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v3.23.3

Debt - Carrying Amounts of the Liability and Equity Components (Details) - USD ($) $ in Millions | Sep. 30, 2023 | Jul. 01, 2023 | Mar. 06, 2023 | Sep. 29, 2021 | Mar. 03, 2017
--- | --- | --- | --- | --- | ---
Carrying amounts of the liability and equity components: |  |  |  |  |
Short-term debt | $ 96.2 | $ 96.2 |  |  |
Unamortized notes debt issuance cost | (2.5) | (2.8) |  |  |
Long-term debt | $ 631.1 | 629.5 |  |  |
Convertible Notes | 1.00% Senior Convertible Notes |  |  |  |  |
Carrying amounts of the liability and equity components: |  |  |  |  |
Stated interest rate | 1.00% |  |  |  | 1.00%
Principal amount of notes | $ 96.4 | 96.4 |  |  |
Unamortized debt issuance costs | $ (0.2) | (0.2) |  |  |
Convertible Notes | 3.75% Senior Convertible Notes |  |  |  |  |
Carrying amounts of the liability and equity components: |  |  |  |  |
Stated interest rate | 3.75% |  |  |  |
Convertible Notes | 1.625% Senior Convertible Notes |  |  |  |  |
Carrying amounts of the liability and equity components: |  |  |  |  |
Stated interest rate | 1.625% |  | 1.625% |  |
Principal amount of notes | $ 250.0 | 250.0 |  |  |
Unamortized debt discount | (11.7) | (12.9) |  |  |
Unamortized notes debt issuance cost | $ (1.9) | (2.1) |  |  |
Senior Notes | 3.75% Senior Convertible Notes |  |  |  |  |
Carrying amounts of the liability and equity components: |  |  |  |  |
Stated interest rate | 3.75% |  |  | 3.75% |
Principal amount of notes | $ 400.0 | 400.0 |  |  |
Unamortized notes debt issuance cost | $ (5.3) | $ (5.5) |  |  |

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