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Goodwill and Other Intangible Assets (Schedule of Intangible Assets) (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |
Intangible assets, net | $ 308,275,000 | $ 327,575,000
HomeLink® |  |
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |
Finite-lived intangible assets, accumulated amortization | (62,725,000) | (43,425,000)
Intangible assets, gross | 371,000,000 | 371,000,000
Intangible assets, net | 308,275,000 | 327,575,000
HomeLink® | Homelink Technology |  |
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |
Finite-lived intangible assets, gross | 180,000,000 | 180,000,000
Finite-lived intangible assets, accumulated amortization | (48,750,000) | (33,750,000)
Finite-lived intangible assets, net | $ 131,250,000 | $ 146,250,000
Finite-lived intangible asset, useful life | 12 years | 12 years
HomeLink® | Existing Customer Platforms |  |
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |
Finite-lived intangible assets, gross | $ 43,000,000 | $ 43,000,000
Finite-lived intangible assets, accumulated amortization | (13,975,000) | (9,675,000)
Finite-lived intangible assets, net | $ 29,025,000 | $ 33,325,000
Finite-lived intangible asset, useful life | 10 years | 10 years
HomeLink® | HomeLink Trade Names and Trademarks |  |
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |
Indefinite-lived intangible assets | $ 52,000,000 | $ 52,000,000
HomeLink® | Exclusive Licensing Agreement |  |
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |
Indefinite-lived intangible assets | $ 96,000,000 | $ 96,000,000

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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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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=66006027&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=66006027&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=66006027&loc=d3e16323-109275 + Details
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