Share-Based Compensation (Restricted Stock Units Activity) (Details) - $ / shares | 3 Months Ended |
Apr. 29, 2017 | Apr. 30, 2016 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | |
Target percentage of equity awards earned | | 100.00% | |
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 April 29, 2017 | | 786,449 | |
Service-based restricted stock units | | | |
Restricted Stock Unit Activity, Number of Underlying Shares | | | |
Number of Underlying Shares, Beginning Balance at January 28, 2017 | | 1,915,461 | |
Number of Underlying Shares, Granted | | 1,408,972 | |
Number of Underlying Shares, Adjustments for performance achievement | | 0 | |
Number of Underlying Shares, Vested | | (466,291) | |
Number of Underlying Shares, Forfeited | | (122,813) | |
Number of Underlying Shares, Ending Balance at April 29, 2017 | [1] | 2,735,329 | |
Restricted Stock Unit Activity, Weighted-Average Grant Date Fair Value | | | |
Weighted-Average Grant Date Fair Value, Beginning Balance at January 30, 2016 | | $ 25.47 | |
Weighted-Average Grant Date Fair Value, Granted | | 9.61 | |
Weighted-Average Grant Date Fair Value, Adjustments for performance achievement | | 0 | |
Weighted-Average Grant Date Fair Value, Vested | | 28.86 | |
Weighted-Average Grant Date Fair Value, Forfeited | | 22.37 | |
Weighted-Average Grant Date Fair Value, Ending Balance at October 29, 2016 | | $ 16.81 | |
Performance-based restricted stock units [Member] | | | |
Restricted Stock Unit Activity, Number of Underlying Shares | | | |
Number of Underlying Shares, Beginning Balance at January 28, 2017 | | 203,923 | |
Number of Underlying Shares, Granted | | 524,030 | |
Number of Underlying Shares, Adjustments for performance achievement | | 0 | |
Number of Underlying Shares, Vested | | 0 | |
Number of Underlying Shares, Forfeited | | (5,163) | |
Number of Underlying Shares, Ending Balance at April 29, 2017 | | 722,790 | |
Restricted Stock Unit Activity, Weighted-Average Grant Date Fair Value | | | |
Weighted-Average Grant Date Fair Value, Beginning Balance at January 30, 2016 | | $ 22.53 | |
Weighted-Average Grant Date Fair Value, Granted | | 9.11 | |
Weighted-Average Grant Date Fair Value, Adjustments for performance achievement | | 0 | |
Weighted-Average Grant Date Fair Value, Vested | | 0 | |
Weighted-Average Grant Date Fair Value, Forfeited | | 25.15 | |
Weighted-Average Grant Date Fair Value, Ending Balance at October 29, 2016 | | $ 12.26 | |
Market-based restricted stock units [Member] | | | |
Restricted Stock Unit Activity, Number of Underlying Shares | | | |
Number of Underlying Shares, Beginning Balance at January 28, 2017 | | 184,892 | |
Number of Underlying Shares, Granted | | 236,872 | |
Number of Underlying Shares, Adjustments for performance achievement | | 0 | |
Number of Underlying Shares, Vested | | 0 | |
Number of Underlying Shares, Forfeited | | (5,165) | |
Number of Underlying Shares, Ending Balance at April 29, 2017 | | 416,599 | |
Restricted Stock Unit Activity, Weighted-Average Grant Date Fair Value | | | |
Weighted-Average Grant Date Fair Value, Beginning Balance at January 30, 2016 | | $ 26.89 | |
Weighted-Average Grant Date Fair Value, Granted | | 11.79 | $ 38.22 |
Weighted-Average Grant Date Fair Value, Adjustments for performance achievement | | 0 | |
Weighted-Average Grant Date Fair Value, Vested | | 0 | |
Weighted-Average Grant Date Fair Value, Forfeited | | 29.55 | |
Weighted-Average Grant Date Fair Value, Ending Balance at October 29, 2016 | | $ 17.25 | |
Minimum | Performance-based restricted stock units [Member] | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | |
Target percentage of equity awards earned | | 0.00% | |
Minimum | Market-based restricted stock units [Member] | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | |
Target percentage of equity awards earned | | 0.00% | |
Maximum | Performance-based restricted stock units [Member] | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | |
Target percentage of equity awards earned | | 200.00% | |
Maximum | Market-based restricted stock units [Member] | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | |
Target percentage of equity awards earned | | 200.00% | |
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[1] | (1) This includes 786,449 unvested restricted stock units as of April 29, 2017 that are subject to the requirement that the Company must achieve at least $1.00 of GAAP net income attributable to A&F for the fiscal year in order to vest. | |