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Cash and cash equivalents (Details 4) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Cash And Cash Equivalents [Line Items] |  |
Notional amount | $ 39,031 | $ 282,914
Short-term deposits, classified as cash equivalents | $ 51,595 | $ 149,099
Short term deposit One [Member] |  |
Cash And Cash Equivalents [Line Items] |  |
Name of the receiver of deposit | Banco Santander - Santiago | Banco crédito e inversiones
Description of type of deposit | Fixed term | Fixed term
Short term deposits, original currency | Dollar | Dollar
Short term deposits, Interest rate | 0.35% | 3.45%
Date of short term deposit | Dec. 30, 2020 | Nov. 18, 2019
Expiration date | Mar. 30, 2021 | Feb. 13, 2020
Notional amount | $ 7,000 | $ 18,000
Accrued income | 0 | 74
Short-term deposits, classified as cash equivalents | $ 7,000 | $ 18,074
Short term deposit Two [Member] |  |
Cash And Cash Equivalents [Line Items] |  |
Name of the receiver of deposit | Scotiabank Sud Americano | Banco crédito e inversiones
Description of type of deposit | Fixed term | Fixed term
Short term deposits, original currency | Dollar | Dollar
Short term deposits, Interest rate | 0.35% | 2.85%
Date of short term deposit | Nov. 30, 2020 | Dec. 26, 2019
Expiration date | Jan. 08, 2021 | Feb. 20, 2020
Notional amount | $ 1,500 | $ 20,000
Accrued income | 1 | 8
Short-term deposits, classified as cash equivalents | $ 1,501 | $ 20,008
Short term deposit Three [Member] |  |
Cash And Cash Equivalents [Line Items] |  |
Name of the receiver of deposit | Banco de Chile | Banco de Chile
Description of type of deposit | Fixed term | Fixed term
Short term deposits, original currency | Dollar | Dollar
Short term deposits, Interest rate | 0.61% | 3.45%
Date of short term deposit | Nov. 30, 2020 | Nov. 15, 2019
Expiration date | Jan. 08, 2021 | Jan. 23, 2020
Notional amount | $ 2,000 | $ 14,000
Accrued income | 1 | 62
Short-term deposits, classified as cash equivalents | $ 2,001 | $ 14,062
Short term deposit Four [Member] |  |
Cash And Cash Equivalents [Line Items] |  |
Name of the receiver of deposit | Banco de Chile | Banco de Chile
Description of type of deposit | Fixed term | Fixed term
Short term deposits, original currency | Dollar | Dollar
Short term deposits, Interest rate | 0.61% | 3.50%
Date of short term deposit | Nov. 30, 2020 | Nov. 15, 2019
Expiration date | Jan. 08, 2021 | Jan. 09, 2020
Notional amount | $ 3,500 | $ 18,000
Accrued income | 1 | 80
Short-term deposits, classified as cash equivalents | $ 3,501 | $ 18,080
Short term deposit Five [Member] |  |
Cash And Cash Equivalents [Line Items] |  |
Name of the receiver of deposit | Banco crédito e inversiones | Banco de Chile
Description of type of deposit | Fixed term | Fixed term
Short term deposits, original currency | Dollar | Dollar
Short term deposits, Interest rate | 0.46% | 3.45%
Date of short term deposit | Dec. 01, 2020 | Nov. 15, 2019
Expiration date | Jan. 15, 2021 | Jan. 16, 2020
Notional amount | $ 500 | $ 18,000
Accrued income | 0 | 79
Short-term deposits, classified as cash equivalents | $ 500 | $ 18,079
Short term deposit Six [Member] |  |
Cash And Cash Equivalents [Line Items] |  |
Name of the receiver of deposit | Scotiabank Sud Americano | Banco Itaú Corpbanca
Description of type of deposit | Fixed term | Fixed term
Short term deposits, original currency | Dollar | Dollar
Short term deposits, Interest rate | 0.40% | 2.90%
Date of short term deposit | Dec. 01, 2020 | Dec. 26, 2019
Expiration date | Jan. 15, 2021 | Feb. 20, 2020
Notional amount | $ 500 | $ 33,000
Accrued income | 0 | 13
Short-term deposits, classified as cash equivalents | $ 500 | $ 33,013
Short term deposit Seven [Member] |  |
Cash And Cash Equivalents [Line Items] |  |
Name of the receiver of deposit | Scotiabank Sud Americano | Scotiabank Sud Americano
Description of type of deposit | Fixed term | Fixed term
Short term deposits, original currency | Dollar | Peso
Short term deposits, Interest rate | 0.40% | 2.16%
Date of short term deposit | Dec. 02, 2020 | Dec. 30, 2019
Expiration date | Jan. 20, 2021 | Jan. 08, 2020
Notional amount | $ 2,500 | $ 6,812
Accrued income | 1 | 0
Short-term deposits, classified as cash equivalents | $ 2,501 | $ 6,812
Short term deposit Eight [Member] |  |
Cash And Cash Equivalents [Line Items] |  |
Name of the receiver of deposit | Banco Santander - Santiago | Banco crédito e inversiones
Description of type of deposit | Fixed term | Fixed term
Short term deposits, original currency | Dollar | Dollar
Short term deposits, Interest rate | 0.50% | 3.51%
Date of short term deposit | Dec. 09, 2020 | Nov. 21, 2019
Expiration date | Jan. 25, 2021 | Jan. 28, 2020
Notional amount | $ 500 | $ 1,000
Accrued income | 0 | 4
Short-term deposits, classified as cash equivalents | $ 500 | $ 1,004
Short term deposit Nine [Member] |  |
Cash And Cash Equivalents [Line Items] |  |
Name of the receiver of deposit | Scotiabank Sud Americano | Banco crédito e inversiones
Description of type of deposit | Fixed term | Fixed term
Short term deposits, original currency | Dollar | Dollar
Short term deposits, Interest rate | 0.50% | 3.75%
Date of short term deposit | Dec. 09, 2020 | Dec. 02, 2019
Expiration date | Jan. 25, 2021 | Feb. 27, 2020
Notional amount | $ 1,000 | $ 2,000
Accrued income | 0 | 6
Short-term deposits, classified as cash equivalents | $ 1,000 | $ 2,006
Short term deposit Ten [Member] |  |
Cash And Cash Equivalents [Line Items] |  |
Name of the receiver of deposit | Banco Santander - Santiago | Banco crédito e inversiones
Description of type of deposit | Fixed term | Fixed term
Short term deposits, original currency | Dollar | Dollar
Short term deposits, Interest rate | 0.50% | 3.60%
Date of short term deposit | Dec. 09, 2020 | Nov. 25, 2019
Expiration date | Jan. 25, 2021 | Jan. 28, 2020
Notional amount | $ 6,000 | $ 1,000
Accrued income | 1 | 4
Short-term deposits, classified as cash equivalents | $ 6,001 | $ 1,004
Short term deposit Eleven [Member] |  |
Cash And Cash Equivalents [Line Items] |  |
Name of the receiver of deposit | Banco crédito e inversiones | Banco Estado
Description of type of deposit | Fixed term | Fixed term
Short term deposits, original currency | Dollar | Dollar
Short term deposits, Interest rate | 0.51% | 2.15%
Date of short term deposit | Dec. 09, 2020 | Dec. 16, 2019
Expiration date | Jan. 25, 2021 | Jan. 06, 2020
Notional amount | $ 6,000 | $ 500
Accrued income | 1 | 0
Short-term deposits, classified as cash equivalents | $ 6,001 | $ 500
Short term deposit Twelve [Member] |  |
Cash And Cash Equivalents [Line Items] |  |
Name of the receiver of deposit | Banco crédito e inversiones | Banco Santander - Santiago
Description of type of deposit | Fixed term | Fixed term
Short term deposits, original currency | Dollar | Dollar
Short term deposits, Interest rate | 0.26% | 2.55%
Date of short term deposit | Dec. 14, 2020 | Dec. 09, 2019
Expiration date | Jan. 29, 2021 | Feb. 04, 2020
Notional amount | $ 500 | $ 1,700
Accrued income | 0 | 3
Short-term deposits, classified as cash equivalents | $ 500 | $ 1,703
Short term deposit Thirteen [Member] |  |
Cash And Cash Equivalents [Line Items] |  |
Name of the receiver of deposit | Banco Estado | Banco Itaú Corpbanca
Description of type of deposit | Fixed term | Fixed term
Short term deposits, original currency | Dollar | Dollar
Short term deposits, Interest rate | 0.14% | 2.55%
Date of short term deposit | Dec. 14, 2020 | Dec. 16, 2019
Expiration date | Jan. 29, 2021 | Jan. 06, 2020
Notional amount | $ 1,000 | $ 2,500
Accrued income | 1 | 3
Short-term deposits, classified as cash equivalents | $ 1,001 | $ 2,503
Short term deposit Fourteen [Member] |  |
Cash And Cash Equivalents [Line Items] |  |
Name of the receiver of deposit | Scotiabank Sud Americano | Banco Itaú Corpbanca
Description of type of deposit | Fixed term | Fixed term
Short term deposits, original currency | Dollar | Dollar
Short term deposits, Interest rate | 0.40% | 3.64%
Date of short term deposit | Dec. 14, 2020 | Nov. 29, 2019
Expiration date | Jan. 29, 2021 | Feb. 13, 2020
Notional amount | $ 1,500 | $ 1,500
Accrued income | 0 | 5
Short-term deposits, classified as cash equivalents | $ 1,500 | $ 1,505
Short term deposit Fifteen [Member] |  |
Cash And Cash Equivalents [Line Items] |  |
Name of the receiver of deposit | Banco de Chile | Banco Itaú Corpbanca
Description of type of deposit | Fixed term | Fixed term
Short term deposits, original currency | Dollar | Dollar
Short term deposits, Interest rate | 0.56% | 2.80%
Date of short term deposit | Dec. 14, 2020 | Nov. 12, 2019
Expiration date | Jan. 29, 2021 | Jan. 28, 2020
Notional amount | $ 5,000 | $ 2,000
Accrued income | 1 | 8
Short-term deposits, classified as cash equivalents | $ 5,001 | $ 2,008
Short term deposit Sixteen [Member] |  |
Cash And Cash Equivalents [Line Items] |  |
Name of the receiver of deposit | Banco Itaú Corpbanca | Banco Santander - Santiago
Description of type of deposit | Fixed term | Fixed term
Short term deposits, original currency | Dollar | Dollar
Short term deposits, Interest rate | 0.68% | 2.33%
Date of short term deposit | Dec. 18, 2020 | Oct. 16, 2019
Expiration date | Jan. 01, 2021 | Jan. 12, 2020
Notional amount | $ 500 | $ 1,000
Accrued income | 0 | 5
Short-term deposits, classified as cash equivalents | $ 500 | $ 1,005
Short term deposit Seventeen [Member] |  |
Cash And Cash Equivalents [Line Items] |  |
Name of the receiver of deposit | Banco Itaú Corpbanca | Scotiabank Sud Americano
Description of type of deposit | Fixed term | Fixed term
Short term deposits, original currency | Dollar | Dollar
Short term deposits, Interest rate | 0.68% | 2.45%
Date of short term deposit | Dec. 18, 2020 | Dec. 17, 2019
Expiration date | Feb. 01, 2021 | Jan. 13, 2020
Notional amount | $ 2,000 | $ 3,600
Accrued income | 1 | 3
Short-term deposits, classified as cash equivalents | $ 2,001 | $ 3,603
Short term deposit Eighteen [Member] |  |
Cash And Cash Equivalents [Line Items] |  |
Name of the receiver of deposit | Banco crédito e inversiones | Scotiabank Sud Americano
Description of type of deposit | Fixed term | Fixed term
Short term deposits, original currency | Dollar | Dollar
Short term deposits, Interest rate | 0.20% | 3.20%
Date of short term deposit | Dec. 23, 2020 | Nov. 13, 2019
Expiration date | Feb. 05, 2021 | Jan. 30, 2020
Notional amount | $ 2,000 | $ 500
Accrued income | 1 | 2
Short-term deposits, classified as cash equivalents | $ 2,001 | $ 502
Short term deposit Nineteen [Member] |  |
Cash And Cash Equivalents [Line Items] |  |
Name of the receiver of deposit | Banco Itaú Corpbanca | Scotiabank Sud Americano
Description of type of deposit | Fixed term | Fixed term
Short term deposits, original currency | Dollar | Dollar
Short term deposits, Interest rate | 0.40% | 3.40%
Date of short term deposit | Dec. 24, 2020 | Dec. 02, 2019
Expiration date | Feb. 08, 2021 | Feb. 27, 2020
Notional amount | $ 1,000 | $ 2,000
Accrued income | 0 | 5
Short-term deposits, classified as cash equivalents | $ 1,000 | $ 2,005
Short term deposit Twenty [Member] |  |
Cash And Cash Equivalents [Line Items] |  |
Name of the receiver of deposit | Banco Santander - Santiago | Scotiabank Sud Americano
Description of type of deposit | Fixed term | Fixed term
Short term deposits, original currency | Dollar | Dollar
Short term deposits, Interest rate | 0.26% | 3.45%
Date of short term deposit | Dec. 29, 2020 | Nov. 18, 2019
Expiration date | Jan. 08, 2021 | Jan. 30, 2020
Notional amount | $ 2,500 | $ 1,500
Accrued income | 1 | 6
Short-term deposits, classified as cash equivalents | $ 2,501 | $ 1,506
Short term deposit Twenty One [Member] |  |
Cash And Cash Equivalents [Line Items] |  |
Name of the receiver of deposit | Banco Santander - Santiago | BBVA Banco Francés
Description of type of deposit | Fixed term | Fixed term
Short term deposits, original currency | Dollar | Dollar
Short term deposits, Interest rate | 0.15% | 39.00%
Date of short term deposit | Dec. 30, 2020 | Dec. 26, 2019
Expiration date | Feb. 12, 2021 | Jan. 27, 2020
Notional amount | $ 700 | $ 52
Accrued income | 0 | 1
Short-term deposits, classified as cash equivalents | $ 700 | $ 53
Short term deposit Twenty Two [Member] |  |
Cash And Cash Equivalents [Line Items] |  |
Name of the receiver of deposit | Banco Itaú Corpbanca | Banco Itaú S.A.
Description of type of deposit | Fixed term | On demand
Short term deposits, original currency | Peso | Dollar
Short term deposits, Interest rate | 0.35% | 8.00%
Date of short term deposit | Dec. 29, 2020 | Oct. 17, 2019
Expiration date | Jan. 05, 2021 | Jan. 17, 2020
Notional amount | $ 3,798 | $ 64
Accrued income | 0 | 0
Short-term deposits, classified as cash equivalents | $ 3,798 | 64
Short term deposit Twenty Three [Member] |  |
Cash And Cash Equivalents [Line Items] |  |
Name of the receiver of deposit | BBVA Banco Francés |
Description of type of deposit | Fixed term |
Short term deposits, original currency | Dollar |
Short term deposits, Interest rate | 1.80% |
Date of short term deposit | Dec. 31, 2020 |
Expiration date | Mar. 06, 2021 |
Notional amount | $ 86 |
Accrued income | 0 |
Short-term deposits, classified as cash equivalents | 86 |
Short term deposit [Member] |  |
Cash And Cash Equivalents [Line Items] |  |
Notional amount | 51,584 | 148,728
Accrued income | 11 | 371
Short-term deposits, classified as cash equivalents | $ 51,595 | $ 149,099

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