Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Jan. 29, 2022	Jan. 30, 2021	Feb. 01, 2020
Contract With Customer, Liability [Line Items]
Employee compensation	$ 141,863	$ 132,341
Outstanding checks and payables	133,966	119,761
Insurance reserves	48,379	46,042
Sales, property, use and other taxes	47,161	43,803
BJ’s Perks rewards	40,804	34,452
Fixed asset accruals	29,640	13,131
Utilities, advertising and accrued interest	21,699	22,809
Operating lease right-of-use assets	596,957	576,425
Membership fee income sales reserves and legal reserves	14,870	12,360
Gift cards	11,799	10,293
Accrued federal and state income taxes	10,875	788
Repairs and maintenance	10,174	11,347
Professional services	8,251	7,371
Other	26,131	23,429
Total	748,245	651,625
Deferred membership fee income
Contract With Customer, Liability [Line Items]
Deferred revenue	174,916	155,580	$ 143,969
Deferred revenues
Contract With Customer, Liability [Line Items]
Deferred revenue	$ 27,717	$ 18,118