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Stock-Based Compensation - Summary of Restricted-Stock Awards and Restricted-Stock Units (Detail)
shares in Thousands
9 Months Ended
Oct. 28, 2017
$ / shares
shares
Time-based Restricted Stock Units [Member]  
Number of Units  
Nonvested units outstanding, beginning balance | shares 487
Granted, Number of Units | shares 295
Vested, Number of Units | shares (242)
Forfeited, Number of Units | shares (119)
Nonvested units outstanding, ending balance | shares 421
Weighted- Average Grant Date Fair Value (per unit)  
Weighted-Average Grant Date Fair Value (per unit), beginning balance | $ / shares $ 18.04
Granted, Weighted-Average Grant Date Fair Value (per unit) | $ / shares 9.31
Vested, Weighted-Average Grant Date Fair Value (per unit) | $ / shares 18.06
Forfeited, Weighted-Average Grant Date Fair Value (per unit) | $ / shares 13.89
Weighted-Average Grant Date Fair Value (per unit), ending balance | $ / shares $ 13.08
Performance-based Restricted Stock Units [Member]  
Number of Units  
Nonvested units outstanding, beginning balance | shares 375
Granted, Number of Units | shares 212
Vested, Number of Units | shares 0
Forfeited, Number of Units | shares (206)
Nonvested units outstanding, ending balance | shares 381
Weighted- Average Grant Date Fair Value (per unit)  
Weighted-Average Grant Date Fair Value (per unit), beginning balance | $ / shares $ 19.10
Granted, Weighted-Average Grant Date Fair Value (per unit) | $ / shares 9.31
Vested, Weighted-Average Grant Date Fair Value (per unit) | $ / shares 0.00
Forfeited, Weighted-Average Grant Date Fair Value (per unit) | $ / shares 18.83
Weighted-Average Grant Date Fair Value (per unit), ending balance | $ / shares $ 13.79