Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Retirement Plan - Additional Information (Detail)

v3.3.1.900
Retirement Plan - Additional Information (Detail) - USD ($)
12 Months Ended
Jan. 01, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Defined Contribution Plan Disclosure [Line Items]        
Percentage of employees contribution   50.00%    
Employee's contribution to retirement plan   4.00%    
Percentage of company match   2.00%    
Employers contribution   $ 493,000 $ 358,000 $ 275,000
Subsequent Event [Member]        
Defined Contribution Plan Disclosure [Line Items]        
Percentage of employees contribution 75.00%      
Employee's contribution to retirement plan 4.00%      
Percentage of company match 3.00%