Annual report pursuant to Section 13 and 15(d)

Segment Information - Schedule of Information by Business Segment (Details)

v3.10.0.1
Segment Information - Schedule of Information by Business Segment (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2016
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2016
Segment Reporting, Revenue Reconciling Item [Line Items]                      
Total revenues $ 1,631 $ 26,517 $ 35,600 $ 17,533 $ 4,666 $ 51,518 $ 56,200 $ 17,445 $ 81,281 $ 129,829 $ 144,196
Total operating expenses (3,633) 14,603 27,767 16,951 28,013 36,510 41,684 14,692 55,688 120,899 109,137
Total gross profit (loss) 5,264 $ 11,914 $ 7,833 $ 582 (23,347) $ 15,008 $ 14,516 $ 2,753 25,593 8,930 35,059
Total capital expenditures                 16,352 13,353 14,305
Total depreciation, depletion and amortization                 13,756 15,226 15,382
Total Assets 423,422       419,182       423,422 419,182  
Operating Segments                      
Segment Reporting, Revenue Reconciling Item [Line Items]                      
Total revenues                 81,281 129,829 144,196
Total operating expenses                 55,688 120,899 109,137
Total gross profit (loss)                 25,593 8,930 35,059
Segment Reconciling Items                      
Segment Reporting, Revenue Reconciling Item [Line Items]                      
Total capital expenditures                 80 969 1,619
Total depreciation, depletion and amortization                 70 520 468
Corporate, Non-Segment                      
Segment Reporting, Revenue Reconciling Item [Line Items]                      
Total Assets 1,766       6,391       1,766 6,391  
Alico Citrus                      
Segment Reporting, Revenue Reconciling Item [Line Items]                      
Total revenues                 78,121 123,441 137,282
Total operating expenses                 51,709 111,947 102,347
Alico Citrus | Operating Segments                      
Segment Reporting, Revenue Reconciling Item [Line Items]                      
Total gross profit (loss)                 26,412 11,494 34,935
Total capital expenditures                 15,968 11,738 10,393
Total depreciation, depletion and amortization                 13,467 14,054 13,982
Total Assets 405,752       387,972       405,752 387,972  
Water Resources and Other Operations                      
Segment Reporting, Revenue Reconciling Item [Line Items]                      
Total revenues                 3,160 6,388 6,914
Total operating expenses                 3,979 8,952 6,790
Water Resources and Other Operations | Operating Segments                      
Segment Reporting, Revenue Reconciling Item [Line Items]                      
Total gross profit (loss)                 (819) (2,564) 124
Total capital expenditures                 304 646 2,293
Total depreciation, depletion and amortization                 219 652 $ 932
Total Assets $ 15,904       $ 24,819       $ 15,904 $ 24,819