v2.4.0.8
Share-Based Compensation - Employee Stock Purchase Plan - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
1 Months Ended 12 Months Ended
Nov. 16, 2012
Employees
May 16, 2012
Employees
May 16, 2011
Employees
Jun. 29, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period of the underlying awards       3 years
Employee Stock Purchase Plan [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock purchases under Employee Stock Purchase Plan as a percentage of employee compensation, maximum, subject to legal restrictions and limitations       15.00%
Employee common stock purchases through payroll deductions under Employee Stock Purchase Plan, price as a percentage of fair market value       85.00%
Offering period extends under Employee Stock Purchase Plan       Up to two years
Vesting period of the underlying awards       2 years
Number of employees affected due to modification to the terms of the related awards 474 491 437  
Expected lives of the implied volatility       6 months
Historical volatility for expected lives       6 months
Unrecognized share-based compensation costs for stock options granted       $ 5.7
Period over which share-based compensation is amortized duration       16 months