Assets and liabilities measured at fair value (Details) - USD ($) $ in Thousands	Apr. 29, 2022	Jan. 28, 2022
Liabilities:
Current portion of long-term obligations	$ 900,635
Long-term obligations	3,947,462	$ 4,172,068
Reported amount | Current portion of long-term debt obligations
Liabilities:
Current portion of long-term obligations	900,635
Reported amount | Long-term obligations
Liabilities:
Long-term obligations	3,947,462
Reported amount | Accrued expenses and other current liabilities
Liabilities:
Deferred compensation	2,267
Reported amount | Noncurrent Other liabilities
Liabilities:
Deferred compensation	42,820
Fair value measurements on recurring basis | Balance at the end of the period
Liabilities:
Long-term obligations	4,797,534
Deferred compensation	45,087
Fair value measurements on recurring basis | Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1)
Liabilities:
Long-term obligations	3,881,060
Deferred compensation	45,087
Fair value measurements on recurring basis | Significant Other Observable Inputs (Level 2)
Liabilities:
Long-term obligations	$ 916,474