REPORTABLE SEGMENTS - Schedule of Segment Reporting, Goodwill and Assets (Details) - USD ($) $ in Thousands	Sep. 27, 2020	Dec. 29, 2019
Segment Reporting Information [Line Items]
Assets	$ 7,469,499	$ 7,102,364
Long-lived assets	2,870,638	2,893,574
Eliminations
Segment Reporting Information [Line Items]
Assets	(1,960,269)	(1,949,631)
Long-lived assets	(3,797)	(4,256)
U.S. | Operating Segments
Segment Reporting Information [Line Items]
Assets	5,570,836	5,207,282
Long-lived assets	1,799,455	1,789,530
U.K. and Europe | Operating Segments
Segment Reporting Information [Line Items]
Assets	2,824,974	2,824,382
Long-lived assets	782,952	801,887
Mexico | Operating Segments
Segment Reporting Information [Line Items]
Assets	1,033,958	1,020,331
Long-lived assets	$ 292,028	$ 306,413