Selected Quarterly Financial Data (unaudited) - Schedule of Quarterly Financial Data (Details) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Sep. 30, 2020 |
Jun. 30, 2020 |
Mar. 31, 2020 |
Dec. 31, 2019 |
Sep. 30, 2019 |
Jun. 30, 2019 |
Mar. 31, 2019 |
Dec. 31, 2018 |
Sep. 30, 2020 |
Sep. 30, 2019 |
Sep. 30, 2018 |
|
| Quarterly Financial Information Disclosure [Abstract] | |||||||||||
| Revenue | $ 4,865 | $ 26,122 | $ 50,515 | $ 11,005 | $ 1,386 | $ 57,565 | $ 48,521 | $ 14,779 | |||
| Total operating expenses | 5,397 | 19,902 | 43,898 | 5,391 | (13,474) | 31,561 | 32,207 | 11,597 | |||
| Gross profit (loss) | (532) | 6,220 | 6,617 | 5,614 | 14,860 | 26,004 | 16,314 | 3,182 | $ 17,919 | $ 60,360 | $ 25,593 |
| General and administrative expenses | 2,729 | 2,556 | 2,953 | 2,760 | 4,360 | 2,682 | 4,654 | 3,450 | 10,998 | 15,146 | 15,058 |
| Other (expense) income, net | 26,058 | (1,405) | 1,398 | (1,595) | 11,478 | (1,623) | (1,972) | (2,864) | 24,456 | 5,019 | 2,655 |
| Income before income taxes | 22,797 | 2,259 | 5,062 | 1,259 | 21,978 | 21,699 | 9,688 | (3,132) | 31,377 | 50,233 | 13,190 |
| Income tax provision | 5,635 | 171 | 1,496 | 361 | 5,701 | 5,483 | 2,228 | (629) | 7,663 | 12,783 | 390 |
| Net income | 17,162 | 2,088 | 3,566 | 898 | 16,277 | 16,216 | 7,460 | (2,503) | 23,714 | 37,450 | 12,800 |
| Net (income) loss attributable to noncontrolling interests | 42 | 8 | 5 | (107) | 232 | 28 | 87 | 36 | (52) | 383 | 250 |
| Net income attributable to Alico, Inc. common stockholders | $ 17,204 | $ 2,096 | $ 3,571 | $ 791 | $ 16,509 | $ 16,244 | $ 7,547 | $ (2,467) | $ 23,662 | $ 37,833 | $ 13,050 |
| Per share information attributable to Alico, Inc. common stockholders: | |||||||||||
| Basic (in dollars per share) | $ 2.29 | $ 0.28 | $ 0.48 | $ 0.11 | $ 2.21 | $ 2.17 | $ 1.01 | $ (0.33) | $ 3.16 | $ 5.06 | $ 1.59 |
| Diluted (in dollars per share) | $ 2.29 | $ 0.28 | $ 0.48 | $ 0.11 | $ 2.21 | $ 2.17 | $ 1.01 | $ (0.33) | $ 3.16 | $ 5.05 | $ 1.57 |
| X | ||||||||||
- Definition The aggregate cost of goods produced and sold and services rendered during the reporting period. No definition available.
|
| X | ||||||||||
- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of Net Income (Loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|