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Commitments and contingencies - Debt Covenant Ratios (Details) | Dec. 31, 2021 | Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021
--- | --- | --- | --- | ---
Other Commitments [Line Items] |  |  |  |
Leverage Ratio | 1.39 |  |  |
Debt Covenants |  |  |  |
Other Commitments [Line Items] |  |  |  |
Fixed Charge Coverage Ratio | 1.89 | 1.65 | 1.40 | 0.93
Leverage Ratio | 3.94 | 4.46 | 5.50 | 7.85

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- Definition Debt Instrument, Covenant Compliance, Fixed Charge Coverage Ratio + References No definition available. + Details
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- Definition Debt Instrument, Covenant Terms, Ratio of Indebtedness to Earnings Before Interest, Taxes, Depreciation and Amortization + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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