Summary Of Significant Accounting Policies (Loan Origination Liabilities) (Details) - Lennar Financial Services - Loan Origination Liabilities - USD ($) $ in Thousands	12 Months Ended
Nov. 30, 2017	Nov. 30, 2016
Loan Origination Liabilities [Roll Forward]
Loan origination liabilities, beginning of year	$ 24,905	$ 19,492
Provision for losses	3,861	4,627
Adjustments to pre-existing provisions for losses from changes in estimates	(4,440)	1,224
Payments/settlements	(1,783)	(438)
Loan origination liabilities, end of year	$ 22,543	$ 24,905

Loss Contingency Accrual, Adjustments for Changes in Estimates

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- Definition

Amount of loss contingency liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

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Amount of cash outflow reducing loss contingency liability.

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Amount charged against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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