Business Acquisition (Schedule of Assets Acquired and Liabilities Assumed) (Details) - USD ($) $ in Thousands		Feb. 12, 2018	Feb. 10, 2017	Feb. 28, 2018	Nov. 30, 2017
Lennar Homebuilding
Inventories:
Goodwill	[1]			$ 3,433,477	$ 136,566
Lennar Financial Services
Inventories:
Goodwill				210,628	$ 59,838
CalAtlantic Group, Inc.
Inventories:
Goodwill		$ 3,400,000
Total assets		10,703,358
LIABILITIES
Total liabilities		4,452,581
Noncontrolling interests		18,430
Total purchase price		6,232,347
CalAtlantic Group, Inc. | Lennar Homebuilding
ASSETS
Cash and cash equivalents, restricted cash and receivables, net		57,879
Inventories:
Inventories		6,288,283
Intangible assets		8,000
Investments in unconsolidated entities		151,858
Goodwill		3,296,911
Other assets		577,623
Total assets		10,380,554
LIABILITIES
Accounts payable		85,001
Senior notes and other debts payable		3,922,987
Other liabilities		349,520
Total liabilities		4,357,508
CalAtlantic Group, Inc. | Lennar Financial Services
Inventories:
Goodwill		150,000
Total assets		322,804
LIABILITIES
Total liabilities		$ 95,073
CalAtlantic Group, Inc. | Trade Name | Lennar Homebuilding
LIABILITIES
Amortization period		6 months
WCI Communities, Inc.
ASSETS
Cash and cash equivalents, restricted cash and receivables, net			$ 42,079
Inventories:
Inventories			613,495
Intangible assets			59,283
Goodwill			156,566
Deferred tax assets, net			88,147
Other assets			66,173
Total assets			1,025,743
LIABILITIES
Accounts payable			26,735
Senior notes and other debts payable			282,793
Other liabilities			73,593
Total liabilities			383,121
Total purchase price			642,622
WCI Communities, Inc. | Lennar Financial Services
Inventories:
Goodwill				$ 20,000
WCI Communities, Inc. | Homebuilding East
Inventories:
Goodwill			$ 136,600
WCI Communities, Inc. | Non-compete Agreements
LIABILITIES
Amortization period			6 months
WCI Communities, Inc. | Trade Name
LIABILITIES
Amortization period			20 years

[1] Under certain provisions of Accounting Standards Codification ("ASC") Topic 810, Consolidations, ("ASC 810") the Company is required to separately disclose on its condensed consolidated balance sheets the assets owned by consolidated variable interest entities ("VIEs") and liabilities of consolidated VIEs as to which neither Lennar Corporation, or any of its subsidiaries, has any obligations. As of February 28, 2018, total assets include $864.8 million related to consolidated VIEs of which $7.6 million is included in Lennar Homebuilding cash and cash equivalents, $0.1 million in Lennar Homebuilding receivables, net, $45.4 million in Lennar Homebuilding finished homes and construction in progress, $308.8 million in Lennar Homebuilding land and land under development, $366.7 million in Lennar Homebuilding consolidated inventory not owned, $4.5 million in Lennar Homebuilding investments in unconsolidated entities, $11.7 million in Lennar Homebuilding other assets, $20.0 million in Rialto assets and $100.0 million in Lennar Multifamily assets. As of November 30, 2017, total assets include $799.4 million related to consolidated VIEs of which $15.8 million is included in Lennar Homebuilding cash and cash equivalents, $0.2 million in Lennar Homebuilding receivables, net, $53.2 million in Lennar Homebuilding finished homes and construction in progress, $229.0 million in Lennar Homebuilding land and land under development, $393.3 million in Lennar Homebuilding consolidated inventory not owned, $4.6 million in Lennar Homebuilding investments in unconsolidated entities, $11.8 million in Lennar Homebuilding other assets, $48.8 million in Rialto assets and $42.7 million in Lennar Multifamily assets.