Loans and Lease Finance Receivables and Allowance for Credit Losses - Summary of loans by type and origination year, according to our internal risk ratings (Detail) - USD ($)
$ in Thousands |
6 Months Ended |
12 Months Ended |
Jun. 30, 2026 |
Dec. 31, 2025 |
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
$ 932,138
|
$ 842,237
|
| 2025 |
1,250,860
|
452,814
|
| 2024 |
633,997
|
509,582
|
| 2023 |
757,613
|
1,394,854
|
| 2022 |
1,649,955
|
1,162,486
|
| Prior |
5,209,395
|
3,158,717
|
| Revolving loans amortized cost basis |
1,503,765
|
1,114,278
|
| Revolving loans converted to term loans |
79,332
|
64,225
|
| Total |
12,017,055
|
8,699,193
|
| Gross charge-off prior |
26
|
|
| Financing Receivable Accrued Interest Year Three Originated Two Years Before Current Fiscal Year Writeoff |
102
|
392
|
| Financing Receivable Accrued Interest Year Four Originated Three Years Before Current Fiscal Year Write off |
115
|
|
| Financing Receivable Accrued Interest Originated More than Four Years before Current Fiscal Year Writeoff |
21
|
|
| Financing Receivable Accrued Interest Originated More than Five Years before Current Fiscal Year Writeoff |
|
118
|
| Gross Charge Offs Revolving Loans Amortized Term Loans |
|
5
|
| Gross charge-offs Revolving loans converted to term loans |
|
127
|
| Gross charge-off total |
264
|
642
|
| Commercial Real Estate Loans [Member] |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
643,906
|
600,697
|
| 2025 |
882,145
|
317,051
|
| 2024 |
438,964
|
390,409
|
| 2023 |
628,047
|
1,197,153
|
| 2022 |
1,443,009
|
1,002,050
|
| Prior |
4,568,850
|
2,762,851
|
| Revolving loans amortized cost basis |
332,005
|
260,676
|
| Revolving loans converted to term loans |
47,008
|
43,508
|
| Total |
8,983,934
|
6,574,395
|
| Financing Receivable Accrued Interest Originated More than Five Years before Current Fiscal Year Writeoff |
|
118
|
| Construction Loans [Member] |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
34,672
|
15,742
|
| 2025 |
115,388
|
11,829
|
| 2024 |
41,288
|
0
|
| 2023 |
6,547
|
10,241
|
| 2022 |
11,413
|
0
|
| Prior |
685
|
0
|
| Revolving loans amortized cost basis |
0
|
0
|
| Revolving loans converted to term loans |
0
|
0
|
| Total |
209,993
|
37,812
|
| SBA Loans [Member] |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
42,002
|
48,707
|
| 2025 |
74,306
|
25,775
|
| 2024 |
43,211
|
12,077
|
| 2023 |
21,012
|
46,087
|
| 2022 |
59,279
|
45,070
|
| Prior |
198,149
|
104,685
|
| Revolving loans amortized cost basis |
2,563
|
0
|
| Revolving loans converted to term loans |
1,050
|
0
|
| Total |
441,572
|
282,401
|
| Gross charge-off prior |
26
|
|
| Gross charge-off total |
26
|
|
| Commercial and Industrial [Member] |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
179,522
|
136,920
|
| 2025 |
136,595
|
73,931
|
| 2024 |
85,558
|
88,538
|
| 2023 |
81,911
|
78,402
|
| 2022 |
72,152
|
52,086
|
| Prior |
203,777
|
146,610
|
| Revolving loans amortized cost basis |
692,769
|
380,619
|
| Revolving loans converted to term loans |
26,600
|
16,525
|
| Total |
1,478,884
|
973,631
|
| Financing Receivable Accrued Interest Year Three Originated Two Years Before Current Fiscal Year Writeoff |
102
|
392
|
| Financing Receivable Accrued Interest Year Four Originated Three Years Before Current Fiscal Year Write off |
115
|
|
| Financing Receivable Accrued Interest Originated More than Four Years before Current Fiscal Year Writeoff |
21
|
|
| Gross charge-offs Revolving loans converted to term loans |
|
127
|
| Gross charge-off total |
238
|
519
|
| Dairy and Livestock and Agribusiness [Member] |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
138
|
3
|
| 2025 |
18
|
587
|
| 2024 |
527
|
0
|
| 2023 |
0
|
0
|
| 2022 |
0
|
507
|
| Prior |
1,106
|
692
|
| Revolving loans amortized cost basis |
279,186
|
429,732
|
| Revolving loans converted to term loans |
19
|
56
|
| Total |
280,994
|
431,577
|
| Municipal Lease Finance Receivables [Member] |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
72
|
570
|
| 2025 |
539
|
2,699
|
| 2024 |
2,619
|
0
|
| 2023 |
0
|
4,479
|
| 2022 |
4,108
|
23,701
|
| Prior |
48,748
|
28,093
|
| Revolving loans amortized cost basis |
0
|
0
|
| Revolving loans converted to term loans |
0
|
0
|
| Total |
56,086
|
59,542
|
| SFR Mortgage [Member] |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
26,044
|
36,561
|
| 2025 |
35,241
|
16,445
|
| 2024 |
17,467
|
16,766
|
| 2023 |
18,901
|
57,988
|
| 2022 |
59,642
|
38,394
|
| Prior |
183,915
|
115,360
|
| Revolving loans amortized cost basis |
0
|
0
|
| Revolving loans converted to term loans |
130
|
252
|
| Total |
341,340
|
281,766
|
| Consumer and Other [Member] |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
5,782
|
3,037
|
| 2025 |
6,628
|
4,497
|
| 2024 |
4,363
|
1,792
|
| 2023 |
1,195
|
504
|
| 2022 |
352
|
678
|
| Prior |
4,165
|
426
|
| Revolving loans amortized cost basis |
197,242
|
43,251
|
| Revolving loans converted to term loans |
4,525
|
3,884
|
| Total |
224,252
|
58,069
|
| Gross Charge Offs Revolving Loans Amortized Term Loans |
|
5
|
| Gross charge-off total |
|
5
|
| Pass [Member] |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
924,924
|
834,194
|
| 2025 |
1,240,272
|
440,059
|
| 2024 |
603,195
|
494,857
|
| 2023 |
713,859
|
1,334,967
|
| 2022 |
1,559,832
|
1,121,981
|
| Prior |
4,991,998
|
3,018,977
|
| Revolving loans amortized cost basis |
1,426,704
|
1,064,777
|
| Revolving loans converted to term loans |
58,596
|
48,281
|
| Total |
11,519,380
|
8,358,093
|
| Pass [Member] | Commercial Real Estate Loans [Member] |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
640,306
|
595,637
|
| 2025 |
874,826
|
304,734
|
| 2024 |
411,808
|
378,718
|
| 2023 |
595,138
|
1,143,941
|
| 2022 |
1,361,103
|
962,666
|
| Prior |
4,381,752
|
2,631,270
|
| Revolving loans amortized cost basis |
313,107
|
251,597
|
| Revolving loans converted to term loans |
37,298
|
34,757
|
| Total |
8,615,338
|
6,303,320
|
| Gross charge-off total |
|
118
|
| Pass [Member] | Construction Loans [Member] |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
34,672
|
15,742
|
| 2025 |
115,388
|
11,829
|
| 2024 |
41,288
|
0
|
| 2023 |
1,334
|
10,241
|
| 2022 |
11,413
|
0
|
| Prior |
0
|
0
|
| Revolving loans amortized cost basis |
0
|
0
|
| Revolving loans converted to term loans |
0
|
0
|
| Total |
204,095
|
37,812
|
| Pass [Member] | SBA Loans [Member] |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
42,002
|
48,707
|
| 2025 |
74,306
|
25,775
|
| 2024 |
42,455
|
12,077
|
| 2023 |
20,085
|
44,550
|
| 2022 |
57,765
|
45,057
|
| Prior |
181,425
|
100,201
|
| Revolving loans amortized cost basis |
2,563
|
0
|
| Revolving loans converted to term loans |
1,050
|
0
|
| Total |
421,651
|
276,367
|
| Pass [Member] | Commercial and Industrial [Member] |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
175,908
|
133,937
|
| 2025 |
133,326
|
73,869
|
| 2024 |
83,001
|
85,504
|
| 2023 |
77,206
|
73,264
|
| 2022 |
65,449
|
50,997
|
| Prior |
192,599
|
143,690
|
| Revolving loans amortized cost basis |
657,161
|
358,873
|
| Revolving loans converted to term loans |
15,870
|
9,880
|
| Total |
1,400,520
|
930,014
|
| Pass [Member] | Dairy and Livestock and Agribusiness [Member] |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
138
|
3
|
| 2025 |
18
|
211
|
| 2024 |
194
|
0
|
| 2023 |
0
|
0
|
| 2022 |
0
|
507
|
| Prior |
1,041
|
610
|
| Revolving loans amortized cost basis |
260,622
|
411,447
|
| Revolving loans converted to term loans |
19
|
56
|
| Total |
262,032
|
412,834
|
| Pass [Member] | Municipal Lease Finance Receivables [Member] |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
72
|
570
|
| 2025 |
539
|
2,699
|
| 2024 |
2,619
|
0
|
| 2023 |
0
|
4,479
|
| 2022 |
4,108
|
23,701
|
| Prior |
48,748
|
28,093
|
| Revolving loans amortized cost basis |
0
|
0
|
| Revolving loans converted to term loans |
0
|
0
|
| Total |
56,086
|
59,542
|
| Pass [Member] | SFR Mortgage [Member] |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
26,044
|
36,561
|
| 2025 |
35,241
|
16,445
|
| 2024 |
17,467
|
16,766
|
| 2023 |
18,901
|
57,988
|
| 2022 |
59,642
|
38,394
|
| Prior |
182,539
|
114,687
|
| Revolving loans amortized cost basis |
0
|
0
|
| Revolving loans converted to term loans |
130
|
0
|
| Total |
339,964
|
280,841
|
| Pass [Member] | Consumer and Other [Member] |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
5,782
|
3,037
|
| 2025 |
6,628
|
4,497
|
| 2024 |
4,363
|
1,792
|
| 2023 |
1,195
|
504
|
| 2022 |
352
|
659
|
| Prior |
3,894
|
426
|
| Revolving loans amortized cost basis |
193,251
|
42,860
|
| Revolving loans converted to term loans |
4,229
|
3,588
|
| Total |
219,694
|
57,363
|
| Special Mention [Member] |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
5,511
|
3,687
|
| 2025 |
7,310
|
12,755
|
| 2024 |
19,465
|
9,999
|
| 2023 |
35,135
|
50,443
|
| 2022 |
69,818
|
35,776
|
| Prior |
184,546
|
122,675
|
| Revolving loans amortized cost basis |
53,921
|
41,130
|
| Revolving loans converted to term loans |
12,252
|
11,934
|
| Total |
387,958
|
288,399
|
| Special Mention [Member] | Commercial Real Estate Loans [Member] |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
1,897
|
3,604
|
| 2025 |
6,926
|
12,317
|
| 2024 |
18,359
|
8,364
|
| 2023 |
27,424
|
45,946
|
| 2022 |
64,299
|
34,806
|
| Prior |
171,873
|
121,473
|
| Revolving loans amortized cost basis |
17,283
|
8,548
|
| Revolving loans converted to term loans |
9,461
|
8,751
|
| Total |
317,522
|
243,809
|
| Special Mention [Member] | Construction Loans [Member] |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
0
|
|
| 2025 |
0
|
|
| 2024 |
0
|
|
| 2023 |
5,213
|
|
| 2022 |
0
|
|
| Prior |
0
|
|
| Revolving loans amortized cost basis |
0
|
|
| Revolving loans converted to term loans |
0
|
|
| Total |
5,213
|
|
| Special Mention [Member] | SBA Loans [Member] |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
0
|
0
|
| 2025 |
0
|
0
|
| 2024 |
0
|
0
|
| 2023 |
630
|
0
|
| 2022 |
0
|
0
|
| Prior |
8,735
|
391
|
| Revolving loans amortized cost basis |
0
|
0
|
| Revolving loans converted to term loans |
0
|
0
|
| Total |
9,365
|
391
|
| Special Mention [Member] | Commercial and Industrial [Member] |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
3,614
|
83
|
| 2025 |
384
|
62
|
| 2024 |
773
|
1,635
|
| 2023 |
1,868
|
4,497
|
| 2022 |
5,519
|
951
|
| Prior |
2,785
|
359
|
| Revolving loans amortized cost basis |
24,950
|
20,756
|
| Revolving loans converted to term loans |
2,791
|
2,931
|
| Total |
42,684
|
31,274
|
| Special Mention [Member] | Dairy and Livestock and Agribusiness [Member] |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
0
|
0
|
| 2025 |
0
|
376
|
| 2024 |
333
|
0
|
| 2023 |
0
|
0
|
| 2022 |
0
|
0
|
| Prior |
65
|
82
|
| Revolving loans amortized cost basis |
9,614
|
11,435
|
| Revolving loans converted to term loans |
0
|
0
|
| Total |
10,012
|
11,893
|
| Special Mention [Member] | SFR Mortgage [Member] |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
0
|
0
|
| 2025 |
0
|
0
|
| 2024 |
0
|
0
|
| 2023 |
0
|
0
|
| 2022 |
0
|
0
|
| Prior |
1,088
|
370
|
| Revolving loans amortized cost basis |
0
|
0
|
| Revolving loans converted to term loans |
0
|
252
|
| Total |
1,088
|
622
|
| Special Mention [Member] | Consumer and Other [Member] |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
0
|
0
|
| 2025 |
0
|
0
|
| 2024 |
0
|
0
|
| 2023 |
0
|
0
|
| 2022 |
0
|
19
|
| Prior |
0
|
0
|
| Revolving loans amortized cost basis |
2,074
|
391
|
| Revolving loans converted to term loans |
0
|
0
|
| Total |
2,074
|
410
|
| Substandard [Member] |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
1,703
|
4,356
|
| 2025 |
3,278
|
0
|
| 2024 |
11,337
|
4,726
|
| 2023 |
8,619
|
9,444
|
| 2022 |
20,305
|
4,729
|
| Prior |
32,851
|
17,065
|
| Revolving loans amortized cost basis |
23,140
|
8,371
|
| Revolving loans converted to term loans |
8,484
|
4,010
|
| Total |
109,717
|
52,701
|
| Substandard [Member] | Commercial Real Estate Loans [Member] |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
1,703
|
1,456
|
| 2025 |
393
|
0
|
| 2024 |
8,797
|
3,327
|
| 2023 |
5,485
|
7,266
|
| 2022 |
17,607
|
4,578
|
| Prior |
15,225
|
10,108
|
| Revolving loans amortized cost basis |
1,615
|
531
|
| Revolving loans converted to term loans |
249
|
0
|
| Total |
51,074
|
27,266
|
| Substandard [Member] | Construction Loans [Member] |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
0
|
|
| 2025 |
0
|
|
| 2024 |
0
|
|
| 2023 |
0
|
|
| 2022 |
0
|
|
| Prior |
685
|
|
| Revolving loans amortized cost basis |
0
|
|
| Revolving loans converted to term loans |
0
|
|
| Total |
685
|
|
| Substandard [Member] | SBA Loans [Member] |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
0
|
0
|
| 2025 |
0
|
0
|
| 2024 |
756
|
0
|
| 2023 |
297
|
1,537
|
| 2022 |
1,514
|
13
|
| Prior |
7,989
|
4,093
|
| Revolving loans amortized cost basis |
0
|
0
|
| Revolving loans converted to term loans |
0
|
0
|
| Total |
10,556
|
5,643
|
| Substandard [Member] | Commercial and Industrial [Member] |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
0
|
2,900
|
| 2025 |
2,885
|
0
|
| 2024 |
1,784
|
1,399
|
| 2023 |
2,837
|
641
|
| 2022 |
1,184
|
138
|
| Prior |
8,393
|
2,561
|
| Revolving loans amortized cost basis |
10,658
|
990
|
| Revolving loans converted to term loans |
7,939
|
3,714
|
| Total |
35,680
|
12,343
|
| Substandard [Member] | Dairy and Livestock and Agribusiness [Member] |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
0
|
0
|
| 2025 |
0
|
0
|
| 2024 |
0
|
0
|
| 2023 |
0
|
0
|
| 2022 |
0
|
0
|
| Prior |
0
|
0
|
| Revolving loans amortized cost basis |
8,950
|
6,850
|
| Revolving loans converted to term loans |
0
|
0
|
| Total |
8,950
|
6,850
|
| Substandard [Member] | SFR Mortgage [Member] |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
0
|
0
|
| 2025 |
0
|
0
|
| 2024 |
0
|
0
|
| 2023 |
0
|
0
|
| 2022 |
0
|
0
|
| Prior |
288
|
303
|
| Revolving loans amortized cost basis |
0
|
0
|
| Revolving loans converted to term loans |
0
|
0
|
| Total |
288
|
303
|
| Substandard [Member] | Consumer and Other [Member] |
|
|
| Financing Receivable, Credit Quality Indicator [Line Items] |
|
|
| 2026 |
0
|
0
|
| 2025 |
0
|
0
|
| 2024 |
0
|
0
|
| 2023 |
0
|
0
|
| 2022 |
0
|
0
|
| Prior |
271
|
0
|
| Revolving loans amortized cost basis |
1,917
|
0
|
| Revolving loans converted to term loans |
296
|
296
|
| Total |
$ 2,484
|
$ 296
|