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Allowance for Loan Losses | 3 Months Ended
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Mar. 31, 2018
Receivables [Abstract] |
Allowance for Loan Losses | Allowance for Loan Losses (In Thousands) The following is a summary of total non purchased and purchased loans as of the dates presented:
| March 31, 2018 |  | December 31, 2017
Commercial, financial, agricultural | $ | 1,046,818 |  |  | $ | 1,039,393 |
Lease financing | 55,898 |  |  | 57,354 |
Real estate – construction | 657,491 |  |  | 633,389 |
Real estate – 1-4 family mortgage | 2,358,101 |  |  | 2,343,721 |
Real estate – commercial mortgage | 3,463,953 |  |  | 3,427,530 |
Installment loans to individuals | 119,171 |  |  | 122,276 |
Gross loans | 7,701,432 |  |  | 7,623,663 |
Unearned income | (3,362 | ) |  | (3,341 | )
Loans, net of unearned income | 7,698,070 |  |  | 7,620,322 |
Allowance for loan losses | (46,401 | ) |  | (46,211 | )
Net loans | $ | 7,651,669 |  |  | $ | 7,574,111 |
Allowance for Loan Losses The allowance for loan losses is maintained at a level believed adequate by management based on its ongoing analysis of the loan portfolio to absorb probable credit losses inherent in the entire loan portfolio, including collective impairment as recognized under ASC 450, “Contingencies”. Collective impairment is calculated based on loans grouped by grade. Another component of the allowance is losses on loans assessed as impaired under ASC 310. The balance of these loans and their related allowance is included in management’s estimation and analysis of the allowance for loan losses. Management and the internal loan review staff evaluate the adequacy of the allowance for loan losses quarterly. The allowance for loan losses is evaluated based on a continuing assessment of problem loans, the types of loans, historical loss experience, new lending products, emerging credit trends, changes in the size and character of loan categories and other factors, including its risk rating system, regulatory guidance and economic conditions. This evaluation is inherently subjective, as it requires estimates that are susceptible to significant revision as more information becomes available. The allowance for loan losses is established through a provision for loan losses charged to earnings resulting from measurements of inherent credit risk in the loan portfolio and estimates of probable losses or impairments of individual loans. Loan losses are charged against the allowance when management believes the uncollectability of a loan balance is confirmed. Subsequent recoveries, if any, are credited to the allowance. The following table provides a roll forward of the allowance for loan losses and a breakdown of the ending balance of the allowance based on the Company’s impairment methodology for the periods presented:
| Commercial |  | Real Estate - Construction |  | Real Estate - 1-4 Family Mortgage |  | Real Estate - Commercial Mortgage |  | Installment and Other(1) |  | Total
Three Months Ended March 31, 2018 |  |  |  |  |  |  |  |  |  |  |
Allowance for loan losses: |  |  |  |  |  |  |  |  |  |  |
Beginning balance | $ | 5,542 |  |  | $ | 3,428 |  |  | $ | 12,009 |  |  | $ | 23,384 |  |  | $ | 1,848 |  |  | $ | 46,211 |
Charge-offs | (659 | ) |  | — |  |  | (671 | ) |  | (613 | ) |  | (122 | ) |  | (2,065 | )
Recoveries | 235 |  |  | 4 |  |  | 133 |  |  | 108 |  |  | 25 |  |  | 505 |
Net (charge-offs) recoveries | (424 | ) |  | 4 |  |  | (538 | ) |  | (505 | ) |  | (97 | ) |  | (1,560 | )
Provision for loan losses charged to operations | 1,953 |  |  | 766 |  |  | (67 | ) |  | (965 | ) |  | 63 |  |  | 1,750 |
Ending balance | $ | 7,071 |  |  | $ | 4,198 |  |  | $ | 11,404 |  |  | $ | 21,914 |  |  | $ | 1,814 |  |  | $ | 46,401 |
Period-End Amount Allocated to: |  |  |  |  |  |  |  |  |  |  |
Individually evaluated for impairment | $ | 272 |  |  | $ | 1 |  |  | $ | 168 |  |  | $ | 1,026 |  |  | $ | 5 |  |  | $ | 1,472 |
Collectively evaluated for impairment | 6,494 |  |  | 4,197 |  |  | 10,750 |  |  | 19,865 |  |  | 1,806 |  |  | 43,112 |
Purchased with deteriorated credit quality | 305 |  |  | — |  |  | 486 |  |  | 1,023 |  |  | 3 |  |  | 1,817 |
Ending balance | $ | 7,071 |  |  | $ | 4,198 |  |  | $ | 11,404 |  |  | $ | 21,914 |  |  | $ | 1,814 |  |  | $ | 46,401 |
| Commercial |  | Real Estate - Construction |  | Real Estate - 1-4 Family Mortgage |  | Real Estate - Commercial Mortgage |  | Installment and Other(1) |  | Total
Three Months Ended March 31, 2017 |  |  |  |  |  |  |  |  |  |  |
Allowance for loan losses: |  |  |  |  |  |  |  |  |  |  |
Beginning balance | $ | 5,486 |  |  | $ | 2,380 |  |  | $ | 14,294 |  |  | $ | 19,059 |  |  | $ | 1,518 |  |  | $ | 42,737 |
Charge-offs | (832 | ) |  | — |  |  | (275 | ) |  | (227 | ) |  | (264 | ) |  | (1,598 | )
Recoveries | 57 |  |  | 31 |  |  | 82 |  |  | 95 |  |  | 19 |  |  | 284 |
Net (charge-offs) recoveries | (775 | ) |  | 31 |  |  | (193 | ) |  | (132 | ) |  | (245 | ) |  | (1,314 | )
Provision for loan losses charged to operations | 401 |  |  | (292 | ) |  | (1,939 | ) |  | 3,146 |  |  | 184 |  |  | 1,500 |
Ending balance | $ | 5,112 |  |  | $ | 2,119 |  |  | $ | 12,162 |  |  | $ | 22,073 |  |  | $ | 1,457 |  |  | $ | 42,923 |
Period-End Amount Allocated to: |  |  |  |  |  |  |  |  |  |  |
Individually evaluated for impairment | $ | 165 |  |  | $ | — |  |  | $ | 1,139 |  |  | $ | 2,670 |  |  | $ | 3 |  |  | $ | 3,977 |
Collectively evaluated for impairment | 4,569 |  |  | 2,119 |  |  | 10,256 |  |  | 17,830 |  |  | 1,453 |  |  | 36,227 |
Purchased with deteriorated credit quality | 378 |  |  | — |  |  | 767 |  |  | 1,573 |  |  | 1 |  |  | 2,719 |
Ending balance | $ | 5,112 |  |  | $ | 2,119 |  |  | $ | 12,162 |  |  | $ | 22,073 |  |  | $ | 1,457 |  |  | $ | 42,923 |
(1) | Includes lease financing receivables.
The following table provides the recorded investment in loans, net of unearned income, based on the Company’s impairment methodology as of the dates presented:
| Commercial |  | Real Estate - Construction |  | Real Estate - 1-4 Family Mortgage |  | Real Estate - Commercial Mortgage |  | Installment and Other(1) |  | Total
March 31, 2018 |  |  |  |  |  |  |  |  |  |  |
Individually evaluated for impairment | $ | 2,848 |  |  | $ | 399 |  |  | $ | 13,737 |  |  | $ | 7,802 |  |  | $ | 420 |  |  | $ | 25,206 |
Collectively evaluated for impairment | 1,031,037 |  |  | 657,092 |  |  | 2,294,168 |  |  | 3,306,604 |  |  | 169,653 |  |  | 7,458,554 |
Purchased with deteriorated credit quality | 12,933 |  |  | — |  |  | 50,196 |  |  | 149,547 |  |  | 1,634 |  |  | 214,310 |
Ending balance | $ | 1,046,818 |  |  | $ | 657,491 |  |  | $ | 2,358,101 |  |  | $ | 3,463,953 |  |  | $ | 171,707 |  |  | $ | 7,698,070 |
December 31, 2017 |  |  |  |  |  |  |  |  |  |  |
Individually evaluated for impairment | $ | 3,064 |  |  | $ | 1,777 |  |  | $ | 14,482 |  |  | $ | 10,545 |  |  | $ | 439 |  |  | $ | 30,307 |
Collectively evaluated for impairment | 1,021,014 |  |  | 631,612 |  |  | 2,275,270 |  |  | 3,260,648 |  |  | 174,211 |  |  | 7,362,755 |
Purchased with deteriorated credit quality | 15,315 |  |  | — |  |  | 53,969 |  |  | 156,337 |  |  | 1,639 |  |  | 227,260 |
Ending balance | $ | 1,039,393 |  |  | $ | 633,389 |  |  | $ | 2,343,721 |  |  | $ | 3,427,530 |  |  | $ | 176,289 |  |  | $ | 7,620,322 |
(1) | Includes lease financing receivables.

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- Definition The entire disclosure for allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -URI http://asc.fasb.org/topic&trid=2196771 + Details
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- References No definition available. + Details
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