CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 6.2	$ (29.4)	$ (0.6)	$ (44.1)
Other comprehensive income (loss), net of tax
Pension and postretirement benefits, net of tax of $(0.4), $(0.4), $(0.8) and $(0.8), respectively	1.1	0.8	2.1	1.9
Net gain on derivative instruments, net of tax of $(2.1), $(0.5), $(0.4) and $(0.9), respectively	6.5	1.7	1.2	2.8
Foreign currency translation	6.9	(0.7)	3.6	(2.8)
Other comprehensive income, net of tax	14.5	1.8	6.9	1.9
Comprehensive income (loss), net of tax	$ 20.7	$ (27.6)	$ 6.3	$ (42.2)