Commercial and Industrial Total Energy Loans [Member]        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year 1,343   1,343  
Financing Receivable, Excluding Accrued Interest, Revolving 2,677   2,677  
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan 0   0  
Nonperforming Financial Instruments [Member] | Commercial Real Estate Buildings Land And Other Loans [Member]        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year 2,916   2,916  
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year 3,013   3,013  
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year 1,314   1,314  
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year 1,183   1,183  
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year 4,378   4,378  
Financing Receivable, Excluding Accrued Interest, Revolving 0   0  
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan 1,254   1,254  
Nonperforming Financial Instruments [Member] | Construction Loans [Member]        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Revolving 0   0  
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan 0   0  
Nonperforming Financial Instruments [Member] | Total consumer real estate loans [Member]        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year 47   47  
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year 2,313   2,313  
Financing Receivable, Excluding Accrued Interest, Revolving 80   80  
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan 3,667   3,667  
Nonperforming Financial Instruments [Member] | Consumer Loan [Member]        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year 185   185  
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year 8   8  
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Revolving 0   0  
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan 0   0  
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Nonperforming Financial Instruments [Member]        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year 7,789   7,789  
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year 4,696   4,696  
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year 2,496   2,496  
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year 484   484  
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year 5,348   5,348  
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year 505   505  
Financing Receivable, Excluding Accrued Interest, Revolving 5,215   5,215  
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan 3,041   3,041  
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Nonperforming Financial Instruments [Member] | Commercial Portfolio Segment [Member]        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year 165   165  
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year 682   682  
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year 1,774   1,774  
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year 101   101  
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year 452   452  
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year 61   61  
Financing Receivable, Excluding Accrued Interest, Revolving 2,752   2,752  
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan 2,512   2,512  
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Nonperforming Financial Instruments [Member] | Commercial and Industrial Total Energy Loans [Member]        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year 52   52  
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Revolving 0   0  
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan 0   0  
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Nonperforming Financial Instruments [Member] | Commercial Real Estate Buildings Land And Other Loans [Member]        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year 4,636   4,636  
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year 3   3  
Financing Receivable, Excluding Accrued Interest, Revolving 0   0  
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan 0   0  
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Nonperforming Financial Instruments [Member] | Construction Loans [Member]        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Revolving 0   0  
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan 0   0  
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Nonperforming Financial Instruments [Member] | Total consumer real estate loans [Member]        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year 0   0  
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year 57   57  
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year 261   261  
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year 110   110  
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year 259   259  
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year 428   428  
Financing Receivable, Excluding Accrued Interest, Revolving 1,135   1,135  
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan 0   0  
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Nonperforming Financial Instruments [Member] | Consumer Loan [Member]        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year 7,624   7,624  
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year 3,957   3,957  
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year 461   461  
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year 221   221  
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year 1   1  
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year 13   13  
Financing Receivable, Excluding Accrued Interest, Revolving 1,328   1,328  
Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan $ 529   $ 529