Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Income Tax Disclosure [Abstract]
Accumulated foreign earnings	$ 0
Change in valuation allowance for deferred tax assets	(200,000)	2,500,000
Accumulated deferred tax benefits associated with employee stock options	2,700,000
Unrecognized tax benefits	7,413,000	6,982,000	8,063,000
Unrecognized tax benefits that, if recognized, would reduce the effective tax rate	400,000
Accrued interest or penalties, unrecognized tax benefits	$ 0