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GOODWILL AND INTANGIBLE ASSETS - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands | Sep. 24, 2022 | Dec. 25, 2021
--- | --- | ---
Other intangible assets |  |
Gross | $ 1,644,075 | $ 1,672,415
Accumulated Amortization | (676,056) | (611,223)
Net | 968,020 | 1,061,192
Backlog |  |
Other intangible assets |  |
Gross | 14,810 | 12,577
Accumulated Amortization | (11,800) | (9,517)
Net | 3,010 | 3,060
Technology |  |
Other intangible assets |  |
Gross | 123,169 | 135,764
Accumulated Amortization | (95,545) | (95,454)
Net | 27,624 | 40,310
Trademarks and trade names |  |
Other intangible assets |  |
Gross | 12,164 | 13,086
Accumulated Amortization | (3,981) | (3,448)
Net | 8,184 | 9,638
Other |  |
Other intangible assets |  |
Gross | 37,900 | 35,231
Accumulated Amortization | (18,597) | (8,445)
Net | 19,303 | 26,786
Other intangible assets |  |
Other intangible assets |  |
Gross | 188,043 | 196,658
Accumulated Amortization | (129,923) | (116,864)
Net | 58,121 | 79,794
Client relationships |  |
Other intangible assets |  |
Gross | 1,456,032 | 1,475,757
Accumulated Amortization | (546,133) | (494,359)
Net | $ 909,899 | $ 981,398

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