Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Schedule of Repurchase Agreements (Parenthetical) (Details)

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Stockholders' Equity - Schedule of Repurchase Agreements (Parenthetical) (Details) - USD ($)
$ / shares in Units, shares in Thousands
 1 Months Ended 12 Months Ended
Aug. 31, 2014
May. 31, 2014
Apr. 30, 2014
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Oct. 09, 2013
Class Of Stock [Line Items]              
Treasury stock       $ 23,727,000 $ 26,034,000    
Loss on change in value of derivatives       $ 0 34,485,000 $ 20,393,000  
Liberty Media [Member]              
Class Of Stock [Line Items]              
Loss on change in value of derivatives         $ 34,485,000 $ 20,393,000  
Common Stock [Member]              
Class Of Stock [Line Items]              
Common stock shares retired       525,828 731,606 520,258  
Common Stock [Member] | October 2013 Share Repurchase Program [Member] | Liberty Media [Member]              
Class Of Stock [Line Items]              
Stock repurchase program, authorized amount             $ 500,000,000
Number of shares repurchased and retired     92,889     43,712  
Stock repurchased and retired during period, value     $ 340,000,000     $ 160,000,000  
Share price (in dollars per share)     $ 3.66        
Common Stock [Member] | May 2014 ASR Agreement [Member]              
Class Of Stock [Line Items]              
Stock repurchase program, authorized amount   $ 600,000,000          
Common stock shares retired   151,846          
Stock repurchase program, unused portion of authorized amount   $ 93,596,000          
Common Stock [Member] | August 2014 ASR Agreement [Member]              
Class Of Stock [Line Items]              
Stock repurchase program, authorized amount $ 250,000,000            
Number of shares repurchased and retired 71,316