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Basis of Presentation and Significant Accounting Policies - Narrative (Details)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Jul. 31, 2018
USD ($)
Jul. 31, 2018
USD ($)
Oct. 31, 2018
USD ($)
segment
$ / shares
Oct. 31, 2017
USD ($)
segment
$ / shares
Oct. 31, 2016
USD ($)
$ / shares
Aug. 31, 2018
USD ($)
Jul. 31, 2015
Significant Accounting Policies [Line Items]              
Non-trade receivables     $ 4,900 $ 4,700      
Prepaid expenses     $ 2,800 $ 2,900      
Number of reportable segments | segment     3 3      
Capitalized software development costs       $ 1,800      
Goodwill impairment loss     $ 0 0      
Impairment of long-lived assets     0 0      
Investment in FreshRealm included in accrued expenses         $ 1,600    
Investment in unconsolidated entities     136 500      
Noncontrolling interest     1,748 1,016      
Estimated fair value of investment     42,600 40,400      
Estimated cost of investment     23,500 23,500      
Estimated gross unrealized gain related to such investment     19,100 16,900      
Advances to suppliers     1,009 (79) 1,605    
Total advance to supplier     5,555 4,346      
Accrued liabilities related to goods and services     20,900 24,800      
Advertising costs     200 100 200    
Dividend income included in other income     600 500 600    
Recognized stock-based compensation expense     4,600 4,300 2,100    
Foreign currency gains/losses net of losses/gains     800 300 1,100    
Fixed rate long term obligation fair value     400 600      
Unrealized investment gain     $ 2,247 $ 6,326 $ 6,621    
Customer concentration [Member] | Sales revenue [Member] | Top ten customers              
Significant Accounting Policies [Line Items]              
Net sales percentage     59.00% 59.00% 52.00%    
Customer concentration [Member] | Sales revenue [Member] | Kroger              
Significant Accounting Policies [Line Items]              
Net sales percentage     20.00% 19.00% 17.00%    
Customer concentration [Member] | Sales revenue [Member] | Walmart              
Significant Accounting Policies [Line Items]              
Net sales percentage     10.00%        
FreshRealm              
Significant Accounting Policies [Line Items]              
Receivable in prepaid and other current assets     $ 9,000        
Fair value of noncontrolling investment     $ 19,900 $ 28,400      
Subscription agreements issued to third-party investors $ 3,500 $ 3,500          
Ownership interest     37.00%        
Avocados de Jalisco              
Significant Accounting Policies [Line Items]              
Noncontrolling interest     $ 1,748 1,016 $ 962    
Ownership interest     83.00%        
Supply Agreement With Belher [Member]              
Significant Accounting Policies [Line Items]              
Allowance from advance to supplier     $ 0 400      
Advances for operating purpose     3,000        
Advances to suppliers     4,000        
Total advance to supplier     4,000        
Supply Agreement With Don Memo [Member]              
Significant Accounting Policies [Line Items]              
Advances to supplier     2,500 $ 1,600      
Infrastructure Advance Agreement With Belher [Member]              
Significant Accounting Policies [Line Items]              
Advances incur interest       3.00%   10.00%  
Aggregate advance     3,400 $ 600 800 $ 3,000  
Annual repayment of advances           $ 600  
Subscription Agreement with FreshRealm [Member]              
Significant Accounting Policies [Line Items]              
Investment in unconsolidated entities $ 3,500            
Limoneira [Member]              
Significant Accounting Policies [Line Items]              
Dividend income included in other income     400 400 300    
Unrealized investment gain     $ 1,700 $ 3,900 $ 4,100    
Limoneira's stock price | $ / shares     $ 24.65 $ 23.35 $ 19.69    
Mexican IVA taxes [Member]              
Significant Accounting Policies [Line Items]              
Mexican IVA (i.e. value-added) tax receivable recorded in prepaids & other current assets     $ 1,500 $ 1,400      
Prepaid Expenses and Other Current Assets [Member] | Infrastructure Advance Agreement With Belher [Member]              
Significant Accounting Policies [Line Items]              
Aggregate advance     800 200      
Other long-term assets [Member] | Infrastructure Advance Agreement With Belher [Member]              
Significant Accounting Policies [Line Items]              
Aggregate advance     $ 2,600 400      
Minimum [Member]              
Significant Accounting Policies [Line Items]              
Ownership interest of voting stock of investee     20.00%        
Minimum [Member] | Buildings and improvements [Member]              
Significant Accounting Policies [Line Items]              
Useful lives     7 years        
Minimum [Member] | Leasehold improvements [Member]              
Significant Accounting Policies [Line Items]              
Useful lives     7 years        
Minimum [Member] | Equipment [Member]              
Significant Accounting Policies [Line Items]              
Useful lives     7 years        
Minimum [Member] | Information systems hardware and software [Member]              
Significant Accounting Policies [Line Items]              
Useful lives     3 years        
Maximum [Member]              
Significant Accounting Policies [Line Items]              
Ownership interest of voting stock of investee     50.00%        
Research and development costs     $ 100 100 $ 100    
Maximum [Member] | Buildings and improvements [Member]              
Significant Accounting Policies [Line Items]              
Useful lives     50 years        
Maximum [Member] | Equipment [Member]              
Significant Accounting Policies [Line Items]              
Useful lives     25 years        
Maximum [Member] | Information systems hardware and software [Member]              
Significant Accounting Policies [Line Items]              
Useful lives     10 years        
Maximum [Member] | Limoneira [Member]              
Significant Accounting Policies [Line Items]              
Ownership interest     10.00%        
Percentage of outstanding shares of Limoneira's shares     10.00%        
Don Memo              
Significant Accounting Policies [Line Items]              
Investment in unconsolidated entities     $ 100 500      
Fair value of noncontrolling investment     $ 4,900 $ 4,600      
Belo              
Significant Accounting Policies [Line Items]              
Ownership interest     50.00%       50.00%