Derivative Financial Instruments - Additional Information (Detail)	3 Months Ended				1 Months Ended			0 Months Ended	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2015 Interest Rate Swap USD ($)	Mar. 31, 2014 Interest Rate Swap USD ($)	Mar. 31, 2015 Automotive Segments	Mar. 31, 2008 Automotive Segments Interest Rate Swap	Mar. 31, 2015 Automotive Segments Interest Rate Swap USD ($)	Mar. 31, 2015 Automotive Segments Interest Rate Swap EUR (€)	Mar. 25, 2013 Unicredit Bank EUR (€)	Mar. 31, 2015 Unicredit Bank USD ($)	Mar. 31, 2015 Unicredit Bank EUR (€)
Derivative [Line Items]
Maximum length of time to hedge exposure to foreign currency exchange risk	1 year
Derivative maturity period					10 years
Notional Value						$ 10,740,000	€ 10,000,000
Variable Rate				six month EURIBOR
Fixed interest rate				0.09%
Basis spread on variable rate				1.40%
Exchange rate				1.05
Derivative exchange rate				1.46
Legal settlement for CRS								144,000
Costs of all future obligations under CRS									13,332,000	12,413,000
Past due payments under CRS									9,642,000	8,978,000
Hedge Ineffectiveness Incurred		$ 0	$ 0