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Note 7 (Detail) (USD $) | 1 Months Ended |  | 1 Months Ended
--- | --- | --- | ---
Oct. 31, 2012 | Dec. 14, 2011 | Feb. 28, 2013 Subsequent Event [Member]
Loss Contingency Fine Assessed | $ 120,000 |  | $ 130,000
Potential Class, Number of Homes |  | 1,065 |

X
- Definition The value (monetary amount) of the penalties assessed related to violations from the U.S. Environmental Protection Agency. + References No definition available. + Details
Name: | hov_LossContingencyFineAssessed
Namespace Prefix: | hov_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Number of homes in the potential class related to class action law suit filed against Hovnanian Enterprises, Inc. and K. Hovnanian Venture I, L.L.C. + References No definition available. + Details
Name: | hov_PotentialClassNumberOfHomes
Namespace Prefix: | hov_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant