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Loans - Summary of loans (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
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Summary of Loans |  |
Total loans | $ 24,491,465 | $ 24,664,134
Less allowance for credit losses | (406,460) | (457,309)
Loans, net | 24,085,005 | 24,206,825
Deferred fees | 27,700 |
Unamortized Discounts | 87,300 |
Accrued interest receivable (AIR) | 89,500 |
Construction and land development |  |
Summary of Loans |  |
Total loans | 1,888,901 | 1,899,066
Consumer Owner Occupied Loans |  |
Summary of Loans |  |
Total loans | 4,026,509 | 4,108,042
Other income producing property |  |
Summary of Loans |  |
Total loans | 563,127 | 587,448
Other loans |  |
Summary of Loans |  |
Total loans | 5,186 | 17,993
Commercial loans |  |
Summary of Loans |  |
Total loans | 17,691,901 | 17,657,996
Commercial loans | Construction and land development |  |
Summary of Loans |  |
Total loans | 1,289,757 | 1,238,265
Commercial loans | Commercial non-owner occupied |  |
Summary of Loans |  |
Total loans | 5,926,453 | 5,931,323
Commercial loans | Commercial non-owner occupied real estate |  |
Summary of Loans |  |
Total loans | 4,826,651 | 4,842,092
Commercial loans | Consumer Owner Occupied Loans |  |
Summary of Loans |  |
Total loans | 33,938 | 35,137
Commercial loans | Commercial owner occupied real estate loan |  |
Summary of Loans |  |
Total loans | 4,826,651 | 4,842,092
Commercial loans | Commercial and industrial |  |
Summary of Loans |  |
Total loans | 5,087,416 | 5,047,147
Commercial loans | Other income producing property |  |
Summary of Loans |  |
Total loans | 522,500 | 546,039
Commercial loans | Other loans |  |
Summary of Loans |  |
Total loans | 5,186 | 17,993
Consumer |  |
Summary of Loans |  |
Total loans | 6,799,564 | 7,006,138
Consumer | Construction and land development |  |
Summary of Loans |  |
Total loans | 599,144 | 660,801
Consumer | Consumer Owner Occupied Loans |  |
Summary of Loans |  |
Total loans | 3,992,571 | 4,072,905
Consumer | Home equity loans |  |
Summary of Loans |  |
Total loans | 1,287,088 | 1,336,689
Consumer | Other income producing property |  |
Summary of Loans |  |
Total loans | 40,627 | 41,409
Consumer | Consumer |  |
Summary of Loans |  |
Total loans | $ 880,134 | $ 894,334

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