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Related-Party Transactions	12 Months Ended
	Dec. 30, 2017
Related-Party Transactions
Related-Party Transactions	14.   Related-Party Transactions         CRA made payments to shareholders of CRA who performed consulting services exclusively for CRA in the amounts of $13.2 million, $9.4 million, and $11.6 million in fiscal 2017, fiscal 2016, and fiscal 2015, respectively. These payments were to exclusive non-employee experts for consulting services performed for CRA's clients in the ordinary course of business.

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- Definition

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-URI http://asc.fasb.org/topic&trid=2122745

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