Segments and Geographic Areas (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Segment Reporting Information [Line Items]
Net sales	$ 169,531	$ 157,622	$ 441,725	$ 386,301
Net income attributable to Inter Parfums, Inc.	17,077	16,239	37,194	29,404
Total assets	765,673		765,673		$ 682,409
United States [Member]
Segment Reporting Information [Line Items]
Net sales	35,690	34,251	81,977	82,197
Net income attributable to Inter Parfums, Inc.	3,668	2,850	5,134	4,804
Total assets	98,747		98,747		89,930
Europe [Member]
Segment Reporting Information [Line Items]
Net sales	134,639	123,405	361,172	304,217
Net income attributable to Inter Parfums, Inc.	13,409	13,389	32,060	24,600
Total assets	676,519		676,519		602,077
Eliminations [Member]
Segment Reporting Information [Line Items]
Net sales	(798)	$ (34)	(1,424)	$ (113)
Total assets	$ (9,593)		$ (9,593)		$ (9,598)