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Property and Equipment, Net - Narrative (Details) $ in Thousands |  |  |  |  | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 28, 2018 USD ($) | Mar. 30, 2018 USD ($) | Mar. 15, 2018 USD ($) | Nov. 21, 2014 USD ($) a | Jun. 30, 2018 USD ($) | Sep. 30, 2018 USD ($) | Sep. 30, 2017 USD ($) | Sep. 30, 2016 USD ($) | Sep. 29, 2018 USD ($) | Feb. 02, 2017 USD ($) a
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Gain on sale of real estate, property and equipment and assets held for sale |  |  |  |  |  | $ 11,041 | $ 2,181 | $ 618 |  |
Hendry County Florida |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Net cash proceeds |  |  |  | $ 97,900 |  |  |  |  |  |
Gain (loss) recognized in sale of property |  |  |  | $ (42,172) |  |  |  |  |  |
Land held for sale (in acres) | a |  |  |  | 36,000 |  |  |  |  |  |
Disposed of by Sale |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Impairment loss |  |  |  |  |  | 2,084 |  |  |  |
Disposed of by Sale | Island Pond |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Net cash proceeds |  |  |  |  |  |  |  |  | $ 7,900 |
Impairment loss |  |  |  |  |  | 1,032 |  |  |  |
Disposed of by Sale | East Ranch Parcels |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Net cash proceeds | $ 1,920 |  |  |  |  |  |  |  |  |
Gain (loss) recognized in sale of property | $ 1,759 |  |  |  |  |  |  |  |  |
Disposed of by Sale | Winter Haven |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Net cash proceeds |  | $ 225 |  |  |  |  |  |  |  |
Gain (loss) recognized in sale of property |  | $ (50) |  |  |  |  |  |  |  |
Disposed of by Sale | Ranch One Grove |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Net cash proceeds |  |  | $ 586 |  |  |  |  |  |  |
Gain (loss) recognized in sale of property |  |  | $ (87) |  |  |  |  |  |  |
Disposed of by Sale | Hendry County Florida |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Net cash proceeds |  |  |  |  |  |  |  |  |  | $ 2,200
Land held for sale (in acres) | a |  |  |  |  |  |  |  |  |  | 49
Gain on sale of real estate, property and equipment and assets held for sale |  |  |  |  |  | 1,371 |  |  |  |
Disposed of by Sale | Citrus trees |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Impairment loss |  |  |  |  |  | $ 1,052 |  |  |  |
Held-for-sale |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Impairment loss |  |  |  |  | $ 1,855 |  | $ 5,215 |  |  |
Restricted Cash | Disposed of by Sale | Island Pond |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Net cash proceeds |  |  |  |  |  |  |  |  | $ 7,000 |

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