Subsequent Events (Details) (Common Stock [Member], USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended	1 Months Ended	0 Months Ended
	Sep. 30, 2014 August ASR Agreement [Member]	Oct. 24, 2014 Subsequent Event [Member] Open Market And Privately Negotiated Repurchases [Member]	Oct. 01, 2014 Subsequent Event [Member] August ASR Agreement [Member]
Subsequent Event [Line Items]
Number of shares repurchased and retired	51,884,795	24,555,150	19,431,708
Stock repurchased and retired during period, value		$ 81,007