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Business & Basis of Presentation (Details 1) (Common Stock [Member], Liberty Media [Member])
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Jun. 30, 2013
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Common Stock [Member] | Liberty Media [Member]
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| Related Party Transaction [Line Items] | |
| Related party ownership percentage (greater than 50%) | 50.00% |
| X | ||||||||||
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- Definition
Related Party Transaction, Related Party Ownership Percentage No definition available.
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| X | ||||||||||
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- Details
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