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v3.22.1

Allowance for Credit Losses (Schedule of Aging of the Company's Loan Portfolio) (Detail) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021 | Mar. 31, 2021
--- | --- | --- | ---
Financing Receivable, Past Due [Line Items] |  |  |
Nonaccrual | $ 49,560 | $ 67,069 | $ 94,115
90+ days and still accruing | 41,364 | 7,369 | 4,944
Loans, net of unearned income | 35,280,547 | 34,789,104 | 33,171,233
Early buy-out loans guaranteed by U.S. government agencies |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Nonaccrual | 4,661 | 0 | 0
90+ days and still accruing | 28,958 | 0 | 0
Loans, net of unearned income | 50,096 | 30,828 | 51,841
Commercial |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 11,583,963 | 11,904,068 | 12,708,207
Commercial | Commercial, industrial and other |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Nonaccrual | 16,878 | 20,399 | 22,459
90+ days and still accruing | 0 | 0 | 0
Loans, net of unearned income | 11,329,999 | 11,345,785 | 9,415,225
Commercial | Commercial PPP loans |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Nonaccrual | 0 | 0 | 0
90+ days and still accruing | 0 | 15 | 0
Loans, net of unearned income | 253,964 | 558,283 | 3,292,982
Commercial real estate |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 9,235,074 | 8,990,286 | 8,544,779
Commercial real estate | Construction and development |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Nonaccrual | 1,054 | 1,377 | 2,673
90+ days and still accruing | 0 | 0 | 0
Loans, net of unearned income | 1,396,406 | 1,356,204 | 1,353,324
Commercial real estate | Non-construction |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Nonaccrual | 11,247 | 20,369 | 31,707
90+ days and still accruing | 0 | 0 | 0
Loans, net of unearned income | 7,838,668 | 7,634,082 | 7,191,455
Home equity |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Nonaccrual | 1,747 | 2,574 | 5,536
90+ days and still accruing | 0 | 0 | 0
Loans, net of unearned income | 321,435 | 335,155 | 390,253
Residential real estate |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 1,799,985 | 1,637,099 | 1,421,973
Residential real estate | Residential real estate, excluding early buy-out loans |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Nonaccrual | 7,262 | 16,440 | 21,553
90+ days and still accruing | 0 | 0 | 0
Loans, net of unearned income | 1,749,889 | 1,606,271 | 1,370,132
Premium finance receivables | Property and casualty insurance loans |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Nonaccrual | 6,707 | 5,433 | 9,690
90+ days and still accruing | 12,363 | 7,210 | 4,592
Loans, net of unearned income | 4,937,408 | 4,855,487 | 3,958,543
Premium finance receivables | Life insurance loans |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Nonaccrual | 0 | 0 | 0
90+ days and still accruing | 0 | 7 | 191
Loans, net of unearned income | 7,354,163 | 7,042,810 | 6,111,495
Consumer and other |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Nonaccrual | 4 | 477 | 497
90+ days and still accruing | 43 | 137 | 161
Loans, net of unearned income | 48,519 | 24,199 | 35,983
Total loans, net of unearned income, excluding early buy-out loans |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Nonaccrual | 44,899 | 67,069 | 94,115
90+ days and still accruing | 12,406 | 7,369 | 4,944
Loans, net of unearned income | 35,230,451 | 34,758,276 | 33,119,392
60-89 days past due |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 35,730 | 53,666 | 28,005
60-89 days past due | Early buy-out loans guaranteed by U.S. government agencies |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 0 | 0 | 0
60-89 days past due | Commercial | Commercial, industrial and other |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 1,294 | 23,492 | 13,292
60-89 days past due | Commercial | Commercial PPP loans |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 0 | 770 | 0
60-89 days past due | Commercial real estate | Construction and development |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 0 | 0 | 499
60-89 days past due | Commercial real estate | Non-construction |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 2,648 | 284 | 7,657
60-89 days past due | Home equity |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 199 | 0 | 492
60-89 days past due | Residential real estate | Residential real estate, excluding early buy-out loans |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 293 | 982 | 944
60-89 days past due | Premium finance receivables | Property and casualty insurance loans |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 8,890 | 15,490 | 5,113
60-89 days past due | Premium finance receivables | Life insurance loans |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 22,401 | 12,614 | 0
60-89 days past due | Consumer and other |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 5 | 34 | 8
60-89 days past due | Total loans, net of unearned income, excluding early buy-out loans |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 35,730 | 53,666 | 28,005
30-59 days past due |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 118,589 | 187,423 | 151,704
30-59 days past due | Early buy-out loans guaranteed by U.S. government agencies |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 185 | 275 | 0
30-59 days past due | Commercial | Commercial, industrial and other |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 31,873 | 42,933 | 35,535
30-59 days past due | Commercial | Commercial PPP loans |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 16 | 928 | 6
30-59 days past due | Commercial real estate | Construction and development |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 1,409 | 2,809 | 23,967
30-59 days past due | Commercial real estate | Non-construction |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 28,732 | 37,634 | 46,201
30-59 days past due | Home equity |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 545 | 1,120 | 780
30-59 days past due | Residential real estate | Residential real estate, excluding early buy-out loans |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 18,808 | 12,145 | 13,768
30-59 days past due | Premium finance receivables | Property and casualty insurance loans |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 21,278 | 22,419 | 16,552
30-59 days past due | Premium finance receivables | Life insurance loans |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 15,522 | 66,651 | 14,821
30-59 days past due | Consumer and other |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 221 | 509 | 74
30-59 days past due | Total loans, net of unearned income, excluding early buy-out loans |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 118,404 | 187,148 | 151,704
Current |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 35,035,304 | 34,473,577 | 32,892,465
Current | Early buy-out loans guaranteed by U.S. government agencies |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 16,292 | 30,553 | 51,841
Current | Commercial | Commercial, industrial and other |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 11,279,954 | 11,258,961 | 9,343,939
Current | Commercial | Commercial PPP loans |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 253,948 | 556,570 | 3,292,976
Current | Commercial real estate | Construction and development |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 1,393,943 | 1,352,018 | 1,326,185
Current | Commercial real estate | Non-construction |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 7,796,041 | 7,575,795 | 7,105,890
Current | Home equity |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 318,944 | 331,461 | 383,445
Current | Residential real estate | Residential real estate, excluding early buy-out loans |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 1,723,526 | 1,576,704 | 1,333,867
Current | Premium finance receivables | Property and casualty insurance loans |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 4,888,170 | 4,804,935 | 3,922,596
Current | Premium finance receivables | Life insurance loans |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 7,316,240 | 6,963,538 | 6,096,483
Current | Consumer and other |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | 48,246 | 23,042 | 35,243
Current | Total loans, net of unearned income, excluding early buy-out loans |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans, net of unearned income | $ 35,019,012 | $ 34,443,024 | $ 32,840,624

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