EARNINGS PER SHARE (Tables)

6 Months Ended

Jun. 30, 2014

Earnings Per Share [Abstract]

Reconciliation of basic and diluted earnings per share computations

The following are computations of basic and diluted earnings per share (in thousands except for per share amounts):

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2014		2013		2014		2013
Numerator for basic and diluted earnings per share:
Net income	$	28,672	$	22,902	$	37,632	$	33,404
Denominator:
Basic shares outstanding	60,665		60,550		60,695		60,507
Dilutive effect of equity-based compensation awards	113		137		127		151
Dilutive shares outstanding	60,778		60,687		60,822		60,658
Basic earnings per share:	$	0.47	$	0.38	$	0.62	$	0.55
Diluted earnings per share:	$	0.47	$	0.38	$	0.62	$	0.55