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Financial risk management - D.1. Interest rate risk (Details) - Interest rate risk | Dec. 31, 2020 | Dec. 31, 2019
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Fixed interest rate |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Percentage of debt | 75.00% |
Concentration percentage | 84.00% | 76.00%
Floating interest rate |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Percentage of debt |  |

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Definition Risk Exposure Associated With Instruments Sharing Characteristic, Concentration Percentage + References No definition available. + Details
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