Annual report pursuant to Section 13 and 15(d)

SHARE-BASED PAYMENTS - Restricted Stock Activity (Details)

v3.10.0.1
SHARE-BASED PAYMENTS - Restricted Stock Activity (Details) - Restricted Stock
12 Months Ended
Sep. 30, 2018
$ / shares
shares
All Plans  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]  
Non-vested at beginning of period (in shares) | shares 501,184
Granted (in shares) | shares 234,100
Vested (in shares) | shares (174,295)
Expired or forfeited (in shares) | shares (6,756)
Non-vested at end of period (in shares) | shares 554,233
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]  
Non-vested weighted-average grant-date fair value, beginning of period (in dollars per share) | $ / shares $ 53.65
Granted, weighted-average grant-date fair value (in dollars per share) | $ / shares 57.05
Vested, weighted-average grant-date fair value (in dollars per share) | $ / shares 51.41
Expired or forfeited, weighted-average grant-date fair value (in dollars per share) | $ / shares 59.72
Non-vested weighted-average grant-date fair value, end of period (in dollars per share) | $ / shares $ 55.71
After 3 Years | Prior to Fiscal Year 2013 | All Plans  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 50.00%
After 3 Years | Fiscal 2013 and Thereafter | All Plans  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 50.00%
After 4 Years | Prior to Fiscal Year 2013 | All Plans  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 16.67%
After 4 Years | Fiscal 2013 and Thereafter | After 5 Years  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 8.33%
After 4 Years | Fiscal 2013 and Thereafter | After 6 Years  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 8.33%
After 5 Years | Prior to Fiscal Year 2013 | All Plans  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 16.67%
After 5 Years | Fiscal 2013 and Thereafter | After 5 Years  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 8.33%
After 5 Years | Fiscal 2013 and Thereafter | After 6 Years  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 8.33%
After 6 Years | Prior to Fiscal Year 2013 | All Plans  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 16.66%
After 6 Years | Fiscal 2013 and Thereafter | After 5 Years  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 8.33%
After 6 Years | Fiscal 2013 and Thereafter | After 6 Years  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 8.33%