Earnings per Share (Tables)

3 Months Ended

Mar. 31, 2021

Earnings Per Share [Abstract]

Schedule of Earnings Per Share

Amounts attributable to MSA Safety Incorporated common shareholders:	Three Months Ended March 31,
(In thousands, except per share amounts)	2021		2020
Net income	$	36,414	$	43,674
Preferred stock dividends	(10)		(10)
Net income available to common equity	36,404		43,664
Dividends and undistributed earnings allocated to participating securities	(14)		(33)
Net income available to common shareholders	36,390		43,631
Basic weighted-average shares outstanding	39,094		38,824
Stock-based compensation awards	326		528
Diluted weighted-average shares outstanding	39,420		39,352
Antidilutive stock options	—		—
Earnings per share:
Basic	$	0.93	$	1.12
Diluted	$	0.92	$	1.11