v3.26.1
Accumulated other comprehensive income (loss) - Changes in Accumulated OCI by Component and Reclassifications Out of Accumulated OCI (Details) - USD ($)
$ in Millions
 12 Months Ended
Jan. 31, 2026
Feb. 01, 2025
Feb. 03, 2024
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Balance $ 1,851.8 $ 2,166.5 $ 1,578.6
OCI before reclassifications 60.4 (12.3) 3.1
Amounts reclassified from AOCI to earnings (2.1) 0.1 (4.2)
Net current period OCI 58.3 (12.2) (1.1)
Balance 1,966.2 1,851.8 2,166.5
Accumulated other comprehensive loss      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Balance (277.5) (265.3) (264.2)
Balance (219.2) (277.5) (265.3)
Foreign currency translation      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Balance (277.7) (265.2) (268.4)
OCI before reclassifications 32.2 (12.5) 3.2
Amounts reclassified from AOCI to earnings 0.0 0.0 0.0
Net current period OCI 32.2 (12.5) 3.2
Balance (245.5) (277.7) (265.2)
Gain (losses) on available-for-sale securities      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Balance (0.2) (0.2) (0.2)
OCI before reclassifications 0.2 0.0 0.0
Amounts reclassified from AOCI to earnings 0.0 0.0 0.0
Net current period OCI 0.2 0.0 0.0
Balance 0.0 (0.2) (0.2)
Gains (losses) on cash flow hedges      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Balance 0.4 0.1 0.5
OCI before reclassifications 28.0 0.2 (0.1)
Amounts reclassified from AOCI to earnings (2.1) 0.1 (0.3)
Net current period OCI 25.9 0.3 (0.4)
Balance 26.3 0.4 0.1
Pension plan | Actuarial gains (losses)      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Balance 0.0 0.0 3.9
OCI before reclassifications 0.0 0.0 0.0
Amounts reclassified from AOCI to earnings 0.0 0.0 (3.9)
Net current period OCI 0.0 0.0 (3.9)
Balance $ 0.0 $ 0.0 $ 0.0