Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2014

Earnings Per Share [Abstract]

Schedule of Computation of Basic and Diluted Earnings Per Share

The following table sets forth the computation of basic and diluted earnings per share (in thousands, except per share data):

	For the Three Months Ended				For the Nine Months Ended
	September 30,				September 30,
	2014		2013		2014		2013
Numerator:
Net income	$	38,169	$	40,501	$	93,357	$	89,045
Denominator:
Denominator for basic earnings per share -
weighted average shares		38,450		39,468		38,817		39,732
Effect of dilutive securities:
Employee stock options and restricted units		434		563		427		599
Denominator for diluted earnings per share -
Adjusted weighted average shares and the effect of dilutive
securities		38,884		40,031		39,244		40,331
Net income per share:
Net income per share - basic	$	0.99	$	1.03	$	2.41	$	2.24
Net income per share - diluted	$	0.98	$	1.01	$	2.38	$	2.21