Subsequent Event (Details) - USD ($) $ in Thousands		12 Months Ended
	Jan. 31, 2020	Dec. 28, 2019	Dec. 29, 2018
Subsequent Event [Line Items]
Maximum borrowing capacity		$ 2,500,000
Line of Credit Facility, Potential Additional Borrowing Capacity		3,000,000
Long-term line of credit		$ 1,869,402	$ 1,887,764
Credit facility, additional interest rate above LIBOR		1.625%
Line of Credit
Subsequent Event [Line Items]
Maximum borrowing capacity	$ 3,500,000
Line of Credit Facility, Potential Additional Borrowing Capacity	4,000,000
Long-term line of credit	750,000
Long-term Line of Credit, Revolving Credit Facility	$ 2,750,000
Credit facility, additional interest rate above LIBOR	1.625%
Term loan facility amortization rate	2.50%