XML 128 R117.htm IDEA: XBRL DOCUMENT v3.8.0.1
EMPLOYEE STOCK COMPENSATION - Nonvested Stock Option Activity (Detail) - $ / shares
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2017
Number of Shares    
Non-vested outstanding at beginning of period (in shares) 265,730 518,936
Vested (in shares) (17,627) (174,833)
Forfeited (in shares) (46,671) (142,671)
Non-vested outstanding at end of period (in shares) 201,432 201,432
Weighted- Average Exercise Price per Share    
Non-vested outstanding at beginning of period (in dollars per share) $ 14.65 $ 15.04
Vested (in dollars per share) 13.03 14.10
Forfeited (in dollars per share) 12.41 15.84
Non-vested outstanding at end of period (in dollars per share) $ 15.31 $ 15.31