Debt - Schedule of Components of Total Debt (Detail) - USD ($) $ in Thousands	Mar. 28, 2020	Dec. 28, 2019
Debt Instrument [Line Items]
Total debt	$ 5,915,000	$ 4,736,000
Current portion of long-term debt	(146,000)	(142,000)
Long-term debt	$ 5,769,000	4,594,000
ABL Facility | Revolving credit facility
Debt Instrument [Line Items]
Interest rate (percent)	2.02%
Total debt	$ 700,000	0
ABS Facility | Revolving credit facility
Debt Instrument [Line Items]
Interest rate (percent)	1.94%
Total debt	$ 640,000	190,000
Term Loan Facility A | Senior secured term loan facility
Debt Instrument [Line Items]
Interest rate (percent)	3.35%
Total debt	$ 2,120,000	2,125,000
Unamortized deferred financing costs	$ 3,000	4,000
Term Loan Facility B | Senior secured term loan facility
Debt Instrument [Line Items]
Interest rate (percent)	3.60%
Total debt	$ 1,462,000	1,465,000
Unamortized deferred financing costs	$ 34,000	35,000
Senior Notes due 2024 | Senior notes
Debt Instrument [Line Items]
Interest rate (percent)	5.875%
Total debt	$ 596,000	596,000
Unamortized deferred financing costs	4,000	4,000
Obligations under financing leases | Lease agreements
Debt Instrument [Line Items]
Total debt	389,000	352,000
Other debt | Other debt obligations
Debt Instrument [Line Items]
Total debt	$ 8,000	$ 8,000
Minimum | Obligations under financing leases | Lease agreements
Debt Instrument [Line Items]
Interest rate (percent)	1.63%
Minimum | Other debt
Debt Instrument [Line Items]
Interest rate (percent)	5.75%
Maximum | Obligations under financing leases | Lease agreements
Debt Instrument [Line Items]
Interest rate (percent)	6.17%
Maximum | Other debt
Debt Instrument [Line Items]
Interest rate (percent)	9.00%