Amount of Income Tax (Expense) Benefit Allocated to Component of Other Comprehensive Income (Loss) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012
Other Comprehensive Income (Loss) [Line Items]
Foreign Currency Translation, Other comprehensive (loss) income, before tax	$ (34,252)		$ 28,920
Foreign Currency Translation, Income tax (expense) benefit	343		92
Foreign Currency Translation, Other comprehensive (loss) income, net of tax	(33,909)		29,012
Pension and Post-retirement Benefits, Other comprehensive (loss) income, before tax	(74)		(286)
Pension and Post-retirement Benefits, Income tax (expense) benefit			106
Pension and Post-retirement Benefits, Other comprehensive (loss) income, net of tax	(74)	[1]	(180)
Other, Other comprehensive (loss) income, before tax	52		55
Other, Income tax (expense) benefit	(20)		(20)
Other, Other comprehensive (loss) income, net of tax	$ 32		$ 35

[1] Amounts reclassified from accumulated other comprehensive income consist of amortization of prior service benefit. See Note 10, "Pension Plans and Other Postretirement Benefits."