Quarterly report pursuant to Section 13 or 15(d)

Summary of Restricted Share Units Activity (Detail)

v3.5.0.2
Summary of Restricted Share Units Activity (Detail) - Restricted Share Units
9 Months Ended
Sep. 30, 2016
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares  
Number of Restricted Shares, Shares Granted | shares 102,350
Number of Restricted Shares, Shares Vested | shares (3,333)
Number of Restricted Shares, Ending Balance | shares 99,017
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value  
Weighted Average Grant Date Fair Value Per Share, Shares Granted | $ / shares $ 7.16
Weighted Average Grant Date Fair Value Per Share, Shares Vested | $ / shares 10.30
Weighted Average Grant Date Fair Value Per Share, Ending Balance | $ / shares $ 7.05