Statement Of Changes In Equity [Abstract]

TEC Maritsa 3 AD - Filing #6022854

Concept	As at 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	As at 2020-12-31	2020-01-01 to 2020-12-31	As at 2020-12-31	2020-01-01 to 2020-12-31	As at 2020-12-31	2020-01-01 to 2020-12-31	As at 2020-12-31	2020-01-01 to 2020-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	34 081 BGN	9 559 BGN	—	23 585 BGN	—	937,000 BGN	—	—	17 281 BGN	—	937,000 BGN	—	9 559 BGN	—	6 785 BGN	—	9 559 BGN	5 877 BGN	16 373 BGN	937,000 BGN
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	—	—	- BGN	—	- BGN	—	16 800 BGN	16 800 BGN	—	908,000 BGN	—	908,000 BGN	—	- BGN	—	- BGN	—	—	—	—
Comprehensive income	—	—	- BGN	—	- BGN	—	16 800 BGN	16 800 BGN	—	908,000 BGN	—	908,000 BGN	—	- BGN	—	- BGN	—	—	—	—