Net Profit per Share (Tables)

12 Months Ended

Dec. 31, 2015

Earnings Per Share [Abstract]

Schedule Of Earnings Per Share Basic And Diluted

The following table sets forth the computation of basic and diluted net income per share attributable to common stock (in thousands, except per share amounts):

	Year Ended December 31,
	2015		2014		2013
Numerator:
Net income	$	144,020	$	145,832	$	64,295
Denominator:
Weighted-average common shares outstanding, basic	79,998		80,754		80,551
Dilutive effect of potential common stock	1,523		1,529		2,038
Total shares, diluted	81,521		82,283		82,589
Net income per share, basic	$	1.80	$	1.81	$	0.80
Net income per share, diluted	$	1.77	$	1.77	$	0.78