Equity (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Share Repurchases [Abstract]
Number of Shares Authorized to be Repurchased	3,300		3,300
Treasury Stock, Shares, Acquired	0	0		900
Dividends, Common Stock, Cash	$ 1,700	$ 1,700	$ 3,300	$ 3,300