Share Repurchases (Tables)

9 Months Ended

Sep. 30, 2014

Share Repurchases [Line Items]

Schedule of Share Repurchases

A summary of share repurchase activity is shown below.

	Three Months Ended September 30,				Nine Months Ended September 30,
	2015		2014		2015		2014
Shares of common stock repurchased	1,510,124		857,016		8,228,542		4,743,926
Spending on share repurchases (in thousands)	$	100,030	$	75,017	$	600,164	$	392,588
Average price paid per share	$	66.24	$	87.53	$	72.94	$	82.76