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v3.21.2

Variable Interest Entities (Narrative) (Details) $ in Millions | 6 Months Ended
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May 31, 2021 USD ($)
Variable Interest Entity, Not Primary Beneficiary |
Variable Interest Entity [Line Items] |
Decrease in consolidated inventory | $ 73.4

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- Definition Increase (Decrease) in Land Under Purchase Options, Not Owned, Recorded + References No definition available. + Details
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Namespace Prefix: | len_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition 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. + References No definition available. + Details
Name: | us-gaap_VariableInterestEntityLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | srt_ConsolidatedEntitiesAxis=us-gaap_VariableInterestEntityNotPrimaryBeneficiaryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |