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Impairments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Long Lived Assets Held-for-sale [Line Items]
Asset impairment charges	$ 0.5
Mobile Consumer Electronics
Long Lived Assets Held-for-sale [Line Items]
Other asset impairment charges	3.5
Specialty Components
Long Lived Assets Held-for-sale [Line Items]
Other asset impairment charges	2.1
Cost of Goods, Total [Member]
Long Lived Assets Held-for-sale [Line Items]
Other asset impairment charges		$ 3.3
Asset impairment charges	0.3
Selling and Administrative Expenses
Long Lived Assets Held-for-sale [Line Items]
Asset impairment charges	0.2
Impairment of Fixed and Other Assets
Long Lived Assets Held-for-sale [Line Items]
Asset impairment charges		5.6	$ 0.2
Impairment of Intangible Assets
Long Lived Assets Held-for-sale [Line Items]
Impairment of intangible assets, finite-lived	1.4
Selling and Marketing Expense [Member]
Long Lived Assets Held-for-sale [Line Items]
Other asset impairment charges	0.1
Research and Development Expense
Long Lived Assets Held-for-sale [Line Items]
Other asset impairment charges	$ 0.8
Discontinued Operations, Held-for-sale or Disposed of by Sale [Member] | Speaker and Receiver Product Line | Mobile Consumer Electronics
Long Lived Assets Held-for-sale [Line Items]
Other asset impairment charges		4.1	$ 1.2
Asset impairment charges		$ 191.5

X

- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=68055307&loc=d3e2420-110228

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-Name Accounting Standards Codification
-Topic 230
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-Section 45
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- Definition

The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

+ References

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

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-Name Accounting Standards Codification
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