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Commitments and Contingencies (Narrative) (Details) - Lennar $ in Millions	Apr. 21, 2017 USD ($)	Jan. 22, 2015 a
Other Commitments [Line Items]
Land subject to litigation (in acres) | a		1,250
Real Estate Sales
Other Commitments [Line Items]
Net prceeds from sales of land and development assets	$ 234.1
Payments for documentary transfer taxes	3.3
Sales proceeds from sale of land	114.0
Proceeds from interest received	121.8
Proceeds from real estate tax reimbursements	$ 1.6
Participation interests h by held by third party (as a percent)	4.30%
Land | Real Estate Sales
Other Commitments [Line Items]
Unpaid purchase price, interest rate (as a percent)		12.00%

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Land acreage subject to litigation.

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Loss Contingency, Participation Interests Held by Third Party, Percent

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Payments for Documentary Transfer Taxes

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Proceeds from Real Estate Tax Reimbursements

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Proceeds from Sale of Land

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Unpaid Purchase Price, Interest Rate

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Interest received on loans and other debt instruments during the current period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3536-108585

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The cash inflow from the sale of land held for investment; excludes sales of land held as inventory or productive use.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3179-108585

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