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Note 10 - Operating and Reporting Segments (Details Textual)
$ in Thousands
 3 Months Ended 12 Months Ended
Oct. 31, 2017
USD ($)
Jul. 31, 2017
USD ($)
Apr. 30, 2017
USD ($)
Jan. 31, 2017
USD ($)
Oct. 31, 2016
USD ($)
Jul. 31, 2016
USD ($)
Apr. 30, 2016
USD ($)
Jan. 31, 2016
USD ($)
Oct. 31, 2017
USD ($)
Oct. 31, 2016
USD ($)
Oct. 31, 2015
USD ($)
Real Estate Inventory Expense Not Eligible for Capitalization                 $ 97,304 $ 90,967 $ 91,835
Gain (Loss) on Extinguishment of Debt $ (42,258) $ (242) $ 7,646 $ 3,200 (34,854) (3,200)
Increase (Decrease) In Construction Defect Reserves 12,500       (9,200)            
Other Nonoperating Income (Expense)                 (1,518) (4,874) (6,003)
Deferred Tax Assets, Net of Valuation Allowance       283,633       283,633  
Qualifying Assets Not Exceeding Debt [Member]                      
Real Estate Inventory Expense Not Eligible for Capitalization                 69,100 50,400 77,600
Corporate, Non-Segment [Member]                      
General and Administrative Expense                 59,400 60,100 62,500
Gain (Loss) on Extinguishment of Debt                 (34,900) (3,200)  
Increase (Decrease) In Construction Defect Reserves                 12,500 (9,200) (14,400)
Other Nonoperating Income (Expense)                 900 800 5,500
Deferred Tax Assets, Net of Valuation Allowance         $ 283,600         283,600  
Corporate, Non-Segment [Member] | Qualifying Assets Not Exceeding Debt [Member]                      
Real Estate Inventory Expense Not Eligible for Capitalization                 $ 69,100 $ 50,400 $ 64,500
Homebuilding [Member]                      
Number of Reportable Segments                 6