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Cash and cash equivalents (Details 1) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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Cash And Cash Equivalents [Line Items] |  |
Short-term investments, classified as cash equivalents | $ 614,945 | $ 210,378
Legg Mason - Western Asset Institutional Cash Reserves [Member] |  |
Cash And Cash Equivalents [Line Items] |  |
Short-term investments, classified as cash equivalents | 233,648 | 107,625
JP Morgan US dollar Liquidity Fund Institutional [Member] |  |
Cash And Cash Equivalents [Line Items] |  |
Short-term investments, classified as cash equivalents | $ 381,297 | $ 102,753

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- Definition A classification of cash equivalents representing short-term investments. [Refer: Cash equivalents] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Paragraph 45 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_45&doctype=Standard -URIDate 2021-03-24 + Details
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- Details
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- Details
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