Investments Ownership Percentages (Details)	Dec. 31, 2018
Dose Media, LLC
Schedule of Equity Method Investments [Line Items]
Ownership in equity method investment, percent	23.00%
Television Food Network, G.P.
Schedule of Equity Method Investments [Line Items]
Ownership in equity method investment, percent	31.00%
TKG Internet Holdings II LLC
Schedule of Equity Method Investments [Line Items]
Ownership in equity method investment, percent	43.00%