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Financial risk management (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Time deposits [Member] | Financial Assets Neither Past Due Nor Impaired Total [Member] |  |
Financial risk management [Line Items] |  |
Financial assets | $ 261,973 |
Time and Investment Fund Deposits Total [Member] | Financial Assets Neither Past Due Nor Impaired Total [Member] |  |
Financial risk management [Line Items] |  |
Financial assets |  | $ 476,332
90 days to 1 year [Member] | Financial Assets Neither Past Due Nor Impaired Total [Member] |  |
Financial risk management [Line Items] |  |
Financial assets | 345,459 | 485,689
No Rating [Member] | Time deposits [Member] | BBVA Banco Frances [Member] | Financial assets neither past due nor impaired [member] |  |
Financial risk management [Line Items] |  |
Financial assets |  | 53
No Rating [Member] | Time deposits [Member] | Other banks with lower balances [Member] | Financial assets neither past due nor impaired [member] |  |
Financial risk management [Line Items] |  |
Financial assets | 86 |
No Rating [Member] | 90 days to 1 year [Member] | Banco de Chile [Member] | Financial assets neither past due nor impaired [member] |  |
Financial risk management [Line Items] |  |
Financial assets |  | 18,026
Fitch F1 [Member] | Time deposits [Member] | Scotiabank Sud Americano [Member] | Financial assets neither past due nor impaired [member] |  |
Financial risk management [Line Items] |  |
Financial assets | 7,002 | 14,428
Fitch F1 [Member] | 90 days to 1 year [Member] | Banco Scotiabank Sud Americano [Member] | Financial assets neither past due nor impaired [member] |  |
Financial risk management [Line Items] |  |
Financial assets | 31,668 |
Moody's P-2 [Member] | 90 days to 1 year [Member] | Banco Scotiabank Sud Americano [Member] | Financial assets neither past due nor impaired [member] |  |
Financial risk management [Line Items] |  |
Financial assets |  | 54,180
Moody's P-1 S&P A-1 [Member] | Time deposits [Member] | Banco Credito e Inversiones [Member] | Financial assets neither past due nor impaired [member] |  |
Financial risk management [Line Items] |  |
Financial assets | 9,002 | 42,096
Moody's P-1 S&P A-1 [Member] | Time deposits [Member] | Banco Santander - Santiago [Member] | Financial assets neither past due nor impaired [member] |  |
Financial risk management [Line Items] |  |
Financial assets | 16,702 |
Moody's P-1 S&P A-1 [Member] | Time deposits [Member] | Banco de Chile [Member] | Financial assets neither past due nor impaired [member] |  |
Financial risk management [Line Items] |  |
Financial assets | 10,503 | 50,221
Moody's P-1 S&P A-1 [Member] | Time deposits [Member] | Banco Estado [Member] | Financial assets neither past due nor impaired [member] |  |
Financial risk management [Line Items] |  |
Financial assets | 1,001 | 500
Moody's P-1 S&P A-1 [Member] | Time deposits [Member] | Banco Santander [Member] | Financial assets neither past due nor impaired [member] |  |
Financial risk management [Line Items] |  |
Financial assets |  | 2,708
Moody's P-1 S&P A-1 [Member] | 90 days to 1 year [Member] | Banco Credito e Inversiones [Member] | Financial assets neither past due nor impaired [member] |  |
Financial risk management [Line Items] |  |
Financial assets | 185,589 |
Moody's P-1 S&P A-1 [Member] | 90 days to 1 year [Member] | Banco Santander - Santiago [Member] |  |
Financial risk management [Line Items] |  |
Financial assets |  | 74,365
Moody's P-1 S&P A-1 [Member] | 90 days to 1 year [Member] | Banco Santander - Santiago [Member] | Financial assets neither past due nor impaired [member] |  |
Financial risk management [Line Items] |  |
Financial assets | 45,168 |
Moody's P-1 S&P A-1 [Member] | 90 days to 1 year [Member] | Banco Estado [Member] | Financial assets neither past due nor impaired [member] |  |
Financial risk management [Line Items] |  |
Financial assets |  | 15,126
Moody's P-1 S&P A-1 [Member] | 90 days to 1 year [Member] | Banco de Crédito e Inversiones [Member] | Financial assets neither past due nor impaired [member] |  |
Financial risk management [Line Items] |  |
Financial assets |  | 178,448
Moody's P-2 S&P A-2 [Member] | Time deposits [Member] | Banco Itau Corpbanca [Member] | Financial assets neither past due nor impaired [member] |  |
Financial risk management [Line Items] |  |
Financial assets | 7,299 | 39,093
Moody's P-2 S&P A-2 [Member] | 90 days to 1 year [Member] | Banco Itau Corpbanca [Member] | Financial assets neither past due nor impaired [member] |  |
Financial risk management [Line Items] |  |
Financial assets | 49,006 | 127,579
S&P A-2 Fitch F2 [Member] | 90 days to 1 year [Member] | Banco Security [Member] | Financial assets neither past due nor impaired [member] |  |
Financial risk management [Line Items] |  |
Financial assets |  | 17,965
Moodys Aaamf SP AAAm Fitch AAAmmf [Member] | Investment Fund [Member] | JP Morgan US dollar Liquidity Fund Institutional [Member] | Financial assets neither past due nor impaired [member] |  |
Financial risk management [Line Items] |  |
Financial assets | 102,753 | 181,155
SP AAAm Fitch AAAmmf [Member] | Investment Fund [Member] | Legg Mason - Western Asset Institutional Cash Reserves [Member] | Financial assets neither past due nor impaired [member] |  |
Financial risk management [Line Items] |  |
Financial assets | 107,625 | $ 146,078
Moody's P-1 S&P A-1 Fitch N1+ [Member] | 90 days to 1 year [Member] | JP Morgan Asset Management [Member] | Financial assets neither past due nor impaired [member] |  |
Financial risk management [Line Items] |  |
Financial assets | $ 34,028 |

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- Definition The amount of assets that are: (a) cash; (b) an equity instrument of another entity; (c) a contractual right: (i) to receive cash or another financial asset from another entity; or (ii) to exchange financial assets or financial liabilities with another entity under conditions that are potentially favourable to the entity; or (d) a contract that will, or may be, settled in the entity’s own equity instruments and is: (i) a non-derivative for which the entity is, or may be, obliged to receive a variable number of the entity’s own equity instruments; or (ii) a derivative that will, or may be, settled other than by the exchange of a fixed amount of cash or another financial asset for a fixed number of the entity’s own equity instruments. For this purpose the entity’s own equity instruments do not include puttable financial instruments classified as equity instruments in accordance with paragraphs 16A-16B of IAS 32, instruments that impose on the entity an obligation to deliver to another party a pro rata share of the net assets of the entity only on liquidation and are classified as equity instruments in accordance with paragraphs 16C-16D of IAS 32, or instruments that are contracts for the future receipt or delivery of the entity’s own equity instruments. [Refer: Financial instruments, class [member]; Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2020-01-01 -Paragraph 25 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_25&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2020-01-01 -Paragraph 35H -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_35H&doctype=Standard -URIDate 2020-01-01 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2020-01-01 -Paragraph 35I -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_35I&doctype=Standard -URIDate 2020-01-01 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2020-01-01 -Paragraph 35M -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_35M&doctype=Standard -URIDate 2020-01-01 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2020-01-01 -Paragraph 35N -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_35N&doctype=Standard -URIDate 2020-01-01 + Details
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