Subsequent Events (Details) (USD $)	0 Months Ended	12 Months Ended
	Feb. 02, 2012	Oct. 31, 2012 Subsequent Event [Member] Dividend Declared [Member]
Subsequent Event [Line Items]
Dividends Payable, Date Declared	Feb. 01, 2012	Dec. 07, 2012
Common Stock, Dividends, Per Share, Declared		$ 0.25
Dividends Payable, Date to be Paid		Dec. 28, 2012
Dividends Payable, Date of Record		Dec. 20, 2012