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Goodwill and Identified Intangible Assets - Identified Intangible Assets (Parenthetical) (Details) - TiVo Merger $ in Millions	6 Months Ended
	Jun. 30, 2020 USD ($)
TiVo Tradename/trademarks
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets acquired	$ 21.4
Patents
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	457.4
Developed technology
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	34.8
Content database
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	6.2
Customer contracts and related relationships
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	$ 358.2

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

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