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Note 12 - Reduction of Inventory to Fair Value (Details Textual) $ in Thousands	12 Months Ended
	Oct. 31, 2019 USD ($)	Oct. 31, 2018 USD ($)	Oct. 31, 2017 USD ($)
Number of Communities Evaluated for Impairment	393	391
Number of Communities Performed Detailed Impairment Calculations	9	5
Carrying Value of Communities Tested for Impairment	$ 58,900	$ 11,200
Impairment of Real Estate	2,700	2,100	$ 15,100
Land Option Write Offs	3,600	1,400	2,700
Homebuilding [Member]
Impairment of Real Estate	$ 2,700	$ 2,100	$ 15,100
Number of Communities Tested for Impairment for Which Undiscounted Future Cash Flow Only Exceeded Carrying Amount By Less Than 20 Percent	3
Carrying Value of Communities Tested for Impairment for Which Undiscounted Future Cash Flow Only Exceeded Carrying Amount by Less than 20 Percent	$ 41,300
Percentage Undiscounted Cash Flow Exceeds Carrying Amount	20.00%
Number of Communities Impaired	6	5	10
Land Option Write Offs	$ 3,600	$ 1,400	$ 2,700
Minimum [Member] | Homebuilding [Member] | Measurement Input, Discount Rate [Member]
Inventory, Measurement Input	0.173	0.183	0.168
Maximum [Member] | Homebuilding [Member] | Measurement Input, Discount Rate [Member]
Inventory, Measurement Input	0.198	0.183	0.198

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.

+ Details

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X

- Definition

Number of communities evaluated for impairment during the period

+ References

No definition available.

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- Definition

Represents the number of communities with impairment losses.

+ References

No definition available.

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Namespace Prefix:	hov_
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X

- Definition

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

+ References

No definition available.

+ Details

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- Definition

Represents the number 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

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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Namespace Prefix:	hov_
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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=118932676&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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