Supplemental Balance Sheet Information- Allowance for Doubtful Accounts (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Trade receivables allowance for doubtful accounts
Beginning balance	$ 5.4	$ 5.7	$ 4.2
Provision for Doubtful Accounts	2.7	0.5	2.1
Allowance for Doubtful Accounts Receivable, Write-offs and Recoveries, net	(1.1)	(1.0)	$ (0.6)
Impact of foreign exchange	0.4	(0.2)
Closing balance	$ 6.6	$ 5.4	$ 5.7