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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 |

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- Definition 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. + References 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 + Details
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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- Definition Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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