Loans and Allowance for Credit Losses - Recorded Investment and Unpaid Principal Balance for Impaired Loans with Associated Allowance (Detail) - USD ($)
$ in Thousands |
3 Months Ended |
|
Mar. 31, 2026 |
Mar. 31, 2025 |
Dec. 31, 2025 |
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
$ 91,164
|
|
$ 91,756
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
118,398
|
|
118,901
|
| Financing Receivable, Nonaccrual Related Allowance |
13,984
|
|
9,836
|
| Nonperforming Financing Receivable, Average Recorded Investment |
90,546
|
$ 57,849
|
|
| Nonperforming Financing Receivable, Interest Income, Cash Basis Method |
47
|
387
|
|
| With No Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
51,308
|
|
53,656
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
76,419
|
|
70,621
|
| Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment |
64,248
|
37,775
|
|
| Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method |
47
|
387
|
|
| With a Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
39,856
|
|
38,100
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
41,979
|
|
48,280
|
| Financing Receivable, Nonaccrual Related Allowance |
13,984
|
|
9,836
|
| Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment |
26,298
|
20,074
|
|
| Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method |
0
|
0
|
|
| Commercial, financial, agricultural and other [Member] | With No Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
23,870
|
|
22,422
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
41,559
|
|
31,583
|
| Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment |
29,643
|
8,684
|
|
| Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method |
12
|
78
|
|
| Commercial, financial, agricultural and other [Member] | With a Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
21,290
|
|
24,196
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
23,057
|
|
34,249
|
| Financing Receivable, Nonaccrual Related Allowance |
11,229
|
|
6,959
|
| Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment |
15,685
|
7,190
|
|
| Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method |
0
|
0
|
|
| Construction | With No Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
0
|
|
1,475
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
0
|
|
1,475
|
| Construction | With a Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
0
|
|
0
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
0
|
|
0
|
| Financing Receivable, Nonaccrual Related Allowance |
0
|
|
0
|
| Residential real estate [Member] | With No Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
10,745
|
|
11,874
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
12,219
|
|
13,678
|
| Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment |
11,025
|
10,122
|
|
| Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method |
27
|
19
|
|
| Residential real estate [Member] | With a Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
2,486
|
|
1,145
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
2,782
|
|
1,160
|
| Financing Receivable, Nonaccrual Related Allowance |
209
|
|
162
|
| Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment |
2,332
|
2,354
|
|
| Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method |
0
|
0
|
|
| Commercial Real Estate [Member] | With No Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
16,684
|
|
17,853
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
22,609
|
|
23,807
|
| Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment |
22,570
|
16,849
|
|
| Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method |
8
|
184
|
|
| Commercial Real Estate [Member] | With a Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
16,080
|
|
12,759
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
16,140
|
|
12,871
|
| Financing Receivable, Nonaccrual Related Allowance |
2,546
|
|
2,715
|
| Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment |
8,281
|
10,530
|
|
| Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method |
0
|
0
|
|
| Loans to individuals [Member] | With No Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
9
|
|
32
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
32
|
|
78
|
| Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment |
27
|
269
|
|
| Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method |
0
|
0
|
|
| Loans to individuals [Member] | With a Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
0
|
|
0
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
0
|
|
0
|
| Financing Receivable, Nonaccrual Related Allowance |
0
|
|
0
|
| Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment |
0
|
0
|
|
| Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method |
0
|
0
|
|
| Real estate construction [Member] | With No Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment |
983
|
1,851
|
|
| Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method |
0
|
106
|
|
| Real estate construction [Member] | With a Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment |
0
|
0
|
|
| Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method |
0
|
0
|
|
| Time and Demand Loans | Commercial, financial, agricultural and other [Member] | With No Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
21,900
|
|
21,092
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
39,589
|
|
30,253
|
| Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment |
27,755
|
7,932
|
|
| Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method |
12
|
78
|
|
| Time and Demand Loans | Commercial, financial, agricultural and other [Member] | With a Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
21,290
|
|
24,196
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
23,057
|
|
34,249
|
| Financing Receivable, Nonaccrual Related Allowance |
11,229
|
|
6,959
|
| Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment |
15,685
|
7,103
|
|
| Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method |
0
|
0
|
|
| Senior Lien | Residential real estate [Member] | With No Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
7,190
|
|
7,219
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
8,055
|
|
8,148
|
| Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment |
7,504
|
7,245
|
|
| Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method |
27
|
19
|
|
| Senior Lien | Residential real estate [Member] | With a Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
1,340
|
|
1,145
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
1,358
|
|
1,160
|
| Financing Receivable, Nonaccrual Related Allowance |
203
|
|
162
|
| Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment |
1,186
|
756
|
|
| Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method |
0
|
0
|
|
| Junior Lien | Residential real estate [Member] | With No Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
3,555
|
|
4,655
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
4,164
|
|
5,530
|
| Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment |
3,521
|
2,877
|
|
| Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method |
0
|
0
|
|
| Junior Lien | Residential real estate [Member] | With a Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
1,146
|
|
0
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
1,424
|
|
0
|
| Financing Receivable, Nonaccrual Related Allowance |
6
|
|
0
|
| Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment |
1,146
|
1,598
|
|
| Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method |
0
|
0
|
|
| Multifamily | Commercial Real Estate [Member] | With No Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
10
|
|
10
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
12
|
|
12
|
| Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment |
10
|
20
|
|
| Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method |
0
|
0
|
|
| Multifamily | Commercial Real Estate [Member] | With a Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
11,699
|
|
0
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
11,700
|
|
0
|
| Financing Receivable, Nonaccrual Related Allowance |
2,160
|
|
0
|
| Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment |
3,900
|
0
|
|
| Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method |
0
|
0
|
|
| Nonowner Occupied Commercial Real Estate | Commercial Real Estate [Member] | With No Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
9,288
|
|
8,799
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
13,401
|
|
12,879
|
| Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment |
12,266
|
13,887
|
|
| Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method |
0
|
184
|
|
| Nonowner Occupied Commercial Real Estate | Commercial Real Estate [Member] | With a Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
0
|
|
5,357
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
0
|
|
5,357
|
| Financing Receivable, Nonaccrual Related Allowance |
0
|
|
2,280
|
| Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment |
0
|
4,274
|
|
| Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method |
0
|
0
|
|
| Owner Occupied Commercial Real Estate | Commercial Real Estate [Member] | With No Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
7,386
|
|
9,044
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
9,196
|
|
10,916
|
| Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment |
10,294
|
2,942
|
|
| Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method |
8
|
0
|
|
| Owner Occupied Commercial Real Estate | Commercial Real Estate [Member] | With a Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
4,381
|
|
7,402
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
4,440
|
|
7,514
|
| Financing Receivable, Nonaccrual Related Allowance |
386
|
|
435
|
| Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment |
4,381
|
6,256
|
|
| Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method |
0
|
0
|
|
| Automobiles | Loans to individuals [Member] | With No Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
7
|
|
30
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
16
|
|
62
|
| Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment |
16
|
198
|
|
| Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method |
0
|
0
|
|
| Automobiles | Loans to individuals [Member] | With a Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
0
|
|
0
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
0
|
|
0
|
| Financing Receivable, Nonaccrual Related Allowance |
0
|
|
0
|
| Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment |
0
|
0
|
|
| Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method |
0
|
0
|
|
| Other Consumer Loans | Loans to individuals [Member] | With No Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
2
|
|
2
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
16
|
|
16
|
| Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment |
11
|
71
|
|
| Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method |
0
|
0
|
|
| Other Consumer Loans | Loans to individuals [Member] | With a Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
0
|
|
0
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
0
|
|
0
|
| Financing Receivable, Nonaccrual Related Allowance |
0
|
|
0
|
| Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment |
0
|
0
|
|
| Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method |
0
|
0
|
|
| Construction Residential | Construction | With No Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
0
|
|
0
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
0
|
|
0
|
| Construction Residential | Construction | With a Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
0
|
|
0
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
0
|
|
0
|
| Financing Receivable, Nonaccrual Related Allowance |
0
|
|
0
|
| Construction Residential | Real estate construction [Member] | With No Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment |
0
|
0
|
|
| Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method |
0
|
0
|
|
| Construction Residential | Real estate construction [Member] | With a Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment |
0
|
0
|
|
| Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method |
0
|
0
|
|
| Construction Other | Construction | With No Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
0
|
|
1,475
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
0
|
|
1,475
|
| Construction Other | Construction | With a Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
0
|
|
0
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
0
|
|
0
|
| Financing Receivable, Nonaccrual Related Allowance |
0
|
|
0
|
| Construction Other | Real estate construction [Member] | With No Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment |
983
|
1,851
|
|
| Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method |
0
|
106
|
|
| Construction Other | Real estate construction [Member] | With a Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment |
0
|
0
|
|
| Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method |
0
|
0
|
|
| Time and Demand Loans Other | Commercial, financial, agricultural and other [Member] | With No Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
0
|
|
0
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
0
|
|
0
|
| Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment |
0
|
0
|
|
| Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method |
0
|
0
|
|
| Time and Demand Loans Other | Commercial, financial, agricultural and other [Member] | With a Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
0
|
|
0
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
0
|
|
0
|
| Financing Receivable, Nonaccrual Related Allowance |
0
|
|
0
|
| Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment |
0
|
0
|
|
| Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method |
0
|
0
|
|
| Equipment Finance | Commercial, financial, agricultural and other [Member] | With No Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
1,970
|
|
1,330
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
1,970
|
|
1,330
|
| Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment |
1,888
|
752
|
|
| Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method |
0
|
0
|
|
| Equipment Finance | Commercial, financial, agricultural and other [Member] | With a Related Allowance |
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
| Unpaid principal balance |
0
|
|
0
|
| Financing Receivable, Nonaccrual Unpaid Principal Balance |
0
|
|
0
|
| Financing Receivable, Nonaccrual Related Allowance |
0
|
|
$ 0
|
| Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment |
0
|
87
|
|
| Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method |
$ 0
|
$ 0
|
|