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Goodwill and Other Intangible Assets - Schedule of intangible assets (Details) (USD $)
9 Months Ended
Sep. 30, 2013
Dec. 31, 2012
Sep. 30, 2013
HomeLink® [Member]
Sep. 30, 2013
HomeLink® [Member]
HomeLink Technology [Member]
Sep. 30, 2013
HomeLink® [Member]
HomeLink Technology [Member]
Minimum [Member]
Sep. 30, 2013
HomeLink® [Member]
HomeLink Technology [Member]
Maximum [Member]
Sep. 30, 2013
HomeLink® [Member]
Existing Customer Platforms [Member]
Sep. 30, 2013
HomeLink® [Member]
HomeLink Trade Names and Trademarks [Member]
Sep. 30, 2013
HomeLink® [Member]
Exclusive Licensing Agreement [Member]
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]                  
Indefinite-lived intangible assets               $ 47,000,000 $ 87,000,000
Finite-lived intangible assets, gross       166,000,000     43,000,000    
Finite-lived intangible assets, accumulated amortization     0 0     0    
Finite-lived intangible assets, net       166,000,000     43,000,000    
Intangible assets, gross     343,000,000            
Intangible assets, net $ 370,268,798 $ 29,256,089 $ 343,000,000            
Finite-lived intangible asset, useful life         10 years 15 years 10 years