Disclosure Of Fair Value Measurement [Text Block]

Porr AG - Filing #1128974

Concept	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31	As at 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	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	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	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	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	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	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	As at 2018-12-31	As at 2018-12-31	As at 2018-12-31	As at 2018-12-31
Disclosure of fair value measurement [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of fair value measurement of assets [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of fair value measurement of assets [abstract]
Disclosure of fair value measurement of assets [line items]
Assets	—	—	—	—	—	—	—	—	—	3.509.463 EUR	—	—	—	—	—	—	—	—	—	3.664.929 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Reconciliation of changes in fair value measurement, assets [abstract]
Disclosure of fair value measurement of equity [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of fair value measurement of equity [abstract]
Disclosure of fair value measurement of equity [line items]
Equity	7,622 EUR	688,000 EUR	14,564 EUR	- EUR	251,287 EUR	635,985 EUR	29,095 EUR	47,918 EUR	7,778 EUR	650,549 EUR	325,854 EUR	78,397 EUR	114,000 EUR	7,341 EUR	141,047 EUR	599,038 EUR	29,095 EUR	11,957 EUR	587,081 EUR	599,038 EUR	- EUR	7,131 EUR	508,000 EUR	197,914 EUR	1,117 EUR	251,287 EUR	46,125 EUR	- EUR	155,290 EUR	153,974 EUR	155,290 EUR	30,837 EUR	571,646 EUR	42,624 EUR	618,234 EUR	- EUR	4,309 EUR	42,624 EUR	29,000 EUR	6,736 EUR	568,786 EUR	3,954 EUR	- EUR	615,364 EUR	- EUR	251,287 EUR	29,000 EUR	- EUR	251,287 EUR	6,736 EUR	- EUR	1,039 EUR	29,095 EUR	- EUR	3,964 EUR	- EUR	156,834 EUR	2,860 EUR	1,039 EUR	30,837 EUR	29,095 EUR	- EUR	10,000 EUR	4,309 EUR	2,860 EUR	2,870 EUR
Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract]