NET INCOME (LOSS) PER COMMON SHARE (Tables)

6 Months Ended

Jun. 30, 2014

NET INCOME (LOSS) PER COMMON SHARE

Schedule of calculation of basic and diluted earnings per common share

	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands, except for per share amounts)	2014		2013		2014		2013
Numerator:
Net income (loss)	$	12,746	$	478	$	30,684	$	(5,002	)
Denominator for basic net income (loss) per share	58,106		56,562		57,827		56,512
Net effect of potential dilutive common shares	2,324		580		2,431		—
Denominator for diluted net income (loss) per share:	60,430		57,142		60,258		56,512
Basic net income (loss) per share	$	0.22	$	0.01	$	0.53	$	(0.09	)
Diluted net income (loss) per share	$	0.21	$	0.01	$	0.51	$	(0.09	)