Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plans - Additional Information (Detail)

v3.3.1.900
Employee Benefit Plans - Additional Information (Detail) - USD ($)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Compensation And Retirement Disclosure [Abstract]      
Maximum annual contributions per employee percent 15.00%    
Minimum age for employees to be covered under profit sharing plan 21 years    
Minimum service period for employees to be covered under profit sharing plan 6 months    
Vesting period for company contributions to benefit plan 6 years    
Employer contribution $ 0 $ 0 $ 0