XML 144 R120.htm IDEA: XBRL DOCUMENT v3.6.0.2
Share-Based Compensation - Summary of Option Activity Under 2013 Plan (Detail) - Option Activity Under the 2013 Plan [Member]
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2016
USD ($)
$ / shares
shares
Schedule Of Stock Option Activity [Line Items]  
Option outstanding, Shares, Beginning balance | shares 181,627
Option granted, Shares | shares 103,959
Option Exercised, Shares | shares (1,500)
Option forfeited, Shares | shares 0
Option outstanding, Shares, Ending balance | shares 284,086
Option Exercisable, Shares, Ending balance | shares 120,957
Option outstanding, Weighted Average Exercise Price, Beginning balance | $ / shares $ 14.72
Option Granted, Weighted Average Exercise Price | $ / shares 15.57
Option Exercised, Weighted Average Exercise Price | $ / shares 13.49
Option Forfeited, Weighted Average Exercise Price | $ / shares 0
Option Outstanding, Weighted Average Exercise Price, Ending balance | $ / shares 15.04
Option Exercisable, Weighted Average Exercise Price, Ending balance | $ / shares $ 14.33
Option Outstanding, Weighted Average Remaining Contractual Term 7 years 11 months 27 days
Option Exercisable, Weighted Average Remaining Contractual Term 7 years
Option outstanding, Aggregate Intrinsic Value | $ $ 3,682,975
Option Exercisable, Aggregate Intrinsic Value | $ $ 1,653,164