Assets and liabilities measured at fair value (Details) - USD ($) $ in Thousands	Jul. 29, 2022	Jan. 28, 2022
Liabilities:
Current portion of long-term obligations	$ 900,635
Long-term obligations	4,290,700	$ 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	4,290,700
Reported amount | Accrued expenses and other current liabilities
Liabilities:
Deferred compensation	2,390
Reported amount | Noncurrent Other liabilities
Liabilities:
Deferred compensation	42,691
Fair value measurements on recurring basis | Balance at the end of the period
Liabilities:
Long-term obligations	5,162,921
Deferred compensation	45,081
Fair value measurements on recurring basis | Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1)
Liabilities:
Long-term obligations	3,912,130
Deferred compensation	45,081
Fair value measurements on recurring basis | Significant Other Observable Inputs (Level 2)
Liabilities:
Long-term obligations	$ 1,250,791