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Acquisitions - Additional Information (Detail) - USD ($) $ in Millions | 12 Months Ended
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Jun. 30, 2021 | Jun. 30, 2020
Business Acquisition [Line Items] |  |
Effective income tax rate reconciliation at federal statutory income tax rate, Percent | 25.00% |
Fair Value Adjustment to Inventory [Member] |  |
Business Acquisition [Line Items] |  |
Business combination, Pro forma adjustments | $ 5.2 | $ 5.2
Acquisition-related Costs [Member] |  |
Business Acquisition [Line Items] |  |
Business combination, Pro forma adjustments | 4.8 | 4.8
Reduction In Revenues Due To The Elimination Of Deferred Contract Revenue [Member] |  |
Business Acquisition [Line Items] |  |
Business combination, Pro forma adjustments | 14.8 | $ 14.8
Medical Segment | SunNuclear |  |
Business Acquisition [Line Items] |  |
Business acquisition, Transaction costs | $ 1.2 |

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