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Variable Interest Entities (Exposure to Losses) (Details) - Variable Interest Entity, Not Primary Beneficiary Including Third Parties - USD ($) $ in Thousands | May 31, 2022 | Nov. 30, 2021
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Variable Interest Entity [Line Items] |  |
Non-refundable option deposits and pre-acquisition costs | $ 1,757,845 | $ 1,228,057
Financial Standby Letters of Credit |  |
Variable Interest Entity [Line Items] |  |
Letters of credit in lieu of cash deposits under certain land and option contracts | $ 207,946 | $ 175,937

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- Definition Represents non-refundable option deposits and pre-acquisition costs. + References No definition available. + Details
Name: | len_VariableInterestEntitiesNonRefundableOptionDepositsAndPreAcquisitioncosts
Namespace Prefix: | len_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
Name: | us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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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

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=len_VariableInterestEntityNotPrimaryBeneficiaryIncludingThirdPartiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=len_FinancialStandbyLettersofCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |