Statement Of Changes In Equity [Abstract]

Safestore Holdings PLC - Filing #1845178

Concept	As at 2022-10-31	As at 2022-10-31	As at 2022-10-31	As at 2022-10-31	As at 2022-10-31	2021-11-01 to 2022-10-31	2021-11-01 to 2022-10-31	2021-11-01 to 2022-10-31	2021-11-01 to 2022-10-31	2021-11-01 to 2022-10-31	As at 2021-10-31	As at 2021-10-31	2020-11-01 to 2021-10-31	2020-11-01 to 2021-10-31	2020-11-01 to 2021-10-31	2020-11-01 to 2021-10-31	As at 2021-10-31	2020-11-01 to 2021-10-31	As at 2021-10-31	As at 2021-10-31	As at 2020-10-31	As at 2020-10-31	As at 2020-10-31	As at 2020-10-31	As at 2020-10-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	8,500,000 GBP	1,793,400,000 GBP	2,100,000 GBP	61,800,000 GBP	1,721,000,000 GBP	—	—	—	—	—	1,374,900,000 GBP	2,100,000 GBP	—	—	—	—	61,300,000 GBP	—	5,100,000 GBP	1,306,400,000 GBP	2,100,000 GBP	14,500,000 GBP	958,400,000 GBP	60,600,000 GBP	1,035,600,000 GBP
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	—	—	—	—	—	462,900,000 GBP	— GBP	462,900,000 GBP	— GBP	— GBP	—	—	— GBP	— GBP	382,000,000 GBP	382,000,000 GBP	—	— GBP	—	—	—	—	—	—	—
Other comprehensive income	—	—	—	—	—	3,400,000 GBP	— GBP	— GBP	3,400,000 GBP	— GBP	—	—	— GBP	9,400,000 GBP	9,400,000 GBP	— GBP	—	— GBP	—	—	—	—	—	—	—
Comprehensive income	—	—	—	—	—	466,300,000 GBP	— GBP	462,900,000 GBP	3,400,000 GBP	— GBP	—	—	— GBP	9,400,000 GBP	372,600,000 GBP	382,000,000 GBP	—	— GBP	—	—	—	—	—	—	—
Issue of equity	—	—	—	—	—	500,000 GBP	500,000 GBP	— GBP	— GBP	— GBP	—	—	— GBP	— GBP	700,000 GBP	— GBP	—	700,000 GBP	—	—	—	—	—	—	—
Dividends recognised as distributions to owners	—	—	—	—	—	56,900,000 GBP	— GBP	56,900,000 GBP	— GBP	— GBP	—	—	— GBP	— GBP	42,600,000 GBP	42,600,000 GBP	—	— GBP	—	—	—	—	—	—	—