Equity (Tables)

12 Months Ended

Dec. 31, 2019

Stockholders' Equity Note [Abstract]

Schedule of Nonvested Share Activity [Table Text Block]

The following table sets forth information with respect to nonvested options for 2019:

	Number of Shares Grant Date			Weighted Average Grant Date Fair Value Grant Date
Nonvested options – beginning of year		485,360		$	10.72
Nonvested options granted		194,050		$	14.14
Nonvested options vested or forfeited		(165,200	)	$	9.65
Nonvested options – end of year		514,210		$	12.36

Share-based Payment Arrangement, Activity [Table Text Block]

The effect of share-based payment expenses decreased income statement line items as follows:

	Year Ended December 31,
	2019		2018		2017
Income before income taxes	$	3,390	$	2,200	$	2,100
Net income attributable to Inter Parfums, Inc.		2,060		1,390		1,150
Diluted earnings per share attributable to Inter Parfums, Inc.		0.07		0.04		0.04

Share-based Payment Arrangement, Option, Activity [Table Text Block]

The following table summarizes stock option activity and related information for the years ended December 31, 2019, 2018 and 2017:

	Year ended December 31,
	2019					2018					2017
	Options			Weighted Average Exercise Price		Options			Weighted Average Exercise Price		Options			Weighted Average Exercise Price
Shares under option - beginning of year		776,171		$	41.33		730,980		$	31.92		684,540		$	26.94
Options granted		194,050			72.89		196,350			63.91		174,600			43.48
Options exercised		(130,891	)		34.06		(140,579	)		24.21		(103,230	)		19.03
Options forfeited		(23,530	)		45.48		(10,580	)		37.64		(24,930	)		29.49
Shares under option - end of year		815,800			49.89		776,171			41.33		730,980			31.92

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

The assumptions used in the Black-Scholes pricing model are set forth in the following table:

	Year Ended December 31,
	2019			2018			2017
Weighted-average expected stock-price volatility		25	%		27	%		28	%
Weighted-average expected option life		5.0 years			5.0 years			5.0 years
Weighted-average risk-free interest rate		1.7	%		2.5	%		2.2	%
Weighted-average dividend yield		2.0	%		2.0	%		2.0	%

Cash Proceeds Received and Tax Benefit from Share-based Payment Awards [Table Text Block]

Proceeds, tax benefits and intrinsic value related to stock options exercised were as follows:

	Year Ended December 31,
	2019		2018		2017
Proceeds from stock options exercised	$	4,458	$	3,406	$	1,963
Tax benefits	$	690	$	807	$	600
Intrinsic value of stock options exercised	$	4,520	$	4,310	$	2,258

Share-based Payment Arrangement, Option, Exercise Price Range [Table Text Block]

The following table summarizes additional stock option information as of December 31, 2019:

		Options		Options outstanding weighted average remaining	Options
	Exercise prices	outstanding		contractual life	exercisable
	$23.61 - $27.80		179,740	1.52 years		153,820
	$32.83 - $33.95		108,280	2.97 years		57,180
	$40.15 - $46.90		158,380	3.96 years		55,520
	$65.25-$66.46		181,350	4.97 years		35,070
	$73.09		188,050	6.00 years		—
Totals			815,800	3.99 years		301,590