Components and Activity in Accumulated Other Comprehensive Income Net of Deferred Income Taxes (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012
Schedule of Accumulated Other Comprehensive Income (Loss) [Line Items]
Foreign Currency Translations, Beginning balance	$ 85,117
Foreign Currency Translations, Other comprehensive (loss) income before reclassifications	(33,909)
Foreign Currency Translation, Other comprehensive (loss) income, net of tax	(33,909)		29,012
Other comprehensive income attributable to noncontrolling interests	(304)
Foreign Currency Translations, Ending balance	50,904
Pension and Post-retirement Benefits, Beginning balance	989	[1]
Pension and Post-retirement Benefits, Amounts reclassified from accumulated other comprehensive income	(74)	[1]	(180)
Pension and Post-retirement Benefits, Other comprehensive (loss) income, net of tax	(74)	[1]	(180)
Pension and Post-retirement Benefits, Ending balance	915	[1]
Other, Beginning balance	(842)
Other, Other comprehensive (loss) income before reclassifications	(2)
Other, Amounts reclassified from accumulated other comprehensive income	34
Other, Other comprehensive (loss) income, net of tax	32		35
Other, Ending balance	(810)
Beginning Balance	85,264		60,329
Other comprehensive income (loss) before reclassifications	(33,911)
Amounts reclassified from accumulated other comprehensive income	(40)
Total other comprehensive (loss) income, net of tax	(33,951)		28,867
Other comprehensive income attributable to noncontrolling interests	(304)
Ending balance	$ 51,009		$ 89,051

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