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Other, net | 12 Months Ended
--- | ---
Dec. 31, 2018
Disclosure of Other net [Abstract] |
Disclosure of other operating income (expense) [text block] |
| 26. | Other, net
| (a) | This caption is made up as follows:
|  | 2018 |  |  | 2017 |  |  | 2016 |
|  | US$(000) |  |  | US$(000) |  |  | US$(000) |
Other income |  |  |  |  |  |  |  |  |  |  |  |
Insurance claim recovery, note 7(g) |  |  | 33,735 |  |  |  | 1,190 |  |  |  | 2,936 |
Sale of supplies and merchandise to third parties |  |  | 46,136 |  |  |  | 54,505 |  |  |  | 50,973 |
Sale of investment in subsidiary, note 1(d) |  |  | 7,097 |  |  |  | - |  |  |  | - |
Changes in provisions for exploration projects, note 15(b) |  |  | 2,433 |  |  |  | - |  |  |  | - |
Sale of assets to third parties |  |  | 3,863 |  |  |  | 369 |  |  |  | 21,730 |
Sale of services to third parties |  |  | 3,512 |  |  |  | 2,566 |  |  |  | 1,840 |
Income from previous years |  |  | 1,517 |  |  |  | 2,737 |  |  |  | 1,086 |
Recovery of expenses from previous years |  |  | 81 |  |  |  | 68 |  |  |  | 3,171 |
Income from rental of investment properties |  |  | 45 |  |  |  | 235 |  |  |  | 1,821 |
Expiration of allowance for expected credit losses, note 7(f) |  |  | 45 |  |  |  | 99 |  |  |  | - |
Sale of assets to related parties, note 30(a) |  |  | 30 |  |  |  | 336 |  |  |  | - |
Sale of supplies related parties, note 30(a) |  |  | 27 |  |  |  | 4 |  |  |  | 1 |
Sale of investment properties (b) |  |  | - |  |  |  | 11,250 |  |  |  | - |
Recovery of provision for depreciation of supplies, note 8(c) |  |  | - |  |  |  | - |  |  |  | 110 |
Other minor income |  |  | 4,099 |  |  |  | 14,469 |  |  |  | 11,639 |
|  |  | 102,620 |  |  |  | 87,828 |  |  |  | 95,307 |
Other expenses |  |  |  |  |  |  |  |  |  |  |  |
Disposal cost of sale of supplies and merchandise to third parties |  |  | (57,897 | ) |  |  | (60,242 | ) |  |  | (49,890 | )
Net cost of transfer of investments, note 1(d) |  |  | (11,178 | ) |  |  | (1,706 | ) |  |  | - |
Direct expenses |  |  | (11,000 | ) |  |  | (5,998 | ) |  |  | (4,350 | )
Provision for loss of value of supplies, note 8(c) |  |  | (7,039 | ) |  |  | (2,444 | ) |  |  | - |
Withdrawals and disposals of property, machinery and equipment, note 11(a) |  |  | (6,626 | ) |  |  | (15,013 | ) |  |  | (1,635 | )
Allowance for expected credit losses, note 7(f) |  |  | (1,334 | ) |  |  | - |  |  |  | - |
Net cost of property, machinery and equipment to third parties |  |  | (626 | ) |  |  | - |  |  |  | (2,131 | )
Net cost of investment properties (b) |  |  | - |  |  |  | (9,575 | ) |  |  | - |
Changes in provision for exploration projects, note 15(b) |  |  | - |  |  |  | (891 | ) |  |  | - |
Other minor expenses |  |  | (11,932 | ) |  |  | (5,548 | ) |  |  | (18,344 | )
|  |  | (107,632 | ) |  |  | (101,417 | ) |  |  | (76,350 | )
|  |  | (5,012 | ) |  |  | (13,589 | ) |  |  | 18,957 |
| (b) | During 2017 the subsidiary Buenaventura Ingenieros S.A. (hereinafter "BISA") sold to a third party its investment properties located in the El Derby Capital Building, district of Surco.

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- Definition The disclosure of other operating income or expense. [Refer: Other operating income (expense)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 10 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_10_e&doctype=Standard -URIDate 2018-03-16 + Details
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