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Net Income Attributable to Inter Parfums, Inc. Common Shareholders (Details Narrative) - shares
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Earnings Per Share [Abstract]        
Antidilutive securities excluded from computation of earnings per share, amount 180,000 260,000 180,000 260,000