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Net Income Attributable to Inter Parfums, Inc Common Shareholders (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Numerator:        
Net income attributable to Inter Parfums, Inc. $ 14,220 $ 11,113 $ 28,578 $ 26,115
Effect of dilutive securities of consolidated subsidiary
Numerator for diluted earnings per share $ 14,220 $ 11,113 $ 28,578 $ 26,115
Denominator:        
Weighted average shares 31,005 30,941 30,991 30,927
Effect of dilutive securities: Stock options 93 113 101 133
Denominator for diluted earnings per share 31,098 31,054 31,092 31,060
Earnings per share:        
Basic $ 0.46 $ 0.36 $ 0.92 $ 0.84
Diluted $ 0.46 $ 0.36 $ 0.92 $ 0.84
Stock Options [Member]        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Potentially antidilutive common shares 270 130 270 130