Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2017

Equity [Abstract]

Schedule of Stock Repurchases

The following table details our stock repurchases under the 2015 Stock Repurchase Program:

	Year Ended December 31,
	2016		2015
Shares of common stock repurchased and retired	85		765
Average price per share	$	34.16	$	34.68
Total cost	$	2,902	$	26,516

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

	Year Ended December 31,
	2017		2016
Shares of common stock repurchased and retired	4,674		452
Average price per share	$	35.94	$	41.06
Total cost	$	168,001	$	18,577