Income Taxes - Reconciliation Between Statutory Federal Income Tax and Company's Effective Tax Rates as Percentage of Income (Loss) Before Income Taxes (Detail)	12 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Federal tax rate	21.00%	21.00%	27.60%
States taxes, net of federal benefit	(11.40%)	(69.30%)	(1.40%)
Foreign rate differential	2.10%	0.30%	0.30%
Stock-based compensation expense	(8.70%)	(48.90%)	(20.80%)
Change in valuation allowance	(2.40%)	(397.80%)	(151.30%)
Research and development credits	(4.10%)	(8.50%)	(4.80%)
Federal tax rate change impact	0.00%	0.00%	146.30%
Disqualified compensation expense	5.30%	16.50%	5.70%
Uncertain tax position	1.80%	2.80%	1.40%
Business divestitures	(1.30%)	0.00%	0.00%
Other	0.80%	1.00%	0.50%
Effective income tax rate	3.10%	(482.90%)	3.50%

Effective income tax rate reconciliation disqualified compensation expense.

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Effective income tax rate reconciliation uncertain tax positions.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to disposition of a business not qualifying as a discontinued operation.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile.

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Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to nondeductible expense for share-based payment arrangement.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits.

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