BUSINESS DESCRIPTION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Self-Insurance Accruals and Distribution Costs (Narrative) (Details)	12 Months Ended
	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($) distributionCenter
Self-Insurance Accruals
Decrease in self-insurance expense	$ 900,000	$ 1,400,000	$ 500,000
Self-insurance accruals, current	1,700,000	3,600,000
Self-insurance accruals, noncurrent	4,700,000	7,300,000
Distribution Costs
Number of distribution centers | distributionCenter			2
Distribution
Distribution Costs
Costs of goods sold	$ 0	$ 0	$ 2,300,000