Statement Of Changes In Equity [Abstract]

Gecina - Filing #909488

Concept	2020-01-01 to 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	As at 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	As at 2019-12-31	As at 2019-12-31	2019-01-01 to 2019-12-31	2019-01-01 to 2019-12-31	As at 2019-12-31	2019-01-01 to 2019-12-31	2019-01-01 to 2019-12-31	As at 2019-12-31	As at 2019-12-31	2019-01-01 to 2019-12-31	As at 2018-12-31	As at 2018-12-31	As at 2018-12-31	As at 2018-12-31	As at 2018-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	—	26 576 EUR	12 474 325 EUR	573 950 EUR	11 900 375 EUR	—	—	12 500 901 EUR	—	—	12 699 218 EUR	27 352 EUR	—	—	12 726 570 EUR	—	—	12 126 141 EUR	573 077 EUR	—	29 431 EUR	11 721 814 EUR	11 751 245 EUR	11 149 813 EUR	572 001 EUR
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	154 339 EUR	—	—	—	—	154 831 EUR	—	—	492,000 EUR	154 831 EUR	—	—	1 515 287 EUR	1 603 EUR	—	1 516 890 EUR	1 515 287 EUR	—	—	—	—	—	—	—	—
Comprehensive income	153 192 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1 513 649 EUR	—	—	—	—	—	—	—	—	—
Issue of equity	6 715 EUR	—	—	—	—	5 843 EUR	873,000 EUR	—	—	6 715 EUR	—	—	9 345 EUR	—	—	9 345 EUR	8 268 EUR	—	—	1 076 EUR	—	—	—	—	—
Dividends recognised as distributions to owners	389 770 EUR	—	—	—	—	389 482 EUR	—	—	288,000 EUR	389 482 EUR	—	—	405 703 EUR	3 548 EUR	—	409 251 EUR	405 703 EUR	—	—	—	—	—	—	—	—
Increase (decrease) through treasury share transactions, equity	—	—	—	—	—	—	—	—	—	—	—	—	107 798 EUR	—	—	107 798 EUR	107 798 EUR	—	—	—	—	—	—	—	—
Increase (decrease) in equity	717,000 EUR	—	—	—	—	722,000 EUR	—	—	5,000 EUR	722,000 EUR	—	—	1 462 EUR	134,000 EUR	—	1 597 EUR	1 462 EUR	—	—	—	—	—	—	—	—