Earnings Per Share (Tables)

6 Months Ended

Jun. 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 June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
Net income	$	31,848	$	25,632	$	54,990	$	39,971
Weighted average common shares outstanding	71,945		72,091		72,005		72,382
Dilutive effect of stock-based awards	479		506		477		500
Shares used in computing diluted earnings per share	72,424		72,597		72,482		72,882
Basic earnings per share	$	0.44	$	0.36	$	0.76	$	0.55
Diluted earnings per share	$	0.44	$	0.35	$	0.76	$	0.55