Schedule II - Valuation and Qualifying Accounts (Detail) - USD ($) $ in Thousands		12 Months Ended
		Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Allowance for doubtful accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at the beginning of the year		$ 10,298	$ 1,825	$ 1,950
Charged to expenses/against revenue	[1]	630		525
Write-offs net of recoveries		(751)		(650)
Balance at the end of the year		10,177	10,298	1,825
Allowance for doubtful accounts excluding sales returns [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at the beginning of the year	[2]	10,298	1,625
Charged to expenses/against revenue	[1],[2]		9,342
Write-offs net of recoveries	[2]		(669)
Balance at the end of the year	[2]		10,298	1,625
Deferred tax asset valuation allowance [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at the beginning of the year		8,346	57,197	81,964
Charged to expenses/against revenue	[1]	(784)	571	(24,767)
Write-offs net of recoveries		(39)	(49,422)	0
Balance at the end of the year		$ 7,523	$ 8,346	$ 57,197

[1] Additions to the allowance for doubtful accounts and the valuation allowance are charged to expense. Additions to the allowance for sales returns are charged against revenue.

[2] In fiscal year 2019, the Company adopted ASC 606 which requires allowance for sales returns to be classified as a liability. Accordingly, the balance as of July 1, 2018 excludes an allowance for sales returns of $0.2 million.