Net Income Per Share (Tables)

12 Months Ended

Dec. 31, 2018

Earnings Per Share [Abstract]

Reconciliation of Shares Used in Computations of Basic and Diluted Net Income Per Share

Basic and diluted net income per share is based on the weighted average number of shares outstanding. A reconciliation of shares used in the computation of basic and diluted net income per share is as follows:

(DOLLARS IN THOUSANDS)	2018			2017		2016
Net Income
Net income attributable to IFF stockholders	$	337,302		$	295,665	$	405,031
Less: Increase in redemption value of redeemable noncontrolling interests in excess of earnings allocated	(2,848		)	—		—
Net income available to IFF stockholders	$	334,454		$	295,665	$	405,031
Shares
Weighted average common shares outstanding (basic)(1)	87,551			79,070		79,648
Adjustment for assumed dilution(2):
Stock options and restricted stock awards	303			300		333
SPC portion of the TEUs	267			—		—
Weighted average shares assuming dilution (diluted)	88,121			79,370		79,981
Net Income per Share
Net income per share - basic	$	3.81		$	3.73	$	5.07
Net income per share - dilutive	3.79			3.72		5.05

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(1) For the twelve months ended December 31, 2018, the TEUs were assumed to be outstanding at the minimum settlement amount for weighted-average shares for basic earnings per share. See below for details.

(2) Effect of dilutive securities includes dilution under stock plans and incremental impact of TEUs. See below for details.