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GOODWILL AND INTANGIBLE ASSETS - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 30, 2024	Dec. 30, 2023
Other intangible assets
Gross	$ 1,713,953	$ 1,729,559
Accumulated Amortization	(886,315)	(865,508)
Net	827,638	864,051
Client relationships
Other intangible assets
Gross	1,515,021	1,528,780
Accumulated Amortization	(739,260)	(721,322)
Net	775,761	807,458
Technology
Other intangible assets
Gross	140,982	142,190
Accumulated Amortization	(112,842)	(111,764)
Net	28,140	30,426
Trademarks and trade names
Other intangible assets
Gross	11,842	11,878
Accumulated Amortization	(4,822)	(4,568)
Net	7,020	7,310
Backlog
Other intangible assets
Gross	3,100	3,100
Accumulated Amortization	(2,485)	(2,177)
Net	615	923
Other
Other intangible assets
Gross	43,008	43,611
Accumulated Amortization	(26,906)	(25,677)
Net	$ 16,102	$ 17,934

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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-Topic 210
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-Name Accounting Standards Codification
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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