Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2014

Earnings Per Share [Abstract]

Schedule of Basic And Diluted Earnings Per Share

The computation of basic and diluted earnings per share is shown below (in thousands, except per share amounts).

	Three Months Ended September 30,				Nine Months Ended September 30,
	2014		2013		2014		2013
Net income	$	25,970	$	21,259	$	65,941	$	64,610
Weighted average common shares outstanding	71,837		72,621		72,198		72,965
Dilutive effect of stock-based awards	527		595		508		565
Shares used in computing diluted earnings per share	72,364		73,216		72,706		73,530
Basic earnings per share	$	0.36	$	0.29	$	0.91	$	0.89
Diluted earnings per share	$	0.36	$	0.29	$	0.91	$	0.88