Goodwill and Other Intangible Assets (Details) (USD $)								3 Months Ended		9 Months Ended
	Sep. 30, 2014	Jun. 30, 2014	Dec. 31, 2013		Sep. 30, 2014 HomeLink®	Dec. 31, 2013 HomeLink®	Sep. 27, 2013 HomeLink®	Sep. 30, 2014 Patents [Member] HomeLink®	Sep. 30, 2013 Patents [Member] HomeLink®	Sep. 30, 2014 Intangible Assets [Member] HomeLink®	Sep. 30, 2013 Intangible Assets [Member] HomeLink®
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Goodwill	$ 307,365,845	$ 307,365,845	$ 307,365,845	[1]		$ 307,400,000	$ 337,600,000
Goodwill that is expected to be deductible for tax purposes						307,400,000
Accumulated amortization					19,300,000
Amortization expense								5,500,000	800,000	16,500,000	2,700,000
Amortization expense, 2014	22,000,000
Amortization expense, 2015					22,000,000
Amortization expense, 2016					22,000,000
Amortization expense, 2017					22,000,000
Amortization expense, 2018					$ 22,000,000

[1] Note: The condensed consolidated balance sheet at December 31, 2013 has been derived from the audited financial statements at that date but does not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements.