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Net Income Attributable to Inter Parfums, Inc. Common Shareholders (Tables)
12 Months Ended
Dec. 31, 2020
Earnings Per Share [Abstract]  
Schedule of earnings per share, basic and diluted
   Year ended December 31, 
   2020   2019   2018 
             
Numerator for diluted earnings per share  $38,219   $60,249   $53,793 
Denominator:               
Weighted average shares   31,536,659    31,451,093    31,307,991 
Effect of dilutive securities:               
Stock options   117,885    237,607    214,380 
                
Denominator for diluted earnings per share   31,654,544    31,688,700    31,522,371 
                
Earnings per share:               
Net income attributable to Inter Parfums, Inc. common shareholders:               
Basic  $1.21   $1.92   $1.72 
Diluted   1.21    1.90    1.71