Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2019

Equity [Abstract]

Number and Cost of Common Stock Shares Repurchased

The number and the cost of common stock shares repurchased during the years ended December 31, 2019, 2018 and 2017, are reflected in the following table (in thousands):

	Years Ended December 31,
	2019		2018		2017
Common stock repurchased (in shares)	4,253		5,614		4,046
Common stock repurchased	$	250,154	$	351,194	$	196,645

Number and Cost of Employee Stock Plan Repurchases

The number and the cost of employee stock plan repurchases made during the years ended December 31, 2019, 2018 and 2017, are reflected in the following table (in thousands):

	Years Ended December 31,
	2019		2018		2017
Repurchases related to employee stock plans (in shares)	352		235		408
Repurchases related to employee stock plans	$	22,491	$	13,674	$	20,391