Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2018

Equity [Abstract]

Number and Cost of Common Stock Shares Repurchased

The number and the cost of common stock shares repurchased during the three months ended March 31, 2018 and 2017, are reflected in the following table (in thousands):

	Three Months Ended   March 31,
	2018		2017
Common stock repurchased (in shares)	1,065		1,121
Common stock repurchased	$	60,033	$	53,586

Number and Cost of Employee Stock Plan Repurchases

The number and the cost of repurchases related to employee stock plans made during the three months ended March 31, 2018 and 2017, are reflected in the following table (in thousands):

	Three Months Ended   March 31,
	2018		2017
Repurchases related to employee stock plans (in shares)	147		304
Repurchases related to employee stock plans	$	8,456	$	14,711