Cash Flow Hedge Related to Variable Debt Instrument and Outstanding Foreign Currency Derivatives to Hedge Foreign Currency Balances Measured at Fair Value on Recurring Basis, and Balances (Detail) (Fair Value, Measurements, Recurring, Cash Flow Hedging, Level 2, USD $) In Thousands, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Fair Value, Measurements, Recurring | Cash Flow Hedging | Level 2
Liability:
Interest rate derivative financial instruments	$ 564	[1]	$ 1,201	[1]
Foreign currency derivative financial instrument			$ 160

[1] Includes accrued interest expense.