Stockholders' Equity Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2018

Stockholders' Equity Note [Abstract]

Schedule of Share Repurchases

Our repurchase activity is as follows:

	Three Months Ended   March 31,										Inception to date
	2018					2017
Program	Shares	Total $		$ per share		Shares	Total $		$ per share		Shares	Total $		$ per share
Open market	—	$	—	$	—	6,100	$	195,993	$	32.13	3,843,495	$	61,232,115	$	15.93
401(k)	118,203	4,378,925		37.05		176,429	6,107,515		34.62		6,668,226	86,447,730		12.96
Directors and employees	15,492	559,688		36.13		16,399	559,605		34.12		1,935,002	17,845,721		9.22
Total	133,695	$	4,938,613	$	36.94	198,928	$	6,863,113	$	34.50	12,446,723	$	165,525,566	$	13.30

Schedule of Dividends Payable

Our recent dividends are as follows:

Declaration Date	Record Date	Payment Date	Dividend per Share
May 16, 2017	June 9, 2017	July 7, 2017	$	0.13
November 7, 2017	November 30, 2017	December 21, 2017	$	0.13