Derivative Financial Instruments - Additional Information (Detail)		1 Months Ended	6 Months Ended
	Mar. 25, 2013 EUR (€)	Mar. 31, 2008	Jun. 30, 2015 USD ($)	Jun. 30, 2015 EUR (€)	Jun. 30, 2014 USD ($)	Jun. 30, 2015 EUR (€)
Derivative [Line Items]
Maximum length of time to hedge exposure to foreign currency exchange risk			1 year	1 year
Interest Rate Swap
Derivative [Line Items]
Hedge Ineffectiveness Incurred | $			$ 0		$ 0
Automotive Segments
Derivative [Line Items]
Variable Rate			six month EURIBOR	six month EURIBOR
Fixed interest rate			0.05%			0.05%
Basis spread on variable rate			1.40%			1.40%
Exchange rate			1.05			1.05
Derivative exchange rate			1.46			1.46
Automotive Segments | Interest Rate Swap
Derivative [Line Items]
Derivative maturity period		10 years
Notional Value			$ 11,141,000			€ 10,000,000
Unicredit Bank
Derivative [Line Items]
Legal settlement for CRS	€ 144,000
Costs of all future obligations under CRS			13,962,000	€ 12,532,000
Past due payments under CRS			$ 10,099,000	€ 9,065,000