Share-Based Compensation (Restricted Stock Units Activity) (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended			6 Months Ended
		Jul. 31, 2021	Aug. 01, 2020	[1]	Jul. 31, 2021	Aug. 01, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Exercise of Option, Tax Benefit		$ 826	$ 0		$ 4,016	$ 0
Restricted Stock Unit Activity, Number of Underlying Shares
Number of Underlying Shares, Beginning Balance at January 30, 2021					384,757
Number of Underlying Shares, Granted					0
Number of Underlying Shares, Forfeited					(34,150)
Number of Underlying Shares, Ending Balance at July 31, 2021		243,539			243,539
Restricted Stock Unit Activity, Weighted-Average Grant Date Fair Value
Weighted-Average Grant Date Fair Value, Beginning Balance at January 30, 2021					$ 33.04
Weighted-Average Grant Date Fair Value, Granted					0
Weighted-Average Grant Date Fair Value, Forfeited					54.87
Weighted-Average Grant Date Fair Value, Ending Balance at July 31, 2021		$ 32.69			$ 32.69
Service-based restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount		$ 36,486			$ 36,486
Restricted Stock Unit Activity, Number of Underlying Shares
Number of Underlying Shares, Beginning Balance at January 30, 2021					3,037,098
Number of Underlying Shares, Granted					659,612
Number of Underlying Shares, Adjustments for performance achievement					0
Number of Underlying Shares, Vested					(1,019,420)
Number of Underlying Shares, Forfeited					(45,199)
Number of Underlying Shares, Ending Balance at July 31, 2021	[2]	2,632,091			2,632,091
Restricted Stock Unit Activity, Weighted-Average Grant Date Fair Value
Weighted-Average Grant Date Fair Value, Beginning Balance at January 30, 2021					$ 11.62
Weighted-Average Grant Date Fair Value, Granted					32.38
Weighted-Average Grant Date Fair Value, Adjustments for performance achievement					0
Weighted-Average Grant Date Fair Value, Vested					12.19
Weighted-Average Grant Date Fair Value, Forfeited					12.73
Weighted-Average Grant Date Fair Value, Ending Balance at July 31, 2021		$ 16.58			$ 16.58
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition					1 year 3 months 18 days
Performance-based restricted stock units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount		$ 5,076			$ 5,076
Restricted Stock Unit Activity, Number of Underlying Shares
Number of Underlying Shares, Beginning Balance at January 30, 2021					297,216
Number of Underlying Shares, Granted					146,580
Number of Underlying Shares, Adjustments for performance achievement					(106,715)
Number of Underlying Shares, Vested					0
Number of Underlying Shares, Forfeited					(1,704)
Number of Underlying Shares, Ending Balance at July 31, 2021		335,377			335,377
Restricted Stock Unit Activity, Weighted-Average Grant Date Fair Value
Weighted-Average Grant Date Fair Value, Beginning Balance at January 30, 2021					$ 22.43
Weighted-Average Grant Date Fair Value, Granted					31.78
Weighted-Average Grant Date Fair Value, Adjustments for performance achievement					21.31
Weighted-Average Grant Date Fair Value, Vested					0
Weighted-Average Grant Date Fair Value, Forfeited					23.05
Weighted-Average Grant Date Fair Value, Ending Balance at July 31, 2021		$ 26.87			$ 26.87
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition					1 year 2 months 12 days
Market-based restricted stock units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount		$ 9,330			$ 9,330
Restricted Stock Unit Activity, Number of Underlying Shares
Number of Underlying Shares, Beginning Balance at January 30, 2021					721,879
Number of Underlying Shares, Granted					73,294
Number of Underlying Shares, Adjustments for performance achievement					(6,084)
Number of Underlying Shares, Vested					(100,634)
Number of Underlying Shares, Forfeited					(10,657)
Number of Underlying Shares, Ending Balance at July 31, 2021		677,798			677,798
Restricted Stock Unit Activity, Weighted-Average Grant Date Fair Value
Weighted-Average Grant Date Fair Value, Beginning Balance at January 30, 2021					$ 21.46
Weighted-Average Grant Date Fair Value, Granted					49.81
Weighted-Average Grant Date Fair Value, Adjustments for performance achievement					33.69
Weighted-Average Grant Date Fair Value, Vested					33.69
Weighted-Average Grant Date Fair Value, Forfeited					17.84
Weighted-Average Grant Date Fair Value, Ending Balance at July 31, 2021		$ 22.66			$ 22.66
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition					1 year

[1] No income tax benefit was recognized during the thirteen and twenty-six weeks ended August 1, 2020 due to the establishment of a valuation allowance.

[2] Unvested shares related to restricted stock units with performance-based and market-based vesting conditions are reflected at 100% of their target vesting amount in the table above. Unvested shares related to restricted stock units with performance-based and market-based vesting conditions can be achieved at up to 200% of their target vesting amount.