Equity (Details) - USD ($) shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2001
Share Repurchases [Abstract]
Number of Shares Authorized to be Repurchased	1,452		1,452		15,400
Treasury Stock, Shares, Acquired	1,773		1,773	0
Dividends, Common Stock, Cash	$ 1.8	$ 1.8	$ 5.3	$ 5.3