Subsequent Events (Common Stock Dividend) (Details) - $ / shares			3 Months Ended		6 Months Ended
	Aug. 02, 2016	May 04, 2016	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Subsequent Event [Line Items]
Quarterly dividend of common stock declared (in dollar per share)		$ 0.1375	$ 0.14	$ 0	$ 0.28	$ 0
Annualized dividend rate (in dollars per share)		$ 0.55
Subsequent Event [Member]
Subsequent Event [Line Items]
Quarterly dividend of common stock declared (in dollar per share)	$ 0.1375
Annualized dividend rate (in dollars per share)	$ 0.55