Stock-Based Compensation - Summary of Company's Stock Option, Performance Share Unit and Restricted Share Activity (Detail) (USD $) | 3 Months Ended |
In Thousands, except Per Share data, unless otherwise specified | 4-May-14 |
Stock Options [Member] | ' |
Number | ' |
Number of Stock Options, Beginning Balance | 669 |
Number of Stock Options, Granted | 204 |
Number of Stock Options, Exercised | 65 |
Number of Stock Options, Forfeited | 9 |
Number of Stock Options, Ending Balance | 799 |
Exercisable | 407 |
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) | $52.47 |
Weighted-Average Exercise Price, Options, Exercised (in dollars per share) | $24.37 |
Weighted-Average Exercise Price, Options, Forfeited (in dollars per share) | $65.43 |
Weighted-Average Exercise Price, Options, Ending Balance (in dollars per share) | $36.40 |
Exercisable (in dollars per share) | $19.29 |
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 | 295 |
Number of Stock, Exercised | 146 |
Number of Stock, Forfeited | 9 |
Number of Stock, Ending Balance | 568 |
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) | $50.08 |
Weighted-Average Grant Fair Value, Exercised (in dollars per share) | $37.99 |
Weighted-Average Grant Fair Value, Forfeited (in dollars per share) | $63.21 |
Weighted-Average Grant Fair Value, Ending Balance (in dollars per share) | $58.27 |
Restricted Stock [Member] | ' |
Number of Performance-Based Restricted Stock Units and Restricted Shares | ' |
Number of Stock, Beginning Balance | 57 |
Number of Stock, Granted | 0 |
Number of Stock, Exercised | 0 |
Number of Stock, Forfeited | 0 |
Number of Stock, Ending Balance | 57 |
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) | $0 |
Weighted-Average Grant Fair Value, Exercised (in dollars per share) | $0 |
Weighted-Average Grant Fair Value, Forfeited (in dollars per share) | $0 |
Weighted-Average Grant Fair Value, Ending Balance (in dollars per share) | $51.99 |
Restricted Stock Units [Member] | ' |
Number of Performance-Based Restricted Stock Units and Restricted Shares | ' |
Number of Stock, Beginning Balance | 0 |
Number of Stock, Granted | 20 |
Number of Stock, Exercised | 0 |
Number of Stock, Forfeited | 0 |
Number of Stock, Ending Balance | 20 |
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) | $52.59 |
Weighted-Average Grant Fair Value, Exercised (in dollars per share) | $0 |
Weighted-Average Grant Fair Value, Forfeited (in dollars per share) | $0 |
Weighted-Average Grant Fair Value, Ending Balance (in dollars per share) | $52.59 |