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Goodwill and Other Intangible Assets (Schedule of Intangible Assets) (Details) (USD $) |  |  |  | 3 Months Ended |
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Mar. 31, 2014 | Dec. 31, 2013 | Mar. 31, 2014 HomeLink® | Mar. 31, 2014 HomeLink® Homelink Technology | Mar. 31, 2014 HomeLink® Homelink Technology Minimum | Mar. 31, 2014 HomeLink® Existing Customer Platforms | Mar. 31, 2014 HomeLink® HomeLink Trade Names and Trademarks | Mar. 31, 2014 HomeLink® Exclusive Licensing Agreement
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |
Indefinite-lived intangible assets |  |  |  |  |  |  | $ 52,000,000 | $ 96,000,000
Finite-lived intangible assets, gross |  |  |  | 180,000,000 |  | 43,000,000 |  |
Finite-lived intangible assets, accumulated amortization |  |  | (9,650,000) | (7,500,000) |  | (2,150,000) |  |
Finite-lived intangible assets, net |  |  |  | 172,500,000 |  | 40,850,000 |  |
Intangible assets, gross |  |  | 371,000,000 |  |  |  |  |
Intangible assets, net | $ 361,350,000 | $ 366,175,000 | $ 361,350,000 |  |  |  |  |
Finite-lived intangible asset, useful life |  |  |  |  | 12 years 0 days | 10 years |  |

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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