Hedging Transactions and Derivative Financial Instruments - Summary of Reconciliation of Company's Derivatives by Contract Type (Detail) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 30, 2017
Derivative [Line Items]
Aggregate margin account balances included in cash and cash equivalents	$ 4.1	$ 5.3
Coffee Futures
Derivative [Line Items]
Assets	0.0	0.0
Liabilities	$ 2.8	$ 1.2

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.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 55
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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