Earnings per Share ("EPS") (Tables)

12 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Calculations of basic and diluted EPS

The calculations of basic and diluted EPS are as follows:

	Year Ended December 31, 2021
	Net Income Attributable to Kraton		Weighted Average Shares Outstanding	Earnings Per Share
	(In thousands, except per share data)
Basic:
As reported	$	170,226	32,108
Amounts allocated to unvested restricted shares	(56)		(10)
Amounts available to common stockholders	170,170		32,098	$	5.30
Diluted:
Amounts allocated to unvested restricted shares	56		10
Non participating share units			474
Stock options added under the treasury stock method			70
Amounts reallocated to unvested restricted shares	(55)		(10)
Amounts available to stockholders and assumed conversions	$	170,171	32,642	$	5.21

	Year Ended December 31, 2020
	Net Loss Attributable to Kraton		Weighted Average Shares Outstanding	Earnings Per Share
	(In thousands, except per share data)
Basic:
As reported	$	(225,602)	31,845
Amounts allocated to unvested restricted shares	701		(99)
Amounts available to common stockholders	(224,901)		31,746	$	(7.08)
Diluted:
Amounts allocated to unvested restricted shares	(701)		99
Non participating share units			—
Stock options added under the treasury stock method			—
Amounts reallocated to unvested restricted shares	701		(99)
Amounts available to stockholders and assumed conversions	$	(224,901)	31,746	$	(7.08)

	Year Ended December 31, 2019
	Net Income Attributable to Kraton		Weighted Average Shares Outstanding	Earnings Per Share
	(In thousands, except per share data)
Basic:
As reported	$	51,305	31,828
Amounts allocated to unvested restricted shares	(399)		(247)
Amounts available to common stockholders	50,906		31,581	$	1.61
Diluted:
Amounts allocated to unvested restricted shares	399		247
Non participating share units			259
Stock options added under the treasury stock method			41
Amounts reallocated to unvested restricted shares	(395)		(247)
Amounts available to stockholders and assumed conversions	$	50,910	31,881	$	1.60