Equity (Common Stock Dividends) (Narrative) (Details) - USD ($)		3 Months Ended		6 Months Ended
	Aug. 05, 2015	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Class of Stock [Line Items]
Annualized dividend rate (in dollars per share)					$ 1.00
Increase to annualized dividend rate					0.06
Common stock dividends				$ 0
Approved dividend rate (in dollars per share)		$ 0	$ 0.25	$ 0	$ 0.54
Subsequent Event [Member]
Class of Stock [Line Items]
Annualized dividend rate (in dollars per share)	$ 0.55
Approved dividend rate (in dollars per share)	$ 0.1375