Derivative Financial Instruments - Summary of Derivative Financial Instruments (Detail) (FX Forward Contracts [Member], USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Derivatives Designated As Hedges [Member] | Accounts Receivable-Other [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives	$ 73	$ 1,139
Derivatives Designated As Hedges [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives	57	94
Derivatives Designated As Hedges [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives	203	603
Derivatives Designated As Hedges [Member] | Accounts Payable [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives	398	581
Derivatives Not Designated as Hedges [Member] | Accounts Receivable-Other [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives	614	464
Derivatives Not Designated as Hedges [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives	9	50
Derivatives Not Designated as Hedges [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives	5
Derivatives Not Designated as Hedges [Member] | Accounts Payable [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives	$ 26	$ 10