Schedule II - Valuation and Qualifying Accounts (Detail) - Deferred Tax Valuation Allowance [Member] - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Valuation and Qualifying Accounts Disclosure [Line Items]
Beginning of Period	$ 49,778	$ 42,214
Additions, Charge (Benefit) to Expenses	14,254	7,564
End of Period	$ 64,032	$ 49,778