Common Unit Repurchase and Retirement (Tables)

12 Months Ended

Sep. 30, 2012

Common Unit Repurchase and Retirement [Abstract]

Partnership's repurchase activities

Period	Total Number of Units Purchased as Part of a Publicly Announced Plan or Program		Average Price Paid per Unit (a)		Maximum Number of Units that May Yet Be Purchased Under the Program
Plan II - Number of units authorized						7,250
Plan II - Fiscal year 2010 total		1,197	$	4.44		6,053
Plan II - Fiscal year 2011 total (b)		2,108	$	5.19		3,945
Plan II - First quarter fiscal year 2012 total (c)		2,448	$	5.17		1,497
Plan II - Second quarter fiscal year 2012 total		1,497	$	4.62		—
Plan II - Fiscal year 2012 total		3,945	$	4.96		—
Plan II - Total number of units repurchased		7,250	$	4.94		—
Plan III - Number of units authorized (d)						3,000
Plan III - July 2012		—	$	—		3,000
Plan III - August 2012		4	$	4.26		2,996
Plan III - September 2012		18	$	4.25		2,978
Plan III - Fourth quarter fiscal year 2012 total		22	$	4.26		2,978
Plan III - Fiscal year 2012 total		22	$	4.26		2,978

(a) Amounts include repurchase costs.

(b) Fiscal year 2011 common unit repurchases include 1.5 million common units acquired in a private sale.

(c) December 2011 common unit repurchases include 1.75 million common units acquired in a private sale.

(d) In July 2012, the Board authorized 3.0 million common units for repurchase.