Annual report pursuant to Section 13 and 15(d)

Share-based Compensation - Share-Based Compensation Expense and Related Tax Benefits (Detail)

v3.3.1.900
Share-based Compensation - Share-Based Compensation Expense and Related Tax Benefits (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]      
Share-based compensation expense $ 2,241 $ 2,165 $ 705
Related tax benefits $ 755 $ 516 $ 32