Retirement Savings Plans (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 02, 2019	Feb. 03, 2018	Jan. 28, 2017
Retirement savings plan
Minimum employee age required to participate in the plan	21 years
Percentage of the participant's compensation for which a discretionary matching contribution may be made by the Company	10.00%
Company's discretionary matching contribution percentage	50.00%
Total expense recorded under the plan, net of forfeitures	$ 9.8	$ 8.3	$ 8.7
Deferred compensation plans
Liability for compensation deferred under the Company's plans	77.3	78.9
Total employer contributions recorded under the plans, net of forfeitures	$ 2.1	$ 2.1	$ 2.2