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Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Sep. 30, 2017 | Sep. 30, 2016
--- | --- | ---
Deferred tax assets: |  |
Deferred retirement benefits | $ 1,712 | $ 1,620
Inventories | 6,435 | 912
Alico-Agri, Ltd. outside basis differences | 0 | 474
Goodwill | 33,233 | 36,217
Deferred gain recognition | 10,601 | 10,964
Capital loss carryforwards | 9,462 | 9,702
Alternative minimum tax credits | 293 | 197
Net operating losses | 3,160 | 5,844
Intangibles | 1,027 | 763
Other | 158 | 3
Total deferred tax assets | 66,081 | 66,696
Deferred tax liabilities: |  |
Revenue recognized from citrus and sugarcane | 0 | 282
Property and equipment | 91,995 | 95,149
Accrual-to-cash method | 950 | 1,908
Prepaid insurance | 220 | 331
Investment in Magnolia | 24 | 82
Total deferred tax liabilities | 93,189 | 97,752
Net deferred income tax liability | $ (27,108) | $ (31,056)

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