Segment Reporting - Adjusted EBITDA (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Aug. 27, 2022	May 28, 2022	Aug. 28, 2021	May 29, 2021	Aug. 27, 2022	Aug. 28, 2021
Segment Reporting
Net loss	$ (331,290)	$ (110,191)	$ (100,301)	$ (13,057)	$ (441,481)	$ (113,358)
Interest expense	52,533		48,592		100,652	97,713
Income tax expense	11,967		3,310		15,464	4,090
Depreciation and amortization	68,564		73,859		138,637	149,718
LIFO charge (credit)	10,121		(3,993)		10,121	(7,986)
Facility exit and impairment charges	45,845		11,353		112,416	20,184
Goodwill and intangible asset impairment charges	252,200				252,200
(Gain) loss on debt modifications and retirements, net	(41,312)		2,839		(41,312)	3,235
Merger and Acquisition-related costs			4,591			8,477
Stock-based compensation expense	4,735		5,792		8,069	8,603
Restructuring-related costs	12,805		9,584		35,451	15,516
Inventory write-downs related to store closings	1,094		798		9,049	1,270
Litigation and other contractual settlements	20,093		34,212		38,364	48,212
(Gain) loss on sale of assets, net	(29,001)		12,378		(58,197)	5,820
Other	195		3,146		(754)	3,543
Adjusted EBITDA	$ 78,549		$ 106,160		$ 178,679	$ 245,037