Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2015

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,
	2015		2014		2015		2014
Net income	$	32,076	$	25,970	$	87,066	$	65,941
Weighted average common shares outstanding	71,890		71,837		71,967		72,198
Dilutive effect of stock-based awards	588		527		579		508
Shares used in computing diluted earnings per share	72,478		72,364		72,546		72,706
Basic earnings per share	$	0.45	$	0.36	$	1.21	$	0.91
Diluted earnings per share	$	0.44	$	0.36	$	1.20	$	0.91