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Basis of Presentation - Narrative (Details) a in Thousands |  | 3 Months Ended |
--- | --- | --- | ---
Oct. 01, 2018 USD ($) | Dec. 31, 2018 USD ($) a classification segment | Dec. 31, 2017 USD ($) | Sep. 30, 2018 USD ($)
Property, Plant and Equipment [Line Items] |  |  |  |
Number of business segments | segment |  | 2 |  |
Accounts receivable, net |  | $ 6,842,000 |  | $ 2,544,000
Citree |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Net income (loss) attributable to noncontrolling interest |  | $ (73,502) | $ (16,219) |
Land |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Area of land owned (in acres) | a |  | 117 |  |
Number of primary classifications | classification |  | 2 |  |
Mineral Rights |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Area of land owned (in acres) | a |  | 90 |  |
Citree |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Ownership interest (as a percent) |  | 51.00% |  |
Citrus |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Accounts receivable, net |  | $ 6,848,000 |  | $ 2,471,000
Discontinued Operations, Disposed of by Sale | ASC 610-20 |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Net adjustment to retained earnings | $ 14,617,000 |  |  |

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