Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity and Share-Based Compensation - Stock Option Exchange Program (Detail)

v3.3.1.900
Stockholders' Equity and Share-Based Compensation - Stock Option Exchange Program (Detail)
$ / shares in Units, shares in Thousands, $ in Thousands
12 Months Ended
Sep. 10, 2013
USD ($)
employee
$ / shares
shares
Aug. 12, 2013
Jul. 09, 2013
$ / shares
shares
Jan. 02, 2016
$ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Exercise price of shares issued under exchange program       $ 1.45
Stock Option Exchange Program        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Exercise price of shares issued under exchange program     $ 4.00  
Share exchange ratio per share   3.5    
Shares issued under exchange program | shares     3,733  
Stock options vesting period 4 years   4 years  
Stock options vesting, description       The terms and conditions of the new options are subject to an entirely new four year vesting schedule where 25% will vest on the first anniversary, and the remaining 75% will vest monthly over the following 36 months. All new options have a ten year contractual term.
Contractual term     10 years  
Exercisable options | shares 3,475      
Stock options exercised, weighted average exercise price $ 6.65      
Eligible employees | employee 45      
Unvested exercisable options | shares 993      
Unvested exercisable options exercise price $ 0.9866      
Incremental fair value on the date of exchange | $ $ 422      
Stock Option Exchange Program | Stock Options Vesting in Year One        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock options vested, percentage     25.00%  
Stock Option Exchange Program | Stock Options Vesting After Year One        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock options vesting period     36 months  
Stock options vested, percentage     75.00%  
Minimum | Stock Option Exchange Program        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock option exercise price, minimum     $ 4.01  
Maximum | Stock Option Exchange Program        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock option exercise price, maximum     $ 11.68