Net Income Attributable to Inter Parfums, Inc. and Transfers from the Noncontrolling Interest (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Noncontrolling Interest [Abstract]
Net income attributable to Inter Parfums, Inc.	$ 53,793	$ 41,594	$ 33,331
Decrease in Inter Parfums, Inc.'s additional paid-in capital for subsidiary share transactions			(1,926)
Change from net income attributable to Inter Parfums, Inc. and transfers from noncontrolling interest	$ 53,793	$ 41,594	$ 31,405