Subsequent Events (Details) (Subsequent Event, USD $)	0 Months Ended
	Aug. 20, 2014	Aug. 20, 2014
Subsequent Event [Line Items]
Stock repurchase program authorized	$ 150,000,000	$ 150,000,000
Cash Dividend Declared
Subsequent Event [Line Items]
Dividends Payable, Date Declared	Aug. 20, 2014
Dividends Payable, Amount Per Share		$ 0.310
Dividends Payable, Date to be Paid	Sep. 22, 2014
Dividends Payable, Date of Record	Sep. 08, 2014