Accumulated Other Comprehensive Income (Loss) - Reclassifications Out of Accumulated Other Comprehensive Income (Loss) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Schedule Of Reclassification Of Accumulated Other Comprehensive Income Loss [Line Items]
BALANCE	$ (23,131)	$ (32,036)
Foreign currency translation adjustment, net of tax	(6,688)	7,728
Reclassification of cash flow hedge into earnings, net of tax	(1,076)
Unrealized gain on cash flow hedges, net of tax	2,100	437
BALANCE	(28,795)	(23,871)
Foreign Currency Translation [Member]
Schedule Of Reclassification Of Accumulated Other Comprehensive Income Loss [Line Items]
BALANCE	(21,345)	(27,300)
Foreign currency translation adjustment, net of tax	(6,688)	7,728
Reclassification of cash flow hedge into earnings, net of tax
Unrealized gain on cash flow hedges, net of tax
BALANCE	(28,033)	(19,572)
Cash Flow Hedges [Member]
Schedule Of Reclassification Of Accumulated Other Comprehensive Income Loss [Line Items]
BALANCE	(1,786)	(4,736)
Foreign currency translation adjustment, net of tax
Reclassification of cash flow hedge into earnings, net of tax	(1,076)
Unrealized gain on cash flow hedges, net of tax	2,100	437
BALANCE	$ (762)	$ (4,299)