Stockholders' Equity (Schedule Of Changes In Equity) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Feb. 28, 2013		Feb. 29, 2012
Balance, beginning	$ 4,001,208	[1]	$ 3,303,525
Net earnings (including net earnings (loss) attributable to noncontrolling interests)	56,958		7,977
Employee stock and directors plans	21,668		11,646
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation	3,164		0
Restricted Stock or Unit Expense	6,486		7,276
Dividends	(7,693)		(7,562)
Receipts related to noncontrolling interests	434		391
Payments related to noncontrolling interests	(12,585)		0
Balance, ending	4,069,640	[1]	3,323,253
Additional Paid-in Capital [Member]
Balance, beginning	2,421,941		2,341,079
Net earnings (including net earnings (loss) attributable to noncontrolling interests)
Employee stock and directors plans	4,487		6,078
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation	3,164
Restricted Stock or Unit Expense	6,486		7,276
Dividends
Receipts related to noncontrolling interests
Payments related to noncontrolling interests
Balance, ending	2,436,078		2,354,433
Treasury Stock [Member]
Balance, beginning	(632,846)		(621,220)
Net earnings (including net earnings (loss) attributable to noncontrolling interests)
Employee stock and directors plans	17,148		5,522
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation
Restricted Stock or Unit Expense
Dividends
Receipts related to noncontrolling interests
Payments related to noncontrolling interests
Balance, ending	(615,698)		(615,698)
Retained Earnings [Member]
Balance, beginning	1,605,131		956,401
Net earnings (including net earnings (loss) attributable to noncontrolling interests)	57,492		14,968
Employee stock and directors plans
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation
Restricted Stock or Unit Expense
Dividends	(7,693)		(7,562)
Receipts related to noncontrolling interests
Payments related to noncontrolling interests
Balance, ending	1,654,930		963,807
Noncontrolling Interests [Member]
Balance, beginning	586,444		607,057
Net earnings (including net earnings (loss) attributable to noncontrolling interests)	(534)		(6,991)
Employee stock and directors plans
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation
Restricted Stock or Unit Expense
Dividends
Receipts related to noncontrolling interests	434		391
Payments related to noncontrolling interests	(12,585)
Balance, ending	573,759		600,457
Class A Common Stock [Member]
Balance, beginning	17,240		16,910
Net earnings (including net earnings (loss) attributable to noncontrolling interests)
Employee stock and directors plans	33		46
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation
Restricted Stock or Unit Expense
Dividends
Receipts related to noncontrolling interests
Payments related to noncontrolling interests
Balance, ending	17,273		16,956
Class B Common Stock [Member]
Balance, beginning	3,298		3,298
Net earnings (including net earnings (loss) attributable to noncontrolling interests)
Employee stock and directors plans
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation
Restricted Stock or Unit Expense
Dividends
Receipts related to noncontrolling interests
Payments related to noncontrolling interests
Balance, ending	$ 3,298		$ 3,298

[1] As of February 28, 2013, total liabilities include $435.3 million related to consolidated VIEs as to which there was no recourse against the Company, of which $10.1 million is included in Lennar Homebuilding accounts payable, $35.8 million in Lennar Homebuilding liabilities related to consolidated inventory not owned, $186.7 million in Lennar Homebuilding senior notes and other debts payable, $14.5 million in Lennar Homebuilding other liabilities and $188.2 million in Rialto Investments notes payable and other liabilities.As of November 30, 2012, total liabilities include $737.2 million related to consolidated VIEs as to which there was no recourse against the Company, of which $10.6 million is included in Lennar Homebuilding accounts payable, $35.9 million in Lennar Homebuilding liabilities related to consolidated inventory not owned, $181.6 million in Lennar Homebuilding senior notes and other debts payable, $15.7 million in Lennar Homebuilding other liabilities and $493.4 million in Rialto Investments notes payable and other liabilities.