Earnings per Share (Tables)

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

Schedule of Earnings Per Share

Amounts attributable to MSA Safety Incorporated common shareholders:	Three Months Ended June 30,				Six Months Ended June 30,
(In thousands, except per share amounts)	2021		2020		2021		2020
Net income	$	25,125	$	36,066	$	61,539	$	79,741
Preferred stock dividends	(10)		(10)		(20)		(20)
Net income available to common equity	25,115		36,056		61,519		79,721
Dividends and undistributed earnings allocated to participating securities	(8)		(34)		(21)		(67)
Net income available to common shareholders	25,107		36,022		61,498		79,654
Basic weighted-average shares outstanding	39,167		38,830		39,131		38,826
Stock-based compensation awards	253		365		290		447
Diluted weighted-average shares outstanding	39,420		39,195		39,421		39,273
Antidilutive stock options	—		—		—		—
Earnings per share:
Basic	$	0.64	$	0.93	$	1.57	$	2.05
Diluted	$	0.64	$	0.92	$	1.56	$	2.03