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Organization and summary of significant accounting policies - Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 28, 2023	Jan. 29, 2022	Jan. 30, 2021
Non-cash investing activities:
Capital expenditures in accounts payable	$ 14.9	$ 6.2	$ 1.2
Supplemental cash flow information:
Interest paid	11.7	14.8	30.5
Income tax paid (refunded), net	74.6	$ 120.7	(176.0)
CARES Act, income tax refunded	$ 53.8		$ 183.4

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Proceeds from Income Tax Refunds, CARES Act

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Future cash outflow to pay for purchases of fixed assets that have occurred.

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The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

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