Investments and Other Assets - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Dec. 31, 2018
Schedule of Equity Method Investments [Line Items]
Equity method investments	$ 18,426	$ 22,960
CareerBuilder
Schedule of Equity Method Investments [Line Items]
Equity method investment retained after disposal, ownership interest (as a percent)	17.00%
Equity method investment retained after disposal, fully diluted ownership interest (as a percent)	10.00%
Equity method investments	$ 12,900	$ 12,400
Captivate
Schedule of Equity Method Investments [Line Items]
Proceeds from sale of equity method investment	16,200
Pre-tax gain on sale of equity method investment	12,200
After-tax gain on sale of equity method investment	$ 9,200

Discontinued Operation, Equity Method Investment Retained after Disposal, Ownership Interest after Disposal, Diluted

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- Definition

Equity Method Investment, Realized Gain (Loss) on Disposal, Pre Tax

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No definition available.

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Percent, after disposal, of ownership interest of a discontinued operation in which an equity method investment is retained.

+ References

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- Definition

Amount of gain (loss) on sale or disposal of an equity method investment.

+ References

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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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.

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