Statement Of Changes In Equity [Abstract]

Ciech S.A. - Filing #6225331

Concept	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	2021-01-01 to 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	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	2021-01-01 to 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2020-01-01 to 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	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	As at 2020-12-31	2020-01-01 to 2020-12-31	As at 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	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 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
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	—	1 116 703 PLN	—	—	—	2 396 931 PLN	—	158 763 PLN	20 331 PLN	—	36 327 PLN	—	—	1 582 PLN	2 400 707 PLN	425 021 PLN	3 776 PLN	—	470 846 PLN	287 614 PLN	—	—	—	982 418 PLN	2 077 PLN	9 393 PLN	—	2 120 615 PLN	287 614 PLN	—	—	3 659 PLN	—	495,000 PLN	—	31 737 PLN	470 846 PLN	—	2 118 538 PLN	—	—	—	—	425 021 PLN	1 977 796 PLN	1 017 PLN	360,000 PLN	75 944 PLN	470 846 PLN	1 976 779 PLN	1 199 657 PLN	216,000 PLN	78 521 PLN	17 678 PLN	287 614 PLN
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	781,000 PLN	—	- PLN	- PLN	292 418 PLN	—	- PLN	—	—	- PLN	—	- PLN	- PLN	—	—	—	—	- PLN	—	—	291 637 PLN	292 418 PLN	128 030 PLN	—	—	—	- PLN	—	—	129 277 PLN	- PLN	—	- PLN	—	- PLN	—	—	- PLN	—	- PLN	1 247 PLN	- PLN	129 277 PLN	—	—	—	—	—	—	—	—	—	—	—	—
Other comprehensive income	112,000 PLN	—	168 156 PLN	- PLN	145 773 PLN	—	- PLN	—	—	16 672 PLN	—	1 087 PLN	4 590 PLN	—	—	—	—	- PLN	—	—	145 885 PLN	34,000 PLN	13 702 PLN	—	—	—	135,000 PLN	—	—	9,000 PLN	3 443 PLN	—	- PLN	—	27 071 PLN	—	—	- PLN	—	44 207 PLN	153,000 PLN	- PLN	13 549 PLN	—	—	—	—	—	—	—	—	—	—	—	—
Comprehensive income	669,000 PLN	—	168 156 PLN	- PLN	438 191 PLN	—	- PLN	—	—	16 672 PLN	—	1 087 PLN	4 590 PLN	—	—	—	—	- PLN	—	—	437 522 PLN	292 384 PLN	141 732 PLN	—	—	—	135,000 PLN	—	—	129 268 PLN	3 443 PLN	—	- PLN	—	27 071 PLN	—	—	- PLN	—	44 207 PLN	1 094 PLN	- PLN	142 826 PLN	—	—	—	—	—	—	—	—	—	—	—	—
Increase (decrease) through treasury share transactions, equity	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	- PLN	—	—	—	- PLN	—	—	346 500 PLN	- PLN	—	346 500 PLN	—	- PLN	—	—	- PLN	—	- PLN	- PLN	- PLN	- PLN	—	—	—	—	—	—	—	—	—	—	—	—