XML 71 R59.htm IDEA: XBRL DOCUMENT
v3.20.2

Inventory Impairments and Land Option Contract Abandonments (Narratives) (Details) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Aug. 31, 2020 USD ($) lot delivery Rate | Aug. 31, 2019 USD ($) delivery Rate | Aug. 31, 2020 USD ($) lot delivery property Rate | Aug. 31, 2019 USD ($) delivery property Rate | Nov. 30, 2019 USD ($) property
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |  |  |  |  |
Number of land parcels or communities evaluated for recoverability | property |  |  |  | 22 | 31 |
Carrying value of communities or land parcels evaluated for impairment |  | $ 191,800,000 | $ 219,200,000 | $ 191,800,000 | $ 219,200,000 |
Inventory impairment charges |  | $ 6,500,000 | $ 4,800,000 | 11,600,000 | $ 11,500,000 |
Deliveries per month | delivery | [1] | 2 |  |  |  |
Aggregate carrying value of inventory impacted by pretax, noncash inventory impairment charges |  | $ 89,400,000 |  | $ 89,400,000 |  | $ 115,600,000
Number of communities and various other land parcels impacted by pretax, noncash inventory impairment charges |  | 16 |  | 16 |  | 19
Measurement Input, Discount Rate [Member] |  |  |  |  |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |  |  |  |  |
Discount Rate, Percent | Rate | [1] |  | 17.00% |  | 17.00% |
Minimum [Member] |  |  |  |  |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |  |  |  |  |
Average Selling price | [1] | $ 301,600 | $ 325,300 | $ 301,600 | $ 315,000 |
Deliveries per month | delivery | [1] |  | 2 | 1 | 1 |
Minimum [Member] | Measurement Input, Discount Rate [Member] |  |  |  |  |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |  |  |  |  |
Discount Rate, Percent | Rate | [1] | 17.00% |  | 17.00% |  |
Maximum [Member] |  |  |  |  |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |  |  |  |  |
Average Selling price | [1] | $ 1,010,100 | $ 957,200 | $ 1,010,100 | $ 1,045,400 |
Deliveries per month | delivery | [1] |  | 4 | 4 | 4 |
Maximum [Member] | Measurement Input, Discount Rate [Member] |  |  |  |  |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |  |  |  |  |
Discount Rate, Percent | Rate | [1] | 18.00% |  | 18.00% |  |
Land Option Contract Abandonment [Member] |  |  |  |  |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |  |  |  |  |  |
Land option contract abandonment charges |  | $ 400,000 | $ 400,000 | $ 5,400,000 | $ 1,700,000 |
[1] | The ranges of inputs used in each period primarily reflect differences between the housing markets where each impacted community is located, rather than fluctuations in prevailing market conditions.

X
- Definition Aggregate carrying value of inventory impacted by pretax, noncash inventory impairment charges. + References No definition available. + Details
Name: | kbh_AggregateCarryingValueOfInventoryImpactedByPretaxNoncashInventoryImpairmentCharges
Namespace Prefix: | kbh_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Carrying Value of Communities or Land Parcels Evaluated for Impairment + References No definition available. + Details
Name: | kbh_CarryingValueofCommunitiesorLandParcelsEvaluatedforImpairment
Namespace Prefix: | kbh_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Discount Rate, Percent + References No definition available. + Details
Name: | kbh_DiscountRatePercent
Namespace Prefix: | kbh_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value estimate input, average selling price + References No definition available. + Details
Name: | kbh_FairValueEstimateInputAverageSellingPrice
Namespace Prefix: | kbh_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Fair value estimate input, delivery for period + References No definition available. + Details
Name: | kbh_FairValueEstimateInputDeliveryForPeriod
Namespace Prefix: | kbh_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of communities and various other land parcels impacted by pretax, noncash inventory impairment charges. + References No definition available. + Details
Name: | kbh_NumberOfCommunitiesAndVariousOtherLandParcelsImpactedByPretaxNoncashInventoryImpairmentCharges
Namespace Prefix: | kbh_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of land parcels or communities evaluated for recoverability. + References No definition available. + Details
Name: | kbh_NumberOfLandParcelsOrCommunitiesEvaluatedForRecoverability
Namespace Prefix: | kbh_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- 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_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The charge against earnings in the period to reduce the carrying amount of real property to fair value. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109226691&loc=d3e2921-110230 + Details
Name: | us-gaap_ImpairmentOfRealEstate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The loss recognized on termination of a contract. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 912 -SubTopic 275 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=84167019&loc=d3e54681-109401 + Details
Name: | us-gaap_LossOnContractTermination
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputDiscountRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=kbh_LandOptionContractAbandonmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |