Share-Based Compensation (Restricted Stock Units Activity) (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended |
Oct. 31, 2020 | Nov. 02, 2019 | Oct. 31, 2020 | Nov. 02, 2019 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | |
Share-based Payment Arrangement, Exercise of Option, Tax Benefit | | $ 0 | $ 6 | $ 0 | $ 1,175 |
Restricted Stock Unit Activity, Number of Underlying Shares | | | | | |
Number of Underlying Shares, Beginning Balance at February 1, 2020 | | | | 796,725 | |
Number of Underlying Shares, Granted | | | | 0 | |
Number of Underlying Shares, Forfeited | | | | (382,225) | |
Number of Underlying Shares, Ending Balance at August 1, 2020 | | 414,500 | | 414,500 | |
Restricted Stock Unit Activity, Weighted-Average Grant Date Fair Value | | | | | |
Weighted-Average Grant Date Fair Value, Beginning Balance at February 1, 2020 | | | | $ 40.06 | |
Weighted-Average Grant Date Fair Value, Granted | | | | 0 | |
Weighted-Average Grant Date Fair Value, Forfeited | | | | 47.87 | |
Weighted-Average Grant Date Fair Value, Ending Balance at August 1, 2020 | | $ 32.86 | | $ 32.86 | |
Service-based restricted stock units with $1.00 net income requirement [Member] | | | | | |
Restricted Stock Unit Activity, Number of Underlying Shares | | | | | |
Number of Underlying Shares, Ending Balance at August 1, 2020 | | 66,624 | | 66,624 | |
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 | | $ 27,879 | | $ 27,879 | |
Restricted Stock Unit Activity, Number of Underlying Shares | | | | | |
Number of Underlying Shares, Beginning Balance at February 1, 2020 | | | | 1,676,831 | |
Number of Underlying Shares, Granted | | | | 2,280,194 | |
Number of Underlying Shares, Adjustments for performance achievement | | | | 0 | |
Number of Underlying Shares, Vested | | | | (790,429) | |
Number of Underlying Shares, Forfeited | | | | (107,795) | |
Number of Underlying Shares, Ending Balance at August 1, 2020 | [1] | 3,058,801 | | 3,058,801 | |
Restricted Stock Unit Activity, Weighted-Average Grant Date Fair Value | | | | | |
Weighted-Average Grant Date Fair Value, Beginning Balance at February 1, 2020 | | | | $ 18.68 | |
Weighted-Average Grant Date Fair Value, Granted | | | | 8.57 | |
Weighted-Average Grant Date Fair Value, Adjustments for performance achievement | | | | 0 | |
Weighted-Average Grant Date Fair Value, Vested | | | | 17.42 | |
Weighted-Average Grant Date Fair Value, Forfeited | | | | 13.83 | |
Weighted-Average Grant Date Fair Value, Ending Balance at August 1, 2020 | | $ 11.63 | | $ 11.63 | |
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 | | $ 0 | | $ 0 | |
Restricted Stock Unit Activity, Number of Underlying Shares | | | | | |
Number of Underlying Shares, Beginning Balance at February 1, 2020 | | | | 747,056 | |
Number of Underlying Shares, Granted | | | | 0 | |
Number of Underlying Shares, Adjustments for performance achievement | | | | 38,381 | |
Number of Underlying Shares, Vested | | | | (481,304) | |
Number of Underlying Shares, Forfeited | | | | (6,917) | |
Number of Underlying Shares, Ending Balance at August 1, 2020 | | 297,216 | | 297,216 | |
Restricted Stock Unit Activity, Weighted-Average Grant Date Fair Value | | | | | |
Weighted-Average Grant Date Fair Value, Beginning Balance at February 1, 2020 | | | | $ 15.11 | |
Weighted-Average Grant Date Fair Value, Granted | | | | 0 | |
Weighted-Average Grant Date Fair Value, Adjustments for performance achievement | | | | 11.37 | |
Weighted-Average Grant Date Fair Value, Vested | | | | 9.63 | |
Weighted-Average Grant Date Fair Value, Forfeited | | | | 22.80 | |
Weighted-Average Grant Date Fair Value, Ending Balance at August 1, 2020 | | $ 22.43 | | $ 22.43 | |
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition | | | | 0 years | |
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 | | $ 9,939 | | $ 9,939 | |
Restricted Stock Unit Activity, Number of Underlying Shares | | | | | |
Number of Underlying Shares, Beginning Balance at February 1, 2020 | | | | 421,784 | |
Number of Underlying Shares, Granted | | | | 519,905 | |
Number of Underlying Shares, Adjustments for performance achievement | | | | 134,122 | |
Number of Underlying Shares, Vested | | | | (350,447) | |
Number of Underlying Shares, Forfeited | | | | (3,485) | |
Number of Underlying Shares, Ending Balance at August 1, 2020 | | 721,879 | | 721,879 | |
Restricted Stock Unit Activity, Weighted-Average Grant Date Fair Value | | | | | |
Weighted-Average Grant Date Fair Value, Beginning Balance at February 1, 2020 | | | | $ 23.05 | |
Weighted-Average Grant Date Fair Value, Granted | | | | 16.24 | $ 36.24 |
Weighted-Average Grant Date Fair Value, Adjustments for performance achievement | | | | 11.79 | |
Weighted-Average Grant Date Fair Value, Vested | | | | 11.79 | |
Weighted-Average Grant Date Fair Value, Forfeited | | | | 35.61 | |
Weighted-Average Grant Date Fair Value, Ending Balance at August 1, 2020 | | $ 21.46 | | $ 21.46 | |
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition | | | | 1 year 1 month 6 days | |
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[1] | (1) Includes 66,624 unvested restricted stock units as of October 31, 2020, subject to vesting requirements related to the achievement of certain performance metrics, such as operating income and net income, for the fiscal year immediately preceding the vesting date. Holders of these restricted stock units have the opportunity to earn back one or more installments of the award if the cumulative performance requirements are met in a subsequent year. (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. Certain unvested shares related to restricted stock units with performance-based vesting conditions can be achieved at up to 200% of their target vesting amount. | |