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Net Income Per Common Unit
9 Months Ended
Jun. 25, 2011
Net Income Per Common Unit [Abstract]  
Net Income Per Common Unit
6.
Net Income Per Common Unit

Computations of basic income per Common Unit are performed by dividing net income by the weighted average number of outstanding Common Units, and restricted units granted under the restricted unit plans to retirement-eligible grantees.  Computations of diluted income per Common Unit are performed by dividing net income by the weighted average number of outstanding Common Units and unvested restricted units granted under the restricted unit plans.  In computing diluted net income per Common Unit, weighted average units outstanding used to compute basic net income per Common Unit were increased by 194,668 and 225,238 units for the nine months ended June 25, 2011 and June 26, 2010, respectively, to reflect the potential dilutive effect of the unvested restricted units outstanding using the treasury stock method.