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Related Party Transactions (Details 1) (USD $)
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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| Summary of Related party long term debt | ||||||
| Total carrying value of debt | $ 10,959,000 | $ 208,906,000 | ||||
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7% Exchangeable Senior Subordinated Notes due 2014 [Member]
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| Summary of Related party long term debt | ||||||
| Interest rate on instrument | 7.00% | 7.00% | 7.00% | |||
| Total principal debt | 502,370,000 | [1] | ||||
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Liberty Media [Member]
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| Summary of Related party long term debt | ||||||
| Total principal debt | 11,000,000 | 211,000,000 | ||||
| Less: discounts | 41,000 | 2,094,000 | ||||
| Total carrying value of debt | 10,959,000 | 208,906,000 | ||||
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Liberty Media [Member] | 7% Exchangeable Senior Subordinated Notes due 2014 [Member]
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| Summary of Related party long term debt | ||||||
| Interest rate on instrument | 7.00% | 7.00% | ||||
| Total principal debt | 11,000,000 | 11,000,000 | ||||
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Liberty Media [Member] | 8.75% Senior Notes due 2015 [Member]
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| Summary of Related party long term debt | ||||||
| Interest rate on instrument | 8.75% | 8.75% | ||||
| Total principal debt | 0 | 150,000,000 | ||||
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Liberty Media [Member] | 7.625% Senior Notes due 2018 [Member]
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| Summary of Related party long term debt | ||||||
| Interest rate on instrument | 7.625% | 7.625% | ||||
| Total principal debt | $ 0 | $ 50,000,000 | ||||
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