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Unit-Based Compensation Arrangements (Tables)
 6 Months Ended
Mar. 31, 2018
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Summary of activity for the Restricted Unit Plans

The following is a summary of activity for the Restricted Unit Plan for the six months ended March 31, 2018:

 

 

 

 

 

 

 

Weighted Average

 

 

 

Restricted

 

 

Grant Date Fair

 

 

 

Units

 

 

Value Per Unit

 

Outstanding September 30, 2017

 

 

621,045

 

 

$

22.10

 

Awarded

 

 

424,431

 

 

 

19.52

 

Forfeited

 

 

(12,659

)

 

 

(19.73

)

Vested (with Common Units issued)

 

 

(333,346

)

 

 

(24.41

)

Outstanding March 31, 2018

 

 

699,471

 

 

$

19.48