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v3.19.3.a.u2

Basis of Presentation - Additional Information (Detail) - USD ($) $ in Millions | 1 Months Ended | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Dec. 31, 2019 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018
Basis Of Presentation [Line Items] |  |  |  |  |
Net gain (loss) on foreign currency transactions |  | $ (0.4) | $ (0.2) | $ 0.1 | $ (0.6)
Purchase price included in cash |  |  |  | 2.5 |
Assets acquired accrued Contingent Consideration | $ 1.3 | 1.3 |  | 1.3 |
Research and development expenses |  |  |  | 3.7 |
Liabilities recorded in acquisition | 1.5 | 1.5 |  | $ 1.5 |
Period for amount payable upon meeting milestones |  |  |  | December 2021 through December 2023 |
Long-term deferred tax asset | 0.3 | 0.3 |  | $ 0.3 |
Assets held for sale | 37.1 | 37.1 |  | 37.1 |
Current assets held for sale | 21.0 | 21.0 |  | 21.0 |
Non-current assets held for sale | 16.1 | 16.1 |  | 16.1 |
Asset Purchase Agreement [Member] |  |  |  |  |
Basis Of Presentation [Line Items] |  |  |  |  |
Cash consideration receivable on divestiture of business | $ 120.0 |  |  |  |
Percentage of purchase price of inventory | 5.00% |  |  |  |
Business divestiture closing | fourth quarter of fiscal 2020 |  |  |  |
Contingent Consideration Milestones Payable Dates from December 2021 through December 2023 [Member] |  |  |  |  |
Basis Of Presentation [Line Items] |  |  |  |  |
Purchase price in contingent consideration | $ 6.5 | $ 6.5 |  | $ 6.5 |

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