Reconciliation of Basic and Diluted Shares (Tables)

6 Months Ended

Jun. 30, 2022

Earnings Per Share [Abstract]

Reconciliation of basic and diluted shares

	Three Months Ended				Six Months Ended
	June 30				June 30
(In thousands, except per share amounts)	2022		2021		2022		2021
Income (loss) from continuing operations attributable to Harsco Corporation common stockholders	$	(106,700)	$	8,540	$	(114,033)	$	6,975
Weighted-average shares outstanding:
Weighted-average shares outstanding - basic	79,509		79,265		79,437		79,177
Dilutive effect of stock-based compensation	—		1,509		—		1,220
Weighted-average shares outstanding - diluted	79,509		80,774		79,437		80,397
Earnings (loss) from continuing operations per common share, attributable to Harsco Corporation common stockholders:
Basic	$	(1.34)	$	0.11	$	(1.44)	$	0.09
Diluted	$	(1.34)	$	0.11	$	(1.44)	$	0.09

Schedule of antidilutive securities excluded from computation of earnings per share

The following average outstanding stock-based compensation units were not included in the computation of diluted earnings per share because the effect was either antidilutive or the market conditions for the performance share units were not met:

	Three Months Ended		Six Months Ended
	June 30		June 30
(In thousands)	2022	2021	2022	2021
Restricted stock units	797	—	811	—
Stock appreciation rights	2,193	467	2,422	656
Performance share units	1,128	690	1,177	851