Bankruptcy Accounting - Narrative (Details) - USD ($) $ in Thousands		3 Months Ended		12 Months Ended
	Sep. 29, 2021	Jun. 30, 2021	Jun. 30, 2020	Jul. 02, 2022	Jun. 30, 2021	Jun. 30, 2020
Bankruptcy Accounting [Line Items]
Proceeds from issuance of term loan under sale and leaseback after payment of property taxes				$ 67,500
Proceeds from issuance of term loan under sale and leaseback				18,800
Restricted cash deposits				14,200
Net cash remaining deposited in unrestricted cash account		$ 1,900
Additional contribution to unsecured creditor claim fund				40,000
Bankruptcy claims, amount of claim fund to be distributed		$ 22,300		0	$ 22,300
Restructuring, impairment and abandonment charges				2,462	10,834	$ 113,492
Maximum amounts reserved and retained in unsecured creditor claim fund	$ 14,000
Impairment of intangible assets					1,639
Professional and legal fees				400
Claims related costs				594	1,302
Impairment costs			$ 80,100	1,963	1,639	80,076
Abandonment costs					5,638	25,082
Professional fees						5,212
Compensation costs related to reorganization reduction in force				499	3,557	3,122
Reorganization items, net				961	(60,015)	3,619
Professional and legal fees				367	34,579	$ 3,619
Charges related to rights offering and backstop agreement					19,990
Gain on lease liabilities of estimated claims				66,000	66,247
Gain on sale-leaseback					49,639
Software
Bankruptcy Accounting [Line Items]
Restructuring, impairment and abandonment charges				2,000
Severance and Employee Retention Costs
Bankruptcy Accounting [Line Items]
Restructuring, impairment and abandonment charges				$ 500	3,600
Permanent Closure Stores and Phoenix Distribution Center
Bankruptcy Accounting [Line Items]
Restructuring, impairment and abandonment charges					$ 5,600