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Note 19 - Fair Value of Financial Instruments - Assets Measured at Fair Value on a Nonrecurring Basis (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2017	Jul. 31, 2016	Jul. 31, 2017	Jul. 31, 2016
Total Losses	$ (3,200)	$ (1,300)	$ (7,400)	$ (16,400)
PreImpairment Value	15,900	5,400	37,000	50,800
Sold and Unsold Homes and Lots Under Development [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Total Losses			(4,136)	(14,399)
Fair Value of Inventory			10,640	29,839
PreImpairment Value			14,776	44,238
Land and Land Options Held for Future Development or Sale [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Total Losses	(3,215)	(1,282)	(3,296)	(1,976)
Fair Value of Inventory	12,637	4,125	18,882	4,600
PreImpairment Value	$ 15,852	$ 5,407	$ 22,178	$ 6,576

X

- Definition

This element represents the fair value of inventory whose carrying value was adjusted to fair value during the period.

+ References

No definition available.

+ Details

Name:	hov_FairValueOfInventory
Namespace Prefix:	hov_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Book value of inventory prior to current period impairment charge.

+ References

No definition available.

+ Details

Name:	hov_PreimpairmentValue
Namespace Prefix:	hov_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84176398&loc=d3e2921-110230

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

+ Details

Name:	us-gaap_ImpairmentOfRealEstate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=hov_SoldAndUnsoldHomesAndLotsUnderDevelopmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsNonrecurringMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=hov_LandAndLandOptionsHeldForFutureDevelopmentOrSaleMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: