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Long-term debt - Covenants (Details) | 3 Months Ended
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Mar. 31, 2022 | Dec. 31, 2021 USD ($) | Sep. 30, 2021 | Jun. 30, 2021 USD ($) | Dec. 31, 2020 USD ($) period
Disclosure of detailed information about borrowings [table] |  |  |  |  |
Minimum interest coverage ratio | 2.00 | 1.25 | 1.00 |  |
Minimum EBITDA | $ |  | $ 30,000,000 |  | $ 70,000,000 | $ 25,000,000
Remaining periods eligible to be waived | period |  |  |  |  | 2

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- Definition Schedule disclosing information related to details of borrowings. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2020-01-01 -Paragraph 7 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_7&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition Debt Instrument, Covenant, Remaining Periods Eligible to Be Waived + References No definition available. + Details
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