Description of Business and Basis of Presentation (Details) $ / shares in Units, a in Thousands |
1 Months Ended | 3 Months Ended | 12 Months Ended | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Oct. 01, 2015
USD ($)
segment
|
Mar. 31, 2016
USD ($)
|
Sep. 30, 2016
USD ($)
a
classification
$ / shares
|
Jun. 30, 2016
USD ($)
$ / shares
|
Mar. 31, 2016
USD ($)
$ / shares
|
Dec. 31, 2015
USD ($)
$ / shares
|
Sep. 30, 2015
USD ($)
$ / shares
|
Jun. 30, 2015
USD ($)
$ / shares
|
Mar. 31, 2015
USD ($)
$ / shares
|
Dec. 31, 2014
USD ($)
$ / shares
|
Sep. 30, 2016
USD ($)
a
classification
segment
$ / shares
|
Sep. 30, 2015
USD ($)
segment
$ / shares
|
Sep. 30, 2014
USD ($)
$ / shares
|
Feb. 28, 2015 |
Nov. 19, 2013 |
|
| Property, Plant and Equipment [Line Items] | |||||||||||||||
| Number of business segments | segment | 3 | 3 | 5 | ||||||||||||
| Income tax expense (benefit) | $ (1,898,000) | $ 3,392,000 | $ 6,102,000 | $ (2,075,000) | $ (629,000) | $ 6,644,000 | $ 1,127,000 | $ 3,763,000 | $ 5,521,000 | $ 10,905,000 | $ 11,383,000 | ||||
| Deferred tax liability | 31,004,000 | 25,629,000 | 31,004,000 | 25,629,000 | |||||||||||
| Reduction in additional paid in capital | (18,155,000) | (19,795,000) | (18,155,000) | (19,795,000) | |||||||||||
| Net loss | $ 3,416,000 | $ (4,670,000) | $ (8,724,000) | $ 3,019,000 | $ 5,425,000 | $ (9,176,000) | $ (4,226,000) | $ (5,206,000) | (6,959,000) | (13,183,000) | $ (9,495,000) | ||||
| Net income attributable to parent | $ 35,307 | $ 32,647 | |||||||||||||
| Diluted (in dollars per share) | $ / shares | $ (0.41) | $ 0.56 | $ 1.05 | $ (0.36) | $ 0.65 | $ 1.11 | $ 0.51 | $ 0.71 | $ 0.84 | $ 1.64 | $ 1.29 | ||||
| Citree | |||||||||||||||
| Property, Plant and Equipment [Line Items] | |||||||||||||||
| Net loss attributable to noncontrolling interest | $ 69,230 | $ 64,014 | |||||||||||||
| Alico Inc | |||||||||||||||
| Property, Plant and Equipment [Line Items] | |||||||||||||||
| Ownership interest (as a percent) | 51.00% | ||||||||||||||
| Alico Inc | Silver Nip Citrus | |||||||||||||||
| Property, Plant and Equipment [Line Items] | |||||||||||||||
| Ownership interest (as a percent) | 74.89% | ||||||||||||||
| Mr. Clay Wilson | Silver Nip Citrus | |||||||||||||||
| Property, Plant and Equipment [Line Items] | |||||||||||||||
| Ownership interest (as a percent) | 5.00% | ||||||||||||||
| Entity Controlled by Mr. Clay Wilson | Silver Nip Citrus | |||||||||||||||
| Property, Plant and Equipment [Line Items] | |||||||||||||||
| Ownership interest (as a percent) | 20.11% | ||||||||||||||
| Subsidiaries | |||||||||||||||
| Property, Plant and Equipment [Line Items] | |||||||||||||||
| Decrease to total assets | $ 492,000 | ||||||||||||||
| Net loss | $ 596,000 | ||||||||||||||
| Land | |||||||||||||||
| Property, Plant and Equipment [Line Items] | |||||||||||||||
| Area of land owned (in acres) | a | 122 | 122 | |||||||||||||
| Number of primary classifications | classification | 2 | 2 | |||||||||||||
| Mineral Rights | |||||||||||||||
| Property, Plant and Equipment [Line Items] | |||||||||||||||
| Area of land owned (in acres) | a | 90 | 90 | |||||||||||||
| Immaterial Error Correction | |||||||||||||||
| Property, Plant and Equipment [Line Items] | |||||||||||||||
| Income tax expense (benefit) | $ 1,494,000 | ||||||||||||||
| Deferred tax liability | $ 1,494,000 | ||||||||||||||
| Reduction in additional paid in capital | $ 1,494,000 | ||||||||||||||
| Diluted (in dollars per share) | $ / shares | $ 0.20 | ||||||||||||||