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Note 21 - Fair Value of Financial Instruments (Details Textual) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Oct. 31, 2018 | Oct. 31, 2017 | Oct. 31, 2016
Loans Held for Sale Mortgages Unpaid Principal | $ 127.6 | $ 128.4 |
Other Commitment, Total | 26.5 |  |
Impairment of Real Estate | 2.1 | $ 15.1 | $ 24.5
Loan Origination Commitments [Member] |  |  |
Loan Applications in Process | $ 429.0 |  |
Loan Origination Commitments [Member] | Maximum [Member] |  |  |
Number of Days in Committment | 60 days |  |
Interest Rate Committed Loan Applications [Member] |  |  |
Interest Rate Committed Loan Applications | $ 41.5 |  |

X
- Definition Value of loan applications in process with committed interest rates at the end of the period. + References No definition available. + Details
Name: | hov_InterestRateCommittedLoanApplications
Namespace Prefix: | hov_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Value of loan applications in process at the end of the period. + References No definition available. + Details
Name: | hov_LoanApplicationsInProcess
Namespace Prefix: | hov_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Mortgage loans held for sale unpaid principal. + References No definition available. + Details
Name: | hov_LoansHeldForSaleMortgagesUnpaidPrincipal
Namespace Prefix: | hov_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The number of days for which loans are committed. + References No definition available. + Details
Name: | hov_NumberOfDaysInCommittment
Namespace Prefix: | hov_
Data Type: | xbrli:durationItemType
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=109223946&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 Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions. + References No definition available. + Details
Name: | us-gaap_OtherCommitment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_LoanOriginationCommitmentsMember
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_FinancialInstrumentAxis=hov_InterestRateCommittedLoanApplicationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |