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Goodwill and intangibles - Schedule of Future Amortization (Details) - USD ($) $ in Millions	Jan. 28, 2023	Jan. 29, 2022
Intangible assets amortization
Fiscal 2024	$ 1.9
Fiscal 2025	1.3
Fiscal 2026	1.2
Fiscal 2027	1.2
Fiscal 2028	1.2
Thereafter	1.4
Net carrying amount	8.2	$ 10.5
Intangible liabilities amortization
Fiscal 2024	(1.8)
Fiscal 2025	(1.8)
Fiscal 2026	(1.8)
Fiscal 2027	0.0
Fiscal 2028	0.0
Thereafter	0.0
Total	$ (5.4)	$ (7.2)

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