Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Income Tax Contingency [Line Items]
Cash paid for income taxes	$ 23,600,000	$ 18,500,000	$ 13,000,000
Effective income tax rate, reductions	0.31%	0.37%	0.22%
Cumulative foreign undistributed net earnings	$ 715,000,000
Additional deferred tax liability due to undistributed foreign earnings	108,000,000
Interest and penalties recognized within income tax expense (benefit)	500,000	$ 0	$ 100,000
Interest and penalties accrued	300,000	100,000	$ 100,000
Unrecognized tax benefits that would impact effective tax rate	1,300,000	$ 500,000
Unrecognized tax benefits expected decrease during the next 12 months	$ 400,000
Internal Revenue Service | Earliest Tax Year
Income Tax Contingency [Line Items]
Tax year remain open to examination	2014
Internal Revenue Service | Latest Tax Year
Income Tax Contingency [Line Items]
Tax year remain open to examination	2017
State Jurisdictions | Earliest Tax Year
Income Tax Contingency [Line Items]
Tax year remain open to examination	2012
State Jurisdictions | Latest Tax Year
Income Tax Contingency [Line Items]
Tax year remain open to examination	2017
Foreign Taxing Jurisdictions | Earliest Tax Year
Income Tax Contingency [Line Items]
Tax year remain open to examination	2007
Foreign Taxing Jurisdictions | Latest Tax Year
Income Tax Contingency [Line Items]
Tax year remain open to examination	2017
Subsidiary in Germany
Income Tax Contingency [Line Items]
Income tax examination, year(s) under examination	2018