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EQUITY - Schedule of Restricted Share-Based Award Activity (Details) - USD ($)
$ / shares in Units, $ in Millions
6 Months Ended
Mar. 31, 2018
Apr. 01, 2017
No. of Units    
Granted (shares) 365,865.000000 612,719.000000
Restricted stock units    
No. of Units    
Awards outstanding, beginning balance (shares) 291,519  
Granted (shares) 130,362  
Vested (shares) (86,601)  
Forfeited (shares) 0  
Awards outstanding, ending balance (shares) 335,280  
Wtd. Avg. Grant Date Fair Value per Unit    
Awards outstanding, beginning balance (USD per share) $ 81.15  
Granted (USD per share) 90.86  
Vested (USD per share) 67.70  
Forfeited (USD per share) 0.00  
Awards outstanding, ending balance (USD per share) $ 88.39  
Compensation costs not yet recognized $ 8.3  
Weighted average period of compensation cost recognition 1 year 10 months 20 days