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Non Purchased Loans (Details 5) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Loan portfolio by risk-rating grades |  |
Total | $ 6,202,709 | $ 5,413,462
Commercial, financial, agricultural |  |
Loan portfolio by risk-rating grades |  |
Total | 717,490 | 636,837
Real estate – construction |  |
Loan portfolio by risk-rating grades |  |
Total | 552,679 | 357,665
Real estate – 1-4 family mortgage |  |
Loan portfolio by risk-rating grades |  |
Total | 1,878,177 | 1,735,323
Real estate – commercial mortgage |  |
Loan portfolio by risk-rating grades |  |
Total | 2,898,895 | 2,533,729
Installment loans to individuals |  |
Loan portfolio by risk-rating grades |  |
Total | 155,468 | 149,908
Non-Purchased |  |
Loan portfolio by risk-rating grades |  |
Total | 4,713,572 | 3,830,434
Non-Purchased | Internal Noninvestment Grade |  |
Loan portfolio by risk-rating grades |  |
Total | 2,808,367 | 2,172,918
Non-Purchased | Pass |  |
Loan portfolio by risk-rating grades |  |
Total | 2,761,884 | 2,105,637
Non-Purchased | Watch |  |
Loan portfolio by risk-rating grades |  |
Total | 26,416 | 35,934
Non-Purchased | Substandard |  |
Loan portfolio by risk-rating grades |  |
Total | 20,067 | 31,347
Non-Purchased | Commercial, financial, agricultural | Internal Noninvestment Grade |  |
Loan portfolio by risk-rating grades |  |
Total | 439,704 | 345,419
Non-Purchased | Commercial, financial, agricultural | Pass |  |
Loan portfolio by risk-rating grades |  |
Total | 434,323 | 336,583
Non-Purchased | Commercial, financial, agricultural | Watch |  |
Loan portfolio by risk-rating grades |  |
Total | 4,531 | 8,146
Non-Purchased | Commercial, financial, agricultural | Substandard |  |
Loan portfolio by risk-rating grades |  |
Total | 850 | 690
Non-Purchased | Real estate – construction | Internal Noninvestment Grade |  |
Loan portfolio by risk-rating grades |  |
Total | 402,549 | 224,445
Non-Purchased | Real estate – construction | Pass |  |
Loan portfolio by risk-rating grades |  |
Total | 402,156 | 223,962
Non-Purchased | Real estate – construction | Watch |  |
Loan portfolio by risk-rating grades |  |
Total | 393 | 483
Non-Purchased | Real estate – construction | Substandard |  |
Loan portfolio by risk-rating grades |  |
Total | 0 | 0
Non-Purchased | Real estate – 1-4 family mortgage | Internal Noninvestment Grade |  |
Loan portfolio by risk-rating grades |  |
Total | 200,385 | 155,703
Non-Purchased | Real estate – 1-4 family mortgage | Pass |  |
Loan portfolio by risk-rating grades |  |
Total | 190,882 | 138,852
Non-Purchased | Real estate – 1-4 family mortgage | Watch |  |
Loan portfolio by risk-rating grades |  |
Total | 3,374 | 5,163
Non-Purchased | Real estate – 1-4 family mortgage | Substandard |  |
Loan portfolio by risk-rating grades |  |
Total | 6,129 | 11,688
Non-Purchased | Real estate – commercial mortgage | Internal Noninvestment Grade |  |
Loan portfolio by risk-rating grades |  |
Total | 1,765,729 | 1,447,294
Non-Purchased | Real estate – commercial mortgage | Pass |  |
Loan portfolio by risk-rating grades |  |
Total | 1,734,523 | 1,406,188
Non-Purchased | Real estate – commercial mortgage | Watch |  |
Loan portfolio by risk-rating grades |  |
Total | 18,118 | 22,142
Non-Purchased | Real estate – commercial mortgage | Substandard |  |
Loan portfolio by risk-rating grades |  |
Total | 13,088 | 18,964
Non-Purchased | Installment loans to individuals | Internal Noninvestment Grade |  |
Loan portfolio by risk-rating grades |  |
Total | 0 | 57
Non-Purchased | Installment loans to individuals | Pass |  |
Loan portfolio by risk-rating grades |  |
Total | 0 | 52
Non-Purchased | Installment loans to individuals | Watch |  |
Loan portfolio by risk-rating grades |  |
Total | 0 | 0
Non-Purchased | Installment loans to individuals | Substandard |  |
Loan portfolio by risk-rating grades |  |
Total | $ 0 | $ 5

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