Subsequent Events Subsequent Events (Details) (Subsequent Event [Member], USD $) In Millions, except Per Share data, unless otherwise specified	0 Months Ended		2 Months Ended
	Jul. 30, 2013	Jun. 11, 2013	Jul. 30, 2013
Subsequent Event [Member]
Subsequent Event [Line Items]
Quarterly cash dividend declared, common stock	$ 0.10	$ 0.07
Increase in quarterly cash dividend (percent)			43.00%
Cash dividend received from consolidated subsidiary	$ 10.0