Financial Instruments (Reconciliation Of Beginning And Ending Balance For The Company's Level 3 Recurring Fair Value Measurements) (Details) (Investments Available For Sale [Member], Lennar Homebuilding [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	May 31, 2012		May 31, 2012
Investments Available For Sale [Member] | Lennar Homebuilding [Member]
Investments available-for-sale, beginning of period	$ 18,236		$ 42,892
Purchases and other	6,070	[1]	20,998	[1]
Sales	0		(6,436)
Settlements	0	[2]	(33,148)	[2]
Investments available-for-sale, end of period	$ 24,306		$ 24,306

[1] Represents investments in community development district bonds that mature at various dates between 2022 and 2042.

[2] The investments available-for-sale that were settled during both the three and six months ended May 31, 2012 related to investments in community development district bonds, which were in default by the borrower and regarding which the Company foreclosed on the underlying real estate collateral. Therefore, these investments were reclassified from other assets to land and land under development.