GOODWILL AND INTANGIBLE ASSETS - Schedule of Goodwill by Segment (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 26, 2021	Dec. 27, 2020
Goodwill [Roll Forward]
Goodwill, beginning of period	$ 1,005,245	$ 973,750
Additions	350,364	2,197
Currency Translation	(18,357)	29,298
Goodwill, end of period	1,337,252	1,005,245
U.S.
Goodwill [Roll Forward]
Goodwill, beginning of period	41,936	41,936
Additions	0	0
Currency Translation	0	0
Goodwill, end of period	41,936	41,936
U.K. and Europe
Goodwill [Roll Forward]
Goodwill, beginning of period	835,505	806,207
Additions	350,364	0
Currency Translation	(18,357)	29,298
Goodwill, end of period	1,167,512	835,505
Mexico
Goodwill [Roll Forward]
Goodwill, beginning of period	127,804	125,607
Additions	0	2,197
Currency Translation	0	0
Goodwill, end of period	$ 127,804	$ 127,804

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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