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Loans and Leases - Summary Of Loan And Lease Portfolio Aging By Class Of Loan (Detail) - USD ($) $ in Thousands | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | $ 56,597,110 | $ 52,505,168
90 or More Days Past Due and Accruing | 0 | 0
Non-accrual | 500,414 | 460,725
Non-accrual with No Allowance | 155,469 | 117,602
Commercial portfolio |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 45,230,196 | 42,068,001
90 or More Days Past Due and Accruing | 0 | 0
Non-accrual | 464,625 | 426,426
Non-accrual with No Allowance | 138,497 | 98,451
Commercial portfolio | Funds held in escrow |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 20,405,237 | 18,037,942
90 or More Days Past Due and Accruing | 0 | 0
Non-accrual | 165,378 | 248,078
Non-accrual with No Allowance | 52,284 | 50,943
Commercial portfolio | Accounts receivable |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 1,231,231 | 1,404,007
90 or More Days Past Due and Accruing | 0 | 0
Non-accrual | 66,844 | 20,787
Non-accrual with No Allowance | 774 | 1,080
Commercial portfolio | Prepaid expenses |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 15,326,007 | 14,492,436
90 or More Days Past Due and Accruing | 0 | 0
Non-accrual | 182,968 | 120,151
Non-accrual with No Allowance | 53,385 | 26,666
Commercial portfolio | Total other assets |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 7,008,839 | 6,898,600
90 or More Days Past Due and Accruing | 0 | 0
Non-accrual | 41,095 | 18,043
Non-accrual with No Allowance | 31,873 | 17,953
Commercial portfolio | Equipment financing |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 1,258,882 | 1,235,016
90 or More Days Past Due and Accruing | 0 | 0
Non-accrual | 8,340 | 19,367
Non-accrual with No Allowance | 181 | 1,809
Consumer portfolio |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 11,366,914 | 10,437,167
90 or More Days Past Due and Accruing | 0 | 0
Non-accrual | 35,789 | 34,299
Non-accrual with No Allowance | 16,972 | 19,151
Consumer portfolio | Residential |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 9,599,577 | 8,853,669
90 or More Days Past Due and Accruing | 0 | 0
Non-accrual | 18,187 | 12,750
Non-accrual with No Allowance | 8,284 | 6,923
Consumer portfolio | Home equity |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 1,370,513 | 1,427,692
90 or More Days Past Due and Accruing | 0 | 0
Non-accrual | 16,743 | 21,425
Non-accrual with No Allowance | 8,688 | 12,225
Consumer portfolio | Other consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 396,824 | 155,806
90 or More Days Past Due and Accruing | 0 | 0
Non-accrual | 859 | 124
Non-accrual with No Allowance | 0 | 3
Total Past Due and Non-accrual |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 567,074 | 574,307
Total Past Due and Non-accrual | Commercial portfolio |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 506,120 | 516,644
Total Past Due and Non-accrual | Commercial portfolio | Funds held in escrow |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 179,322 | 255,345
Total Past Due and Non-accrual | Commercial portfolio | Accounts receivable |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 66,844 | 42,784
Total Past Due and Non-accrual | Commercial portfolio | Prepaid expenses |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 207,508 | 142,824
Total Past Due and Non-accrual | Commercial portfolio | Total other assets |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 41,571 | 46,928
Total Past Due and Non-accrual | Commercial portfolio | Equipment financing |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 10,875 | 28,763
Total Past Due and Non-accrual | Consumer portfolio |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 60,954 | 57,663
Total Past Due and Non-accrual | Consumer portfolio | Residential |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 33,424 | 26,949
Total Past Due and Non-accrual | Consumer portfolio | Home equity |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 24,471 | 30,079
Total Past Due and Non-accrual | Consumer portfolio | Other consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 3,059 | 635
30-59 Days Past Due and Accruing |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 57,989 | 50,885
30-59 Days Past Due and Accruing | Commercial portfolio |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 38,854 | 34,668
30-59 Days Past Due and Accruing | Commercial portfolio | Funds held in escrow |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 12,397 | 3,949
30-59 Days Past Due and Accruing | Commercial portfolio | Accounts receivable |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 0 | 0
30-59 Days Past Due and Accruing | Commercial portfolio | Prepaid expenses |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 23,702 | 22,115
30-59 Days Past Due and Accruing | Commercial portfolio | Total other assets |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 476 | 2,508
30-59 Days Past Due and Accruing | Commercial portfolio | Equipment financing |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 2,279 | 6,096
30-59 Days Past Due and Accruing | Consumer portfolio |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 19,135 | 16,217
30-59 Days Past Due and Accruing | Consumer portfolio | Residential |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 12,163 | 9,595
30-59 Days Past Due and Accruing | Consumer portfolio | Home equity |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 5,602 | 6,273
30-59 Days Past Due and Accruing | Consumer portfolio | Other consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 1,370 | 349
60-89 Days Past Due and Accruing |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 8,671 | 62,697
60-89 Days Past Due and Accruing | Commercial portfolio |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 2,641 | 55,550
60-89 Days Past Due and Accruing | Commercial portfolio | Funds held in escrow |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 1,547 | 3,318
60-89 Days Past Due and Accruing | Commercial portfolio | Accounts receivable |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 0 | 21,997
60-89 Days Past Due and Accruing | Commercial portfolio | Prepaid expenses |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 838 | 558
60-89 Days Past Due and Accruing | Commercial portfolio | Total other assets |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 0 | 26,377
60-89 Days Past Due and Accruing | Commercial portfolio | Equipment financing |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 256 | 3,300
60-89 Days Past Due and Accruing | Consumer portfolio |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 6,030 | 7,147
60-89 Days Past Due and Accruing | Consumer portfolio | Residential |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 3,074 | 4,604
60-89 Days Past Due and Accruing | Consumer portfolio | Home equity |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 2,126 | 2,381
60-89 Days Past Due and Accruing | Consumer portfolio | Other consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 830 | 162
Current |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 56,030,036 | 51,930,861
Current | Commercial portfolio |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 44,724,076 | 41,551,357
Current | Commercial portfolio | Funds held in escrow |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 20,225,915 | 17,782,597
Current | Commercial portfolio | Accounts receivable |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 1,164,387 | 1,361,223
Current | Commercial portfolio | Prepaid expenses |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 15,118,499 | 14,349,612
Current | Commercial portfolio | Total other assets |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 6,967,268 | 6,851,672
Current | Commercial portfolio | Equipment financing |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 1,248,007 | 1,206,253
Current | Consumer portfolio |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 11,305,960 | 10,379,504
Current | Consumer portfolio | Residential |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 9,566,153 | 8,826,720
Current | Consumer portfolio | Home equity |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | 1,346,042 | 1,397,613
Current | Consumer portfolio | Other consumer |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases | $ 393,765 | 155,171
In Process | Commercial portfolio |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans and Leases |  | $ 32,700

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