TRADE RECEIVABLES - FACTORING (Details) € in Millions	12 Months Ended
	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Sep. 30, 2019 EUR (€)	Mar. 19, 2019 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables Purchase Agreement, aggregate facility limit					$ 150,000,000.0
Receivables Purchase Agreement, recourse obligation retained, percentage (up to)					10.00%
Receivables Purchase Agreement, facility limit | €				€ 93.0
Factored Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade receivables, utilized	$ 123,100,000	$ 118,300,000
Trade receivables, factored	839,800,000	547,900,000
Trade receivables, factoring fees	1,800,000	2,400,000	$ 600,000
Factored Receivable | Trade Receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade receivables, factored, amounts due from factors	$ 6,200,000	$ 8,600,000