Revenues and Allowances - Bad Debt Expense and Reimbursable Expenses (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 30, 2023	Dec. 31, 2022	Jan. 01, 2022
Revenue from Contract with Customer [Abstract]
Bad debt expense (recovery)	$ 533	$ (345)	$ 27
Reimbursable expenses	$ 65,277	$ 63,318	$ 64,532

Amount of expense (reversal of expense) for expected credit loss on accounts receivable.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(5))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration