SEGMENT REPORTING - Schedule of Segment Reporting, Goodwill and Assets (Details) - USD ($) $ in Thousands	Jun. 28, 2020	Dec. 29, 2019
Segment Reporting Information [Line Items]
Assets	$ 7,156,581	$ 7,102,364
Long-lived assets	2,831,083	2,893,574
Eliminations
Segment Reporting Information [Line Items]
Assets	(1,969,531)	(1,949,631)
Long-lived assets	(4,032)	(4,256)
U.S. | Operating Segments
Segment Reporting Information [Line Items]
Assets	5,437,311	5,207,282
Long-lived assets	1,785,150	1,789,530
U.K. and Europe | Operating Segments
Segment Reporting Information [Line Items]
Assets	2,681,166	2,824,382
Long-lived assets	750,977	801,887
Mexico | Operating Segments
Segment Reporting Information [Line Items]
Assets	1,007,635	1,020,331
Long-lived assets	$ 298,988	$ 306,413