Earnings per Share (Tables)

9 Months Ended

Sep. 30, 2017

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)	2017			2016			2017			2016
Net income from continuing operations	$	32,066		$	25,486		$	59,011		$	67,475
Preferred stock dividends	(10		)	(11		)	(30		)	(29		)
Income from continuing operations available to common equity	32,056			25,475			58,981			67,446
Dividends and undistributed earnings allocated to participating securities	(36		)	(38		)	(62		)	(105		)
Income from continuing operations available to common shareholders	32,020			25,437			58,919			67,341
Net loss from discontinued operations	$	—		$	(1,300	)	$	—		$	(455	)
Preferred stock dividends	—			1			—			(1		)
Loss from discontinued operations available to common equity	—			(1,299		)	—			(456		)
Dividends and undistributed earnings allocated to participating securities	—			2			—			1
Loss from discontinued operations available to common shareholders	—			(1,297		)	—			(455		)
Basic weighted-average shares outstanding	38,074			37,487			37,970			37,407
Stock options and other stock compensation	628			625			722			501
Diluted weighted-average shares outstanding	38,702			38,112			38,692			37,908
Antidilutive stock options	—			—			—			—
Earnings per share attributable to continuing operations:
Basic	$	0.84		$	0.68		$	1.55		$	1.80
Diluted	$	0.83		$	0.67		$	1.52		$	1.77
Loss per share attributable to discontinued operations:
Basic	$	—		$	(0.04	)	$	—		$	(0.01	)
Diluted	$	—		$	(0.04	)	$	—		$	(0.01	)