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Share-Based Payments (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Term of employee stock options     6 years  
Employee stock options, fair value of shares vested     $ 30 $ 30
Decrease in income before income tax due to share-based payment expense $ 200 $ 230 390 460
Decrease in income attributable to Inter Parfums, Inc due to share-based payment expense 120 $ 150 $ 240 $ 260
Weighted average remaining contractual life of options outstanding     3 years 6 months  
Weighted average remaining contractual life of options exercisable     2 years 2 months 8 days  
Aggregate intrinsic value of options outstanding 6,700   $ 6,700  
Aggregate intrinsic value of options exercisable 3,600   3,600  
Unrecognized compensation cost related to stock options $ 2,300   $ 2,300  
Weighted average grant date fair value     $ 6.73 $ 8.37
Minimum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period     4 years  
Maximum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period     5 years