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Earnings per Share (Details Textual)
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3 Months Ended | 6 Months Ended | 1 Months Ended | ||||||
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Jun. 30, 2013
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Jun. 30, 2012
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Jun. 30, 2013
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Jun. 30, 2012
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Jun. 30, 2013
Series B Preferred Stock [Member]
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Jan. 31, 2013
Liberty Media [Member]
Series B Preferred Stock [Member]
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Sep. 30, 2012
Liberty Media [Member]
Series B Preferred Stock [Member]
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Jan. 31, 2013
Liberty Media [Member]
Common Stock [Member]
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Sep. 30, 2012
Liberty Media [Member]
Common 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) | 6,250,100 | 6,250,100 | 6,249,900 | 1,293,509,076 | 1,293,467,684 | ||||
| Anti-dilutive common stock equivalents (in shares) | 355,918,000 | 427,160,000 | 352,795,000 | 428,045,000 | |||||
| X | ||||||||||
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- 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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