XML 60 R49.htm IDEA: XBRL DOCUMENT v3.5.0.2
STOCK BASED COMPENSATION - Restricted Stock Units Activity (Detail)
$ / shares in Units, $ in Thousands
9 Months Ended
Sep. 30, 2016
USD ($)
$ / shares
shares
Number of Restricted Stock Units  
Non-vested at beginning of year | shares 71,451
Granted | shares 76,712
Forfeited | shares (22,788)
Non-vested at September 30, 2016 | shares 125,375
Weighted Average Grant Date Fair Value Per Share  
Non-vested at beginning of year | $ / shares $ 101.29
Granted | $ / shares 106.38
Forfeited | $ / shares 103.25
Non-vested at September 30, 2016 | $ / shares $ 104.05
Weighted Average Remaining Contractual Life  
Non-vested at September 30, 2016 1 year 11 months 27 days
Total Aggregate Intrinsic Value  
Non-vested at September 30, 2016 | $ $ 10,048