(Loss) Earnings Per Common Share

3 Months Ended

Mar. 31, 2019

(Loss) Earnings Per Common Share [Abstract]

(Loss) Earnings Per Common Share

Note 12.  (Loss) Earnings Per Common Share

The following table presents the reconciliation of the numerator and denominator for calculating (loss) earnings per common share from net (loss) income (in thousands, except per share data):

	Three Months Ended
	March 31,
	2019		2018
Numerator—Basic
Net (loss) income	$	(9,878)	$	11,865
Less: income attributable to participating shares		—		399
Less: income attributable to non-controlling interest		2,088		887
Net (loss) income attributable to NCS Multistage Holdings, Inc.––Basic	$	(11,966)	$	10,579
Numerator—Diluted
Net (loss) income	$	(9,878)	$	11,865
Less: income attributable to non-controlling interest		2,088		887
Net (loss) income attributable to NCS Multistage Holdings, Inc.––Diluted	$	(11,966)	$	10,978
Denominator
Basic weighted average number of shares		45,974		44,252
Exchangeable shares for common stock		—		1,543
Dilutive effect of stock options, RSUs, PSUs and ESPP		—		1,319
Diluted weighted average number of shares		45,974		47,114
(Loss) earnings per common share
Basic	$	(0.26)	$	0.24
Diluted	$	(0.26)	$	0.23
Potentially dilutive securities excluded as anti-dilutive		4,391		-