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Accounts Receivable, net - Analysis of expected credit losses (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
IFRS Statement [Line Items] |  |
Carrying amount of accounts receivable | $ 243,626 | $ 164,943
Loss allowance for lifetime expected credit | 0 | 0
No Past Due [Member] |  |
IFRS Statement [Line Items] |  |
Carrying amount of accounts receivable | $ 243,208 | $ 162,765
Weighted average loss rate | 0.00% | 0.00%
Loss allowance for lifetime expected credit | $ 0 | $ 0
Past due within 30 days [Member] |  |
IFRS Statement [Line Items] |  |
Carrying amount of accounts receivable | $ 36 | 1,685
Weighted average loss rate | 0.00% |
Loss allowance for lifetime expected credit | $ 0 | $ 0
Past due within 30 days [Member] | Bottom of range [member] |  |
IFRS Statement [Line Items] |  |
Weighted average loss rate |  | 0.00%
Past due within 30 days [Member] | Top of range [member] |  |
IFRS Statement [Line Items] |  |
Weighted average loss rate |  | 0.25%
Past due 31-60 days [Member] |  |
IFRS Statement [Line Items] |  |
Carrying amount of accounts receivable | $ 382 | $ 474
Weighted average loss rate | 0.00% |
Loss allowance for lifetime expected credit | $ 0 | $ 0
Past due 31-60 days [Member] | Bottom of range [member] |  |
IFRS Statement [Line Items] |  |
Weighted average loss rate |  | 0.00%
Past due 31-60 days [Member] | Top of range [member] |  |
IFRS Statement [Line Items] |  |
Weighted average loss rate |  | 4.16%
Past due 61-90 days [Member] |  |
IFRS Statement [Line Items] |  |
Carrying amount of accounts receivable | $ 0 | $ 0
Weighted average loss rate | 0.00% |
Loss allowance for lifetime expected credit | $ 0 | $ 0
Past due 61-90 days [Member] | Bottom of range [member] |  |
IFRS Statement [Line Items] |  |
Weighted average loss rate |  | 0.00%
Past due 61-90 days [Member] | Top of range [member] |  |
IFRS Statement [Line Items] |  |
Weighted average loss rate |  | 4.17%
Past due 91-120 days [Member] |  |
IFRS Statement [Line Items] |  |
Carrying amount of accounts receivable | 0 | $ 19
Loss allowance for lifetime expected credit | $ 0 | $ 0
Past due 91-120 days [Member] | Bottom of range [member] |  |
IFRS Statement [Line Items] |  |
Weighted average loss rate | 0.00% | 0.00%
Past due 91-120 days [Member] | Top of range [member] |  |
IFRS Statement [Line Items] |  |
Weighted average loss rate | 6.32% | 20.40%
Past due over 121 days [Member] |  |
IFRS Statement [Line Items] |  |
Carrying amount of accounts receivable | $ 0 | $ 0
Weighted average loss rate | 100.00% | 100.00%
Loss allowance for lifetime expected credit | $ 0 | $ 0

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- Definition The rate of expected credit losses, calculated as percentage of the gross carrying amount. Expected credit losses are the weighted average of credit losses with the respective risks of a default occurring as the weights. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2020-01-01 -Paragraph IG20D -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_IG20D&doctype=Implementation%20Guidance -URIDate 2020-01-01 Reference 2: 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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- Definition The amount of trade receivables and other receivables. [Refer: Trade receivables; Other receivables] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 54 -Subparagraph h -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_54_h&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 78 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_78_b&doctype=Standard -URIDate 2020-01-01 + Details
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