Schedule of Debt and Capital Lease Obligations (Detail) In Thousands, unless otherwise specified	Jun. 30, 2012 USD ($)	Dec. 31, 2011 USD ($)	Jun. 30, 2012 Credit Line, Due 2013 USD ($)		Dec. 31, 2011 Credit Line, Due 2013 USD ($)		Jun. 30, 2012 Term Loan, Denominated In U.S. Dollars, Due 2013 USD ($)		Dec. 31, 2011 Term Loan, Denominated In U.S. Dollars, Due 2013 USD ($)		Jun. 30, 2012 Term Loan, Denominated In Euros ("EUR"), Due 2013 USD ($)		Dec. 31, 2011 Term Loan, Denominated In Euros ("EUR"), Due 2013 USD ($)		Jun. 30, 2012 Secured Mortgages USD ($)		Jun. 30, 2012 Secured Mortgages EUR (€)	Dec. 31, 2011 Secured Mortgages USD ($)		Jun. 30, 2012 Capitalized Leases And Other Long-Term Debt USD ($)	Dec. 31, 2011 Capitalized Leases And Other Long-Term Debt USD ($)
Debt Instrument [Line Items]
Short-term borrowings	$ 300	$ 2,392
Total long-term debt, including current maturities	499,314	401,433	204,000	[1]	72,000	[1]	240,769	[2]	260,000	[2]	41,825	[3]	50,596	[3]	6,066	[4]	4,791	6,504	[4]	6,654	12,333
Current maturities of long-term debt	94,595	75,300
Total long-term debt, less current maturities	$ 404,719	$ 326,133

[1] The loans under this facility may be denominated in USD or several foreign currencies. The interest rates under the facility are based on prime, federal funds and/or the London Interbank offer rate ("LIBOR") for the applicable currency. At June 30, 2012, the applicable rate was 1.9%, and the weighted-average rate was 1.9% for the six-month period ended June 30, 2012.

[2] The interest rate for this loan varies with prime, federal funds and/or LIBOR. At June 30, 2012, the applicable rate was 1.9%, and the weighted-average rate was 1.9% for the six-month period ended June 30, 2012.

[3] The interest rate for this loan varies with LIBOR. At June 30, 2012, this rate was 2.4%, and the weighted-average rate was 2.3% for the six-month period ended June 30, 2012.

[4] This amount consists of two fixed-rate commercial loans with an outstanding balance of €4,791 at June 30, 2012. The loans are secured by the Company's facility in Bad Neustadt, Germany.