Acquisition - Selected Unaudited Pro-forma Combined Statement of Earnings (Details) - Audience, Inc. - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Business Acquisition, Pro Forma Information [Abstract]
Revenues	$ 294.6	$ 323.5	$ 804.1	$ 951.4
Net loss	$ (9.0)	$ (33.4)	$ (104.3)	$ (128.5)
Basic loss per share (USD per share)	$ (0.10)	$ (0.38)	$ (1.19)	$ (1.46)
Diluted loss per share (USD per share)	$ (0.10)	$ (0.38)	$ (1.19)	$ (1.46)

The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(2)-(3)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

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The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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