EARNINGS PER SHARE (Tables)

9 Months Ended

Sep. 30, 2017

Earnings Per Share [Abstract]

Earnings per share calculation

A summary of the earnings per share calculation is as follows:    

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
(In thousands, except per share amounts)	2017		2016		2017		2016
Basic earnings per share:
Net income	$	16,506	$	12,809	$	44,507	$	34,595
Weighted-average common shares	29,759		28,972		29,646		28,834
Basic earnings per share	$	0.55	$	0.44	$	1.50	$	1.20
Diluted earnings per share: (1)
Net income	$	16,506	$	12,809	$	44,507	$	34,595
Weighted-average common shares	29,759		28,972		29,646		28,834
Effect of dilutive awards:
Employee stock plans	855		653		826		646
Diluted weighted-average common shares	30,614		29,625		30,472		29,480
Diluted earnings per share	$	0.54	$	0.43	$	1.46	$	1.17

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(1) The Company includes the shares underlying performance-based awards in the calculation of diluted earnings per share if the performance conditions have been satisfied as of the end of the reporting period and excludes such shares when the necessary conditions have not been met. The Company has excluded the shares underlying the outstanding performance-based awards in the 2017 and 2016 calculations as the shares were not contingently issuable as of the end of the reporting periods.