v3.25.2
Allowance for Credit Losses - Schedule of Aging of the Company's Loan Portfolio (Details) - USD ($)
$ in Thousands
Jun. 30, 2025
Dec. 31, 2024
Jun. 30, 2024
Financing Receivable, Past Due [Line Items]      
Nonaccrual $ 173,977 $ 154,641 $ 151,399
Loans, net of unearned income 51,041,679 48,055,037 44,675,531
Early buy-out loans guaranteed by U.S. government agencies      
Financing Receivable, Past Due [Line Items]      
Nonaccrual 0 0 0
Loans, net of unearned income 134,067 156,756 134,178
Commercial      
Financing Receivable, Past Due [Line Items]      
Nonaccrual 80,877 73,490 51,087
Loans, net of unearned income 16,387,431 15,574,551 14,154,462
Commercial real estate      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 13,292,010 12,903,944 11,947,197
Commercial real estate | Construction and development      
Financing Receivable, Past Due [Line Items]      
Nonaccrual 3,200 2,282 2,528
Loans, net of unearned income 2,529,117 2,434,081 2,260,551
Commercial real estate | Non-construction      
Financing Receivable, Past Due [Line Items]      
Nonaccrual 29,628 18,760 45,761
Loans, net of unearned income 10,762,893 10,469,863 9,686,646
Home equity      
Financing Receivable, Past Due [Line Items]      
Nonaccrual 1,780 1,117 1,100
Loans, net of unearned income 466,815 445,028 356,313
Residential real estate, excluding early buy-out loans      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 3,948,782 3,612,765 3,067,335
Residential real estate, excluding early buy-out loans | Residential real estate, excluding early buy-out loans      
Financing Receivable, Past Due [Line Items]      
Nonaccrual 28,047 23,762 18,198
Loans, net of unearned income 3,814,715 3,456,009 2,933,157
Premium finance receivables | Premium finance receivables—property & casualty      
Financing Receivable, Past Due [Line Items]      
Nonaccrual 30,404 28,797 32,722
Loans, net of unearned income 8,323,176 7,272,042 7,100,753
Premium finance receivables | Premium finance receivables—life insurance      
Financing Receivable, Past Due [Line Items]      
Nonaccrual 0 6,431 0
Loans, net of unearned income 8,506,960 8,147,145 7,962,115
Consumer and other      
Financing Receivable, Past Due [Line Items]      
Nonaccrual 41 2 3
Loans, net of unearned income 116,505 99,562 87,356
Total loans, net of unearned income, excluding early buy-out loans      
Financing Receivable, Past Due [Line Items]      
Nonaccrual 173,977 154,641 151,399
Loans, net of unearned income 50,907,612 47,898,281 44,541,353
90+ days and still accruing      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 65,500 50,134 68,640
90+ days and still accruing | Early buy-out loans guaranteed by U.S. government agencies      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 50,639 33,952 45,788
90+ days and still accruing | Commercial      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 0 104 304
90+ days and still accruing | Commercial real estate | Construction and development      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 0 0 0
90+ days and still accruing | Commercial real estate | Non-construction      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 0 0 0
90+ days and still accruing | Home equity      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 0 0 0
90+ days and still accruing | Residential real estate, excluding early buy-out loans | Residential real estate, excluding early buy-out loans      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 0 0 0
90+ days and still accruing | Premium finance receivables | Premium finance receivables—property & casualty      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 14,350 16,031 22,427
90+ days and still accruing | Premium finance receivables | Premium finance receivables—life insurance      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 327 0 0
90+ days and still accruing | Consumer and other      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 184 47 121
90+ days and still accruing | Total loans, net of unearned income, excluding early buy-out loans      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 14,861 16,182 22,852
60-89 days past due      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 92,108 164,988 59,416
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 0 618 0
60-89 days past due | Commercial      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 34,855 54,844 16,485
60-89 days past due | Commercial real estate | Construction and development      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 3,271 1,339 1,699
60-89 days past due | Commercial real estate | Non-construction      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 7,986 9,182 4,856
60-89 days past due | Home equity      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 138 1,233 275
60-89 days past due | Residential real estate, excluding early buy-out loans | Residential real estate, excluding early buy-out loans      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 8,954 5,708 1,977
60-89 days past due | Premium finance receivables | Premium finance receivables—property & casualty      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 25,641 19,042 29,925
60-89 days past due | Premium finance receivables | Premium finance receivables—life insurance      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 11,202 72,963 4,118
60-89 days past due | Consumer and other      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 61 59 81
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 92,108 164,370 59,416
30-59 days past due      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 163,323 252,223 139,768
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 0 2,335 0
30-59 days past due | Commercial      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 45,103 92,551 36,358
30-59 days past due | Commercial real estate | Construction and development      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 1,721 4,634 6,539
30-59 days past due | Commercial real estate | Non-construction      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 49,452 26,132 31,526
30-59 days past due | Home equity      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 2,971 2,148 1,229
30-59 days past due | Residential real estate, excluding early buy-out loans | Residential real estate, excluding early buy-out loans      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 38 18,917 130
30-59 days past due | Premium finance receivables | Premium finance receivables—property & casualty      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 29,460 68,219 45,927
30-59 days past due | Premium finance receivables | Premium finance receivables—life insurance      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 34,403 36,405 17,693
30-59 days past due | Consumer and other      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 175 882 366
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 163,323 249,888 139,768
Current      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 50,546,771 47,433,051 44,256,308
Current | Early buy-out loans guaranteed by U.S. government agencies      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 83,428 119,851 88,390
Current | Commercial      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 16,226,596 15,353,562 14,050,228
Current | Commercial real estate | Construction and development      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 2,520,925 2,425,826 2,249,785
Current | Commercial real estate | Non-construction      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 10,675,827 10,415,789 9,604,503
Current | Home equity      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 461,926 440,530 353,709
Current | Residential real estate, excluding early buy-out loans | Residential real estate, excluding early buy-out loans      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 3,777,676 3,407,622 2,912,852
Current | Premium finance receivables | Premium finance receivables—property & casualty      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 8,223,321 7,139,953 6,969,752
Current | Premium finance receivables | Premium finance receivables—life insurance      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 8,461,028 8,031,346 7,940,304
Current | Consumer and other      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income 116,044 98,572 86,785
Current | Total loans, net of unearned income, excluding early buy-out loans      
Financing Receivable, Past Due [Line Items]      
Loans, net of unearned income $ 50,463,343 $ 47,313,200 $ 44,167,918