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Acquisitions, Dispositions, and Deconsolidations - Broadcasting Segment (Details) - USD ($) $ in Millions | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Dec. 31, 2018
Business Acquisition [Line Items] |  |  |
Asset acquisitions, cash consideration transferred | $ 19.2 | $ 20.2 |
Broadcasting |  |  |
Business Acquisition [Line Items] |  |  |
Asset acquisitions, cash consideration transferred | $ 13.0 |  | $ 71.4

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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585 + Details
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