v3.26.1
LHFI and ACL, LHFI - Summary of Amortized Cost Basis of Loans by Credit Quality Indicator (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year $ 815,591 $ 3,500,031
Term Loans by Origination Year, Before Latest Fiscal Year 3,348,155 1,780,668
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 1,717,938 1,831,799
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 1,733,281 2,535,632
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 2,319,771 1,087,030
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 2,289,889 1,356,713
Financing Receivable, Revolving Loans 1,653,346 1,582,360
Total LHFI 13,877,971 13,674,233
Term Loans by Origination Year, Current Period Gross Charge-Offs, Current Fiscal Year (1,106) (4,847)
Term Loans by Origination Year, Current Period Gross Charge-Offs, Before Latest Fiscal Year (166) (1,270)
Term Loans by Origination Year, Current Period Gross Charge-Offs, Two Years Before Latest Fiscal Year (448) (2,075)
Term Loans by Origination Year, Current Period Gross Charge-Offs, Three Years Before Latest Fiscal Year (156) (5,581)
Term Loans by Origination Year, Current Period Gross Charge-Offs, Four Years Before Latest Fiscal Year (463) (720)
Term Loans by Origination Year, Current Period Gross Charge-Offs, Five or More Years Before Latest Fiscal Year (148) (8,596)
Financing Receivable, Revolving, Current Period Gross Charge-Offs (1,199) (3,659)
Total LHFI, Current Period Gross Charge-Offs (3,686) (26,748)
Past Due 90 Days or More [Member]    
Financing Receivable Recorded Investment [Line Items]    
Total LHFI 49,015 45,313
Commercial and Industrial Loans [Member]    
Financing Receivable Recorded Investment [Line Items]    
Total LHFI 2,166,425 1,999,464
Commercial and Industrial Loans [Member] | Past Due 90 Days or More [Member]    
Financing Receivable Recorded Investment [Line Items]    
Total LHFI 1,369 1,014
State and Other Political Subdivision Loans [Member]    
Financing Receivable Recorded Investment [Line Items]    
Total LHFI 1,059,624 1,061,584
State and Other Political Subdivision Loans [Member] | Past Due 90 Days or More [Member]    
Financing Receivable Recorded Investment [Line Items]    
Total LHFI 0 995
Other Commercial Loans and Leases [Member]    
Financing Receivable Recorded Investment [Line Items]    
Total LHFI 858,717 819,856
Other Commercial Loans and Leases [Member] | Past Due 90 Days or More [Member]    
Financing Receivable Recorded Investment [Line Items]    
Total LHFI 0 0
Consumer Loans [Member]    
Financing Receivable Recorded Investment [Line Items]    
Total LHFI 159,443 163,754
Consumer Loans [Member] | Past Due 90 Days or More [Member]    
Financing Receivable Recorded Investment [Line Items]    
Total LHFI 822 453
Loans Secured by Real Estate [Member] | Construction, Land Development and Other Land [Member]    
Financing Receivable Recorded Investment [Line Items]    
Total LHFI 560,143 549,353
Loans Secured by Real Estate [Member] | Other Secured by 1-4 Family Residential Properties [Member]    
Financing Receivable Recorded Investment [Line Items]    
Total LHFI 712,532 704,514
Loans Secured by Real Estate [Member] | Other Real Estate Secured [Member]    
Financing Receivable Recorded Investment [Line Items]    
Total LHFI 2,079,222 2,124,272
Loans Secured by Real Estate [Member] | Secured by Nonfarm, Nonresidential Properties [Member]    
Financing Receivable Recorded Investment [Line Items]    
Total LHFI 3,289,115 3,304,523
Loans Secured by Real Estate [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Past Due 90 Days or More [Member]    
Financing Receivable Recorded Investment [Line Items]    
Total LHFI 10,869 3,829
Other Loans Secured by Real Estate [Member] | Other Construction [Member]    
Financing Receivable Recorded Investment [Line Items]    
Total LHFI 645,555 595,238
Other Loans Secured by Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member]    
Financing Receivable Recorded Investment [Line Items]    
Total LHFI 2,347,195 2,351,675
Commercial LHFI [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 715,292 3,064,059
Term Loans by Origination Year, Before Latest Fiscal Year 2,935,903 1,496,528
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 1,451,679 1,586,858
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 1,500,958 1,765,621
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 1,566,794 650,020
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 1,472,754 938,586
Financing Receivable, Revolving Loans 1,093,457 1,031,819
Total LHFI 10,736,837 10,533,491
Term Loans by Origination Year, Current Period Gross Charge-Offs, Before Latest Fiscal Year (48) (766)
Term Loans by Origination Year, Current Period Gross Charge-Offs, Two Years Before Latest Fiscal Year (329) (982)
Term Loans by Origination Year, Current Period Gross Charge-Offs, Three Years Before Latest Fiscal Year (63) (4,135)
Term Loans by Origination Year, Current Period Gross Charge-Offs, Four Years Before Latest Fiscal Year (252) (554)
Term Loans by Origination Year, Current Period Gross Charge-Offs, Five or More Years Before Latest Fiscal Year (93) (8,465)
Financing Receivable, Revolving, Current Period Gross Charge-Offs (141) (486)
Total LHFI, Current Period Gross Charge-Offs (926) (15,388)
Commercial LHFI [Member] | Commercial and Industrial Loans [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 165,708 810,075
Term Loans by Origination Year, Before Latest Fiscal Year 767,800 304,798
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 293,745 187,222
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 170,340 91,758
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 81,708 40,036
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 51,693 20,763
Financing Receivable, Revolving Loans 635,431 544,812
Total LHFI 2,166,425 1,999,464
Term Loans by Origination Year, Current Period Gross Charge-Offs, Before Latest Fiscal Year (48) (708)
Term Loans by Origination Year, Current Period Gross Charge-Offs, Two Years Before Latest Fiscal Year (314) (982)
Term Loans by Origination Year, Current Period Gross Charge-Offs, Three Years Before Latest Fiscal Year (63) (4,016)
Term Loans by Origination Year, Current Period Gross Charge-Offs, Four Years Before Latest Fiscal Year (252) (432)
Term Loans by Origination Year, Current Period Gross Charge-Offs, Five or More Years Before Latest Fiscal Year (93) (6,389)
Financing Receivable, Revolving, Current Period Gross Charge-Offs (141) (486)
Total LHFI, Current Period Gross Charge-Offs (911) (13,013)
Commercial LHFI [Member] | Commercial and Industrial Loans [Member] | Pass - RR 1 through RR 6 [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 164,855 803,487
Term Loans by Origination Year, Before Latest Fiscal Year 762,735 303,777
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 281,109 172,506
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 156,338 88,388
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 79,586 39,304
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 50,939 20,251
Financing Receivable, Revolving Loans 616,947 523,797
Total LHFI 2,112,509 1,951,510
Commercial LHFI [Member] | Commercial and Industrial Loans [Member] | Special Mention - RR 7 [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 9 4,522
Term Loans by Origination Year, Before Latest Fiscal Year 597 602
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 12,359 14,230
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 2,772 119
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 93 49
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 8 77
Financing Receivable, Revolving Loans 3,471 15,816
Total LHFI 19,309 35,415
Commercial LHFI [Member] | Commercial and Industrial Loans [Member] | Substandard - RR 8 [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 834 2,059
Term Loans by Origination Year, Before Latest Fiscal Year 4,461 377
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 237 470
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 11,230 3,245
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 2,025 683
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 745 434
Financing Receivable, Revolving Loans 14,997 5,173
Total LHFI 34,529 12,441
Commercial LHFI [Member] | Commercial and Industrial Loans [Member] | Doubtful - RR 9 [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 10 7
Term Loans by Origination Year, Before Latest Fiscal Year 7 42
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 40 16
Term Loans by Origination Year, Three Years Before Latest Fiscal Year   6
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 4  
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 1 1
Financing Receivable, Revolving Loans 16 26
Total LHFI 78 98
Commercial LHFI [Member] | State and Other Political Subdivision Loans [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 24,086 300,564
Term Loans by Origination Year, Before Latest Fiscal Year 318,512 109,516
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 104,392 64,228
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 62,750 180,530
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 167,677 97,517
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 365,838 286,979
Financing Receivable, Revolving Loans 16,369 22,250
Total LHFI 1,059,624 1,061,584
Commercial LHFI [Member] | State and Other Political Subdivision Loans [Member] | Pass - RR 1 through RR 6 [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 24,086 300,564
Term Loans by Origination Year, Before Latest Fiscal Year 318,512 109,516
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 104,392 64,228
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 62,750 180,530
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 167,677 97,517
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 365,838 286,979
Financing Receivable, Revolving Loans 16,369 22,250
Total LHFI 1,059,624 1,061,584
Commercial LHFI [Member] | Other Commercial Loans and Leases [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 71,111 311,356
Term Loans by Origination Year, Before Latest Fiscal Year 300,645 127,232
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 117,434 116,140
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 110,787 4,725
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 3,968 4,814
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 51,652 55,975
Financing Receivable, Revolving Loans 203,120 199,614
Total LHFI 858,717 819,856
Term Loans by Origination Year, Current Period Gross Charge-Offs, Before Latest Fiscal Year   (54)
Term Loans by Origination Year, Current Period Gross Charge-Offs, Two Years Before Latest Fiscal Year (15)  
Term Loans by Origination Year, Current Period Gross Charge-Offs, Three Years Before Latest Fiscal Year   (116)
Term Loans by Origination Year, Current Period Gross Charge-Offs, Five or More Years Before Latest Fiscal Year   (50)
Total LHFI, Current Period Gross Charge-Offs (15) (220)
Commercial LHFI [Member] | Other Commercial Loans and Leases [Member] | Pass - RR 1 through RR 6 [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 71,111 311,342
Term Loans by Origination Year, Before Latest Fiscal Year 300,634 125,090
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 113,543 113,861
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 108,502 4,356
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 3,612 4,352
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 51,491 55,946
Financing Receivable, Revolving Loans 202,032 198,576
Total LHFI 850,925 813,523
Commercial LHFI [Member] | Other Commercial Loans and Leases [Member] | Special Mention - RR 7 [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Before Latest Fiscal Year   414
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 2,254 362
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 53  
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 19  
Financing Receivable, Revolving Loans 57  
Total LHFI 2,383 776
Commercial LHFI [Member] | Other Commercial Loans and Leases [Member] | Substandard - RR 8 [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year   14
Term Loans by Origination Year, Before Latest Fiscal Year 11 1,725
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 1,635 1,917
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 2,232 369
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 337 462
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 161 29
Financing Receivable, Revolving Loans 1,031 1,038
Total LHFI 5,407 5,554
Commercial LHFI [Member] | Other Commercial Loans and Leases [Member] | Doubtful - RR 9 [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Before Latest Fiscal Year   3
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 2  
Total LHFI 2 3
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Construction, Land Development and Other Land [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 89,472 329,731
Term Loans by Origination Year, Before Latest Fiscal Year 275,875 72,357
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 56,716 16,432
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 14,437 17,799
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 12,182 7,695
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 6,201 1,664
Financing Receivable, Revolving Loans 45,009 47,981
Total LHFI 499,892 493,659
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Construction, Land Development and Other Land [Member] | Pass - RR 1 through RR 6 [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 89,388 326,423
Term Loans by Origination Year, Before Latest Fiscal Year 272,571 70,948
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 55,371 16,432
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 14,437 17,197
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 11,982 7,610
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 6,192 1,664
Financing Receivable, Revolving Loans 45,009 47,981
Total LHFI 494,950 488,255
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Construction, Land Development and Other Land [Member] | Special Mention - RR 7 [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 26  
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 9  
Total LHFI 35  
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Construction, Land Development and Other Land [Member] | Substandard - RR 8 [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 58 3,308
Term Loans by Origination Year, Before Latest Fiscal Year 3,304 1,409
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 1,345  
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 0 602
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 200 85
Financing Receivable, Revolving Loans 0  
Total LHFI 4,907 5,404
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Other Secured by 1-4 Family Residential Properties [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 12,673 43,228
Term Loans by Origination Year, Before Latest Fiscal Year 40,528 22,917
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 21,560 18,672
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 16,934 19,844
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 17,962 19,879
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 20,380 3,590
Financing Receivable, Revolving Loans 8,881 7,513
Total LHFI 138,918 135,643
Term Loans by Origination Year, Current Period Gross Charge-Offs, Three Years Before Latest Fiscal Year   (3)
Term Loans by Origination Year, Current Period Gross Charge-Offs, Four Years Before Latest Fiscal Year   (122)
Total LHFI, Current Period Gross Charge-Offs   (125)
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Other Secured by 1-4 Family Residential Properties [Member] | Pass - RR 1 through RR 6 [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 12,660 42,929
Term Loans by Origination Year, Before Latest Fiscal Year 40,313 22,620
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 21,499 18,353
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 16,728 18,748
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 16,581 19,248
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 19,719 3,294
Financing Receivable, Revolving Loans 8,866 7,497
Total LHFI 136,366 132,689
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Other Secured by 1-4 Family Residential Properties [Member] | Special Mention - RR 7 [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Before Latest Fiscal Year 0 25
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 61  
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 90 349
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 250 85
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 79  
Total LHFI 480 459
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Other Secured by 1-4 Family Residential Properties [Member] | Substandard - RR 8 [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 13 299
Term Loans by Origination Year, Before Latest Fiscal Year 215 272
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 0 319
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 116 747
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 1,131 546
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 582 296
Financing Receivable, Revolving Loans 15 16
Total LHFI 2,072 2,495
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Other Real Estate Secured [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 50,404 290,854
Term Loans by Origination Year, Before Latest Fiscal Year 232,065 139,454
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 163,880 635,514
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 683,758 773,644
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 679,717 115,726
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 224,679 107,078
Financing Receivable, Revolving Loans 44,088 61,354
Total LHFI 2,078,591 2,123,624
Term Loans by Origination Year, Current Period Gross Charge-Offs, Before Latest Fiscal Year   (4)
Total LHFI, Current Period Gross Charge-Offs   (4)
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Other Real Estate Secured [Member] | Pass - RR 1 through RR 6 [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 50,404 290,854
Term Loans by Origination Year, Before Latest Fiscal Year 231,983 139,454
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 163,880 613,122
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 661,389 678,691
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 584,764 115,394
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 197,516 80,235
Financing Receivable, Revolving Loans 43,836 61,191
Total LHFI 1,933,772 1,978,941
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Other Real Estate Secured [Member] | Special Mention - RR 7 [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 0 25,376
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 25,376  
Total LHFI 25,376 25,376
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Other Real Estate Secured [Member] | Substandard - RR 8 [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Before Latest Fiscal Year 82  
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 0 22,392
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 22,369 69,577
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 69,577 332
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 27,163 26,843
Financing Receivable, Revolving Loans 252 163
Total LHFI 119,443 119,307
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Secured by Nonfarm, Nonresidential Properties [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 257,094 856,014
Term Loans by Origination Year, Before Latest Fiscal Year 846,277 445,108
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 403,037 374,898
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 314,371 654,037
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 579,806 364,353
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 752,311 462,537
Financing Receivable, Revolving Loans 136,219 147,476
Total LHFI 3,289,115 3,304,423
Term Loans by Origination Year, Current Period Gross Charge-Offs, Five or More Years Before Latest Fiscal Year   (2,026)
Total LHFI, Current Period Gross Charge-Offs   (2,026)
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Pass - RR 1 through RR 6 [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 235,882 817,790
Term Loans by Origination Year, Before Latest Fiscal Year 809,331 434,506
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 384,959 348,386
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 306,149 614,738
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 542,954 334,813
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 689,423 427,591
Financing Receivable, Revolving Loans 134,242 145,497
Total LHFI 3,102,940 3,123,321
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Special Mention - RR 7 [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 21,116  
Term Loans by Origination Year, Before Latest Fiscal Year   1,298
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 8,803 23,975
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 5,726 284
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 56  
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 223 1,124
Total LHFI 35,924 26,681
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Substandard - RR 8 [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 96 38,224
Term Loans by Origination Year, Before Latest Fiscal Year 36,946 9,304
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 9,275 2,537
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 2,496 39,015
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 36,796 29,540
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 62,665 33,821
Financing Receivable, Revolving Loans 1,977 1,979
Total LHFI 150,251 154,420
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Doubtful - RR 9 [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year   1
Total LHFI   1
Commercial LHFI [Member] | Other Loans Secured by Real Estate [Member] | Other Construction [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 44,744 122,237
Term Loans by Origination Year, Before Latest Fiscal Year 154,201 275,146
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 290,915 173,752
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 127,581 23,284
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 23,774  
Financing Receivable, Revolving Loans 4,340 819
Total LHFI 645,555 595,238
Commercial LHFI [Member] | Other Loans Secured by Real Estate [Member] | Other Construction [Member] | Pass - RR 1 through RR 6 [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 44,744 122,237
Term Loans by Origination Year, Before Latest Fiscal Year 154,201 275,146
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 290,915 173,752
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 127,581 23,284
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 23,774  
Financing Receivable, Revolving Loans 4,340 819
Total LHFI 645,555 595,238
Consumer LHFI [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 100,299 435,972
Term Loans by Origination Year, Before Latest Fiscal Year 412,252 284,140
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 266,259 244,941
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 232,323 770,011
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 752,977 437,010
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 817,135 418,127
Financing Receivable, Revolving Loans 559,889 550,541
Total LHFI 3,141,134 3,140,742
Term Loans by Origination Year, Current Period Gross Charge-Offs, Current Fiscal Year (1,106) (4,847)
Term Loans by Origination Year, Current Period Gross Charge-Offs, Before Latest Fiscal Year (118) (504)
Term Loans by Origination Year, Current Period Gross Charge-Offs, Two Years Before Latest Fiscal Year (119) (1,093)
Term Loans by Origination Year, Current Period Gross Charge-Offs, Three Years Before Latest Fiscal Year (93) (1,446)
Term Loans by Origination Year, Current Period Gross Charge-Offs, Four Years Before Latest Fiscal Year (211) (166)
Term Loans by Origination Year, Current Period Gross Charge-Offs, Five or More Years Before Latest Fiscal Year (55) (131)
Financing Receivable, Revolving, Current Period Gross Charge-Offs (1,058) (3,173)
Total LHFI, Current Period Gross Charge-Offs (2,760) (11,360)
Consumer LHFI [Member] | Consumer Loans [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 16,433 55,701
Term Loans by Origination Year, Before Latest Fiscal Year 40,858 27,876
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 25,180 8,213
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 6,352 7,655
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 6,924 6,928
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 6,881 241
Financing Receivable, Revolving Loans 56,815 57,140
Total LHFI 159,443 163,754
Term Loans by Origination Year, Current Period Gross Charge-Offs, Current Fiscal Year (1,106) (4,847)
Term Loans by Origination Year, Current Period Gross Charge-Offs, Before Latest Fiscal Year (118) (494)
Term Loans by Origination Year, Current Period Gross Charge-Offs, Two Years Before Latest Fiscal Year (114) (474)
Term Loans by Origination Year, Current Period Gross Charge-Offs, Three Years Before Latest Fiscal Year (29) (114)
Term Loans by Origination Year, Current Period Gross Charge-Offs, Four Years Before Latest Fiscal Year   (24)
Term Loans by Origination Year, Current Period Gross Charge-Offs, Five or More Years Before Latest Fiscal Year   (26)
Financing Receivable, Revolving, Current Period Gross Charge-Offs (469) (2,459)
Total LHFI, Current Period Gross Charge-Offs (1,836) (8,438)
Consumer LHFI [Member] | Consumer Loans [Member] | Current [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 16,032 54,959
Term Loans by Origination Year, Before Latest Fiscal Year 40,303 27,573
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 24,972 7,898
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 6,094 7,587
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 6,859 6,892
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 6,853 239
Financing Receivable, Revolving Loans 55,145 55,321
Total LHFI 156,258 160,469
Consumer LHFI [Member] | Consumer Loans [Member] | Past Due 30-89 Days [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 385 597
Term Loans by Origination Year, Before Latest Fiscal Year 357 228
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 141 143
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 119 31
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 35 13
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 11  
Financing Receivable, Revolving Loans 938 1,440
Total LHFI 1,986 2,452
Consumer LHFI [Member] | Consumer Loans [Member] | Past Due 90 Days or More [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 16 28
Term Loans by Origination Year, Before Latest Fiscal Year 57 32
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 1 17
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 3 1
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 2  
Financing Receivable, Revolving Loans 729 370
Total LHFI 808 448
Consumer LHFI [Member] | Consumer Loans [Member] | Nonaccrual [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year   117
Term Loans by Origination Year, Before Latest Fiscal Year 141 43
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 66 155
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 136 36
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 28 23
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 17 2
Financing Receivable, Revolving Loans 3 9
Total LHFI 391 385
Consumer LHFI [Member] | Loans Secured by Real Estate [Member] | Construction, Land Development and Other Land [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 2,677 30,069
Term Loans by Origination Year, Before Latest Fiscal Year 36,742 9,713
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 8,720 10,521
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 7,598 2,500
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 2,045 1,252
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 2,469 1,639
Total LHFI 60,251 55,694
Consumer LHFI [Member] | Loans Secured by Real Estate [Member] | Construction, Land Development and Other Land [Member] | Current [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 2,677 30,069
Term Loans by Origination Year, Before Latest Fiscal Year 36,742 9,491
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 8,720 10,191
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 7,378 2,500
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 2,045 1,198
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 2,415 1,638
Total LHFI 59,977 55,087
Consumer LHFI [Member] | Loans Secured by Real Estate [Member] | Construction, Land Development and Other Land [Member] | Past Due 30-89 Days [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Before Latest Fiscal Year   222
Term Loans by Origination Year, Two Years Before Latest Fiscal Year   321
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 170  
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year   1
Total LHFI 170 544
Consumer LHFI [Member] | Loans Secured by Real Estate [Member] | Construction, Land Development and Other Land [Member] | Nonaccrual [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Two Years Before Latest Fiscal Year   9
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 50  
Term Loans by Origination Year, Four Years Before Latest Fiscal Year   54
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 54  
Total LHFI 104 63
Consumer LHFI [Member] | Loans Secured by Real Estate [Member] | Other Secured by 1-4 Family Residential Properties [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 7,128 23,132
Term Loans by Origination Year, Before Latest Fiscal Year 15,161 18,333
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 15,863 14,711
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 14,381 5,437
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 5,088 4,500
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 12,919 9,357
Financing Receivable, Revolving Loans 503,074 493,401
Total LHFI 573,614 568,871
Term Loans by Origination Year, Current Period Gross Charge-Offs, Before Latest Fiscal Year   (10)
Term Loans by Origination Year, Current Period Gross Charge-Offs, Three Years Before Latest Fiscal Year   (56)
Term Loans by Origination Year, Current Period Gross Charge-Offs, Five or More Years Before Latest Fiscal Year (17) (31)
Financing Receivable, Revolving, Current Period Gross Charge-Offs (589) (714)
Total LHFI, Current Period Gross Charge-Offs (606) (811)
Consumer LHFI [Member] | Loans Secured by Real Estate [Member] | Other Secured by 1-4 Family Residential Properties [Member] | Current [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 7,128 22,785
Term Loans by Origination Year, Before Latest Fiscal Year 15,155 18,105
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 15,710 13,944
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 13,529 5,352
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 5,020 4,352
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 12,132 8,656
Financing Receivable, Revolving Loans 491,104 481,812
Total LHFI 559,778 555,006
Consumer LHFI [Member] | Loans Secured by Real Estate [Member] | Other Secured by 1-4 Family Residential Properties [Member] | Past Due 30-89 Days [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year   321
Term Loans by Origination Year, Before Latest Fiscal Year   189
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 115 643
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 719 36
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 20 1
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 343 509
Financing Receivable, Revolving Loans 4,272 3,632
Total LHFI 5,469 5,331
Consumer LHFI [Member] | Loans Secured by Real Estate [Member] | Other Secured by 1-4 Family Residential Properties [Member] | Past Due 90 Days or More [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 29  
Term Loans by Origination Year, Four Years Before Latest Fiscal Year   2
Financing Receivable, Revolving Loans 503 518
Total LHFI 532 520
Consumer LHFI [Member] | Loans Secured by Real Estate [Member] | Other Secured by 1-4 Family Residential Properties [Member] | Nonaccrual [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year   26
Term Loans by Origination Year, Before Latest Fiscal Year 6 39
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 38 124
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 104 49
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 48 145
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 444 192
Financing Receivable, Revolving Loans 7,195 7,439
Total LHFI 7,835 8,014
Consumer LHFI [Member] | Loans Secured by Real Estate [Member] | Other Real Estate Secured [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year   466
Term Loans by Origination Year, Before Latest Fiscal Year 457 141
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 138  
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 36 41
Total LHFI 631 648
Consumer LHFI [Member] | Loans Secured by Real Estate [Member] | Other Real Estate Secured [Member] | Current [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year   466
Term Loans by Origination Year, Before Latest Fiscal Year 457 141
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 138  
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 36 41
Total LHFI 631 648
Consumer LHFI [Member] | Loans Secured by Real Estate [Member] | Secured by Nonfarm, Nonresidential Properties [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year   100
Total LHFI   100
Consumer LHFI [Member] | Loans Secured by Real Estate [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Current [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year   100
Total LHFI   100
Consumer LHFI [Member] | Other Loans Secured by Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 74,061 326,504
Term Loans by Origination Year, Before Latest Fiscal Year 319,034 228,077
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 216,358 211,496
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 203,992 754,419
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 738,920 424,330
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 794,830 406,849
Total LHFI 2,347,195 2,351,675
Term Loans by Origination Year, Current Period Gross Charge-Offs, Two Years Before Latest Fiscal Year (5) (619)
Term Loans by Origination Year, Current Period Gross Charge-Offs, Three Years Before Latest Fiscal Year (64) (1,276)
Term Loans by Origination Year, Current Period Gross Charge-Offs, Four Years Before Latest Fiscal Year (211) (142)
Term Loans by Origination Year, Current Period Gross Charge-Offs, Five or More Years Before Latest Fiscal Year (38) (74)
Total LHFI, Current Period Gross Charge-Offs (318) (2,111)
Consumer LHFI [Member] | Other Loans Secured by Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | Current [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year 74,061 325,999
Term Loans by Origination Year, Before Latest Fiscal Year 317,745 227,009
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 215,577 193,722
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 187,293 712,091
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 698,793 408,534
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 768,446 395,901
Total LHFI 2,261,915 2,263,256
Consumer LHFI [Member] | Other Loans Secured by Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | Past Due 30-89 Days [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Before Latest Fiscal Year 790 167
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 3 3,670
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 1,916 9,108
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 4,848 4,949
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 6,762 3,100
Total LHFI 14,319 20,994
Consumer LHFI [Member] | Other Loans Secured by Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | Past Due 90 Days or More [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Two Years Before Latest Fiscal Year   866
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 1,136 1,598
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 898 134
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 371 534
Total LHFI 2,405 3,132
Consumer LHFI [Member] | Other Loans Secured by Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | Nonaccrual [Member]    
Financing Receivable Recorded Investment [Line Items]    
Term Loans by Origination Year, Current Fiscal Year   505
Term Loans by Origination Year, Before Latest Fiscal Year 499 901
Term Loans by Origination Year, Two Years Before Latest Fiscal Year 778 13,238
Term Loans by Origination Year, Three Years Before Latest Fiscal Year 13,647 31,622
Term Loans by Origination Year, Four Years Before Latest Fiscal Year 34,381 10,713
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year 19,251 7,314
Total LHFI $ 68,556 $ 64,293