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Loans and Leases and the Allowance for Credit Losses - Summary of Loan grades applied various classes of Commercial and Real Estate Loans (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2023
Dec. 31, 2022
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount $ 132,354,685 $ 132,354,685 $ 131,564,163
Gross charge-offs 122,128 379,291  
Revolving Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 27,515,555 27,515,555 26,197,545
Gross charge-offs 15,911 19,852  
Revolving Loans Converted to Term Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 1,626,606 1,626,606 1,664,096
Gross charge-offs 1,522 3,339  
Term Loans 2023 [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 13,605,150 13,605,150  
Gross charge-offs 9,577 17,479  
Term Loans 2022 [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 22,386,601 22,386,601 24,853,925
Gross charge-offs 15,404 46,324  
Term Loans 2021 [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 16,333,780 16,333,780 18,747,757
Gross charge-offs 8,983 32,292  
Term Loans 2020 [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 11,118,156 11,118,156 13,072,920
Gross charge-offs 5,091 22,500  
Term Loans 2019 [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 10,677,789 10,677,789 12,737,602
Gross charge-offs 8,346 99,469  
Term Loans 2018 [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount     7,534,367
Term Loans Prior Period [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 29,091,048 29,091,048 26,755,951
Gross charge-offs 57,294 138,036  
Commercial, Financial, Leasing, etc. [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 45,058,033 45,058,033 41,850,566
Gross charge-offs 26,844 67,104  
Commercial, Financial, Leasing, etc. [Member] | Revolving Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 21,988,527 21,988,527 20,313,716
Gross charge-offs 6,188 6,961  
Commercial, Financial, Leasing, etc. [Member] | Revolving Loans Converted to Term Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 92,565 92,565 64,599
Commercial, Financial, Leasing, etc. [Member] | Pass [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 42,593,485 42,593,485 39,621,772
Commercial, Financial, Leasing, etc. [Member] | Pass [Member] | Revolving Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 20,869,512 20,869,512 19,444,247
Commercial, Financial, Leasing, etc. [Member] | Pass [Member] | Revolving Loans Converted to Term Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 56,263 56,263 40,471
Commercial, Financial, Leasing, etc. [Member] | Criticized Accrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 1,979,128 1,979,128 1,881,590
Commercial, Financial, Leasing, etc. [Member] | Criticized Accrual [Member] | Revolving Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 878,730 878,730 768,497
Commercial, Financial, Leasing, etc. [Member] | Criticized Accrual [Member] | Revolving Loans Converted to Term Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 26,255 26,255 17,026
Commercial, Financial, Leasing, etc. [Member] | Criticized Nonaccrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 485,420 485,420 347,204
Commercial, Financial, Leasing, etc. [Member] | Criticized Nonaccrual [Member] | Revolving Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 240,285 240,285 100,972
Commercial, Financial, Leasing, etc. [Member] | Criticized Nonaccrual [Member] | Revolving Loans Converted to Term Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 10,047 10,047 7,102
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2023 [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 5,911,250 5,911,250  
Gross charge-offs 2,124 2,959  
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2023 [Member] | Pass [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 5,789,909 5,789,909  
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2023 [Member] | Criticized Accrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 109,004 109,004  
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2023 [Member] | Criticized Nonaccrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 12,337 12,337  
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2022 [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 7,339,736 7,339,736 8,841,135
Gross charge-offs 7,929 18,887  
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2022 [Member] | Pass [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 7,017,863 7,017,863 8,575,130
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2022 [Member] | Criticized Accrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 264,016 264,016 247,626
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2022 [Member] | Criticized Nonaccrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 57,857 57,857 18,379
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2021 [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 4,337,440 4,337,440 5,227,686
Gross charge-offs 2,998 11,108  
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2021 [Member] | Pass [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 4,114,909 4,114,909 4,952,758
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2021 [Member] | Criticized Accrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 180,450 180,450 222,861
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2021 [Member] | Criticized Nonaccrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 42,081 42,081 52,067
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2020 [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 1,657,961 1,657,961 2,252,579
Gross charge-offs 1,766 8,518  
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2020 [Member] | Pass [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 1,510,693 1,510,693 2,024,603
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2020 [Member] | Criticized Accrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 113,930 113,930 190,368
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2020 [Member] | Criticized Nonaccrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 33,338 33,338 37,608
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2019 [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 1,359,582 1,359,582 1,949,169
Gross charge-offs 2,539 7,056  
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2019 [Member] | Pass [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 1,238,701 1,238,701 1,796,047
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2019 [Member] | Criticized Accrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 99,434 99,434 116,881
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2019 [Member] | Criticized Nonaccrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 21,447 21,447 36,241
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2018 [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount     924,743
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2018 [Member] | Pass [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount     817,569
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2018 [Member] | Criticized Accrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount     71,485
Commercial, Financial, Leasing, etc. [Member] | Term Loans 2018 [Member] | Criticized Nonaccrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount     35,689
Commercial, Financial, Leasing, etc. [Member] | Term Loans Prior Period [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 2,370,972 2,370,972 2,276,939
Gross charge-offs 3,300 11,615  
Commercial, Financial, Leasing, etc. [Member] | Term Loans Prior Period [Member] | Pass [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 1,995,635 1,995,635 1,970,947
Commercial, Financial, Leasing, etc. [Member] | Term Loans Prior Period [Member] | Criticized Accrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 307,309 307,309 246,846
Commercial, Financial, Leasing, etc. [Member] | Term Loans Prior Period [Member] | Criticized Nonaccrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 68,028 68,028 59,146
Commercial [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 35,743,775 35,743,775 36,748,173
Gross charge-offs 48,093 178,334  
Commercial [Member] | Revolving Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 757,640 757,640 941,189
Commercial [Member] | Pass [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 29,464,493 29,464,493 30,531,762
Commercial [Member] | Pass [Member] | Revolving Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 710,648 710,648 869,981
Commercial [Member] | Criticized Accrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 5,043,195 5,043,195 4,819,749
Commercial [Member] | Criticized Accrual [Member] | Revolving Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 22,844 22,844 48,099
Commercial [Member] | Criticized Nonaccrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 1,236,087 1,236,087 1,396,662
Commercial [Member] | Criticized Nonaccrual [Member] | Revolving Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 24,148 24,148 23,109
Commercial [Member] | Term Loans 2023 [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 2,554,424 2,554,424  
Commercial [Member] | Term Loans 2023 [Member] | Pass [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 2,553,454 2,553,454  
Commercial [Member] | Term Loans 2023 [Member] | Criticized Accrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 725 725  
Commercial [Member] | Term Loans 2023 [Member] | Criticized Nonaccrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 245 245  
Commercial [Member] | Term Loans 2022 [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 4,263,131 4,263,131 4,473,083
Commercial [Member] | Term Loans 2022 [Member] | Pass [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 3,578,095 3,578,095 4,136,890
Commercial [Member] | Term Loans 2022 [Member] | Criticized Accrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 630,132 630,132 324,652
Commercial [Member] | Term Loans 2022 [Member] | Criticized Nonaccrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 54,904 54,904 11,541
Commercial [Member] | Term Loans 2021 [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 3,482,199 3,482,199 3,865,843
Commercial [Member] | Term Loans 2021 [Member] | Pass [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 2,989,307 2,989,307 3,379,900
Commercial [Member] | Term Loans 2021 [Member] | Criticized Accrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 478,637 478,637 463,484
Commercial [Member] | Term Loans 2021 [Member] | Criticized Nonaccrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 14,255 14,255 22,459
Commercial [Member] | Term Loans 2020 [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 3,633,105 3,633,105 4,040,133
Gross charge-offs   424  
Commercial [Member] | Term Loans 2020 [Member] | Pass [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 2,978,906 2,978,906 3,388,590
Commercial [Member] | Term Loans 2020 [Member] | Criticized Accrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 494,243 494,243 467,557
Commercial [Member] | Term Loans 2020 [Member] | Criticized Nonaccrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 159,956 159,956 183,986
Commercial [Member] | Term Loans 2019 [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 5,502,711 5,502,711 5,542,410
Gross charge-offs   77,906  
Commercial [Member] | Term Loans 2019 [Member] | Pass [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 4,446,005 4,446,005 4,557,065
Commercial [Member] | Term Loans 2019 [Member] | Criticized Accrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 905,654 905,654 688,239
Commercial [Member] | Term Loans 2019 [Member] | Criticized Nonaccrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 151,052 151,052 297,106
Commercial [Member] | Term Loans 2018 [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount     4,401,183
Commercial [Member] | Term Loans 2018 [Member] | Pass [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount     3,293,380
Commercial [Member] | Term Loans 2018 [Member] | Criticized Accrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount     937,421
Commercial [Member] | Term Loans 2018 [Member] | Criticized Nonaccrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount     170,382
Commercial [Member] | Term Loans Prior Period [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 15,550,565 15,550,565 13,484,332
Gross charge-offs 48,093 100,004  
Commercial [Member] | Term Loans Prior Period [Member] | Pass [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 12,208,078 12,208,078 10,905,956
Commercial [Member] | Term Loans Prior Period [Member] | Criticized Accrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 2,510,960 2,510,960 1,890,297
Commercial [Member] | Term Loans Prior Period [Member] | Criticized Nonaccrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 831,527 831,527 688,079
Residential Builder and Developer [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 1,100,494 1,100,494 1,314,730
Gross charge-offs 245 1,978  
Residential Builder and Developer [Member] | Revolving Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 134,502 134,502 181,219
Gross charge-offs   1,678  
Residential Builder and Developer [Member] | Pass [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 994,461 994,461 1,117,256
Residential Builder and Developer [Member] | Pass [Member] | Revolving Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 133,839 133,839 150,404
Residential Builder and Developer [Member] | Criticized Accrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 102,680 102,680 196,245
Residential Builder and Developer [Member] | Criticized Accrual [Member] | Revolving Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 663 663 30,815
Residential Builder and Developer [Member] | Criticized Nonaccrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 3,353 3,353 1,229
Residential Builder and Developer [Member] | Term Loans 2023 [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 433,648 433,648  
Residential Builder and Developer [Member] | Term Loans 2023 [Member] | Pass [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 433,338 433,338  
Residential Builder and Developer [Member] | Term Loans 2023 [Member] | Criticized Accrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 310 310  
Residential Builder and Developer [Member] | Term Loans 2022 [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 349,547 349,547 683,731
Gross charge-offs 245 245  
Residential Builder and Developer [Member] | Term Loans 2022 [Member] | Pass [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 337,680 337,680 680,705
Residential Builder and Developer [Member] | Term Loans 2022 [Member] | Criticized Accrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 11,867 11,867 2,969
Residential Builder and Developer [Member] | Term Loans 2022 [Member] | Criticized Nonaccrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount     57
Residential Builder and Developer [Member] | Term Loans 2021 [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 95,447 95,447 259,205
Residential Builder and Developer [Member] | Term Loans 2021 [Member] | Pass [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 67,233 67,233 230,079
Residential Builder and Developer [Member] | Term Loans 2021 [Member] | Criticized Accrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 25,379 25,379 28,472
Residential Builder and Developer [Member] | Term Loans 2021 [Member] | Criticized Nonaccrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 2,835 2,835 654
Residential Builder and Developer [Member] | Term Loans 2020 [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 6,818 6,818 21,232
Residential Builder and Developer [Member] | Term Loans 2020 [Member] | Pass [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 6,818 6,818 11,280
Residential Builder and Developer [Member] | Term Loans 2020 [Member] | Criticized Accrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount     9,952
Residential Builder and Developer [Member] | Term Loans 2019 [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 66,693 66,693 131,597
Residential Builder and Developer [Member] | Term Loans 2019 [Member] | Pass [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 2,050 2,050 22,111
Residential Builder and Developer [Member] | Term Loans 2019 [Member] | Criticized Accrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 64,125 64,125 108,968
Residential Builder and Developer [Member] | Term Loans 2019 [Member] | Criticized Nonaccrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 518 518 518
Residential Builder and Developer [Member] | Term Loans 2018 [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount     27,881
Residential Builder and Developer [Member] | Term Loans 2018 [Member] | Pass [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount     12,812
Residential Builder and Developer [Member] | Term Loans 2018 [Member] | Criticized Accrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount     15,069
Residential Builder and Developer [Member] | Term Loans Prior Period [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 13,839 13,839 9,865
Gross charge-offs   55  
Residential Builder and Developer [Member] | Term Loans Prior Period [Member] | Pass [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 13,503 13,503 9,865
Residential Builder and Developer [Member] | Term Loans Prior Period [Member] | Criticized Accrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 336 336  
Other Commercial Construction [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 6,729,329 6,729,329 7,301,668
Gross charge-offs 3,236 3,236  
Other Commercial Construction [Member] | Revolving Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 23,129 23,129 18,001
Other Commercial Construction [Member] | Pass [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 4,508,838 4,508,838 5,204,061
Other Commercial Construction [Member] | Pass [Member] | Revolving Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 20,171 20,171 15,575
Other Commercial Construction [Member] | Criticized Accrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 2,084,487 2,084,487 1,972,670
Other Commercial Construction [Member] | Criticized Nonaccrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 136,004 136,004 124,937
Other Commercial Construction [Member] | Criticized Nonaccrual [Member] | Revolving Loans [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 2,958 2,958 2,426
Other Commercial Construction [Member] | Term Loans 2023 [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 643,494 643,494  
Other Commercial Construction [Member] | Term Loans 2023 [Member] | Pass [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 636,314 636,314  
Other Commercial Construction [Member] | Term Loans 2023 [Member] | Criticized Accrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 7,180 7,180  
Other Commercial Construction [Member] | Term Loans 2022 [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 1,612,619 1,612,619 1,070,667
Other Commercial Construction [Member] | Term Loans 2022 [Member] | Pass [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 1,481,975 1,481,975 1,032,774
Other Commercial Construction [Member] | Term Loans 2022 [Member] | Criticized Accrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 130,644 130,644 37,893
Other Commercial Construction [Member] | Term Loans 2021 [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 1,218,228 1,218,228 1,235,332
Other Commercial Construction [Member] | Term Loans 2021 [Member] | Pass [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 1,023,831 1,023,831 1,080,141
Other Commercial Construction [Member] | Term Loans 2021 [Member] | Criticized Accrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 184,379 184,379 145,199
Other Commercial Construction [Member] | Term Loans 2021 [Member] | Criticized Nonaccrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 10,018 10,018 9,992
Other Commercial Construction [Member] | Term Loans 2020 [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 1,254,377 1,254,377 1,590,345
Other Commercial Construction [Member] | Term Loans 2020 [Member] | Pass [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 676,613 676,613 1,225,845
Other Commercial Construction [Member] | Term Loans 2020 [Member] | Criticized Accrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 531,138 531,138 320,463
Other Commercial Construction [Member] | Term Loans 2020 [Member] | Criticized Nonaccrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 46,626 46,626 44,037
Other Commercial Construction [Member] | Term Loans 2019 [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 1,353,034 1,353,034 2,246,897
Gross charge-offs 3,236 3,236  
Other Commercial Construction [Member] | Term Loans 2019 [Member] | Pass [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 465,423 465,423 1,185,685
Other Commercial Construction [Member] | Term Loans 2019 [Member] | Criticized Accrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 837,446 837,446 1,025,371
Other Commercial Construction [Member] | Term Loans 2019 [Member] | Criticized Nonaccrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 50,165 50,165 35,841
Other Commercial Construction [Member] | Term Loans 2018 [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount     676,578
Other Commercial Construction [Member] | Term Loans 2018 [Member] | Pass [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount     366,686
Other Commercial Construction [Member] | Term Loans 2018 [Member] | Criticized Accrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount     299,350
Other Commercial Construction [Member] | Term Loans 2018 [Member] | Criticized Nonaccrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount     10,542
Other Commercial Construction [Member] | Term Loans Prior Period [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 624,448 624,448 463,848
Other Commercial Construction [Member] | Term Loans Prior Period [Member] | Pass [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 204,511 204,511 297,355
Other Commercial Construction [Member] | Term Loans Prior Period [Member] | Criticized Accrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount 393,700 393,700 144,394
Other Commercial Construction [Member] | Term Loans Prior Period [Member] | Criticized Nonaccrual [Member]      
Financing Receivable Recorded Investment [Line Items]      
Loans and leases, net of unearned discount $ 26,237 $ 26,237 $ 22,099