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           Earnings per Share (Details Textual) 
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        3 Months Ended | 9 Months Ended | 0 Months Ended | 1 Months Ended | 0 Months Ended | |||
|---|---|---|---|---|---|---|---|---|
| 
           Sep. 30, 2014 
         | 
        
           Sep. 30, 2013 
         | 
        
           Sep. 30, 2014 
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           Sep. 30, 2013 
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           Sep. 30, 2014
 
          Common Stock [Member] 
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           Jan. 18, 2013
 
          Liberty Media [Member]
 
          Common Stock [Member] 
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           Jan. 31, 2013
 
          Liberty Media [Member]
 
          Common Stock [Member] 
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           Jan. 18, 2013
 
          Liberty Media [Member]
 
          Series B Preferred Stock [Member] 
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      |
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||||||||
| Conversion of preferred stock to common stock (in shares) | 3,259 | 1,293,509,076 | 1,293,509,076 | 6,250,100 | ||||
| Anti-dilutive common stock equivalents (in shares) | 143,697,000 | 323,615,000 | 123,234,000 | 354,938,000 | ||||
| X | ||||||||||
| 
             
- Definition 
          Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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| X | ||||||||||
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- Details 
          
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| X | ||||||||||
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- Definition 
          Number of shares issued during the period as a result of the conversion of convertible securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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