After Tax (Gain)/Loss Reclassified from Accumulated Other Comprehensive Income into Income (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Derivative Instruments Gain Loss [Line Items]
Derivatives qualifying as hedges, net of tax	$ 381	$ 6,876	$ 8,005
Interest Rate Swap
Derivative Instruments Gain Loss [Line Items]
Derivatives qualifying as hedges, net of tax		7,032	8,330
Foreign Currency Exchange Contracts
Derivative Instruments Gain Loss [Line Items]
Derivatives qualifying as hedges, net of tax	$ 381	$ (156)	$ (325)