Segment Reporting - Adjusted EBITDA (Details) - USD ($) $ in Thousands	3 Months Ended
	May 30, 2020	Jun. 01, 2019
Segment Reporting
Net loss from continuing operations	$ (72,702)	$ (99,339)
Interest expense	50,547	58,270
Income tax (benefit) expense	(8,018)	7,374
Depreciation and amortization	79,103	83,926
LIFO (credit) charge	(12,066)	7,489
Lease termination and impairment charges	3,753	478
Intangible asset impairment charges	29,852
Merger and Acquisition-related costs		3,085
Stock-based compensation expense	1,874	5,380
Restructuring-related costs	35,735	43,350
Inventory write-downs related to store closings	834	841
Gain (loss) on sale of assets, net	(2,260)	(2,712)
Other	740	2,205
Adjusted EBITDA from continuing operations	$ 107,392	$ 110,347