Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Commitments and Contingencies Disclosure [Abstract]
Operating Leases, Rent Expense	$ 9.5	$ 10.0	$ 9.5
Inventory Write-down due to temporary operation suspension	1.0
Remediation expense due to temporary operation suspension	$ 6.0

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

No definition available.

Name:	us-gaap_LeaseAndRentalExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration