Subsequent Events Subsequent Events (Details) (Dividends Declared [Member], USD $)	0 Months Ended
	Jan. 29, 2013
Dividends Declared [Member]
Subsequent Event [Line Items]
Dividends Payable, Date Declared	Jan. 29, 2013
Common Stock, Dividends, Per Share, Declared	$ 0.40
Dividends Payable, Date to be Paid	Mar. 28, 2013
Dividends Payable, Date of Record	Mar. 14, 2013