CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Income Statement [Abstract]
Net sales	$ 169,531	$ 157,622	$ 441,725	$ 386,301
Cost of sales	66,059	62,790	164,240	145,723
Gross margin	103,472	94,832	277,485	240,578
Selling, general and administrative expenses	70,309	62,529	203,676	179,285
Income from operations	33,163	32,303	73,809	61,293
Other expenses (income):
Interest expense	495	515	1,494	2,181
Loss on foreign currency	335	334	1,308	388
Interest income	(615)	(765)	(2,788)	(2,722)
Other expenses (income)	215	84	14	(153)
Income before income taxes	32,948	32,219	73,795	61,446
Income taxes	10,845	10,740	24,314	22,790
Net income	22,103	21,479	49,481	38,656
Less: Net income attributable to the noncontrolling interest	5,026	5,240	12,287	9,252
Net income attributable to Inter Parfums, Inc.	$ 17,077	$ 16,239	$ 37,194	$ 29,404
Net income attributable to Inter Parfums, Inc. common shareholders:
Basic (in dollars per share)	$ 0.55	$ 0.52	$ 1.19	$ 0.95
Diluted (in dollars per share)	$ 0.55	$ 0.52	$ 1.19	$ 0.94
Weighted average number of shares outstanding:
Basic (in shares)	31,175	31,080	31,163	31,058
Diluted (in shares)	31,307	31,171	31,281	31,138
Dividends declared per share (in dollars per share)	$ 0.17	$ 0.15	$ 0.51	$ 0.45