Statement Of Changes In Equity [Abstract]

Safestore Holdings PLC - Filing #2911131

Concept	2023-11-01 to 2024-10-31	2023-11-01 to 2024-10-31	2023-11-01 to 2024-10-31	2023-11-01 to 2024-10-31	2023-11-01 to 2024-10-31	2022-11-01 to 2023-10-31	2022-11-01 to 2023-10-31	2022-11-01 to 2023-10-31	2022-11-01 to 2023-10-31	2022-11-01 to 2023-10-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Increase (decrease) through exercise of options, equity	300,000 GBP	300,000 GBP	— GBP	— GBP	— GBP	— GBP	2,900,000 GBP	— GBP	2,900,000 GBP	— GBP
Increase (decrease) through transactions with owners, equity	65,500,000 GBP	66,200,000 GBP	— GBP	— GBP	700,000 GBP	100,000 GBP	63,000,000 GBP	— GBP	62,700,000 GBP	200,000 GBP