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Lennar Homebuilding Investments In Unconsolidated Entities (Narrative) (Details) (USD $)
3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended
Aug. 31, 2011
Aug. 31, 2010
Aug. 31, 2011
Aug. 31, 2010
Nov. 30, 2010
Aug. 31, 2010
Other Loan Paydowns [Member]
Aug. 31, 2010
Other Loan Paydowns [Member]
Aug. 31, 2010
Loan Paydown [Member]
Aug. 31, 2010
Loan Paydown [Member]
Aug. 31, 2010
Lennar Homebuilding Investments [Member]
Aug. 31, 2011
Lennar Homebuilding Investments [Member]
Aug. 31, 2010
Lennar Homebuilding Investments [Member]
Nov. 30, 2010
Lennar Homebuilding Investments [Member]
Aug. 31, 2011
Morgan Stanley & Co. [Member]
Nov. 30, 2010
Morgan Stanley & Co. [Member]
Nov. 30, 2007
Morgan Stanley & Co. [Member]
Percent of combination     100.00%                          
Deferred management fees     $ 10,000,000                          
Ownership interest                               20.00%
Voting rights percentage                               50.00%
Inventories                     3,168,938,000   3,371,435,000 378,500,000 424,500,000  
Maximum recourse exposure related to indebtedness of unconsolidated entities     52,700,000                          
Maximum recourse exposure of increase to assets, liabilities and equity     36,300,000                          
Capital contributions to unconsolidated entities     17,700,000                          
Amount related to joint venture and restructuring of guarantee     35,000,000                          
Obligation guarantees accrued as liability 0   0   10,200,000                      
Change in estimate of obligation guarantee     2,600,000                          
Reduction in liability related to change in estimate of previously accrued obligation     10,200,000                          
Cash payment related to obligation     7,600,000                          
Maintenance guarantees   3,000,000 1,700,000 8,000,000                        
Other loan paydowns 3,100,000   16,100,000     900,000 27,900,000 50,300,000 50,300,000              
Payments under completion guarantees 0 0 0 0                        
Extinguishment of debt   19,300,000   19,300,000                        
Net pre-tax gain of debt                   $ 7,700,000 $ 15,400,000 $ 7,700,000