CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Income Statement [Abstract]
Net sales	$ 389.0	$ 455.6
Cost of sales	343.0	387.0
Gross profit	46.0	68.6
Selling, general and administrative expenses	44.6	43.4
Restructuring charges	0.0	0.4
Operating income	1.4	24.8
Interest expense	(7.3)	(6.6)
Other income (expense), net	0.6	(2.1)
(Loss) income before income taxes	(5.3)	16.1
Income tax expense	0.9	7.2
Net (loss) income	$ (6.2)	$ 8.9
(LOSS) EARNINGS PER COMMON SHARE:
Basic (in dollars per share)	$ (0.13)	$ 0.18
Diluted (in dollars per share)	$ (0.13)	$ 0.18
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
Basic (in shares)	46.9	49.7
Diluted (in shares)	46.9	49.9
Cash dividends per common share (in dollars per share)	$ 0.18	$ 0.18