Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Millions	12 Months Ended
Jan. 29, 2022	Jan. 30, 2021	Feb. 01, 2020
Income Statement [Abstract]
Interest income	$ 0.6	$ 0.3	$ 2.1
Loss from discontinued operations tax expense (benefit)	$ 0.0	$ 0.2	$ 0.1

Amount of tax (expense) benefit on (gain) loss recognized for the (reversal of write-down) write-down to fair value, less cost to sell, of a discontinued operation.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration