Inventories - Schedule of Inventory Reserves (Details) - USD ($)	12 Months Ended
	Jan. 28, 2023	Jan. 29, 2022	Jan. 30, 2021
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	$ 46,800,000	$ 52,900,000	$ 67,000,000.0
Charged to income	63,600,000	101,800,000	78,100,000
Utilization	(82,700,000)	(107,900,000)	(92,200,000)
Balance at end of period	27,700,000	46,800,000	52,900,000
Signet Path to Brillance
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period		2,200,000
Charged to income	0	0	1,400,000
Utilization	$ 0	$ (2,200,000)	(20,000,000)
Balance at end of period			$ 2,200,000