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Cover - USD ($)
 12 Months Ended
Dec. 31, 2023
Feb. 26, 2024
Jun. 30, 2023
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Dec. 31, 2023    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2023    
Current Fiscal Year End Date --12-31    
Entity File Number 0-16469    
Entity Registrant Name Inter Parfums, Inc.    
Entity Central Index Key 0000822663    
Entity Tax Identification Number 13-3275609    
Entity Incorporation, State or Country Code DE    
Entity Address, Address Line One 551 Fifth Avenue    
Entity Address, City or Town New York    
Entity Address, State or Province NY    
Entity Address, Postal Zip Code 10176    
City Area Code 212    
Local Phone Number 983.2640    
Title of 12(b) Security Common Stock, $.001 par value per share    
Trading symbol IPAR    
Security Exchange Name NASDAQ    
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    
Entity Shell Company false    
Entity Public Float     $ 2,437,984,859
Entity Common Stock, Shares Outstanding   32,021,700  
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction [Flag] false    
Auditor Firm ID 339    
Auditor Name Mazars USA LLP    
Auditor Location New York, New York