Earnings per Share (Tables)

9 Months Ended

Sep. 30, 2020

Earnings Per Share [Abstract]

Schedule of Earnings Per Share

Amounts attributable to MSA Safety Incorporated common shareholders:	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands, except per share amounts)	2020		2019		2020		2019
Net income	$	28,034	$	42,239	$	107,763	$	105,278
Preferred stock dividends	(10)		(10)		(30)		(30)
Net income available to common equity	28,024		42,229		107,733		105,248
Dividends and undistributed earnings allocated to participating securities	(12)		(88)		(79)		(159)
Net income available to common shareholders	28,012		42,141		107,654		105,089
Basic weighted-average shares outstanding	38,906		38,649		38,853		38,617
Stock-based compensation awards	354		495		416		513
Diluted weighted-average shares outstanding	39,260		39,144		39,269		39,130
Antidilutive stock options	—		—		—		—
Earnings per share:
Basic	$	0.72	$	1.09	$	2.77	$	2.72
Diluted	$	0.71	$	1.08	$	2.74	$	2.69