Segment Information (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 28, 2013 Segment	Sep. 29, 2012	Sep. 24, 2011
Segment Information [Abstract]
Number of operating segments	5
Number of reportable segments	3
Revenues [Abstract]
Total revenues	$ 1,703,606	$ 1,063,458	$ 1,190,552
Operating income [Abstract]
Total operating income	176,976	41,657	143,228
Reconciliation to net income [Abstract]
Loss on debt extinguishment	2,144	2,249	0
Interest expense, net	95,427	38,633	27,378
Provision for income taxes	607	137	884
Net income	78,798	638	114,966
Depreciation and amortization [Abstract]
Total depreciation and amortization	130,384	47,034	35,628
Assets [Abstract]
Total assets	2,727,987	2,883,850
Propane [Member]
Revenues [Abstract]
Total revenues	1,357,103	843,648	929,492
Operating income [Abstract]
Total operating income	287,473	142,548	203,567
Depreciation and amortization [Abstract]
Total depreciation and amortization	104,533	34,826	19,525
Assets [Abstract]
Total assets	2,452,909	2,505,660
Fuel Oil and Refined Fuels [Member]
Revenues [Abstract]
Total revenues	208,957	114,288	139,572
Operating income [Abstract]
Total operating income	(2,799)	890	11,140
Depreciation and amortization [Abstract]
Total depreciation and amortization	4,634	3,652	4,139
Assets [Abstract]
Total assets	77,473	77,059
Natural Gas and Electricity [Member]
Revenues [Abstract]
Total revenues	79,432	67,419	84,721
Operating income [Abstract]
Total operating income	11,565	6,991	11,667
Depreciation and amortization [Abstract]
Total depreciation and amortization	198	464	897
Assets [Abstract]
Total assets	16,789	14,777
All Other [Member]
Revenues [Abstract]
Total revenues	58,114	38,103	36,767
Operating income [Abstract]
Total operating income	(26,483)	(17,239)	(13,750)
Depreciation and amortization [Abstract]
Total depreciation and amortization	638	345	111
Assets [Abstract]
Total assets	3,860	7,342
Corporate [Member]
Operating income [Abstract]
Total operating income	(92,780)	(91,533)	(69,396)
Depreciation and amortization [Abstract]
Total depreciation and amortization	20,381	7,747	10,956
Assets [Abstract]
Total assets	$ 176,956	$ 279,012