Earnings per Share (Tables)

12 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Schedule of Earnings per Share

Amounts attributable to MSA Safety Incorporated common shareholders:
(In thousands, except per share amounts)	2021		2020		2019
Net income	$	21,340	$	124,077	$	137,998
Preferred stock dividends	(41)		(41)		(42)
Net income available to common equity	21,299		124,036		137,956
Dividends and undistributed earnings allocated to participating securities	(24)		(84)		(183)
Net income available to common shareholders	$	21,275	$	123,952	$	137,773
Basic weighted-average shares outstanding	39,173		38,885		38,653
Stock options and other stock-based awards	276		401		536
Diluted weighted-average shares outstanding	39,449		39,286		39,189
Antidilutive stock options	—		—		—
Earnings per share:
Basic	$	0.54	$	3.19	$	3.56
Diluted	$	0.54	$	3.15	$	3.52
* Year ended December 31, 2020 and 2019 amounts have been adjusted to reflect the change in inventory accounting method, as described in Notes 1 and 4 to the consolidated financial statements.