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Goodwill and Intangibles, net - Indefinite-lived Intangible Assets (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Acquired Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	$ 135.1	$ 123.1
FCC licenses
Acquired Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	132.6	120.6
State licenses
Acquired Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	$ 2.5	$ 2.5

X

- 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

Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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