Accumulated Other Comprehensive Income - Components and Activity in Accumulated Other Comprehensive Income Net of Deferred Income Taxes (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended			9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012	Sep. 30, 2013		Sep. 30, 2012
Increase (Decrease) in Accumulated Other Comprehensive Income [Roll Forward]
Foreign Currency Translations, Beginning balance	$ 56,378			$ 85,117
Foreign Currency Translations, Other comprehensive (loss) income before reclassifications	40,613			11,945
Foreign Currency Translation, Other comprehensive (loss) income, net of tax	40,613		29,165	11,945		2,295
Foreign Currency Translation, Other comprehensive (income) loss attributable to noncontrolling interests	(337)			408
Foreign Currency Translations, Ending balance	96,654			96,654
Pension and Post-retirement Benefits, Beginning balance	585	[1]		989	[1]
Pension and Post-retirement Benefits, Amounts reclassified from accumulated other comprehensive income	(201)	[1]	(168)	(605)	[1]	(502)
Pension and Post-retirement Benefits, Other comprehensive (loss) income, net of tax	(201)	[1]	(168)	(605)	[1]	(502)
Pension and Post-retirement Benefits, Ending balance	384	[1]		384	[1]
Other, Beginning balance	(781)			(842)
Other, Other comprehensive (loss) income before reclassifications	4			(1)
Other, Amounts reclassified from accumulated other comprehensive income	34			100
Other, Other comprehensive (loss) income, net of tax	38		29	99		95
Other, Ending balance	(743)			(743)
Beginning Balance	56,182			85,264		60,329
Other comprehensive income (loss) before reclassifications	40,617			11,944
Amounts reclassified from accumulated other comprehensive income	(167)			(505)
Total other comprehensive income, net of tax	40,450		29,026	11,439		1,888
Other comprehensive (income) loss attributable to noncontrolling interests	(337)			(408)
Ending balance	$ 96,295		$ 62,062	$ 96,295		$ 62,062

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