EARNINGS PER SHARE (Tables)

3 Months Ended

Mar. 31, 2017

Earnings Per Share [Abstract]

Earnings per share calculation

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

	Three Months Ended
	March 31,
(In thousands, except per share amounts)	2017		2016
Basic earnings per share:
Net income	$	14,099	$	10,379
Weighted-average common shares	29,456		28,679
Basic earnings per share	$	0.48	$	0.36
Diluted earnings per share: (1)
Net income	$	14,099	$	10,379
Weighted-average common shares	29,456		28,679
Effect of dilutive awards:
Employee stock plans	792		565
Diluted weighted-average common shares	30,248		29,244
Diluted earnings per share	$	0.47	$	0.35

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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.