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Note 12 - Reduction of Inventory to Fair Value (Details Textual) $ in Millions	12 Months Ended
	Oct. 31, 2021 USD ($)	Oct. 31, 2020 USD ($)	Oct. 31, 2019 USD ($)
Number of Communities Evaluated for Impairment	374	354
Number of Communities Performed Detailed Impairment Calculations	3	3
Impairment of Real Estate	$ 2.0	$ 2.0	$ 2.7
Land Option Write Offs	1.6	6.8	3.6
Homebuilding [Member]
Carrying Value of Communities Tested for Impairment	11.5	5.4
Impairment of Real Estate	$ 2.0	$ 2.0	$ 2.7
Number of Communities Impaired	3	2	6
Number of Communities Tested for Impairment for Which Undiscounted Future Cash Flow that Did Not Exceed Carrying Amount By Less Than 20 Percent		1
Carrying Value of Communities Tested for Impairment for Which Undiscounted Future Cash Flow Only Exceeded Carrying Amount by Less than 20 Percent		$ 0.6
Percentage Undiscounted Cash Flow Exceeds Carrying Amount		20.00%
Land Option Write Offs	$ 1.6	$ 6.8	$ 3.6
Homebuilding [Member] | Measurement Input, Discount Rate [Member]
Inventory, Measurement Input		0.173
Homebuilding [Member] | Measurement Input, Discount Rate [Member] | Minimum [Member]
Inventory, Measurement Input	0.183		0.173
Homebuilding [Member] | Measurement Input, Discount Rate [Member] | Maximum [Member]
Inventory, Measurement Input	0.193		0.183

X

- Definition

The aggregate carrying value of communities for which detailed impairment calculatons were performed.

+ References

No definition available.

+ Details

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Namespace Prefix:	hov_
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X

- Definition

The aggregate carrying value of communities tested for impairment which had undiscounted future cash flow that only exceeded the carrying amount by less than 20%.

+ References

No definition available.

+ Details

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- Definition

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value.

+ References

No definition available.

+ Details

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- Definition

The charge against earnings in the period to write off costs associated with land options that were terminated.

+ References

No definition available.

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- Definition

Number of communities evaluated for impairment during the period

+ References

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- Definition

Represents the number of communities with impairment losses.

+ References

No definition available.

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- Definition

Number of communities for which detailed impairment calculations were performed during the period.

+ References

No definition available.

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- Definition

The number of communities tested for impairment which had undiscounted future cash flow that did not exceed the carrying amount by less than 20%.

+ References

No definition available.

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- Definition

Percentage by which undiscounted future cash flow for communities tested for impairment exceeds carrying value under which such carrying amounts are disclosed.

+ References

No definition available.

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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=123570139&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

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