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Leases - Total cash outflow for leases (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
Disclosure Of Cash Flows For Leases [Line Items] |  |
Cash outflow for leases | $ 103,392 | $ 117,068
Aircraft [member] |  |
Disclosure Of Cash Flows For Leases [Line Items] |  |
Cash outflow for leases | 97,353 | 107,610
Real Estate [Member] |  |
Disclosure Of Cash Flows For Leases [Line Items] |  |
Cash outflow for leases | $ 6,039 | $ 9,458

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- Definition The cash outflow for leases. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2020-01-01 -Paragraph 53 -Subparagraph g -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2020-en-r&anchor=para_53_g&doctype=Standard -URIDate 2020-01-01 + Details
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- Details
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