Employee Benefit Plan (Tables)

12 Months Ended

Sep. 30, 2012

Employee Pension Plan [Abstract]

Participation and contributions to multiemployer pension plans

		Pension Protection Act Zone Status		FIP / RP Status	Partnership Contributions (in thousands)
Pension Fund	EIN / Pension Plan Number	2012	2011	Pending / Implemented	2012		2011		2010		Surcharge Imposed		Expiration Date of Collective- Bargaining Agreement
New England Teamsters & Trucking Industry Pension Fund	04-6372430 / 001	Yellow	Red	N/A	$	2,532	$	2,512	$	2,790		No		03/31/2014
Westchester Teamsters Pension Fund	13-6123973 / 001	Green	Green	N/A		771		817		908		No		01/31/2014
Local 553 Pension Fund	13-6637826 / 001	Green	Green	N/A		2,152		2,082		2,313		No		01/15/2014
Local 463 Pension Fund	11-1800729 / 001	Green	Red	N/A		155		155		172		No		02/28/2014
All Other Multiemployer Pension Plans						1,627		1,364		1,514
				Total Contributions	$	7,237	$	6,930	$	7,697

Net periodic benefit cost for the period, a reconciliation of the changes in the Plan assets, projected benefit obligations, and the amounts recognized in other comprehensive income and accumulated other comprehensive income

Debit / (Credit)	Net Periodic Pension Cost in Income Statement			Cash			Fair Value of Pension Plan Assets			Projected Benefit Obligation			Other Comprehensive (Income) / Loss			Gross Pension Related Accumulated Other Comprehensive Income
Fiscal Year 2010
Beginning balance							$	37,587		$	(62,265	)				$	31,235
Interest cost		3,250									(3,250	)
Actual return on plan assets		(2,666	)					2,666
Employer contributions					(13,107	)		13,107
Benefit payments								(4,037	)		4,037
Investment and other expenses		(460	)								460
Difference between actual and expected return on plan assets		276												(276	)
Anticipated expenses		188									(188	)
Actuarial loss											(4,716	)		4,716
Amortization of unrecognized net actuarial loss		2,463												(2,463	)
Annual cost/change	$	3,051		$	(13,107	)		11,736			(3,657	)	$	1,977			1,977
Ending balance							$	49,323		$	(65,922	)				$	33,212
Funded status at the end of the year										$	(16,599	)
Fiscal Year 2011
Interest cost		2,993									(2,993	)
Actual return on plan assets		(3,984	)					3,984
Employer contributions					(3,224	)		3,224
Benefit payments								(4,097	)		4,097
Investment and other expenses		(377	)								377
Difference between actual and expected return on plan assets		597												(597	)
Anticipated expenses		246									(246	)
Actuarial loss											(3,191	)		3,191
Amortization of unrecognized net actuarial loss		2,765												(2,765	)
Annual cost/change	$	2,240		$	(3,224	)		3,111			(1,956	)	$	(171	)		(171	)
Ending balance							$	52,434		$	(67,878	)				$	33,041
Funded status at the end of the year										$	(15,444	)
Fiscal Year 2012
Interest cost		2,858									(2,858	)
Actual return on plan assets		(8,727	)					8,727
Employer contributions					(3,365	)		3,365
Benefit payments								(4,223	)		4,223
Investment and other expenses		(374	)								374
Difference between actual and expected return on plan assets		5,075												(5,075	)
Anticipated expenses		262									(262	)
Actuarial loss											(6,650	)		6,650
Amortization of unrecognized net actuarial loss		2,751												(2,751	)
Annual cost/change	$	1,845		$	(3,365	)		7,869			(5,173	)	$	(1,176	)		(1,176	)
Ending balance							$	60,303		$	(73,051	)				$	31,865
Funded status at the end of the year										$	(12,748	)

Weighted-Average Assumptions Used in the Measurement of the Partnership's Benefit Obligation

	September 30,
	2012			2011			2010
Weighted-Average Assumptions Used in the Measurement of the Partnership’s Benefit Obligation
Discount rate at year end date		3.50	%		4.35	%		4.70	%
Expected return on plan assets for the year ended		7.75	%		7.75	%		7.75	%
Rate of compensation increase		N/A			N/A			N/A

The fair values and percentage of the Partnership's pension plan assets by asset category

	Level 1		Level 2		Level 3		Total		Concentration Percentage
Asset Category at September 30, 2012
Corporate and U.S. government bond fund (1)		33,377		—		—		33,377		55	%
U.S. government and agency debt securities (1)		2,707		—		—		2,707		4	%
U.S. large-cap equity (1)		17,967		—		—		17,967		30	%
International equity (1)		5,938		—		—		5,938		10	%
Cash		314		—		—		314		1	%
Total		60,303		—		—		60,303		100	%

(1) Represent investments in Vanguard funds that seek to replicate the asset category description.