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Cash and cash equivalents - Short-Term Investments, Classified as Cash Equivalents (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
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Cash And Cash Equivalents [Line Items] |  |
Short-term investments, classified as cash equivalents | $ 1,026,146 | $ 614,945
Legg Mason - Western Asset Institutional cash reserves |  |
Cash And Cash Equivalents [Line Items] |  |
Short-term investments, classified as cash equivalents | 590,661 | 233,648
JP Morgan US Dollar liquidity Fund Institucional |  |
Cash And Cash Equivalents [Line Items] |  |
Short-term investments, classified as cash equivalents | $ 435,485 | $ 381,297

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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 2022-03-24 -Paragraph 45 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2022-en-r&anchor=para_45&doctype=Standard -URIDate 2022-03-24 + Details
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