Equity (Details) - USD ($) shares in Thousands, $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Share Repurchases [Abstract]
Number of Shares Authorized to be Repurchased	3,296
Treasury Stock, Shares, Acquired	0	922
Dividends, Common Stock, Cash	$ 1.7	$ 1.7