Goodwill and Other Intangible Assets - Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015
Goodwill [Line Items]
Goodwill, Written off Related to Sale of Business Unit	$ (18.7)
Goodwill [Roll Forward]
Beginning balance	925.8	$ 914.7
Foreign currency translation	(12.7)	(36.7)
Acquisitions	0.2	47.8
Ending balance	894.6	925.8
Mobile Consumer Electronics
Goodwill [Roll Forward]
Beginning balance	740.0	729.1
Foreign currency translation	(12.8)	(36.9)
Acquisitions	0.2	47.8
Ending balance	708.7	740.0
Specialty Components
Goodwill [Roll Forward]
Beginning balance	185.8	185.6
Foreign currency translation	0.1	0.2
Acquisitions	0.0	0.0
Ending balance	185.9	$ 185.8
Discontinued Operations, Held-for-sale [Member] \| Speaker and Receiver Product Line \| Mobile Consumer Electronics
Goodwill [Line Items]
Goodwill, Written off Related to Sale of Business Unit	(18.7)
Discontinued Operations, Held-for-sale [Member] \| Speaker and Receiver Product Line \| Specialty Components
Goodwill [Line Items]
Goodwill, Written off Related to Sale of Business Unit	$ 0.0

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=64834752&loc=SL49117168-202975

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