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v3.19.2

Variable Interest Entities (Details) $ in Thousands | May 31, 2019 USD ($) joint_venture | Nov. 30, 2018 USD ($) joint_venture
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Variable Interest Entity [Line Items] |  |
Number of investments in unconsolidated joint ventures | joint_venture | 6 | 6
Cash Deposits | $ 48,649 | $ 53,830
Aggregate Purchase Price | 1,377,183 | 1,371,238
Pre-acquisition costs related to land option contracts and other similar contracts | 46,600 | 46,900
Increase in inventories and accrued expenses and other liabilities | $ 5,500 | $ 21,800
Variable Interest Entity, Not Primary Beneficiary [Member] |  |
Variable Interest Entity [Line Items] |  |
Number of investments in unconsolidated joint ventures | joint_venture | 1 | 1
Cash Deposits | $ 22,820 | $ 26,542
Aggregate Purchase Price | 859,141 | 784,334
Other land option contracts and other similar contracts [Member] |  |
Variable Interest Entity [Line Items] |  |
Cash Deposits | 25,829 | 27,288
Aggregate Purchase Price | $ 518,042 | $ 586,904

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- Definition Acquisition costs related to land option contracts and other similar contracts. + References No definition available. + Details
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Namespace Prefix: | kbh_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Aggregate purchase price associated with land option and other similar contracts. + References No definition available. + Details
Name: | kbh_AggregatePurchasePriceAssociatedWithLandOptionAndOtherSimilarContracts
Namespace Prefix: | kbh_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Cash deposits on land option and other similar contracts. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Increase in inventories and accrued expenses and other liabilities due to land option and other similar contracts. + References No definition available. + Details
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Namespace Prefix: | kbh_
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- Definition Number of investments in unconsolidated joint ventures. + References No definition available. + Details
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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
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Namespace Prefix: | us-gaap_
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Balance Type: | na
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- Details
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Namespace Prefix: |
Data Type: | na
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |