Nature of Operations and Summary of Significant Accounting Policies - Schedule of Restructuring Impairment and Abandonment Charges (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Restructuring costs:
Professional fees	$ 5,212
Severance and compensation related costs	3,122
Total restructuring costs	8,334
Impairment costs:
Store long-lived assets	11,656
Distribution center long-lived assets	16,794
Operating lease right-of-use assets	51,626
Total impairment costs	80,076
Abandonment costs:
Accelerated recognition of operating lease right-of-use assets	25,082
Total abandonment costs	25,082
Total restructuring, impairment and abandonment costs	$ 113,492	$ 0	$ 0