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Stock-Based Compensation Expense (Detail) | 3 Months Ended
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Apr. 03, 2016 USD ($) group $ / shares shares | Apr. 05, 2015 USD ($) $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Expected dividend yield | 0.84% | 1.25%
Groups within the employee population | group | 2 |
Percentage of stock options granted to senior management expected to vest | 77.00% |
Percentage of stock options granted to all other employees expected to vest | 72.00% |
Estimated annual forfeiture rate for unvested options for senior management | 9.00% |
Estimated annual forfeiture rate for unvested options for all other employees | 11.00% |
Increase (decrease) to compensation expense | $ 334,000 | $ 461,000
Weighted-average grant-date fair values, in dollars per share | $ / shares | $ 12.25 | $ 14.34
Total intrinsic value | $ 3,724,000 | $ 16,740,000
Total fair values of stock options vest | 15,337,000 | 13,523,000
Unrecognized compensation expense | $ 30,326,000 |
Weighted average period to be recognized | 2 years 1 month 2 days |
Stock-based compensation expense | $ 6,804,000 | 6,946,000
Tax benefit from compensation expense | 2,228,000 | $ 2,337,000
Recognized period costs capitalized | $ 0 |
Vesting period, performance-based restricted stock, years | 1 year |
Vesting period, time-based restricted stock, years | 3 years |
General Stock Option Plan |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Vesting period for stock option plans | 4 years |
Employee Stock Option |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Shares available for grant under stock option plans | shares | 8,224,951 |
Expiration period from grant day | 10 years |

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