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Goodwill and Intangible Assets Narrative (Details) - USD ($) $ in Thousands | 1 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Jan. 31, 2017 | Sep. 30, 2019 | Dec. 31, 2018 | Jan. 01, 2017
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Finite-lived intangible assets acquired |  | $ 71 |  |
Intangible assets, gross (excluding goodwill) |  | $ 4,840 | $ 5,661 |
Intellectual property |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Intangible assets, useful lives |  | 7 years |  |
Subscriber relationships |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Weighted average remaining useful lives |  | 3 years 8 months 7 days |  |
Distribution rights |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Weighted average remaining useful lives |  | 8 years 6 months 31 days |  |
Finite-lived intangible assets |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Weighted average remaining useful lives |  | 4 years 8 months 30 days |  |
Headland Media Limited | Subscriber relationships |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Intangible assets, useful lives |  | 10 years |  |
Headland Media Limited | Distribution rights |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Intangible assets, useful lives |  | 15 years |  |
Q1 2017 Acquisition |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Contingent consideration, value, high |  |  |  | $ 114
Intangible assets, gross (excluding goodwill) |  | $ 249 |  |
Contingent consideration |  | $ 71 |  |
Q1 2017 Acquisition | Subscriber relationships |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Intangible assets, useful lives | 10 years |  |  |
Finite-lived intangible assets acquired | $ 100 |  |  |

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- Definition Useful life 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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- 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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