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Goodwill and Intangible Assets Intangible Asset Remaining Useful Life (Details) | 12 Months Ended
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Dec. 31, 2016
Weighted Average [Member] |
Finite-Lived Intangible Assets [Line Items] |
Finite-Lived Intangible Assets, Remaining Amortization Period | 5 years 2 months
Subscriber relationships |
Finite-Lived Intangible Assets [Line Items] |
Finite-Lived Intangible Assets, Remaining Amortization Period | 5 years 9 months 18 days
Distribution rights |
Finite-Lived Intangible Assets [Line Items] |
Finite-Lived Intangible Assets, Remaining Amortization Period | 11 years 3 months 18 days
Internally developed software |
Finite-Lived Intangible Assets [Line Items] |
Finite-Lived Intangible Assets, Remaining Amortization Period | 1 year 4 months 24 days
Proprietary content |
Finite-Lived Intangible Assets [Line Items] |
Finite-Lived Intangible Assets, Remaining Amortization Period | 2 years 6 months
Intellectual property |
Finite-Lived Intangible Assets [Line Items] |
Finite-Lived Intangible Assets, Remaining Amortization Period | 9 months 18 days
Off-Market Favorable Lease |
Finite-Lived Intangible Assets [Line Items] |
Finite-Lived Intangible Assets, Remaining Amortization Period | 2 years 6 months

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Remaining amortization period of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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