Multiemployer Plans that Provide Pension Benefits (Details) $ in Thousands											12 Months Ended
	Feb. 06, 2022 $ / h	Feb. 01, 2022 $ / h	Oct. 01, 2021 $ / h	Feb. 07, 2021 $ / h	Jan. 01, 2021 $ / h	Oct. 01, 2020 $ / h	Feb. 02, 2020 $ / h	Jan. 01, 2020 $ / h	Sep. 30, 2018	Sep. 01, 2014 $ / h	Mar. 04, 2023 USD ($)	Feb. 26, 2022 USD ($)	Feb. 27, 2021 USD ($)	Dec. 31, 2020 $ / h
Multiemployer Plans that Provide Pension Benefits
Contributions by employer | $											$ 21,663	$ 24,514	$ 22,952
Minimum
Multiemployer Plans that Provide Pension Benefits
Funded percentage, green zone											80.00%
Maximum
Multiemployer Plans that Provide Pension Benefits
Funded percentage, red zone											65.00%
Funded percentage, yellow zone											80.00%
1199 SEIU Health Care Employees Pension Fund
Multiemployer Plans that Provide Pension Benefits
Contributions by employer | $											$ 7,493	9,242	9,613
Minimum funding requirements (as a percent)			11.30%						12.60%
Southern California United Food and Commercial Workers Unions and Drug Employers Pension Fund
Multiemployer Plans that Provide Pension Benefits
Contributions by employer | $											8,131	8,989	8,239
Minimum funding requirements for pharmacists (in dollars per hour) | $ / h					1.844									1.758
Minimum funding requirements for clerks (in dollars per hour) | $ / h					0.836									0.797
UFCW Pharmacists, Clerks and Drug Employers Pension Trust
Multiemployer Plans that Provide Pension Benefits
Contributions by employer | $											2,605	3,224	2,319
Minimum funding requirements for pharmacists (in dollars per hour) | $ / h								1.239
Minimum funding requirements for clerks (in dollars per hour) | $ / h								0.855
Minimum funding requirements for associates (in dollars per hour) | $ / h										0.55
United Food and Commercial Workers Union-Employer Pension Fund
Multiemployer Plans that Provide Pension Benefits
Contributions by employer | $											954	802	809
Minimum funding requirements for associates (in dollars per hour) | $ / h	2.57			2.43			2.30
United Food and Commercial Workers Union Local 880 - Mercantile Employers Joint Pension Fund
Multiemployer Plans that Provide Pension Benefits
Contributions by employer | $											434	370	399
Minimum funding requirements for associates (in dollars per hour) | $ / h		2.33	2.24			2.15
Other Funds
Multiemployer Plans that Provide Pension Benefits
Contributions by employer | $											$ 2,046	$ 1,887	$ 1,573