Fair Value of Derivative Instruments Included in Other Current Assets in Consolidated Balance Sheets (Detail) (Foreign Currency Forward Contracts, USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Derivatives, Fair Value [Line Items]
Derivative instruments, assets derivatives	$ 644us-gaap_DerivativeAssetsCurrent	$ 118us-gaap_DerivativeAssetsCurrent
Derivative instruments, liabilities derivatives	0us-gaap_DerivativeLiabilitiesCurrent	0us-gaap_DerivativeLiabilitiesCurrent
Derivatives Designated as Hedging Instruments
Derivatives, Fair Value [Line Items]
Derivative instruments, assets derivatives	384
Derivative instruments, liabilities derivatives	0	0
Derivatives not Designated as Hedging Instruments
Derivatives, Fair Value [Line Items]
Derivative instruments, assets derivatives	260	118
Derivative instruments, liabilities derivatives	$ 0	$ 0

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References+ Details

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References+ Details