XML 101 R79.htm IDEA: XBRL DOCUMENT v3.8.0.1
Stock Award Plans - Nonvested Restricted Stock (Details) - Restricted Stock - $ / shares
12 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Outstanding at beginning of period (in shares) 490,363 521,302 515,845
Granted (in shares) 238,450 229,450 301,750
Vested (in shares) (116,878) (165,965) (223,043)
Forfeited (in shares) (145,254) (94,424) (73,250)
Outstanding at end of period (in shares) 466,681 490,363 521,302
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]      
Outstanding, weighted average grant date fair value, beginning of period (in dollars per share) $ 16.00 $ 15.03 $ 14.10
Granted, weighted average grant date fair value (in dollars per share) 18.89 17.20 14.26
Vested, weighted average grant date fair value (in dollars per share) 20.95 15.96 13.24
Forfeited, weighted average grant date fair value (in dollars per share) 8.56 13.64 10.72
Outstanding, weighted average grant date fair value, end of period (in dollars per share) $ 18.56 $ 16.00 $ 15.03