Leases - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Jan. 28, 2023	Jan. 30, 2021	Aug. 19, 2022	Nov. 17, 2021
Lessee, Lease, Description [Line Items]
Operating lease ROU asset impairment	$ 15.3	$ 36.9
Blue Nile
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets			$ 39.1
Diamonds Direct USA Inc.
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets				$ 56.9