Components and Activity in Accumulated Other Comprehensive Income Net of Deferred Income Taxes (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended			6 Months Ended
	Jun. 30, 2013		Jun. 30, 2012	Jun. 30, 2013		Jun. 30, 2012
Schedule of Accumulated Other Comprehensive Income (Loss) [Line Items]
Foreign Currency Translations, Beginning balance	$ 50,904			$ 85,117
Foreign Currency Translations, Other comprehensive (loss) income before reclassifications	5,241			(28,668)
Foreign Currency Translation, Other comprehensive (loss) income, net of tax	5,241		(55,882)	(28,668)		(26,870)
Other comprehensive (income) loss attributable to noncontrolling interests	233			(71)
Foreign Currency Translations, Ending balance	56,378			56,378
Pension and Post-retirement Benefits, Beginning balance	915	[1]		989	[1]
Pension and Post-retirement Benefits, Amounts reclassified from accumulated other comprehensive income	(330)	[1]	(154)	(404)	[1]	(334)
Pension and Post-retirement Benefits, Other comprehensive (loss) income, net of tax	(330)	[1]	(154)	(404)	[1]	(334)
Pension and Post-retirement Benefits, Ending balance	585	[1]		585	[1]
Other, Beginning balance	(810)			(842)
Other, Other comprehensive (loss) income before reclassifications	(3)			(5)
Other, Amounts reclassified from accumulated other comprehensive income	32			66
Other, Other comprehensive (loss) income, net of tax	29		31	61		66
Other, Ending balance	(781)			(781)
Beginning Balance	51,009			85,264		60,329
Other comprehensive income (loss) before reclassifications	5,238			(28,673)
Amounts reclassified from accumulated other comprehensive income	(298)			(338)
Total other comprehensive (loss) income, net of tax	4,940		(56,005)	(29,011)		(27,138)
Other comprehensive (income) loss attributable to noncontrolling interests	233			(71)
Ending balance	$ 56,182		$ 33,036	$ 56,182		$ 33,036

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