EARNINGS PER SHARE AND STOCKHOLDERS' EQUITY (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Earnings Per Share [Abstract]
Antidilutive securities excluded from computation of earnings per share, amount (in shares)		700,000	200,000	600,000
Basic weighted average common shares (in shares)	139,525,000	152,281,000	142,724,000	155,249,000
Nonvested units granted (in shares)			1,700,000	1,100,000
Stock-based compensation	$ 7.8	$ 8.9	$ 25.3	$ 26.8
Unrecognized compensation costs, nonvested shares and units	$ 49.5		$ 49.5