XML 84 R69.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Commitments and Contingencies (Details Textuals) - USD ($) | 12 Months Ended
--- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2014
Loss Contingency [Abstract] |  |  |
Amount of Captive Insurance - Aggregate Limit | $ 25,000,000 |  |
Amount of Captive Insurance - Individual Claim Limit | 250,000 |  |
Reinsurance coverage acquired by captive insurance subsidiary | 15,000,000 |  |
Captive Insurance - Aggregate amount beyond reinsurance coverage | 10,000,000 |  |
Captive Insurance - Individual claim limit beyond reinsurance coverage | 250,000 |  |
Maximum amount deductible under workers compensation insurance policy | 500,000 |  |
Deductible policy amount per occurrence | 500,000 |  |
Other Commitments [Abstract] |  |  |
Surety bonds | 1,100,000,000 |  |
Outstanding letters of credit | 96,400,000 |  |
Rent expense | 24,700,000 | $ 22,400,000 | $ 19,300,000
Letter of credit, other [Member] |  |  |
Other Commitments [Abstract] |  |  |
Outstanding letters of credit | 2,900,000 |  |
Homebuilding [Member] |  |  |
Loss Contingency [Abstract] |  |  |
Liabilities for various claims, complaints and other legal actions | $ 423,500,000 | $ 451,000,000 | 456,900,000
Construction defect portion of loss contingency accrual | 93.00% | 99.00% |
Expenses related to legal claims | $ 49,600,000 | $ 43,400,000 | $ 18,900,000
Estimated insurance recoveries related to legal claims | 88,700,000 | $ 126,500,000 |
Land and Lot Option Purchase Contracts [Abstract] |  |  |
Deposits | 167,000,000 |  |
Purchase Obligation | 3,600,000,000 |  |
Homebuilding [Member] | Revolving credit facility, maturing 2018 [Member] |  |  |
Other Commitments [Abstract] |  |  |
Outstanding letters of credit | 93,500,000 |  |
Homebuilding [Member] | Cash Deposits [Member] |  |  |
Land and Lot Option Purchase Contracts [Abstract] |  |  |
Deposits | 156,100,000 |  |
Homebuilding [Member] | Promissory Notes And Surety Bonds [Member] |  |  |
Land and Lot Option Purchase Contracts [Abstract] |  |  |
Deposits | 10,900,000 |  |
Individual Claim Limit [Member] |  |  |
Loss Contingency [Abstract] |  |  |
Self-insurance limits | 250,000.00 |  |
Aggregate Limit [Member] |  |  |
Loss Contingency [Abstract] |  |  |
Self-insurance limits | 15,000,000 |  |
Option Contracts Subject to Specific Performance Clauses [Member] | Homebuilding [Member] |  |  |
Land and Lot Option Purchase Contracts [Abstract] |  |  |
Purchase Obligation | 38,100,000 |  |
Minimum [Member] |  |  |
Loss Contingency [Abstract] |  |  |
Amount of self insurance | 10,000,000 |  |
Maximum [Member] |  |  |
Loss Contingency [Abstract] |  |  |
Amount of self insurance | $ 17,500,000 |  |

X
- Definition Amount of self insurance. + References No definition available. + Details
Name: | dhi_AmountOfSelfInsurance
Namespace Prefix: | dhi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of Captive Insurance - Aggregate Limit + References No definition available. + Details
Name: | dhi_AmountofCaptiveInsuranceAggregateLimit
Namespace Prefix: | dhi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of Captive Insurance - Individual Claim Limit + References No definition available. + Details
Name: | dhi_AmountofCaptiveInsuranceIndividualClaimLimit
Namespace Prefix: | dhi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Captive Insurance - Aggregate amount beyond reinsurance coverage + References No definition available. + Details
Name: | dhi_CaptiveInsuranceAggregateamountbeyondreinsurancecoverage
Namespace Prefix: | dhi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Captive Insurance - Individual claim limit beyond reinsurance coverage + References No definition available. + Details
Name: | dhi_CaptiveInsuranceIndividualclaimlimitbeyondreinsurancecoverage
Namespace Prefix: | dhi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The portion of the total reserve for legal claims that relates to the entity's construction defect matters, expressed as a percentage. + References No definition available. + Details
Name: | dhi_ConstructionDefectPortionOfLossContingencyAccrual
Namespace Prefix: | dhi_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Deductible policy amount per occurrence. + References No definition available. + Details
Name: | dhi_DeductiblePolicyAmountPerOccurrence
Namespace Prefix: | dhi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Land and lot option purchase contracts. + References No definition available. + Details
Name: | dhi_LandAndLotOptionPurchaseContractsAbstract
Namespace Prefix: | dhi_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum amount deductible under workers compensation insurance policy. + References No definition available. + Details
Name: | dhi_MaximumAmountDeductiblePerOccurrenceUnderWorkersCompensationInsurancePolicy
Namespace Prefix: | dhi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Reinsurance coverage acquired by captive insurance subsidiary. + References No definition available. + Details
Name: | dhi_ReinsuranceCoverageAcquiredByCaptiveInsuranceSubsidiary
Namespace Prefix: | dhi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Description regarding the aggregate and per occurrence limits related to the self-insured portion of our coverage. + References No definition available. + Details
Name: | dhi_SelfInsuranceLimits
Namespace Prefix: | dhi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition A deposit made by a purchaser of real estate to evidence good faith. It is customary for a buyer to give the seller earnest money at the time a sales contract is signed. The earnest money generally is credited to the down payment at closing, which is applied at closing as a component of payment against the purchase price. + References No definition available. + Details
Name: | us-gaap_EarnestMoneyDeposits
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount due in settlement of a claim for reimbursement from an insurance company when the Company has suffered a loss covered under an insurance policy. + References No definition available. + Details
Name: | us-gaap_InsuranceSettlementsReceivable
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- 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

X
- Definition Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees. + References No definition available. + Details
Name: | us-gaap_LitigationSettlementExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- 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 + Details
Name: | us-gaap_LossContingencyAccrualAtCarryingValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717 + Details
Name: | us-gaap_OperatingLeasesRentExpenseNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Definition Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier. + References No definition available. + Details
Name: | us-gaap_PurchaseObligation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The noncurrent portion of the carrying value as of the balance sheet date of a type of municipal bond typically used to fund a development project. Also called special assessment limited liability bond, special district bond, special purpose bond, special tax bond and community development obligation. Interest owed to lenders is paid by taxes levied on the community benefiting from the particular bond-funded project. For example, if a bond of this sort was issued to pay for sidewalks to be repaved in a certain community, an additional tax would be levied on homeowners in the area benefiting from this project. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)(a)(2)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_SpecialAssessmentBondNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_StandbyLettersOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=dhi_HomebuildingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_LineOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dhi_TypesOfDepositsAxis=dhi_CashDepositsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dhi_TypesOfDepositsAxis=dhi_PromissoryNotesAndSuretyBondsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dhi_SelfInsuranceAxis=dhi_IndividualClaimLimitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dhi_SelfInsuranceAxis=dhi_AggregateLimitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=us-gaap_PerformanceGuaranteeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |