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Loans - Aging analysis of past due loans (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Loans and Allowance for Loan Losses |  |
Non-Accruing | $ 88,383 | $ 95,188
Total loans | 23,788,949 | 24,664,134
30 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 63,121 | 20,185
60 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 15,855 | 29,380
90 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 1,818 | 11,651
Total Past Due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 80,794 | 61,216
Current |  |
Loans and Allowance for Loan Losses |  |
Total loans | 23,619,772 | 24,507,730
Non-acquired loans |  |
Loans and Allowance for Loan Losses |  |
Total loans | 14,978,428 | 12,289,456
Construction and land development |  |
Loans and Allowance for Loan Losses |  |
Non-Accruing | 1,857 | 2,421
Total loans | 2,032,731 | 1,890,846
Construction and land development | 30 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 1,696 | 520
Construction and land development | 60 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 426 | 1,142
Construction and land development | Total Past Due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 2,122 | 1,662
Construction and land development | Current |  |
Loans and Allowance for Loan Losses |  |
Total loans | 2,028,752 | 1,886,763
Consumer Owner Occupied Loans |  |
Loans and Allowance for Loan Losses |  |
Non-Accruing | 24,326 | 28,477
Total loans | 3,569,791 | 3,682,667
Consumer Owner Occupied Loans | 30 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 2,097 | 1,165
Consumer Owner Occupied Loans | 60 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 610 | 3,294
Consumer Owner Occupied Loans | 90 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans |  | 34
Consumer Owner Occupied Loans | Total Past Due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 2,707 | 4,493
Consumer Owner Occupied Loans | Current |  |
Loans and Allowance for Loan Losses |  |
Total loans | 3,542,758 | 3,649,697
Home equity loans |  |
Loans and Allowance for Loan Losses |  |
Non-Accruing | 8,592 | 9,926
Total loans | 1,163,776 | 1,292,141
Home equity loans | 30 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 1,509 | 1,805
Home equity loans | 60 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 837 | 481
Home equity loans | Total Past Due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 2,346 | 2,286
Home equity loans | Current |  |
Loans and Allowance for Loan Losses |  |
Total loans | 1,152,838 | 1,279,929
Commercial and industrial |  |
Loans and Allowance for Loan Losses |  |
Non-Accruing | 5,688 | 9,218
Total loans | 3,959,726 | 5,046,310
Commercial and industrial | 30 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 38,439 | 10,979
Commercial and industrial | 60 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 10,234 | 22,089
Commercial and industrial | 90 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 876 | 10,864
Commercial and industrial | Total Past Due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 49,549 | 43,932
Commercial and industrial | Current |  |
Loans and Allowance for Loan Losses |  |
Total loans | 3,904,489 | 4,993,160
Other income producing property |  |
Loans and Allowance for Loan Losses |  |
Non-Accruing | 3,945 | 7,543
Total loans | 762,408 | 854,900
Other income producing property | 30 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 2,333 | 897
Other income producing property | 60 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 386 | 338
Other income producing property | 90 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 48 | 278
Other income producing property | Total Past Due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 2,767 | 1,513
Other income producing property | Current |  |
Loans and Allowance for Loan Losses |  |
Total loans | 755,696 | 845,844
Consumer loans |  |
Loans and Allowance for Loan Losses |  |
Non-Accruing | 4,270 | 6,074
Total loans | 912,445 | 894,334
Consumer loans | 30 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 1,368 | 1,718
Consumer loans | 60 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 785 | 818
Consumer loans | 90 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans |  | 4
Consumer loans | Total Past Due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 2,153 | 2,540
Consumer loans | Current |  |
Loans and Allowance for Loan Losses |  |
Total loans | 906,022 | 885,720
Other loans |  |
Loans and Allowance for Loan Losses |  |
Total loans | 30,798 | 17,993
Other loans | 30 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans |  | 13
Other loans | 60 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans |  | 6
Other loans | Total Past Due |  |
Loans and Allowance for Loan Losses |  |
Total loans |  | 19
Other loans | Current |  |
Loans and Allowance for Loan Losses |  |
Total loans | 30,798 | 17,974
Commercial loans |  |
Loans and Allowance for Loan Losses |  |
Total loans | 17,428,544 | 18,076,076
Commercial loans | Construction and land development |  |
Loans and Allowance for Loan Losses |  |
Total loans | 1,367,743 | 1,231,510
Commercial loans | Commercial non-owner occupied |  |
Loans and Allowance for Loan Losses |  |
Non-Accruing | 20,098 | 5,470
Total loans | 6,368,784 | 6,152,246
Commercial loans | Commercial non-owner occupied | 30 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 4,418 | 188
Commercial loans | Commercial non-owner occupied | 60 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 1,197 | 372
Commercial loans | Commercial non-owner occupied | 90 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans |  | 471
Commercial loans | Commercial non-owner occupied | Total Past Due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 5,615 | 1,031
Commercial loans | Commercial non-owner occupied | Current |  |
Loans and Allowance for Loan Losses |  |
Total loans | 6,343,071 | 6,145,745
Commercial loans | Commercial owner occupied real estate loan |  |
Loans and Allowance for Loan Losses |  |
Non-Accruing | 19,607 | 26,059
Total loans | 4,988,490 | 4,832,697
Commercial loans | Commercial owner occupied real estate loan | 30 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 11,261 | 2,900
Commercial loans | Commercial owner occupied real estate loan | 60 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 1,380 | 840
Commercial loans | Commercial owner occupied real estate loan | 90 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 894 |
Commercial loans | Commercial owner occupied real estate loan | Total Past Due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 13,535 | 3,740
Commercial loans | Commercial owner occupied real estate loan | Current |  |
Loans and Allowance for Loan Losses |  |
Total loans | 4,955,348 | 4,802,898
Commercial loans | Consumer Owner Occupied Loans |  |
Loans and Allowance for Loan Losses |  |
Total loans | 34,543 | 35,137
Commercial loans | Commercial and industrial |  |
Loans and Allowance for Loan Losses |  |
Total loans | 3,959,726 | 5,046,310
Commercial loans | Other income producing property |  |
Loans and Allowance for Loan Losses |  |
Total loans | 678,460 | 760,183
Commercial loans | Other loans |  |
Loans and Allowance for Loan Losses |  |
Total loans | 30,798 | 17,993
Consumer portfolio loans |  |
Loans and Allowance for Loan Losses |  |
Total loans | 6,360,405 | 6,588,058
Consumer portfolio loans | 30 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 8,206 | 47,904
Consumer portfolio loans | 60 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 4,482 | 7,281
Consumer portfolio loans | 90 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 13,805 | 14,549
Consumer portfolio loans | Construction and land development |  |
Loans and Allowance for Loan Losses |  |
Total loans | 664,988 | 659,336
Consumer portfolio loans | Construction and land development | 30 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 207 | 12,432
Consumer portfolio loans | Construction and land development | 60 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans |  | 720
Consumer portfolio loans | Construction and land development | 90 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 205 | 52
Consumer portfolio loans | Consumer Owner Occupied Loans |  |
Loans and Allowance for Loan Losses |  |
Total loans | 3,535,248 | 3,647,530
Consumer portfolio loans | Consumer Owner Occupied Loans | 30 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 4,238 | 30,020
Consumer portfolio loans | Consumer Owner Occupied Loans | 60 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 2,146 | 4,871
Consumer portfolio loans | Consumer Owner Occupied Loans | 90 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 8,564 | 7,563
Consumer portfolio loans | Home equity loans |  |
Loans and Allowance for Loan Losses |  |
Total loans | 1,163,776 | 1,292,141
Consumer portfolio loans | Home equity loans | 30 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 2,184 | 2,861
Consumer portfolio loans | Home equity loans | 60 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 998 | 534
Consumer portfolio loans | Home equity loans | 90 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 2,587 | 4,123
Consumer portfolio loans | Other income producing property |  |
Loans and Allowance for Loan Losses |  |
Total loans | 83,948 | 94,717
Consumer portfolio loans | Other income producing property | 30 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 17 | 240
Consumer portfolio loans | Other income producing property | 60 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 109 | 331
Consumer portfolio loans | Other income producing property | 90 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 919 | 223
Consumer portfolio loans | Consumer loans |  |
Loans and Allowance for Loan Losses |  |
Total loans | 912,445 | 894,334
Consumer portfolio loans | Consumer loans | 30 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 1,560 | 2,351
Consumer portfolio loans | Consumer loans | 60 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 1,229 | 825
Consumer portfolio loans | Consumer loans | 90 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | $ 1,530 | $ 2,588

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