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Document And Entity Information - USD ($)
 12 Months Ended
Oct. 31, 2024
Dec. 12, 2024
Apr. 30, 2024
Document Information [Line Items]      
Entity Central Index Key 0000357294    
Entity Registrant Name HOVNANIAN ENTERPRISES INC    
Amendment Flag false    
Current Fiscal Year End Date --10-31    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2024    
Document Type 10-K    
Document Annual Report true    
Document Period End Date Oct. 31, 2024    
Document Transition Report false    
Entity File Number 1-8551    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 22-1851059    
Entity Address, Address Line One 90 Matawan Road, Fifth Floor    
Entity Address, City or Town Matawan    
Entity Address, State or Province NJ    
Entity Address, Postal Zip Code 07747    
City Area Code 732    
Local Phone Number 747-7800    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 727,547,193
Auditor Firm ID 34    
Auditor Name DELOITTE & TOUCHE LLP    
Auditor Location New York, New York    
Preferred Stock Purchase Rights [Member]      
Document Information [Line Items]      
Title of 12(b) Security [1] Preferred Stock Purchase Rights    
Security Exchange Name NYSE    
No Trading Symbol Flag true    
Common Class B [Member]      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   729,354  
Common Class A [Member]      
Document Information [Line Items]      
Title of 12(b) Security Class A Common Stock $0.01 par value per share    
Trading Symbol HOV    
Security Exchange Name NYSE    
Entity Common Stock, Shares Outstanding   5,326,091  
Depository Shares [Member]      
Document Information [Line Items]      
Title of 12(b) Security Depositary Shares each representing 1/1,000th of a share of 7.625% Series A Preferred Stock    
Trading Symbol HOVNP    
Security Exchange Name NASDAQ    
[1] Each share of Common Stock includes an associated Preferred Stock Purchase Right. Each Preferred Stock Purchase Right initially represents the right, if such Preferred Stock Purchase Right becomes exercisable, to purchase from the Company one ten-thousandth of a share of its Series B Junior Preferred Stock for each share of Common Stock. The Preferred Stock Purchase Rights currently cannot trade separately from the underlying Common Stock.