Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events - Additional Information (Details)

v3.3.0.814
Subsequent Events - Additional Information (Details) - USD ($)
shares in Thousands, $ in Thousands
 1 Months Ended 9 Months Ended
Oct. 20, 2015
Sep. 30, 2015
Sep. 30, 2014
Subsequent Event [Line Items]      
Common stock repurchased (in shares)   432,616 570,056
Common stock repurchased, value   $ 1,646,798 $ 2,006,013
Common Stock [Member]      
Subsequent Event [Line Items]      
Common stock repurchased (in shares)   0  
Common stock repurchased, value   $ 0  
Common Stock [Member] | Open Market And Privately Negotiated Repurchases [Member]      
Subsequent Event [Line Items]      
Common stock repurchased (in shares) [1]   432,616 273,436
Common stock repurchased, value [1]   $ 1,646,798 $ 909,609
Subsequent Event [Member] | Common Stock [Member] | Open Market And Privately Negotiated Repurchases [Member]      
Subsequent Event [Line Items]      
Common stock repurchased (in shares) 22,500    
Common stock repurchased, value $ 87,645    
[1] As of September 30, 2015, $25,104 of common stock repurchases had not settled, nor been retired, and were recorded as Treasury stock within our unaudited consolidated balance sheets and unaudited consolidated statements of stockholders’ equity.