v3.20.1

Research and Development incentives receivables - Maturities (Details) - EUR (€) € in Thousands | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | --- | ---
Disclosure of financial assets [line items] |  |  |
Non-current R&D incentives receivables-discounted value | € 93,407 | € 73,443 | € 64,001
France |  |  |
Disclosure of financial assets [line items] |  |  |
Non-current R&D incentives receivables-discounted value | 31,804 |  |
Belgium |  |  |
Disclosure of financial assets [line items] |  |  |
Non-current R&D incentives receivables-discounted value | 61,603 |  |
Later than one year and not later than two years [member] |  |  |
Disclosure of financial assets [line items] |  |  |
Non-current R&D incentives receivables-discounted value | 14,549 |  |
Later than one year and not later than two years [member] | France |  |  |
Disclosure of financial assets [line items] |  |  |
Non-current R&D incentives receivables-discounted value | 9,668 |  |
Later than one year and not later than two years [member] | Belgium |  |  |
Disclosure of financial assets [line items] |  |  |
Non-current R&D incentives receivables-discounted value | 4,881 |  |
Later than two years and not later than three years [member] |  |  |
Disclosure of financial assets [line items] |  |  |
Non-current R&D incentives receivables-discounted value | 15,957 |  |
Later than two years and not later than three years [member] | France |  |  |
Disclosure of financial assets [line items] |  |  |
Non-current R&D incentives receivables-discounted value | 10,223 |  |
Later than two years and not later than three years [member] | Belgium |  |  |
Disclosure of financial assets [line items] |  |  |
Non-current R&D incentives receivables-discounted value | 5,734 |  |
Later than three years and not later than four years [member] |  |  |
Disclosure of financial assets [line items] |  |  |
Non-current R&D incentives receivables-discounted value | 19,447 |  |
Later than three years and not later than four years [member] | France |  |  |
Disclosure of financial assets [line items] |  |  |
Non-current R&D incentives receivables-discounted value | 11,913 |  |
Later than three years and not later than four years [member] | Belgium |  |  |
Disclosure of financial assets [line items] |  |  |
Non-current R&D incentives receivables-discounted value | 7,534 |  |
Later than four years and not later than five years [member] |  |  |
Disclosure of financial assets [line items] |  |  |
Non-current R&D incentives receivables-discounted value | 10,190 |  |
Later than four years and not later than five years [member] | Belgium |  |  |
Disclosure of financial assets [line items] |  |  |
Non-current R&D incentives receivables-discounted value | 10,190 |  |
Later than five years and not later than ten years [member] |  |  |
Disclosure of financial assets [line items] |  |  |
Non-current R&D incentives receivables-discounted value | 33,263 |  |
Later than five years and not later than ten years [member] | Belgium |  |  |
Disclosure of financial assets [line items] |  |  |
Non-current R&D incentives receivables-discounted value | € 33,263 |  |

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