CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income	$ 20,747	$ 22,472	$ 7,701
Other comprehensive income (loss):
Foreign currency translation adjustments	831	(2,698)	3,922
Comprehensive income	21,578	19,774	11,623
Comprehensive (income) loss attributable to noncontrolling interest		20	(77)
Comprehensive income attributable to CRA International, Inc.	$ 21,578	$ 19,794	$ 11,546