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Stock-Based Compensation Expense (Detail)
3 Months Ended 9 Months Ended
Oct. 01, 2017
USD ($)
group
$ / shares
shares
Apr. 02, 2017
USD ($)
Oct. 02, 2016
USD ($)
$ / shares
Apr. 03, 2016
USD ($)
Oct. 01, 2017
USD ($)
group
$ / shares
shares
Oct. 02, 2016
USD ($)
$ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Expected dividend yield 0.39%   0.84%   0.39% 0.84%
Groups within the employee population | group 2       2  
Percentage of stock options granted to senior management expected to vest 75.00%       75.00%  
Percentage of stock options granted to all other employees expected to vest 72.00%       72.00%  
Estimated annual forfeiture rate for unvested options for senior management 10.00%       10.00%  
Estimated annual forfeiture rate for unvested options for all other employees 12.00%       12.00%  
Increase (decrease) to compensation expense   $ 673,000   $ 334,000    
Weighted-average grant-date fair values, in dollars per share | $ / shares $ 29.59   $ 12.34   $ 29.94 $ 12.25
Total intrinsic value $ 28,462,000   $ 23,139,000   $ 100,913,000 $ 32,514,000
Total fair values of stock options vest 844,000   679,000   19,557,000 16,724,000
Unrecognized compensation expense 41,354,000       $ 41,354,000  
Weighted average period to be recognized         1 year 8 months 1 day  
Stock-based compensation expense 8,026,000   4,622,000   $ 23,355,000 15,883,000
Tax benefit from compensation expense 2,639,000   $ 1,520,000   7,661,000 $ 5,210,000
Recognized period costs capitalized $ 0       $ 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 6,183,376       6,183,376  
Expiration period from grant day         10 years