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Loans - Aging analysis of past due loans (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Loans and Allowance for Loan Losses |  |
Non-Accruing | $ 75,418 | $ 95,188
Total loans | 23,928,166 | 24,664,134
30 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 68,136 | 20,185
60 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 33,250 | 29,380
90 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 4,863 | 11,651
Total Past Due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 106,249 | 61,216
Current |  |
Loans and Allowance for Loan Losses |  |
Total loans | 23,746,499 | 24,507,730
Non-acquired loans |  |
Loans and Allowance for Loan Losses |  |
Total loans | 16,050,775 | 12,289,456
Construction and land development |  |
Loans and Allowance for Loan Losses |  |
Non-Accruing | 1,567 | 2,421
Total loans | 2,029,216 | 1,890,846
Construction and land development | 30 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 1,176 | 520
Construction and land development | 60 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 59 | 1,142
Construction and land development | 90 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 43 |
Construction and land development | Total Past Due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 1,278 | 1,662
Construction and land development | Current |  |
Loans and Allowance for Loan Losses |  |
Total loans | 2,026,371 | 1,886,763
Commercial non-owner occupied |  |
Loans and Allowance for Loan Losses |  |
Non-Accruing | 19,909 | 5,470
Total loans | 6,735,699 | 6,152,246
Commercial non-owner occupied | 30 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 3,591 | 188
Commercial non-owner occupied | 60 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 2,110 | 372
Commercial non-owner occupied | 90 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 96 | 471
Commercial non-owner occupied | Total Past Due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 5,797 | 1,031
Commercial non-owner occupied | Current |  |
Loans and Allowance for Loan Losses |  |
Total loans | 6,709,993 | 6,145,745
Commercial owner occupied real estate loan |  |
Loans and Allowance for Loan Losses |  |
Non-Accruing | 14,532 | 26,059
Total loans | 4,970,116 | 4,832,697
Commercial owner occupied real estate loan | 30 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 2,756 | 2,900
Commercial owner occupied real estate loan | 60 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 1,732 | 840
Commercial owner occupied real estate loan | 90 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 626 |
Commercial owner occupied real estate loan | Total Past Due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 5,114 | 3,740
Commercial owner occupied real estate loan | Current |  |
Loans and Allowance for Loan Losses |  |
Total loans | 4,950,470 | 4,802,898
Consumer Owner Occupied Loans |  |
Loans and Allowance for Loan Losses |  |
Non-Accruing | 18,183 | 28,477
Total loans | 3,638,364 | 3,682,667
Consumer Owner Occupied Loans | 30 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 4,046 | 1,165
Consumer Owner Occupied Loans | 60 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 533 | 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 | 4,579 | 4,493
Consumer Owner Occupied Loans | Current |  |
Loans and Allowance for Loan Losses |  |
Total loans | 3,615,602 | 3,649,697
Home equity loans |  |
Loans and Allowance for Loan Losses |  |
Non-Accruing | 6,255 | 9,926
Total loans | 1,168,594 | 1,292,141
Home equity loans | 30 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 2,565 | 1,805
Home equity loans | 60 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 913 | 481
Home equity loans | Total Past Due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 3,478 | 2,286
Home equity loans | Current |  |
Loans and Allowance for Loan Losses |  |
Total loans | 1,158,861 | 1,279,929
Commercial and industrial |  |
Loans and Allowance for Loan Losses |  |
Non-Accruing | 7,441 | 9,218
Total loans | 3,761,133 | 5,046,310
Commercial and industrial | 30 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 50,451 | 10,979
Commercial and industrial | 60 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 26,639 | 22,089
Commercial and industrial | 90 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 3,991 | 10,864
Commercial and industrial | Total Past Due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 81,081 | 43,932
Commercial and industrial | Current |  |
Loans and Allowance for Loan Losses |  |
Total loans | 3,672,611 | 4,993,160
Other income producing property |  |
Loans and Allowance for Loan Losses |  |
Non-Accruing | 4,075 | 7,543
Total loans | 696,804 | 854,900
Other income producing property | 30 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 879 | 897
Other income producing property | 60 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 424 | 338
Other income producing property | 90 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 106 | 278
Other income producing property | Total Past Due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 1,409 | 1,513
Other income producing property | Current |  |
Loans and Allowance for Loan Losses |  |
Total loans | 691,320 | 845,844
Consumer loans |  |
Loans and Allowance for Loan Losses |  |
Non-Accruing | 3,456 | 6,074
Total loans | 904,657 | 894,334
Consumer loans | 30 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 2,672 | 1,718
Consumer loans | 60 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 840 | 818
Consumer loans | 90 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 1 | 4
Consumer loans | Total Past Due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 3,513 | 2,540
Consumer loans | Current |  |
Loans and Allowance for Loan Losses |  |
Total loans | 897,688 | 885,720
Other loans |  |
Loans and Allowance for Loan Losses |  |
Total loans | 23,583 | 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 | 23,583 | 17,974
Commercial loans |  |
Loans and Allowance for Loan Losses |  |
Total loans | 17,476,982 | 18,076,076
Commercial loans | Construction and land development |  |
Loans and Allowance for Loan Losses |  |
Total loans | 1,342,755 | 1,231,510
Commercial loans | Commercial non-owner occupied |  |
Loans and Allowance for Loan Losses |  |
Total loans | 6,735,699 | 6,152,246
Commercial loans | Commercial owner occupied real estate loan |  |
Loans and Allowance for Loan Losses |  |
Total loans | 4,970,116 | 4,832,697
Commercial loans | Consumer Owner Occupied Loans |  |
Loans and Allowance for Loan Losses |  |
Total loans | 30,043 | 35,137
Commercial loans | Commercial and industrial |  |
Loans and Allowance for Loan Losses |  |
Total loans | 3,761,133 | 5,046,310
Commercial loans | Other income producing property |  |
Loans and Allowance for Loan Losses |  |
Total loans | 613,653 | 760,183
Commercial loans | Other loans |  |
Loans and Allowance for Loan Losses |  |
Total loans | 23,583 | 17,993
Consumer portfolio loans |  |
Loans and Allowance for Loan Losses |  |
Total loans | 6,451,184 | 6,588,058
Consumer portfolio loans | 30 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 10,878 | 47,904
Consumer portfolio loans | 60 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 4,157 | 7,281
Consumer portfolio loans | 90 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 11,532 | 14,549
Consumer portfolio loans | Construction and land development |  |
Loans and Allowance for Loan Losses |  |
Total loans | 686,461 | 659,336
Consumer portfolio loans | Construction and land development | 30 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 24 | 12,432
Consumer portfolio loans | Construction and land development | 60 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 12 | 720
Consumer portfolio loans | Construction and land development | 90 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 104 | 52
Consumer portfolio loans | Consumer Owner Occupied Loans |  |
Loans and Allowance for Loan Losses |  |
Total loans | 3,608,321 | 3,647,530
Consumer portfolio loans | Consumer Owner Occupied Loans | 30 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 5,024 | 30,020
Consumer portfolio loans | Consumer Owner Occupied Loans | 60 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 1,841 | 4,871
Consumer portfolio loans | Consumer Owner Occupied Loans | 90 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 7,069 | 7,563
Consumer portfolio loans | Home equity loans |  |
Loans and Allowance for Loan Losses |  |
Total loans | 1,168,594 | 1,292,141
Consumer portfolio loans | Home equity loans | 30 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 2,909 | 2,861
Consumer portfolio loans | Home equity loans | 60 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 942 | 534
Consumer portfolio loans | Home equity loans | 90 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 2,712 | 4,123
Consumer portfolio loans | Other income producing property |  |
Loans and Allowance for Loan Losses |  |
Total loans | 83,151 | 94,717
Consumer portfolio loans | Other income producing property | 30 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 90 | 240
Consumer portfolio loans | Other income producing property | 60 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 156 | 331
Consumer portfolio loans | Other income producing property | 90 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 14 | 223
Consumer portfolio loans | Consumer loans |  |
Loans and Allowance for Loan Losses |  |
Total loans | 904,657 | 894,334
Consumer portfolio loans | Consumer loans | 30 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 2,831 | 2,351
Consumer portfolio loans | Consumer loans | 60 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | 1,206 | 825
Consumer portfolio loans | Consumer loans | 90 days past due |  |
Loans and Allowance for Loan Losses |  |
Total loans | $ 1,633 | $ 2,588

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