Derivative Instruments - Assets and liabilities presented on a net basis due to the right of setoff (Detail) (USD $) In Thousands, unless otherwise specified	Apr. 05, 2015	Dec. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Gross amounts of recognized assets	$ 335	$ 188
Gross amounts offset	(1)	(74)
Net amount of assets presented	334us-gaap_DerivativeAssets	114us-gaap_DerivativeAssets
Gross amounts of recognized liabilities	819	149
Gross amounts offset	(40)	(52)
Net amount of liabilities presented	$ 779us-gaap_DerivativeLiabilities	$ 97us-gaap_DerivativeLiabilities

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. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Fair value, before 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. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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- Definition

Fair value, before 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. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

+ References+ Details

- Definition

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. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

+ References+ Details