Statement Of Changes In Equity [Abstract]

SAGA PLC - Filing #1645103

Concept	As at 2022-01-31	As at 2022-01-31	As at 2022-01-31	2021-02-01 to 2022-01-31	2021-02-01 to 2022-01-31	2021-02-01 to 2022-01-31	As at 2022-01-31	2021-02-01 to 2022-01-31	As at 2022-01-31	2021-02-01 to 2022-01-31	2021-02-01 to 2022-01-31	2021-02-01 to 2022-01-31	As at 2022-01-31	As at 2022-01-31	As at 2021-01-31	As at 2021-01-31	As at 2021-01-31	As at 2021-01-31	As at 2021-01-31	As at 2021-01-31	As at 2021-01-31	2020-02-01 to 2021-01-31	2020-02-01 to 2021-01-31	2020-02-01 to 2021-01-31	2020-02-01 to 2021-01-31	2020-02-01 to 2021-01-31	2020-02-01 to 2021-01-31	2020-02-01 to 2021-01-31	As at 2020-01-31	As at 2020-01-31	As at 2020-01-31	As at 2020-01-31	As at 2020-01-31	As at 2020-01-31	As at 2020-01-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	21,100,000 GBP	700,000 GBP	648,300,000 GBP	—	—	—	22,400,000 GBP	—	7,400,000 GBP	—	—	—	800,000 GBP	652,900,000 GBP	1,900,000 GBP	648,300,000 GBP	21,000,000 GBP	200,000 GBP	680,700,000 GBP	5,800,000 GBP	7,300,000 GBP	—	—	—	—	—	—	—	4,900,000 GBP	7,800,000 GBP	65,400,000 GBP	20,400,000 GBP	11,200,000 GBP	519,300,000 GBP	588,200,000 GBP
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	—	—	—	—	—	—	—	—	—	28,000,000 GBP	—	—	—	—	—	—	—	—	—	—	—	67,800,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—
Other comprehensive income	—	—	—	—	—	—	—	—	—	3,300,000 GBP	—	—	—	—	—	—	—	—	—	—	—	17,700,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—
Comprehensive income	—	—	—	– GBP	– GBP	1,200,000 GBP	—	24,400,000 GBP	—	31,300,000 GBP	– GBP	8,100,000 GBP	—	—	—	—	—	—	—	—	—	50,100,000 GBP	– GBP	2,400,000 GBP	– GBP	– GBP	68,800,000 GBP	16,300,000 GBP	—	—	—	—	—	—	—
Issue of equity	—	—	—	– GBP	100,000 GBP	– GBP	—	– GBP	—	100,000 GBP	– GBP	– GBP	—	—	—	—	—	—	—	—	—	150,400,000 GBP	9,800,000 GBP	– GBP	– GBP	140,600,000 GBP	– GBP	– GBP	—	—	—	—	—	—	—
Dividends recognised as distributions to owners	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	100,000 GBP	– GBP	– GBP	– GBP	– GBP	100,000 GBP	– GBP	—	—	—	—	—	—	—
Increase (decrease) through share-based payment transactions, equity	—	—	—	– GBP	– GBP	– GBP	—	– GBP	—	3,400,000 GBP	3,400,000 GBP	– GBP	—	—	—	—	—	—	—	—	—	2,400,000 GBP	– GBP	– GBP	2,400,000 GBP	– GBP	– GBP	– GBP	—	—	—	—	—	—	—