Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2018

Equity [Abstract]

Schedule of Stock Repurchases

The following table details our stock repurchases under the Repurchase Program: 

	Three Months Ended June 30,				Six Months Ended June 30,
	2018		2017		2018		2017
Shares of common stock repurchased and retired	—		1,887		337		2,767
Average price paid per share	$	—	$	34.74	$	42.17	$	37.03
Total cost	$	—	$	65,556	$	14,213	$	102,457