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Provisions (Details Narrative) - PEN (S/) S/ in Thousands | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | --- | ---
Disclosure of other provisions [line items] |  |  |
Other provisions | S/ 52,868 | S/ 53,753 | S/ 61,518
Worker' Profit-Sharing [Member] |  |  |
Disclosure of other provisions [line items] |  |  |
Percentage of distributions based on number of days working in preceding year | 50.00% |  |
Percentage of proportionate annual salary levels | 50.00% |  |
Other provisions | S/ 20,147 | 17,018 | 21,273
Worker' Profit-Sharing [Member] | Bottom of Range [Member] |  |  |
Disclosure of other provisions [line items] |  |  |
Percentage of employee profit sharing plan | 8.00% |  |
Worker' Profit-Sharing [Member] | Top of Range [Member] |  |  |
Disclosure of other provisions [line items] |  |  |
Percentage of employee profit sharing plan | 10.00% |  |
Long-term Incentive Plan [Member] |  |  |
Disclosure of other provisions [line items] |  |  |
Other provisions | S/ 30,322 | 34,368 | 36,906
Rehabilitation Provision [Member] |  |  |
Disclosure of other provisions [line items] |  |  |
Other provisions | S/ 2,399 | S/ 2,367 | S/ 3,339
Rehabilitation Provision [Member] | Bottom of Range [Member] |  |  |
Disclosure of other provisions [line items] |  |  |
Percentage of present value of provision | 6.52% |  |
Rehabilitation Provision [Member] | Top of Range [Member] |  |  |
Disclosure of other provisions [line items] |  |  |
Percentage of present value of provision | 7.65% |  |

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- Definition The amount of provisions other than provisions for employee benefits. [Refer: Provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2017-01-01 -Paragraph 84 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=37&date=2017-03-01&anchor=para_84_a&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 78 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_78_d&doctype=Standard -URIDate 2017-03-09 + Details
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