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Income Taxes - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Dec. 26, 2021 | Dec. 27, 2020 | Dec. 26, 2021 | Dec. 27, 2020 | Jun. 27, 2021
Operating Loss Carryforwards [Line Items] |  |  |  |  |
Income tax expense (benefit) | $ 8.0 | $ (0.2) | $ 8.3 | $ (1.0) |
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense [Abstract] |  |  |  |  |
Unrecognized tax benefits | 7.4 |  | 7.4 |  | $ 7.4
Estimated change in gross unrecognized tax benefits | 0.6 |  | 0.6 |  |
Foreign Tax Authority | Luxembourg Holding Company |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |
Income tax expense (benefit) | 7.3 |  |  |  |
Income tax expense generated from taxable income | $ 129.1 |  |  |  |
Valuation allowance increase (decrease) |  |  | $ (121.8) |  |

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