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GOODWILL AND INTANGIBLE ASSETS - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 25, 2022	Dec. 25, 2021
Other intangible assets
Gross	$ 1,700,805	$ 1,672,415
Accumulated Amortization	(668,433)	(611,223)
Net	1,032,372	1,061,192
Backlog
Other intangible assets
Gross	15,295	12,577
Accumulated Amortization	(11,862)	(9,517)
Net	3,433	3,060
Technology
Other intangible assets
Gross	130,236	135,764
Accumulated Amortization	(98,132)	(95,454)
Net	32,104	40,310
Trademarks and trade names
Other intangible assets
Gross	12,680	13,086
Accumulated Amortization	(3,982)	(3,448)
Net	8,698	9,638
Other
Other intangible assets
Gross	38,153	35,231
Accumulated Amortization	(15,222)	(8,445)
Net	22,931	26,786
Other intangible assets
Other intangible assets
Gross	196,364	196,658
Accumulated Amortization	(129,198)	(116,864)
Net	67,166	79,794
Client relationships
Other intangible assets
Gross	1,504,441	1,475,757
Accumulated Amortization	(539,235)	(494,359)
Net	$ 965,206	$ 981,398

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