Analysis Of Income And Expense [Abstract]

Ipsos - Filing #2816718

Concept	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31
Analysis of income and expense [abstract]
Revenue [abstract]
Revenue	—	—	—	—	—	—	—	2 146 725 EUR	—	1 837 424 EUR	—	—	—	—
Material income and expense [abstract]
Other finance cost	—	—	—	—	—	—	—	4 413 EUR	—	8 131 EUR	—	—	—	—
Expenses by nature [abstract]
Classes of employee benefits expense [abstract]
Expense from share-based payment transactions with employees	—	—	—	—	—	—	—	12 071 EUR	—	8 730 EUR	—	—	—	—
Employee benefits expense	—	—	—	—	—	—	—	896 461 EUR	—	824 709 EUR	—	—	—	—
Miscellaneous other comprehensive income [abstract]
Other comprehensive income, before tax, exchange differences on translation of foreign operations and hedges of net investments in foreign operations [abstract]
Other comprehensive income, before tax, exchange differences on translation of foreign operations	1 489 EUR	- EUR	- EUR	- EUR	- EUR	45 197 EUR	45 197 EUR	46 686 EUR	- EUR	66 551 EUR	65 119 EUR	1 432 EUR	65 119 EUR	—
Income tax relating to exchange differences on translation of foreign operations and hedges of net investments in foreign operations included in other comprehensive income [abstract]
Income tax relating to hedges of net investments in foreign operations included in other comprehensive income	—	—	—	—	—	—	—	8 396 EUR	—	8 699 EUR	—	—	—	—
Other comprehensive income, attributable to owners of parent	—	—	—	—	—	—	—	256 789 EUR	—	20 638 EUR	—	—	—	—
Other comprehensive income, attributable to non-controlling interests	—	—	—	—	—	—	—	4 237 EUR	—	537,000 EUR	—	—	—	—
Share of other comprehensive income of associates and joint ventures accounted for using equity method, net of tax [abstract]
Share of other comprehensive income of associates and joint ventures accounted for using equity method that will not be reclassified to profit or loss, net of tax	- EUR	- EUR	- EUR	4 546 EUR	- EUR	- EUR	4 546 EUR	4 546 EUR	—	- EUR	—	—	—	—
Share of other comprehensive income of associates and joint ventures accounted for using equity method, before tax [abstract]
Share of other comprehensive income of associates and joint ventures accounted for using equity method that will be reclassified to profit or loss, before tax	—	—	—	—	—	—	—	1 671 EUR	—	711,000 EUR	—	—	—	—
Comprehensive income, continuing and discontinued operations [abstract]
Comprehensive income	4 237 EUR	- EUR	- EUR	186 997 EUR	- EUR	69 792 EUR	256 789 EUR	261 026 EUR	- EUR	20 101 EUR	88 832 EUR	536,000 EUR	20 638 EUR	109 470 EUR