Statement Of Changes In Equity [Abstract]

ALFA FINANCIAL SOFTWARE HOLDINGS PL - Filing #1599562

Concept	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	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	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	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
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	46,500,000 GBP	—	43,400,000 GBP	—	3,400,000 GBP	—	43,400,000 GBP	—	– GBP	300,000 GBP	—	—	—	59,800,000 GBP	60,200,000 GBP	300,000 GBP	—	100,000 GBP	—	60,200,000 GBP	—	—	—	– GBP	82,300,000 GBP	– GBP	82,000,000 GBP	300,000 GBP	– GBP
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	—	19,200,000 GBP	—	—	—	– GBP	—	– GBP	—	—	19,200,000 GBP	19,200,000 GBP	20,300,000 GBP	—	—	—	20,300,000 GBP	—	– GBP	—	– GBP	– GBP	20,300,000 GBP	—	—	—	—	—	—
Other comprehensive income	—	100,000 GBP	—	100,000 GBP	—	– GBP	—	– GBP	—	—	100,000 GBP	– GBP	100,000 GBP	—	—	—	– GBP	—	– GBP	—	100,000 GBP	– GBP	100,000 GBP	—	—	—	—	—	—
Comprehensive income	—	19,100,000 GBP	—	100,000 GBP	—	– GBP	—	– GBP	—	—	19,100,000 GBP	19,200,000 GBP	20,400,000 GBP	—	—	—	20,300,000 GBP	—	– GBP	—	100,000 GBP	– GBP	20,400,000 GBP	—	—	—	—	—	—
Dividends recognised as distributions to owners	—	32,700,000 GBP	—	– GBP	—	– GBP	—	– GBP	—	—	—	32,700,000 GBP	—	—	—	—	44,200,000 GBP	—	– GBP	—	– GBP	– GBP	44,200,000 GBP	—	—	—	—	—	—
Increase (decrease) through share-based payment transactions, equity	—	1,100,000 GBP	—	– GBP	—	– GBP	—	– GBP	—	—	—	1,100,000 GBP	—	—	—	—	1,300,000 GBP	—	– GBP	—	– GBP	– GBP	1,300,000 GBP	—	—	—	—	—	—