Equity Dividends Paid (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Stockholders' Equity Attributable to Parent [Abstract]
Dividends, Common Stock, Cash	$ 1.7	$ 1.7	$ 5.0	$ 5.2