Stockholders' Equity (Schedule Of Changes In Equity) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended			9 Months Ended
	Aug. 31, 2014		Aug. 31, 2013	Aug. 31, 2014		Aug. 31, 2013
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning				$ 4,627,470	[1]	$ 4,001,208
Net earnings (loss) (including net earnings (loss) attributable to noncontrolling interests)	173,440		122,154	376,022		321,910
Employee stock and directors plans				2,176		34,396
Treasury stock, retired, cost method, amount				0
Adjustments to additional paid in capital, income tax benefit from share-based compensation				12,892		11,053
Amortization of restricted stock				28,482		23,430
Dividends				(24,565)		(23,142)
Adjustments to additional paid in capital, other						39,605
Receipts related to noncontrolling interests				11,963		579
Payments related to noncontrolling interests				(115,001)		(174,853)
Noncontrolling interests non cash consolidations				118,272
Non-cash purchase of noncontrolling interests						(63,500)
Non-cash activity related to noncontrolling interests				430
Balance, ending	5,038,141	[1]	4,170,686	5,038,141	[1]	4,170,686
Additional Paid-in Capital [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning				2,721,246		2,421,941
Net earnings (loss) (including net earnings (loss) attributable to noncontrolling interests)				0		0
Employee stock and directors plans				1,400		17,196
Treasury stock, retired, cost method, amount				(541,019)
Adjustments to additional paid in capital, income tax benefit from share-based compensation				12,892		11,053
Amortization of restricted stock				28,482		23,430
Dividends				0		0
Adjustments to additional paid in capital, other						(61,945)
Receipts related to noncontrolling interests				0		0
Payments related to noncontrolling interests				0		0
Noncontrolling interests non cash consolidations				0
Non-cash purchase of noncontrolling interests						0
Non-cash activity related to noncontrolling interests				0
Balance, ending	2,223,001		2,411,675	2,223,001		2,411,675
Treasury Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning				(628,019)		(632,846)
Net earnings (loss) (including net earnings (loss) attributable to noncontrolling interests)				0		0
Employee stock and directors plans				662		16,957
Treasury stock, retired, cost method, amount				542,192
Adjustments to additional paid in capital, income tax benefit from share-based compensation				0		0
Amortization of restricted stock				0		0
Dividends				0		0
Adjustments to additional paid in capital, other						0
Receipts related to noncontrolling interests				0		0
Payments related to noncontrolling interests				0		0
Noncontrolling interests non cash consolidations				0
Non-cash purchase of noncontrolling interests						0
Non-cash activity related to noncontrolling interests				0
Balance, ending	(85,165)		(615,889)	(85,165)		(615,889)
Retained Earnings [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning				2,053,893		1,605,131
Net earnings (loss) (including net earnings (loss) attributable to noncontrolling interests)				393,593		315,590
Employee stock and directors plans				0		0
Treasury stock, retired, cost method, amount				0
Adjustments to additional paid in capital, income tax benefit from share-based compensation				0		0
Amortization of restricted stock				0		0
Dividends				(24,565)		(23,142)
Adjustments to additional paid in capital, other						0
Receipts related to noncontrolling interests				0		0
Payments related to noncontrolling interests				0		0
Noncontrolling interests non cash consolidations				0
Non-cash purchase of noncontrolling interests						0
Non-cash activity related to noncontrolling interests				0
Balance, ending	2,422,921		1,897,579	2,422,921		1,897,579
Noncontrolling Interests [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning				458,569		586,444
Net earnings (loss) (including net earnings (loss) attributable to noncontrolling interests)				(17,571)		6,320
Employee stock and directors plans				0		0
Treasury stock, retired, cost method, amount				0
Adjustments to additional paid in capital, income tax benefit from share-based compensation				0		0
Amortization of restricted stock				0		0
Dividends				0		0
Adjustments to additional paid in capital, other						101,550
Receipts related to noncontrolling interests				11,963		579
Payments related to noncontrolling interests				(115,001)		(174,853)
Noncontrolling interests non cash consolidations				118,272
Non-cash purchase of noncontrolling interests						(63,500)
Non-cash activity related to noncontrolling interests				430
Balance, ending	456,662		456,540	456,662		456,540
Class A Common Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning				18,483		17,240
Net earnings (loss) (including net earnings (loss) attributable to noncontrolling interests)						0
Employee stock and directors plans				114		243
Treasury stock, retired, cost method, amount				(1,173)
Adjustments to additional paid in capital, income tax benefit from share-based compensation				0		0
Amortization of restricted stock				0		0
Dividends				0		0
Adjustments to additional paid in capital, other						0
Receipts related to noncontrolling interests				0		0
Payments related to noncontrolling interests				0		0
Noncontrolling interests non cash consolidations				0
Non-cash purchase of noncontrolling interests						0
Non-cash activity related to noncontrolling interests				0
Balance, ending	17,424		17,483	17,424		17,483
Class B Common Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning				3,298		3,298
Net earnings (loss) (including net earnings (loss) attributable to noncontrolling interests)				0		0
Employee stock and directors plans				0		0
Treasury stock, retired, cost method, amount				0
Adjustments to additional paid in capital, income tax benefit from share-based compensation				0		0
Amortization of restricted stock				0		0
Dividends				0		0
Adjustments to additional paid in capital, other						0
Receipts related to noncontrolling interests				0		0
Payments related to noncontrolling interests				0		0
Noncontrolling interests non cash consolidations				0
Non-cash purchase of noncontrolling interests						0
Non-cash activity related to noncontrolling interests				0
Balance, ending	$ 3,298		$ 3,298	$ 3,298		$ 3,298

[1] As of August 31, 2014, total liabilities include $142.7 million related to consolidated VIEs as to which there was no recourse against the Company, of which $5.5 million is included in Lennar Homebuilding accounts payable, $47.5 million in Lennar Homebuilding liabilities related to consolidated inventory not owned, $61.6 million in Lennar Homebuilding senior notes and other debts payable, $4.5 million in Lennar Homebuilding other liabilities and $23.6 million in Rialto Investments liabilities.As of November 30, 2013, total liabilities include $294.8 million related to consolidated VIEs as to which there was no recourse against the Company, of which $3.0 million is included in Lennar Homebuilding accounts payable, $191.6 million in Lennar Homebuilding liabilities related to consolidated inventory not owned, $75.1 million in Lennar Homebuilding senior notes and other debts payable, $4.9 million in Lennar Homebuilding other liabilities and $20.2 million in Rialto Investments liabilities.