Lennar Homebuilding Senior Notes And Other Debts Payable (Narrative) (Details)	1 Months Ended		3 Months Ended	12 Months Ended
	Nov. 30, 2011 USD ($) $ / shares shares	Nov. 30, 2010 USD ($) $ / shares	Feb. 29, 2016 USD ($) shares	Nov. 30, 2015 USD ($) $ / shares shares	Nov. 30, 2014 USD ($) $ / shares shares	Nov. 30, 2013 $ / shares shares	Jun. 29, 2015 USD ($)	Apr. 30, 2015 USD ($)	Nov. 30, 2012	Nov. 30, 2005 USD ($)
Debt Instrument [Line Items]
Letters of credit outstanding, amount				$ 453,166,000
Incremental common shares attributable to conversion of debt securities | shares				25,614,000	26,023,000	35,193,000
Guarantee by subsidiaries				$ 75,000,000
5.60% Senior Notes Due 2015 [Member]
Debt Instrument [Line Items]
Interest rate				5.60%
Debt instrument, face amount										$ 500,000,000
Senior notes				$ 0	$ 500,092,000
2.75% Convertible Senior Notes Due 2020 [Member]
Debt Instrument [Line Items]
Interest rate		2.75%		2.75%
Debt instrument, face amount		$ 446,000,000		$ 233,893,000	446,000,000
Senior notes				$ 233,225,000	$ 429,005,000
Debt instrument, convertible, conversion ratio		45.1794
Debt conversion, converted instrument, per principal amount		$ 1,000
Debt conversion, converted instrument, shares issued | shares			2,090,000	5,207,000
Debt instrument, convertible, conversion price (in usd per share) | $ / shares		$ 22.13
Volume weighted average stock price | $ / shares				$ 48.61	$ 39.96	$ 37.06
Incremental common shares attributable to conversion of debt securities | shares				8,592,000	9,001,000	8,224,000
Debt Conversion, Convertible Instrument, Shares Required for Conversion at Period End | shares				10,567,145
Minimum number of trading days out of 30, over stock conversion price percentage, threshold for conversion		20 days
Minimum number of consecutive trading days over stock conversion price percentage, threshold for conversion		30 days
Debt Conversion, Original Debt, Amount			$ 89,170,000	$ 212,107,000
Debt Conversion, Converted Instrument, Amount			$ 89,183,000	212,727,000
Interest period requirement to pay contingent interest		6 months
Consecutive trading days period for contingent interest		5 days
Contingent interest amount		0.75%
Debt instrument, unamortized discount				586,000	$ 14,957,000
Amount of interest recognized in contractual interest and amortization of discount				$ 21,248,000	27,267,000
3.25% Convertible Senior Notes Due 2021 [Member]
Debt Instrument [Line Items]
Interest rate	3.25%			3.25%					3.25%
Debt instrument, face amount	$ 400,000,000
Senior notes				$ 398,194,000	393,721,000
Debt instrument, convertible, conversion ratio	42.5555
Debt conversion, converted instrument, per principal amount	$ 1,000
Debt conversion, converted instrument, shares issued | shares	17,022,200
Debt instrument, convertible, conversion price (in usd per share) | $ / shares	$ 23.50
Mortgage Notes On Land And Other Debt [Member]
Debt Instrument [Line Items]
Interest rate				7.50%
Average interest rate on mortgage notes on land and other debt				3.20%
Mortgage notes on land and other debt				$ 278,381,000	368,052,000
Extinguishment of debt				$ 258,108,000	285,855,000
Holders Of Debt Instrument [Member] | 2.75% Convertible Senior Notes Due 2020 [Member]
Debt Instrument [Line Items]
Debt instrument convertible terms of conversion feature				Holders of the 2.75% Convertible Senior Notes had the right to require the Company to repurchase them for cash equal to 100% of their principal amount, plus accrued but unpaid interest, on December 15, 2015, but none of them elected to do so.
Stock Conversion Price, Threshold for Conversion		130.00%
Holders Of Debt Instrument [Member] | 3.25% Convertible Senior Notes Due 2021 [Member]
Debt Instrument [Line Items]
Debt instrument convertible terms of conversion feature				Holders of the 3.25% Convertible Senior Notes have the right to require the Company to repurchase them for cash equal to 100% of their principal amount, plus accrued but unpaid interest on November 15, 2016.
Company Conversion Right To Debt Instrument [Member] | 2.75% Convertible Senior Notes Due 2020 [Member]
Debt Instrument [Line Items]
Debt instrument convertible terms of conversion feature				The Company has the right to redeem the 2.75% Convertible Senior Notes at any time on or after December 20, 2015 for 100% of their principal amount, plus accrued but unpaid interest.
Stock Conversion Price, Threshold for Conversion		120.00%
Company Conversion Right To Debt Instrument [Member] | 3.25% Convertible Senior Notes Due 2021 [Member]
Debt Instrument [Line Items]
Debt instrument convertible terms of conversion feature				The Company has the right to redeem the 3.25% Convertible Senior Notes at any time on or after November 20, 2016 for 100% of their principal amount, plus accrued but unpaid interest.
Lennar Homebuilding [Member]
Debt Instrument [Line Items]
Debt Issuance Cost				$ 26,417,000	28,947,000
Outstanding performance and surety bonds				1,279,220,000
Uncompleted site improvements amount				$ 490,046,000
Uncompleted site improvements percentage				38.00%
Lennar Homebuilding [Member] | 5.60% Senior Notes Due 2015 [Member]
Debt Instrument [Line Items]
Interest rate										5.60%
Lennar Homebuilding [Member] | 2.75% Convertible Senior Notes Due 2020 [Member]
Debt Instrument [Line Items]
Debt instrument interest rate after amortization of discount		7.10%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility maximum borrowing capacity				$ 1,600,000,000				$ 1,280,000,000
Letter of credit facility additional capacity				163,000,000
Line of credit facility, capacity available for specific purpose other than for trade purchases				500,000,000
Line of Credit Facility, Fair Value of Amount Outstanding				0	0
Letter Of Credit Agreement One [Member]
Debt Instrument [Line Items]
Line of credit facility, current borrowing capacity				315,000,000
Performance Letters Of Credit [Member] | Lennar Homebuilding [Member]
Debt Instrument [Line Items]
Letters of credit outstanding, amount				236,513,000	234,148,000
Financial Letters Of Credit [Member] | Lennar Homebuilding [Member]
Debt Instrument [Line Items]
Letters of credit outstanding, amount				$ 216,653,000	$ 190,405,000
Bonds [Member] | Lennar Homebuilding [Member]
Debt Instrument [Line Items]
Legal Claims, Letters of Credit and Surety Bonds							$ 223,440,000