v3.26.1
Loans and Allowance for Credit Losses - Schedule of Financing Receivable, Allowance for Credit Loss (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Allowance for credit losses on loans          
Balance at beginning of period $ 149,889 $ 153,738 $ 149,674 $ 154,279 $ 154,279
Provision for credit losses on loans 3,543 (41) 6,668 2,871  
Loans charged off (4,687) (5,909) (10,185) (11,536) (21,196)
Recoveries on loans previously charged off 1,672 1,593 4,260 3,767  
Balance at end of period 150,417 149,381 150,417 149,381 149,674
Liability for unfunded commitments          
Balance at beginning of period 369 490 349 484 484
Provision for credit losses on unfunded lending commitments (9) 34 11 40  
Balance at end of period 360 524 360 524 349
Allowance for credit losses on loans and liability for unfunded lending commitments 150,777 149,905 150,777 149,905  
Construction and development          
Allowance for credit losses on loans          
Balance at beginning of period 12,219 12,991 14,983 14,119 14,119
Provision for credit losses on loans 1,154 1,001 (1,611) (143)  
Loans charged off 0 0 0 0 (14)
Recoveries on loans previously charged off 1 3 2 19  
Balance at end of period 13,374 13,995 13,374 13,995 14,983
Liability for unfunded commitments          
Balance at beginning of period 91 231 104 165 165
Provision for credit losses on unfunded lending commitments (1) 24 (14) 90  
Balance at end of period 90 255 90 255 104
Allowance for credit losses on loans and liability for unfunded lending commitments 13,464 14,250 13,464 14,250  
Commercial, financial & agricultural          
Allowance for credit losses on loans          
Balance at beginning of period 25,127 23,874 23,474 23,915 23,915
Provision for credit losses on loans 2,263 1,450 4,335 1,778  
Loans charged off (960) (1,681) (2,804) (2,467) (4,749)
Recoveries on loans previously charged off 229 269 1,654 686  
Balance at end of period 26,659 23,912 26,659 23,912 23,474
Liability for unfunded commitments          
Balance at beginning of period 138 138 116 161 161
Provision for credit losses on unfunded lending commitments (7) (1) 15 (24)  
Balance at end of period 131 137 131 137 116
Allowance for credit losses on loans and liability for unfunded lending commitments 26,790 24,049 26,790 24,049  
Commercial real estate | Non-owner occupied CRE          
Allowance for credit losses on loans          
Balance at beginning of period 25,607 26,382 24,637 24,815 24,815
Provision for credit losses on loans (847) (788) (30) 1,595  
Loans charged off 0 0 0 (816) (816)
Recoveries on loans previously charged off 5 0 158 0  
Balance at end of period 24,765 25,594 24,765 25,594 24,637
Liability for unfunded commitments          
Balance at beginning of period 8 6 8 6 6
Provision for credit losses on unfunded lending commitments (3) 0 (3) 0  
Balance at end of period 5 6 5 6 8
Allowance for credit losses on loans and liability for unfunded lending commitments 24,770 25,600 24,770 25,600  
Commercial real estate | Owner occupied CRE          
Allowance for credit losses on loans          
Balance at beginning of period 10,609 10,451 10,260 9,940 9,940
Provision for credit losses on loans (553) (8) (151) 502  
Loans charged off 0 0 (103) 0 (384)
Recoveries on loans previously charged off 385 1 435 2  
Balance at end of period 10,441 10,444 10,441 10,444 10,260
Liability for unfunded commitments          
Balance at beginning of period 9 9 7 10 10
Provision for credit losses on unfunded lending commitments 0 (1) 2 (2)  
Balance at end of period 9 8 9 8 7
Allowance for credit losses on loans and liability for unfunded lending commitments 10,450 10,452 10,450 10,452  
Residential real estate | Residential mortgage loans          
Allowance for credit losses on loans          
Balance at beginning of period 49,028 44,000 48,341 43,471 43,471
Provision for credit losses on loans 71 1,931 820 2,516  
Loans charged off (157) (188) (240) (358) (731)
Recoveries on loans previously charged off 14 22 35 136  
Balance at end of period 48,956 45,765 48,956 45,765 48,341
Liability for unfunded commitments          
Balance at beginning of period 10 13 9 7 7
Provision for credit losses on unfunded lending commitments 1 5 2 11  
Balance at end of period 11 18 11 18 9
Allowance for credit losses on loans and liability for unfunded lending commitments 48,967 45,783 48,967 45,783  
Residential real estate | Home equity lines of credit          
Allowance for credit losses on loans          
Balance at beginning of period 5,836 4,757 5,542 4,505 4,505
Provision for credit losses on loans 79 334 387 585  
Loans charged off (39) 0 (54) 0 (64)
Recoveries on loans previously charged off 32 2 33 3  
Balance at end of period 5,908 5,093 5,908 5,093 5,542
Liability for unfunded commitments          
Balance at beginning of period 113 93 105 135 135
Provision for credit losses on unfunded lending commitments 1 7 9 (35)  
Balance at end of period 114 100 114 100 105
Allowance for credit losses on loans and liability for unfunded lending commitments 6,022 5,193 6,022 5,193  
Consumer | Consumer credit card          
Allowance for credit losses on loans          
Balance at beginning of period 8,603 7,990 8,806 8,299 8,299
Provision for credit losses on loans 887 756 1,533 1,092  
Loans charged off (1,015) (770) (2,136) (1,604) (3,452)
Recoveries on loans previously charged off 279 181 551 370  
Balance at end of period 8,754 8,157 8,754 8,157 8,806
Liability for unfunded commitments          
Balance at beginning of period 0 0 0 0 0
Provision for credit losses on unfunded lending commitments 0 0 0 0  
Balance at end of period 0 0 0 0 0
Allowance for credit losses on loans and liability for unfunded lending commitments 8,754 8,157 8,754 8,157  
Consumer | Other consumer loans          
Allowance for credit losses on loans          
Balance at beginning of period 12,860 23,293 13,631 25,215 25,215
Provision for credit losses on loans 489 (4,717) 1,385 (5,054)  
Loans charged off (2,516) (3,270) (4,848) (6,291) (10,986)
Recoveries on loans previously charged off 727 1,115 1,392 2,551  
Balance at end of period 11,560 16,421 11,560 16,421 13,631
Liability for unfunded commitments          
Balance at beginning of period 0 0 0 0 0
Provision for credit losses on unfunded lending commitments 0 0 0 0  
Balance at end of period 0 0 0 0 $ 0
Allowance for credit losses on loans and liability for unfunded lending commitments $ 11,560 $ 16,421 $ 11,560 $ 16,421