Segment information - Long Lived Assets by Region (Details) - USD ($) $ in Millions	Aug. 01, 2026	Jan. 31, 2026	Aug. 02, 2025
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Total long-lived assets	$ 1,647.8	$ 1,645.4	$ 1,580.2
Reportable segments \| North America
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Total long-lived assets	1,480.1	1,478.6	1,431.1
Reportable segments \| International segment
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Total long-lived assets	165.3	164.1	146.3
Reportable segments \| Other
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]
Total long-lived assets	$ 2.4	$ 2.7	$ 2.8