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Related Parties - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2019	Sep. 28, 2018	Sep. 27, 2019	Sep. 28, 2018
Related Party Transactions [Abstract]
Ownership interest in facilities owned by entities controlled by company's stockholders			100.00%
Expenses related to transactions with related parties	$ 108	$ 134	$ 325	$ 400

X

- Definition

Refers to ownership percentage interest in facilities owned by entities controlled by company's stockholders

+ References

No definition available.

+ Details

Name:	chef_OwnershipInterestInFacilitiesOwnedByEntitiesControlledByCompanysStockholders
Namespace Prefix:	chef_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

+ Details

Name:	us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_RelatedPartyTransactionsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration