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Employee Stock Benefit Plans - Additional Information (Detail) (USD $)
In Millions, except Share data, unless otherwise specified
6 Months Ended 12 Months Ended 6 Months Ended 12 Months Ended 6 Months Ended 12 Months Ended 3 Months Ended
Jun. 28, 2014
2005 Equity Incentive Plan [Member]
Jun. 28, 2014
Employee Stock Options [Member]
Jun. 28, 2014
Employee Stock Options [Member]
Minimum [Member]
Jun. 28, 2014
Employee Stock Options [Member]
Maximum [Member]
Jun. 28, 2014
Restricted Stock Units [Member]
Jun. 28, 2014
Restricted Stock Units [Member]
Minimum [Member]
Jun. 28, 2014
Restricted Stock Units [Member]
Maximum [Member]
Jun. 28, 2014
Equity-Based Performance Stock Units [Member]
Dec. 28, 2013
Equity-Based Performance Stock Units [Member]
Senior Executives [Member]
Jun. 28, 2014
Equity-Based Performance Stock Units [Member]
Minimum [Member]
Dec. 28, 2013
Equity-Based Performance Stock Units [Member]
Minimum [Member]
Senior Executives [Member]
Jun. 28, 2014
Equity-Based Performance Stock Units [Member]
Maximum [Member]
Dec. 28, 2013
Equity-Based Performance Stock Units [Member]
Maximum [Member]
Senior Executives [Member]
Jun. 28, 2014
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Shares available for equity grants 785,862                         250,930
Range of period in which vested stock expire   10 years                        
Maximum period in which vested stock become exercisable     1 year 4 years   1 year 4 years 3 years            
Stock options outstanding   2,812,323                        
Weighted-average exercise price of stock options   $ 11.71                        
Aggregate intrinsic value of stock options   $ 2.9     $ 11.8     $ 3.6            
Weighted average remaining contractual term stock options   5 years 1 month 6 days                        
Stock options outstanding, Exercisable   2,195,574                        
Weighted-average exercise price of stock options, Exercisable   $ 12.02                        
Aggregate intrinsic value of stock options, Exercisable   $ 2.6                        
Weighted average remaining contractual term stock options, Exercisable   4 years 2 months 12 days                        
Number of common share granted         492,238                  
Units outstanding         1,109,297     333,875            
Weighted average remaining vesting period         1 year 8 months 12 days     1 year 9 months 18 days            
Award measurement period               1 year            
Common stock granted on achievement of performance goals                   0.00%   150.00%    
Number of stock units awarded                 208,015          
Shareholders return adjustment range                     75.00%   125.00%  
Rate of shares vest                 50.00%          
Percentage of fair value of common stock, common stock price                           85.00%
Shares issued under Employee Stock Purchase Plan                           71,492