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Loans - Summary of non-acquired loans (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | --- | ---
Summary of Loans |  |  |
Total loans | $ 24,664,134 | $ 11,375,104 |
Less allowance for credit losses | (457,309) | (56,927) |
Loans, net | 24,206,825 | 11,313,113 |
Commercial loans | Construction and land development |  |  |
Summary of Loans |  |  |
Total loans | 1,899,066 | 1,017,261 |
Commercial loans | Commercial non-owner occupied |  |  |
Summary of Loans |  |  |
Total loans | 5,931,323 | 2,323,967 |
Commercial loans | Commercial non-owner occupied real estate |  |  |
Summary of Loans |  |  |
Total loans | 4,842,092 | 2,158,701 |
Commercial loans | Commercial and industrial |  |  |
Summary of Loans |  |  |
Total loans | 5,047,147 | 1,386,327 |
Commercial loans | Other income producing property |  |  |
Summary of Loans |  |  |
Total loans | 587,448 | 346,554 |
Consumer | Consumer Owner Occupied Loans |  |  |
Summary of Loans |  |  |
Total loans | 4,108,042 | 2,706,960 |
Consumer | Home equity loans |  |  |
Summary of Loans |  |  |
Total loans | 1,336,689 | 758,020 |
Consumer | Consumer |  |  |
Summary of Loans |  |  |
Total loans | 894,334 | 663,422 |
Consumer | Other loans |  |  |
Summary of Loans |  |  |
Total loans | $ 17,993 | 13,892 |
Non-acquired loans |  |  |
Summary of Loans |  |  |
Total loans |  | 9,252,831 | $ 7,933,286
Less allowance for credit losses |  | (56,927) |
Loans, net |  | 9,195,904 |
Non-acquired loans | Construction and land development |  |  |
Summary of Loans |  |  |
Total loans |  | 968,360 | 841,445
Non-acquired loans | Commercial non-owner occupied |  |  |
Summary of Loans |  |  |
Total loans |  | 1,811,138 | 1,415,551
Non-acquired loans | Consumer Owner Occupied Loans |  |  |
Summary of Loans |  |  |
Total loans |  | 2,118,839 | 1,936,265
Non-acquired loans | Home equity loans |  |  |
Summary of Loans |  |  |
Total loans |  | 518,628 | 495,148
Non-acquired loans | Commercial owner occupied real estate loan |  |  |
Summary of Loans |  |  |
Total loans |  | 1,784,017 | 1,517,551
Non-acquired loans | Commercial and industrial |  |  |
Summary of Loans |  |  |
Total loans |  | 1,280,859 | 1,054,952
Non-acquired loans | Other income producing property |  |  |
Summary of Loans |  |  |
Total loans |  | 218,617 | 214,353
Non-acquired loans | Consumer |  |  |
Summary of Loans |  |  |
Total loans |  | 538,481 | 448,664
Non-acquired loans | Other loans |  |  |
Summary of Loans |  |  |
Total loans |  | 13,892 | $ 9,357
Non-acquired loans | Commercial loans |  |  |
Summary of Loans |  |  |
Total loans |  | 6,062,991 |
Non-acquired loans | Commercial loans | Construction and land development |  |  |
Summary of Loans |  |  |
Total loans |  | 968,360 |
Non-acquired loans | Commercial loans | Commercial non-owner occupied |  |  |
Summary of Loans |  |  |
Total loans |  | 1,811,138 |
Non-acquired loans | Commercial loans | Commercial non-owner occupied real estate |  |  |
Summary of Loans |  |  |
Total loans |  | 2,779,498 |
Non-acquired loans | Commercial loans | Commercial owner occupied real estate loan |  |  |
Summary of Loans |  |  |
Total loans |  | 1,784,017 |
Non-acquired loans | Commercial loans | Commercial and industrial |  |  |
Summary of Loans |  |  |
Total loans |  | 1,280,859 |
Non-acquired loans | Commercial loans | Other income producing property |  |  |
Summary of Loans |  |  |
Total loans |  | 218,617 |
Non-acquired loans | Consumer |  |  |
Summary of Loans |  |  |
Total loans |  | 3,189,840 |
Non-acquired loans | Consumer | Consumer Owner Occupied Loans |  |  |
Summary of Loans |  |  |
Total loans |  | 2,118,839 |
Non-acquired loans | Consumer | Home equity loans |  |  |
Summary of Loans |  |  |
Total loans |  | 518,628 |
Non-acquired loans | Consumer | Real estate |  |  |
Summary of Loans |  |  |
Total loans |  | 2,637,467 |
Non-acquired loans | Consumer | Consumer |  |  |
Summary of Loans |  |  |
Total loans |  | 538,481 |
Non-acquired loans | Consumer | Other loans |  |  |
Summary of Loans |  |  |
Total loans |  | $ 13,892 |

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