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Segment Information - Disclosure by Reportable Segment and Reconciliation of Total Operating Segment Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Jun. 29, 2019 | Jun. 30, 2018 | Jun. 29, 2019 | Jun. 30, 2018 | Sep. 29, 2018
Revenues [Abstract] |  |  |  |  |
Total revenues | $ 214,212 | $ 241,936 | $ 1,095,693 | $ 1,151,495 |
Operating (loss) income: |  |  |  |  |
Total operating (loss) income | (8,784) | 4,233 | 181,840 | 188,557 |
Reconciliation to net (loss) income: |  |  |  |  |
Interest expense, net | 18,906 | 19,512 | 58,041 | 58,428 |
Other, net | 1,176 | 1,172 | 3,527 | 3,518 |
Provision for (benefit from) income taxes | 175 | 144 | 578 | (749) |
Net (loss) income | (29,041) | (16,595) | 119,694 | 127,360 |
Depreciation and amortization [Abstract] |  |  |  |  |
Total depreciation and amortization | 30,151 | 31,259 | 90,845 | 94,593 |
Assets [Abstract] |  |  |  |  |
Total assets | 2,035,143 |  | 2,035,143 |  | $ 2,101,199
Operating/Reportable Segments [Member] | Propane [Member] |  |  |  |  |
Revenues [Abstract] |  |  |  |  |
Total revenues | 183,052 | 205,400 | 937,468 | 990,344 |
Operating (loss) income: |  |  |  |  |
Total operating (loss) income | 21,038 | 29,245 | 254,159 | 249,363 |
Depreciation and amortization [Abstract] |  |  |  |  |
Total depreciation and amortization | 26,828 | 27,875 | 81,722 | 83,944 |
Assets [Abstract] |  |  |  |  |
Total assets | 1,933,169 |  | 1,933,169 |  | 1,995,060
Operating/Reportable Segments [Member] | Fuel Oil and Refined Fuels [Member] |  |  |  |  |
Revenues [Abstract] |  |  |  |  |
Total revenues | 12,921 | 15,400 | 83,428 | 82,414 |
Operating (loss) income: |  |  |  |  |
Total operating (loss) income | (1,084) | (891) | 10,457 | 10,132 |
Depreciation and amortization [Abstract] |  |  |  |  |
Total depreciation and amortization | 594 | 571 | 1,619 | 1,866 |
Assets [Abstract] |  |  |  |  |
Total assets | 46,772 |  | 46,772 |  | 47,911
Operating/Reportable Segments [Member] | Natural Gas and Electricity [Member] |  |  |  |  |
Revenues [Abstract] |  |  |  |  |
Total revenues | 7,527 | 10,403 | 38,527 | 43,942 |
Operating (loss) income: |  |  |  |  |
Total operating (loss) income | 1,059 | 2,192 | 8,772 | 11,131 |
Depreciation and amortization [Abstract] |  |  |  |  |
Total depreciation and amortization | 0 | 0 | 0 | 0 |
Assets [Abstract] |  |  |  |  |
Total assets | 12,035 |  | 12,035 |  | 13,067
Operating/Reportable Segments [Member] | All Other [Member] |  |  |  |  |
Revenues [Abstract] |  |  |  |  |
Total revenues | 10,712 | 10,733 | 36,270 | 34,795 |
Operating (loss) income: |  |  |  |  |
Total operating (loss) income | (5,018) | (4,607) | (13,814) | (14,821) |
Depreciation and amortization [Abstract] |  |  |  |  |
Total depreciation and amortization | 49 | 57 | 149 | 163 |
Assets [Abstract] |  |  |  |  |
Total assets | 3,753 |  | 3,753 |  | 3,363
Operating/Reportable Segments [Member] | Corporate [Member] |  |  |  |  |
Operating (loss) income: |  |  |  |  |
Total operating (loss) income | (24,779) | (21,706) | (77,734) | (67,248) |
Depreciation and amortization [Abstract] |  |  |  |  |
Total depreciation and amortization | 2,680 | $ 2,756 | 7,355 | $ 8,620 |
Assets [Abstract] |  |  |  |  |
Total assets | $ 39,414 |  | $ 39,414 |  | $ 41,798

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