Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2019	Jun. 30, 2018
Tax Credit Carryforward [Line Items]
Reductions as a result of a lapse of the applicable statute of limitations	$ 0	$ 81
Settlements of previously recognized positions	0	0
Excess Tax Benefit from Share-based Compensation, Operating Activities	2,672	$ 7,897
Domestic Tax Authority \| Research and development credit carryforwards
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	$ 345
Domestic Tax Authority \| Research and development credit carryforwards \| Maximum
Tax Credit Carryforward [Line Items]
Tax carryforward expiration year	2029
State and Local Jurisdiction \| Research and development credit carryforwards
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	$ 15,165

Tax Credit Carryforward, Expiration Year

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Amount of cash outflow for realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 20
-Section 55
-Paragraph 24
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The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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