Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2017

Equity [Abstract]

Number and Cost of Common Stock Shares Repurchased

The number and the cost of common stock shares repurchased during the nine months ended September 30, 2017 and 2016, are reflected in the following table (in thousands):

	Nine Months Ended   September 30,
	2017		2016
Common stock repurchased (in shares)	2,957		2,933
Common stock repurchased	$	137,596	$	112,896

Number and Cost of Employee Stock Plan Repurchases

The number and the cost of repurchases related to employee stock plans made during the nine months ended September 30, 2017 and 2016, are reflected in the following table (in thousands):

	Nine Months Ended   September 30,
	2017		2016
Repurchases related to employee stock plans (in shares)	311		268
Repurchases related to employee stock plans	$	15,058	$	10,714