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, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Numerator:
Net income attributable to Inter Parfums, Inc.	$ 16,239	$ 14,220	$ 29,404	$ 28,578
Denominator:
Weighted average shares	31,080	31,005	31,058	30,991
Effect of dilutive securities: Stock options	91	93	80	101
Denominator for diluted earnings per share	31,171	31,098	31,138	31,092
Earnings per share:
Basic	$ 0.52	$ 0.46	$ 0.95	$ 0.92
Diluted	$ 0.52	$ 0.46	$ 0.94	$ 0.92