Segment Reporting - Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 02, 2023	Aug. 27, 2022	Sep. 02, 2023	Aug. 27, 2022
Segment Reporting
Revenues	$ 5,646,081	$ 5,901,069	$ 11,299,243	$ 11,915,652
Gross Profit	1,095,596	1,154,495	2,274,122	2,351,224
Adjusted EBITDA	16,709	78,549	108,424	178,679
Depreciation and amortization	69,029	68,564	134,924	138,637
LIFO charge	7,500	10,121	15,000	10,121
Stock-based compensation expense	1,068	4,735	2,149	8,069
Additions to property and equipment and intangible assets	44,583	52,175	92,086	137,599
Retail Pharmacy Segment
Segment Reporting
Revenues	4,470,927	4,231,791	8,963,256	8,577,147
Operating Segments | Retail Pharmacy Segment
Segment Reporting
Revenues	4,470,927	4,231,791	8,963,256	8,577,147
Gross Profit	978,602	1,043,036	2,065,465	2,140,393
Adjusted EBITDA	(26,477)	31,484	43,572	105,166
Depreciation and amortization	56,985	56,679	112,454	112,787
LIFO charge	7,500	10,121	15,000	10,121
Stock-based compensation expense	773	4,496	1,496	7,598
Additions to property and equipment and intangible assets	37,894	46,343	78,333	124,894
Operating Segments | Pharmacy Services Segment
Segment Reporting
Revenues	1,209,858	1,727,241	2,406,012	3,453,098
Gross Profit	116,994	111,459	208,657	210,831
Adjusted EBITDA	43,186	47,065	64,852	73,513
Depreciation and amortization	12,044	11,885	22,470	25,850
Stock-based compensation expense	295	239	653	471
Additions to property and equipment and intangible assets	6,689	5,832	13,753	12,705
Intersegment elimination
Segment Reporting
Revenues	(34,704)	(57,963)	(70,025)	(114,593)
Gross Profit
Adjusted EBITDA
Depreciation and amortization
LIFO charge
Stock-based compensation expense
Additions to property and equipment and intangible assets