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Purchased Loans (Details 6) - USD ($) $ in Thousands | Mar. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Loan portfolio not subject to risk rating |  |
Total | $ 6,235,805 | $ 6,202,709
Commercial, financial, agricultural |  |
Loan portfolio not subject to risk rating |  |
Total | 741,466 | 717,490
Real estate – construction |  |
Loan portfolio not subject to risk rating |  |
Total | 413,734 | 552,679
Real estate – 1-4 family mortgage |  |
Loan portfolio not subject to risk rating |  |
Total | 1,917,567 | 1,878,177
Real estate – commercial mortgage |  |
Loan portfolio not subject to risk rating |  |
Total | 3,008,429 | 2,898,895
Installment loans to individuals |  |
Loan portfolio not subject to risk rating |  |
Total | 154,609 | 155,468
Purchased loans |  |
Loan portfolio not subject to risk rating |  |
Total | 1,401,720 | 1,489,137
Purchased loans | Performing and Nonperforming |  |
Loan portfolio not subject to risk rating |  |
Total | 299,420 | 316,127
Purchased loans | Performing |  |
Loan portfolio not subject to risk rating |  |
Total | 297,350 | 313,852
Purchased loans | Non-Performing |  |
Loan portfolio not subject to risk rating |  |
Total | 2,070 | 2,275
Purchased loans | Commercial, financial, agricultural | Performing and Nonperforming |  |
Loan portfolio not subject to risk rating |  |
Total | 9,297 | 9,568
Purchased loans | Commercial, financial, agricultural | Performing |  |
Loan portfolio not subject to risk rating |  |
Total | 9,234 | 9,489
Purchased loans | Commercial, financial, agricultural | Non-Performing |  |
Loan portfolio not subject to risk rating |  |
Total | 63 | 79
Purchased loans | Lease financing | Performing and Nonperforming |  |
Loan portfolio not subject to risk rating |  |
Total | 0 | 0
Purchased loans | Lease financing | Performing |  |
Loan portfolio not subject to risk rating |  |
Total | 0 | 0
Purchased loans | Lease financing | Non-Performing |  |
Loan portfolio not subject to risk rating |  |
Total | 0 | 0
Purchased loans | Real estate – construction | Performing and Nonperforming |  |
Loan portfolio not subject to risk rating |  |
Total | 1,268 | 4,067
Purchased loans | Real estate – construction | Performing |  |
Loan portfolio not subject to risk rating |  |
Total | 1,268 | 3,601
Purchased loans | Real estate – construction | Non-Performing |  |
Loan portfolio not subject to risk rating |  |
Total | 0 | 466
Purchased loans | Real estate – 1-4 family mortgage | Performing and Nonperforming |  |
Loan portfolio not subject to risk rating |  |
Total | 254,890 | 267,201
Purchased loans | Real estate – 1-4 family mortgage | Performing |  |
Loan portfolio not subject to risk rating |  |
Total | 253,172 | 265,697
Purchased loans | Real estate – 1-4 family mortgage | Non-Performing |  |
Loan portfolio not subject to risk rating |  |
Total | 1,718 | 1,504
Purchased loans | Real estate – commercial mortgage | Performing and Nonperforming |  |
Loan portfolio not subject to risk rating |  |
Total | 21,772 | 21,411
Purchased loans | Real estate – commercial mortgage | Performing |  |
Loan portfolio not subject to risk rating |  |
Total | 21,715 | 21,353
Purchased loans | Real estate – commercial mortgage | Non-Performing |  |
Loan portfolio not subject to risk rating |  |
Total | 57 | 58
Purchased loans | Installment loans to individuals | Performing and Nonperforming |  |
Loan portfolio not subject to risk rating |  |
Total | 12,193 | 13,880
Purchased loans | Installment loans to individuals | Performing |  |
Loan portfolio not subject to risk rating |  |
Total | 11,961 | 13,712
Purchased loans | Installment loans to individuals | Non-Performing |  |
Loan portfolio not subject to risk rating |  |
Total | $ 232 | $ 168

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