Goodwill and Other Intangible Assets (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Sep. 27, 2013
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Goodwill	$ 307,365,845	$ 307,365,845
Percentage of fair value in excess of carrying amount for automotive reporting unit	248.00%
Amortization expense	22,000,000	7,900,000	1,700,000
Patents and Other Intangible Assets [Member]
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	10 years
Accumulated amortization	35,200,000	13,400,000
Amortization expense, 2015	22,000,000
Amortization expense, 2016	22,000,000
Amortization expense, 2017	22,000,000
Amortization expense, 2018	22,000,000
Amortization expense, 2019	22,000,000
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Schedule of Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Goodwill	307,365,845			337,600,000
Accumulated amortization	$ 24,125,000	$ 4,825,000