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Provisions and other non-financial liabilities (Tables) | 12 Months Ended
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Dec. 31, 2017
Disclosure of other provisions [abstract] |
Disclosure of detailed information about provisions [Text Block] |
18.1 | Types of provisions
|  | 12/31/2017 |  | 12/31/2016 |
|  | Current |  | Non- current |  | Total |  | Current |  | Non- current |  | Total |
|  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |
Provision for legal complaints (*) |  | 16,419 |  | 3,000 |  | 19,419 |  | 20,867 |  | 3,000 |  | 23,867 |
Provision for dismantling, restoration and rehabilitation cost (**) |  | - |  | 26,954 |  | 26,954 |  | - |  | 5,890 |  | 5,890 |
Other provisions(***) |  | 47,026 |  | 47 |  | 47,073 |  | 21,045 |  | 44 |  | 21,089 |
Total |  | 63,445 |  | 30,001 |  | 93,446 |  | 41,912 |  | 8,934 |  | 50,846 |
(*) These provisions correspond to legal processes that are pending resolution or that have not yet been disbursed. These provisions are mainly related to litigation involving the subsidiaries located in Chile, Brazil and the United States (see note 19.1). (**) The commitments related to Senageomin have been incorporated through the issuance of the guarantee for the restoration of the place where the production sites are located. (***)See Note 18.2
Description of detailed information about other current and noncurrent provision [Text Block] |
18.2 | Description of other provisions
Current provisions, other short-term provisions |  |  | 12/31/2017 |  |  | 12/31/2016 |
|  |  | ThUS$ |  |  | ThUS$ |
Provision for tax loss in fiscal litigation |  |  | 739 |  |  | 750 |
Rent under Lease contract with CORFO(*) |  |  | 32,331 |  |  | 11,452 |
Provision for additional tax related to foreign loans |  |  | 416 |  |  | 450 |
End of agreement bonus |  |  | 4,522 |  |  | 5,365 |
Directors’ per diem allowance |  |  | 2,630 |  |  | 1,918 |
Provision for subsidiary restructuring |  |  | 6,000 |  |  | - |
Miscellaneous provisions |  |  | 388 |  |  | 1,110 |
Total |  |  | 47,026 |  |  | 21,045 |
Other long-term provisions |  |  |  |  |  |  |
Investments with negative equity |  |  | 47 |  |  | 44 |
Total |  |  | 47 |  |  | 44 |
Disclosure of maturity analysis about minimum lease payments under non cancellable operating lease [Text Block] | The following are the payment commitments that remain in effect for with CORFO lease:
|  |  | 12/31/2017 |  |  | 12/31/2016 |
|  |  | ThUS$ |  |  | ThUS$ |
Commitments for minimum lease payments in relation to non-cancelable operating leases are payable as follows: |  |  |  |  |  |  |
Within one year |  |  | 5,474 |  |  | 2,546 |
Later than one year but not later than three years |  |  | 10,949 |  |  | 5,092 |
Later than tree year but not later than five years |  |  | 10,949 |  |  | 5,092 |
More than five years |  |  | 49,271 |  |  | 22,913 |
Total |  |  | 76,643 |  |  | 35,643 |
Disclosure of other current liabilities [text block] |
18.3 | Other current liabilities
These amounts are paid on a quarterly basis. Other liabilities non-financial current
Description of other liabilities |  |  | 12/31/2017 |  |  | 12/31/2016 |
|  |  | ThUS$ |  |  | ThUS$ |
Tax withholdings |  |  | 7,404 |  |  | 14,340 |
VAT payable |  |  | 3,344 |  |  | 3,949 |
Guarantees received |  |  | 2,638 |  |  | 2,638 |
Accrual for dividend |  |  | 110,529 |  |  | 1,189 |
Monthly tax provisional payments |  |  | 11,684 |  |  | 9,545 |
Deferred income |  |  | 5,301 |  |  | 6,507 |
Withholdings from employees and salaries payable |  |  | 6,725 |  |  | 5,552 |
Accrued vacations (*) |  |  | 19,042 |  |  | 15,841 |
Other current liabilities |  |  | 2,137 |  |  | 2,359 |
Total |  |  | 168,804 |  |  | 61,920 |
Disclosure of reconciliation of changes in other provisions [Text Block] | 18.4 Changes in provisions
Description of items that gave rise to variations as of December 31, 2017 |  | Legal complaints |  | Provision for dismantling, restoration and rehabilitation cost |  | Other provisions |  | Total |
|  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |
Total provisions, initial balance |  | 23,867 |  | 5,890 |  | 21,089 |  | 50,846 |
Changes in provisions: |  |  |  |  |  |  |  |  |
Additional provisions |  | 6,352 |  | 21,064 |  | 33,507 |  | 60,923 |
Provision used |  | (10,800) |  | - |  | (7,538) |  | (18,338) |
Increase(decrease) in foreign currency exchange |  | - |  | - |  | 9 |  | 9 |
others |  | - |  | - |  | 6 |  | 6 |
Total provisions, final balance |  | 19,419 |  | 26,954 |  | 47,073 |  | 93,446 |
Description of items that gave rise to variations as of December 31, 2016 |  | Legal complaints |  | Provision for dismantling, restoration and rehabilitation cost |  | Other provisions |  | Total |
|  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |
Total provisions, initial balance |  | 21,067 |  | 5,890 |  | 13,445 |  | 40,402 |
Changes in provisions: |  |  |  |  |  |  |  |  |
Additional provisions |  | 2,800 |  | - |  | 54,310 |  | 57,110 |
Provision used |  | - |  | - |  | (47,261) |  | (47,261) |
Increase(decrease) in foreign currency exchange |  | - |  | - |  | 128 |  | 128 |
Others |  | - |  | - |  | 467 |  | 467 |
Total provisions, final balance |  | 23,867 |  | 5,890 |  | 21,089 |  | 50,846 |
|  |  |  |  |  |  |  | 12/31/2015 |  |  |
Description of items that gave rise to variations |  | Restructuring |  | Legal complaints |  | Provision for dismantling, restoration and rehabilitation cost |  | Other provisions |  | Total |
|  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |  | ThUS$ |
Total provisions, initial balance |  | - |  | 22,567 |  | 5,890 |  | 8,180 |  | 36,637 |
Changes in provisions: |  |  |  |  |  |  |  |  |  |  |
Additional provisions |  | 16,327 |  | 8,500 |  | - |  | 14,733 |  | 39,560 |
Provision used |  | (16,327) |  | (10,000) |  | - |  | (9,111) |  | (35,438) |
Increase(decrease) in foreign currency exchange |  | - |  | - |  | - |  | (357) |  | (357) |
Total provisions, final balance |  | - |  | 21,067 |  | 5,890 |  | 13,445 |  | 40,402 |

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