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Goodwill and Intagible Assets Intangible Asset Remaining Useful Life (Details) | 9 Months Ended
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Sep. 30, 2018
Finite-Lived Intangible Assets [Member] |
Finite-Lived Intangible Assets [Line Items] |
Finite-Lived Intangible Assets, Remaining Amortization Period | 3 years 7 months 18 days
Customer Relationships [Member] |
Finite-Lived Intangible Assets [Line Items] |
Finite-Lived Intangible Assets, Remaining Amortization Period | 4 years 1 month 1 day
Distribution rights |
Finite-Lived Intangible Assets [Line Items] |
Finite-Lived Intangible Assets, Remaining Amortization Period | 9 years 6 months 28 days
Trade Secrets [Member] |
Finite-Lived Intangible Assets [Line Items] |
Finite-Lived Intangible Assets, Remaining Amortization Period | 9 months 28 days
Intellectual Property [Member] |
Finite-Lived Intangible Assets [Line Items] |
Finite-Lived Intangible Asset, Useful Life | 7 years
Off-Market Favorable Lease [Member] |
Finite-Lived Intangible Assets [Line Items] |
Finite-Lived Intangible Assets, Remaining Amortization Period | 9 months 28 days
Q1 2017 Acquisition [Member] | Customer Relationships [Member] |
Finite-Lived Intangible Assets [Line Items] |
Finite-Lived Intangible Asset, Useful Life | 10 years
Headland Media Limited [Member] | Customer Relationships [Member] |
Finite-Lived Intangible Assets [Line Items] |
Finite-Lived Intangible Asset, Useful Life | 10 years
Headland Media Limited [Member] | Distribution rights |
Finite-Lived Intangible Assets [Line Items] |
Finite-Lived Intangible Asset, Useful Life | 15 years

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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 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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- Details
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- Details
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- Details
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- Details
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