Income Taxes - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 31, 2021	Aug. 01, 2020	Jul. 31, 2021	Aug. 01, 2020
Income Tax Disclosure [Abstract]
Effective tax rate	(182.00%)	71.90%	(3.30%)	(49.30%)
Income tax benefit related to the carryback of the 2019 federal net operating loss to prior periods pursuant to the CARES Act			$ 12.3
Additional income tax benefit related to the carryback of the projected fiscal 2020 loss to years with a 35% statutory tax rate			$ 2.3
Statutory tax rate			35.00%