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Note 12 - Reduction of Inventory to Fair Value - Inventory Impairments by Homebuilding Segment (Details) $ in Millions		12 Months Ended
		Oct. 31, 2020 USD ($)	Oct. 31, 2019 USD ($)	Oct. 31, 2018 USD ($)
Dollar amount of impairment		$ 2.0	$ 2.7	$ 2.1
Homebuilding [Member]
Number of communities		2	6	5
Dollar amount of impairment		$ 2.0	$ 2.7	$ 2.1
Pre-impairment value	[1]	$ 4.8	$ 17.5	$ 11.2
Homebuilding [Member] | Northeast [Member]
Number of communities		0	2	1
Dollar amount of impairment		$ 0.0	$ 0.2	$ 0.4
Pre-impairment value	[1]	$ 0.0	$ 7.8	$ 1.0
Homebuilding [Member] | Mid-Atlantic [Member]
Number of communities		0	1	0
Dollar amount of impairment		$ 0.0	$ 0.3	$ 0.0
Pre-impairment value	[1]	$ 0.0	$ 1.7	$ 0.0
Homebuilding [Member] | Midwest [Member]
Number of communities		2	1	1
Dollar amount of impairment		$ 2.0	$ 1.4	$ 0.1
Pre-impairment value	[1]	$ 4.8	$ 4.6	$ 0.5
Homebuilding [Member] | Southeast [Member]
Number of communities		0	1	3
Dollar amount of impairment		$ 0.0	$ 0.7	$ 1.6
Pre-impairment value	[1]	$ 0.0	$ 2.2	$ 9.7
Homebuilding [Member] | Southwest [Member]
Number of communities		0	1	0
Dollar amount of impairment		$ 0.0	$ 0.1	$ 0.0
Pre-impairment value	[1]	$ 0.0	$ 1.2	$ 0.0
Homebuilding [Member] | West [Member]
Number of communities		0	0	0
Dollar amount of impairment		$ 0.0	$ 0.0	$ 0.0
Pre-impairment value	[1]	$ 0.0	$ 0.0	$ 0.0
[1] Represents carrying value, net of prior period impairments, if any, at the time of recording the applicable period's impairments.

X

- Definition

Represents the number of communities with impairment losses.

+ References

No definition available.

+ Details

Name:	hov_NumberOfCommunitiesImpaired
Namespace Prefix:	hov_
Data Type:	xbrli:integerItemType
Balance Type:	na
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/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

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=hov_HomebuildingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementGeographicalAxis=hov_NortheastMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementGeographicalAxis=hov_MidatlanticMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementGeographicalAxis=hov_MidwestMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementGeographicalAxis=hov_SoutheastMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementGeographicalAxis=hov_SouthwestMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementGeographicalAxis=hov_WestMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: