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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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