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Revenues and Allowances - Reserves for Unbilled Receivables (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2023	Dec. 31, 2022
Roll forward of the variable consideration and allowances for unbilled services
Balance at beginning of year	$ 1,120	$ 1,364
Increases to reserves, net of recoveries	7,966	9,176
Amounts written off and foreign currency translation	(7,457)	(9,420)
Balance at end of year	$ 1,629	$ 1,120