Stock-Based Compensation - Summary of Company's Stock Option, Performance Share Unit and Restricted Share Activity (Detail) (USD $) | 6 Months Ended |
In Thousands, except Per Share data, unless otherwise specified | Aug. 03, 2014 |
Stock Options [Member] | ' |
Number | ' |
Number of Stock Options, Beginning Balance | 669 |
Number of Stock Options, Granted | 206 |
Number of Stock Options, Exercised | 125 |
Number of Stock Options, Forfeited | 44 |
Number of Stock Options, Ending Balance | 706 |
Number of Stock Options, Exercisable | 356 |
Weighted-Average Exercise Price | ' |
Weighted-Average Exercise Price, Options, Beginning Balance (in dollars per share) | $30.76 |
Weighted-Average Exercise Price, Options, Granted (in dollars per share) | $52.30 |
Weighted-Average Exercise Price, Options, Exercised (in dollars per share) | $18 |
Weighted-Average Exercise Price, Options, Forfeited (in dollars per share) | $60.72 |
Weighted-Average Exercise Price, Options, Ending Balance (in dollars per share) | $37.44 |
Weighted-Average Exercise Price, Options, Exercisable (in dollars per share) | $20.32 |
Performance-Based Restricted Stock Units [Member] | ' |
Number of Performance-Based Restricted Stock Units and Restricted Shares | ' |
Number of Stock, Beginning Balance | 428 |
Number of Stock, Granted | 300 |
Number of Stock, Exercised | 171 |
Number of Stock, Forfeited | 46 |
Number of Stock, Ending Balance | 511 |
Weighted-Average Grant Date Fair Value | ' |
Weighted-Average Grant Fair Value, Beginning Balance (in dollars per share) | $57.08 |
Weighted-Average Grant Fair Value, Granted (in dollars per share) | $49.87 |
Weighted-Average Grant Fair Value, Exercised (in dollars per share) | $38.85 |
Weighted-Average Grant Fair Value, Forfeited (in dollars per share) | $60.81 |
Weighted-Average Grant Fair Value, Ending Balance (in dollars per share) | $58.60 |
Restricted Stock [Member] | ' |
Number of Performance-Based Restricted Stock Units and Restricted Shares | ' |
Number of Stock, Beginning Balance | 57 |
Number of Stock, Granted | 29 |
Number of Stock, Exercised | 14 |
Number of Stock, Forfeited | 0 |
Number of Stock, Ending Balance | 72 |
Weighted-Average Grant Date Fair Value | ' |
Weighted-Average Grant Fair Value, Beginning Balance (in dollars per share) | $51.99 |
Weighted-Average Grant Fair Value, Granted (in dollars per share) | $38.25 |
Weighted-Average Grant Fair Value, Exercised (in dollars per share) | $64.30 |
Weighted-Average Grant Fair Value, Forfeited (in dollars per share) | $0 |
Weighted-Average Grant Fair Value, Ending Balance (in dollars per share) | $43.69 |
Restricted Stock Units [Member] | ' |
Number of Performance-Based Restricted Stock Units and Restricted Shares | ' |
Number of Stock, Beginning Balance | 0 |
Number of Stock, Granted | 23 |
Number of Stock, Exercised | 0 |
Number of Stock, Forfeited | 1 |
Number of Stock, Ending Balance | 22 |
Weighted-Average Grant Date Fair Value | ' |
Weighted-Average Grant Fair Value, Beginning Balance (in dollars per share) | $0 |
Weighted-Average Grant Fair Value, Granted (in dollars per share) | $50.53 |
Weighted-Average Grant Fair Value, Exercised (in dollars per share) | $0 |
Weighted-Average Grant Fair Value, Forfeited (in dollars per share) | $52.59 |
Weighted-Average Grant Fair Value, Ending Balance (in dollars per share) | $50.47 |