Loans and Allowance for Credit Losses for Loans - Past Due, Non-Accrual and Current Loans by Loan Portfolio Class (Details) - USD ($)
$ in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
$ 52,467,251
|
$ 50,136,728
|
| Non-Accrual Loans |
462,629
|
433,938
|
| Non-Accrual Loans Without Allowance for Loan Losses |
242,894
|
228,832
|
| Financial Asset, Past Due |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
642,839
|
575,266
|
| 30-59 Days Past Due Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
150,997
|
120,022
|
| 60-89 Days Past Due Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
13,147
|
16,724
|
| 90 Days or More Past Due Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
16,066
|
4,582
|
| Current Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
51,824,412
|
49,561,462
|
| Commercial and industrial |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
11,961,242
|
10,961,519
|
| Non-Accrual Loans |
147,731
|
138,321
|
| Non-Accrual Loans Without Allowance for Loan Losses |
16,428
|
21,132
|
| Commercial and industrial | Financial Asset, Past Due |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
159,089
|
150,772
|
| Commercial and industrial | 30-59 Days Past Due Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
5,083
|
11,177
|
| Commercial and industrial | 60-89 Days Past Due Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
2,748
|
1,274
|
| Commercial and industrial | 90 Days or More Past Due Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
3,527
|
0
|
| Commercial and industrial | Current Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
11,802,153
|
10,810,747
|
| Commercial real estate |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
30,348,835
|
29,243,982
|
| Non-Accrual Loans |
265,220
|
245,361
|
| Non-Accrual Loans Without Allowance for Loan Losses |
194,607
|
177,372
|
| Commercial real estate | Financial Asset, Past Due |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
378,460
|
318,383
|
| Commercial real estate | 30-59 Days Past Due Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
107,786
|
72,810
|
| Commercial real estate | 60-89 Days Past Due Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
0
|
0
|
| Commercial real estate | 90 Days or More Past Due Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
5,454
|
212
|
| Commercial real estate | Current Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
29,970,375
|
28,925,599
|
| Commercial real estate | Commercial real estate |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
27,873,726
|
26,772,749
|
| Non-Accrual Loans |
256,081
|
236,221
|
| Non-Accrual Loans Without Allowance for Loan Losses |
194,607
|
177,372
|
| Commercial real estate | Commercial real estate | Financial Asset, Past Due |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
367,569
|
309,243
|
| Commercial real estate | Commercial real estate | 30-59 Days Past Due Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
106,034
|
72,810
|
| Commercial real estate | Commercial real estate | 60-89 Days Past Due Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
0
|
0
|
| Commercial real estate | Commercial real estate | 90 Days or More Past Due Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
5,454
|
212
|
| Commercial real estate | Commercial real estate | Current Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
27,506,157
|
26,463,506
|
| Commercial real estate | Construction |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
2,475,109
|
2,471,233
|
| Non-Accrual Loans |
9,139
|
9,140
|
| Non-Accrual Loans Without Allowance for Loan Losses |
0
|
0
|
| Commercial real estate | Construction | Financial Asset, Past Due |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
10,891
|
9,140
|
| Commercial real estate | Construction | 30-59 Days Past Due Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
1,752
|
0
|
| Commercial real estate | Construction | 60-89 Days Past Due Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
0
|
0
|
| Commercial real estate | Construction | 90 Days or More Past Due Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
0
|
0
|
| Commercial real estate | Construction | Current Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
2,464,218
|
2,462,093
|
| Residential mortgage |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
5,982,941
|
5,826,192
|
| Non-Accrual Loans |
42,992
|
44,424
|
| Non-Accrual Loans Without Allowance for Loan Losses |
29,237
|
28,320
|
| Residential mortgage | Financial Asset, Past Due |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
76,864
|
79,520
|
| Residential mortgage | 30-59 Days Past Due Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
22,154
|
21,615
|
| Residential mortgage | 60-89 Days Past Due Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
6,495
|
10,181
|
| Residential mortgage | 90 Days or More Past Due Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
5,223
|
3,300
|
| Residential mortgage | Current Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
5,906,077
|
5,746,672
|
| Consumer loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
4,174,233
|
4,105,035
|
| Non-Accrual Loans |
6,686
|
5,832
|
| Non-Accrual Loans Without Allowance for Loan Losses |
2,622
|
2,008
|
| Consumer loans | Financial Asset, Past Due |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
28,426
|
26,591
|
| Consumer loans | 30-59 Days Past Due Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
15,974
|
14,420
|
| Consumer loans | 60-89 Days Past Due Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
3,904
|
5,269
|
| Consumer loans | 90 Days or More Past Due Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
1,862
|
1,070
|
| Consumer loans | Current Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
4,145,807
|
4,078,444
|
| Consumer loans | Home equity |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
728,623
|
687,680
|
| Non-Accrual Loans |
6,460
|
5,530
|
| Non-Accrual Loans Without Allowance for Loan Losses |
2,622
|
2,008
|
| Consumer loans | Home equity | Financial Asset, Past Due |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
7,936
|
7,963
|
| Consumer loans | Home equity | 30-59 Days Past Due Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
1,379
|
1,813
|
| Consumer loans | Home equity | 60-89 Days Past Due Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
97
|
620
|
| Consumer loans | Home equity | 90 Days or More Past Due Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
0
|
0
|
| Consumer loans | Home equity | Current Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
720,687
|
679,717
|
| Consumer loans | Automobile |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
2,150,089
|
2,184,600
|
| Non-Accrual Loans |
210
|
279
|
| Non-Accrual Loans Without Allowance for Loan Losses |
0
|
0
|
| Consumer loans | Automobile | Financial Asset, Past Due |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
13,150
|
13,045
|
| Consumer loans | Automobile | 30-59 Days Past Due Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
9,119
|
10,827
|
| Consumer loans | Automobile | 60-89 Days Past Due Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
2,814
|
1,328
|
| Consumer loans | Automobile | 90 Days or More Past Due Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
1,007
|
611
|
| Consumer loans | Automobile | Current Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
2,136,939
|
2,171,555
|
| Consumer loans | Other consumer |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
1,295,521
|
1,232,755
|
| Non-Accrual Loans |
16
|
23
|
| Non-Accrual Loans Without Allowance for Loan Losses |
0
|
0
|
| Consumer loans | Other consumer | Financial Asset, Past Due |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
7,340
|
5,583
|
| Consumer loans | Other consumer | 30-59 Days Past Due Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
5,476
|
1,780
|
| Consumer loans | Other consumer | 60-89 Days Past Due Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
993
|
3,321
|
| Consumer loans | Other consumer | 90 Days or More Past Due Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
855
|
459
|
| Consumer loans | Other consumer | Current Loans |
|
|
| Financing Receivable, Past Due [Line Items] |
|
|
| Loans |
$ 1,288,181
|
$ 1,227,172
|