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Unit-Based Compensation Arrangements (Tables)
 12 Months Ended
Sep. 30, 2017
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Summary of activity In the Restricted Unit Plans

The following is a summary of activity in the Restricted Unit Plan:

 

 

 

 

 

 

 

Weighted Average

 

 

 

 

 

 

 

Grant Date Fair

 

 

 

Units

 

 

Value Per Unit

 

Outstanding September 27, 2014

 

 

694,927

 

 

$

32.07

 

Awarded

 

 

154,403

 

 

 

37.59

 

Forfeited

 

 

(7,607

)

 

 

(31.04

)

Vested

 

 

(214,324

)

 

 

(36.68

)

Outstanding September 26, 2015

 

 

627,399

 

 

 

31.87

 

Awarded

 

 

307,559

 

 

 

23.62

 

Forfeited

 

 

(12,057

)

 

 

(25.44

)

Vested (1)

 

 

(268,781

)

 

 

(35.19

)

Outstanding September 24, 2016

 

 

654,120

 

 

 

26.74

 

Awarded

 

 

323,715

 

 

 

21.00

 

Forfeited

 

 

(6,737

)

 

 

(23.51

)

Vested (1)

 

 

(350,053

)

 

 

(29.74

)

Outstanding September 30, 2017

 

 

621,045

 

 

$

22.10

 

 

(1)

During fiscal 2017 and 2016, the Partnership withheld 34,883 and 10,477, respectively, Common Units from participants for income tax withholding purposes for those executive officers of the Partnership whose shares of restricted units vested during the period.