XML 67 R56.htm IDEA: XBRL DOCUMENT v3.7.0.1
Stock-Based Compensation Expense (Detail)
3 Months Ended 6 Months Ended
Jul. 02, 2017
USD ($)
group
$ / shares
shares
Apr. 02, 2017
USD ($)
Jul. 03, 2016
USD ($)
$ / shares
Apr. 03, 2016
USD ($)
Jul. 02, 2017
USD ($)
group
$ / shares
shares
Jul. 03, 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 $ 31.01   $ 12.22   $ 29.95 $ 12.25
Total intrinsic value $ 19,408,000   $ 5,652,000   $ 72,451,000 $ 9,376,000
Total fair values of stock options vest 725,000   709,000   18,713,000 16,045,000
Unrecognized compensation expense 48,313,000       $ 48,313,000  
Weighted average period to be recognized         1 year 10 months 21 days  
Stock-based compensation expense 7,846,000   4,457,000   $ 15,329,000 11,261,000
Tax benefit from compensation expense 2,583,000   $ 1,462,000   5,022,000 $ 3,690,000
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 6,205,027       6,205,027  
Expiration period from grant day         10 years