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Income Taxes - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2021 | Jun. 30, 2021 | Jun. 30, 2020 | Oct. 19, 2021 | Jun. 30, 2019
Income Tax Examination [Line Items] |  |  |  |  |
Valuation allowance | $ 20.7 | $ 29.1 | $ 29.0 | $ 30.7 | $ 18.7
Increase (decrease) in valuation allowance | 1.6 | 0.1 | 10.3 |  |
Valuation allowance deferred tax asset, decreases related to expected realization of tax |  | (10.0) |  |  |
Net operating loss, purchase accounting adjustment | 3.8 |  |  |  |
Unrecognized tax benefits | 6.6 | 5.0 | 0.8 | $ 6.5 | $ 13.9
Unrecognized tax benefits that would impact effective tax rate | 4.2 | 3.4 |  |  |
Unrecognized tax benefits, deferred tax liabilities | 3.5 | 2.9 | 0.0 |  |
Interest and penalties | 0.9 | 0.6 | 0.3 |  |
Minimum |  |  |  |  |
Income Tax Examination [Line Items] |  |  |  |  |
Unrecognized tax benefits | 0.0 |  |  |  |
Maximum |  |  |  |  |
Income Tax Examination [Line Items] |  |  |  |  |
Unrecognized tax benefits | $ 2.8 |  |  |  |
2023 |  |  |  |  |
Income Tax Examination [Line Items] |  |  |  |  |
Tax credit carryforward expiration end year | 2023 |  |  |  |
2037 |  |  |  |  |
Income Tax Examination [Line Items] |  |  |  |  |
Tax credit carryforward expiration end year | 2037 |  |  |  |
Noncurrent income tax payable |  |  |  |  |
Income Tax Examination [Line Items] |  |  |  |  |
Unrecognized tax benefits | $ 3.1 | $ 2.1 | $ 0.8 |  |
United States—Federal |  |  |  |  |
Income Tax Examination [Line Items] |  |  |  |  |
Operating loss carryforwards | 39.7 |  |  |  |
Tax credit carryforwards | $ 14.0 |  |  |  |
United States—Federal | 2035 |  |  |  |  |
Income Tax Examination [Line Items] |  |  |  |  |
Research and development tax credit carryforward expiration start year | 2035 |  |  |  |
United States—Federal | 2036 |  |  |  |  |
Income Tax Examination [Line Items] |  |  |  |  |
Research and development tax credit carryforward expiration start year | 2036 |  |  |  |
United States—State |  |  |  |  |
Income Tax Examination [Line Items] |  |  |  |  |
Operating loss carryforwards | $ 58.3 |  |  |  |
United States—State | 2022 |  |  |  |  |
Income Tax Examination [Line Items] |  |  |  |  |
Research and development tax credit carryforward expiration start year | 2022 |  |  |  |
United States—State | 2041 |  |  |  |  |
Income Tax Examination [Line Items] |  |  |  |  |
Research and development tax credit carryforward expiration end year | 2041 |  |  |  |
Foreign Jurisdiction |  |  |  |  |
Income Tax Examination [Line Items] |  |  |  |  |
Operating loss carryforwards | $ 51.3 |  |  |  |
US controlled foreign corporations |  |  |  |  |
Income Tax Examination [Line Items] |  |  |  |  |
Amount of unrecognized deferred tax liability related to foreign subsidiaries | 28.7 |  |  |  |
Undistributed earnings of foreign subsidiaries | 220.0 |  |  |  |
Non-US controlled foreign corporations |  |  |  |  |
Income Tax Examination [Line Items] |  |  |  |  |
Undistributed earnings of foreign subsidiaries | $ 67.1 |  |  |  |

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