Summary of Significant Accounting Policies - Concentration of Accounts Receivable (Details) - Accounts Receivable |
6 Months Ended | 12 Months Ended |
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Jun. 30, 2019 |
Dec. 31, 2018 |
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| Fox Networks Group | ||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Concentration of accounts receivable, net of specific allowances, percentage | 46.00% | 66.00% |
| American Made Media | ||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Concentration of accounts receivable, net of specific allowances, percentage | 15.00% | 0.00% |
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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. No definition available.
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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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