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Segment Information - Disclosure by Reportable Segment and Reconciliation of Total Operating Segment Information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 24, 2016 | Sep. 26, 2015 | Sep. 27, 2014
Revenues [Abstract] |  |  |
Total revenues | $ 1,046,111 | $ 1,416,979 | $ 1,938,257
Operating income (loss) [Abstract]: |  |  |
Total operating income | 90,406 | 177,758 | 190,126
Reconciliation to net income: |  |  |
Loss on debt extinguishment | 292 | 15,072 | 11,589
Interest expense, net | 75,086 | 77,634 | 83,261
Provision for income taxes | 588 | 700 | 767
Net income | 14,440 | 84,352 | 94,509
Depreciation and amortization [Abstract] |  |  |
Total depreciation and amortization | 129,616 | 133,294 | 136,399
Assets [Abstract] |  |  |
Total assets | 2,295,969 | 2,485,730 |
Operating/Reportable Segments [Member] | Propane [Member] |  |  |
Revenues [Abstract] |  |  |
Total revenues | 884,169 | 1,176,980 | 1,606,840
Operating income (loss) [Abstract]: |  |  |
Total operating income | 184,213 | 280,761 | 295,916
Depreciation and amortization [Abstract] |  |  |
Total depreciation and amortization | 110,067 | 110,728 | 106,491
Assets [Abstract] |  |  |
Total assets | 2,141,108 | 2,209,343 |
Operating/Reportable Segments [Member] | Fuel Oil and Refined Fuels [Member] |  |  |
Revenues [Abstract] |  |  |
Total revenues | 68,759 | 127,495 | 194,684
Operating income (loss) [Abstract]: |  |  |
Total operating income | 5,649 | 7,621 | 2,473
Depreciation and amortization [Abstract] |  |  |
Total depreciation and amortization | 2,725 | 3,885 | 5,429
Assets [Abstract] |  |  |
Total assets | 53,266 | 58,077 |
Operating/Reportable Segments [Member] | Natural Gas and Electricity [Member] |  |  |
Revenues [Abstract] |  |  |
Total revenues | 50,763 | 66,865 | 87,093
Operating income (loss) [Abstract]: |  |  |
Total operating income | 10,755 | 14,614 | 10,818
Depreciation and amortization [Abstract] |  |  |
Total depreciation and amortization | 3 | 8 | 46
Assets [Abstract] |  |  |
Total assets | 13,415 | 13,253 |
Operating/Reportable Segments [Member] | All Other [Member] |  |  |
Revenues [Abstract] |  |  |
Total revenues | 42,420 | 45,639 | 49,640
Operating income (loss) [Abstract]: |  |  |
Total operating income | (25,945) | (25,409) | (25,644)
Depreciation and amortization [Abstract] |  |  |
Total depreciation and amortization | 304 | 288 | 699
Assets [Abstract] |  |  |
Total assets | 2,185 | 2,888 |
Operating/Reportable Segments [Member] | Corporate [Member] |  |  |
Operating income (loss) [Abstract]: |  |  |
Total operating income | (84,266) | (99,829) | (93,437)
Depreciation and amortization [Abstract] |  |  |
Total depreciation and amortization | 16,517 | 18,385 | $ 23,734
Assets [Abstract] |  |  |
Total assets | $ 85,995 | $ 202,169 |

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