(

) Earnings per Common Sha

Basic and diluted earnings per common share were computed as follows:

	Three Months				Nine Months
	Ended September 30,				Ended September 30,
(In thousands, except per share amounts)	2017		2016		2017		2016
Numerator:
Net income	$	7,855	$	8,437	$	25,210	$	25,161
Denominator:
Basic earnings per common share - weighted-average shares		54,517		54,218		54,479		54,126
Effect of d ilutive stock options		373		308		324		296
Diluted earnings per common share - weighted-average shares and assumed conversions		54,890		54,526		54,803		54,422

Basic earnings per common share	$	0.14	$	0.16	$	0.46	$	0.46
Diluted earnings per common share	$	0.14	$	0.15	$	0.46	$	0.46

Options totaling

142,502

and

419,170

equivalent shares for the

three

-month and

nine

-month periods ended

September 30, 2017,

and

413,333

and

573,333

equivalent shares for the

three

-month and

nine

-month periods ended

September 30, 2016,

respectively, were outstanding but were

not

included in the calculation of diluted earnings per share because including the options in the denominator would be antidilutive, or decrease the number of weighted-average shares, due to their exercise prices exceeding the average market price of the common shares, or because inclusion of average unrecognized compensation expense in the calculation would cause the options to be antidilutive.

Unvested performance unit awards totaling

118,650

equivalent shares for each of the

three

-month and

nine

-month periods ended

September 30, 2017,

and

70,905

equivalent shares for each of the

three

-month and

nine

-month periods ended

September 30, 2016,

were considered outstanding but were

not

included in the calculation of diluted earnings per share because inclusion of average unrecognized compensation expense in the calculation would cause the performance units to be antidilutive.