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Long Term Debt - Additional Information (Detail) - USD ($) |  | 12 Months Ended |
--- | --- | --- | ---
Jul. 31, 2018 | Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2017 | [1] | Dec. 23, 2016
Debt Instrument [Line Items] |  |  |  |  |  |
Aggregate principal amount of loan |  | $ 235,000,000.0 | $ 10,000,000.0 |  |  |
Long term debt, net |  | 233,500,000 | 9,300,000 | [1] |  |
Principal repayment |  | 115,000,000.0 | 143,000,000.0 | [1] | $ 105,000,000.0 |
Revolving Credit Facility [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal repayment |  | $ 115,000,000.0 | $ 143,000,000.0 |  |  |
Revolving Credit Facility [Member] | Amendment to Credit Agreement [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Aggregate principal amount of loan | $ 300,000,000.0 |  |  |  |  |
Upfront fees | 1,800,000 |  |  |  |  |
Debt issuance costs | 300,000 |  |  |  |  |
Long term debt, net | 233,500,000 |  |  |  |  |
Scheduled principal payments prior to maturity date | $ 0 |  |  |  |  |
Revolving Credit Facility [Member] | Counsyl Inc [Member] | Amendment to Credit Agreement [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Loan agreement, maturity date | Jul. 31, 2023 |  |  |  |  |
Loans maximum borrowing capacity | $ 350,000,000.0 |  |  |  |  | $ 300,000,000.0
[1] | Amounts adjusted due to the adoption of Accounting Standards Update No. 2014-09, Revenue from Contracts with Customers (Topic 606). See Note 1 to the financial statements of this report for additional information.

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