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Debt (Tables) | 6 Months Ended
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Jan. 02, 2021
Debt Disclosure [Abstract] |
Schedule of Carrying Amounts of the Liability and Equity Components of Convertible Debt | The following table presents the carrying amounts of the liability and equity components of our debt (in millions):
| January 2, 2021 |  | June 27, 2020
Principal amount of 1.00% Senior Convertible Notes | $ | 460.0 |  |  | $ | 460.0 |
Principal amount of 1.75% Senior Convertible Notes | 225.0 |  |  | 225.0 |
Unamortized discount of liability component | (68.2) |  |  | (79.1) |
Unamortized debt issuance cost | (4.4) |  |  | (5.0) |
Carrying amount of liability component | $ | 612.4 |  |  | $ | 600.9 |
Carrying amount of equity component (1) | $ | 136.8 |  |  | $ | 136.8 |
(1)Included in additional paid-in-capital on the Consolidated Balance Sheets.
Summary of Effective Interest Rate and the Interest Expense for the Contractual Interest and the Accretion of Debt Discount | The following table presents the interest expense for contractual interest, amortization of debt issuance costs and accretion of debt discount (in millions):
| Three Months Ended |  | Six Months Ended
| January 2, 2021 |  | December 28, 2019 |  | January 2, 2021 |  | December 28, 2019
Interest expense-contractual interest | $ | 2.4 |  |  | $ | 2.2 |  |  | $ | 4.7 |  |  | $ | 4.3 |
Amortization of debt issuance cost | 0.5 |  |  | 0.4 |  |  | 1.0 |  |  | 0.7 |
Accretion of debt discount | 5.5 |  |  | 5.2 |  |  | 10.8 |  |  | 10.3 |

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- Definition Tabular disclosure of the details of the interest expense, discount accretion and effective interest rate related to convertible notes of the entity. + References No definition available. + Details
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- Definition Tabular disclosure of the debt and equity components of convertible debt instruments. + References No definition available. + Details
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