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v3.23.3

Convertible Senior Notes - Additional Information (Detail) $ in Millions |  | 9 Months Ended |  |
--- | --- | --- | --- | ---
Jul. 19, 2019 USD ($) | Sep. 30, 2023 USD ($) Days | Dec. 31, 2022 USD ($) | Jul. 31, 2019 USD ($)
Debt Instrument [Line Items] |  |  |  |
Debt Instrument, Convertible, Threshold Trading Days | Days |  | 20 |  |
Debt Instrument, Convertible, Threshold Consecutive Trading Days | Days |  | 30 |  |
0.375% Convertible Senior Notes due 2024 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Notes issued | $ 287.5 |  |  | $ 287.5
Notes, interest rate | 0.375% |  |  |
Proceeds from issuance of convertible senior notes, net of costs | $ 278.5 |  |  |
Interest repayment terms |  | Interest is payable semi-annually in arrears on January 15 and July 15 of each year, beginning on January 15, 2020. |  |
Notes, due date |  | Jul. 15, 2024 |  |
Notes, carrying value |  | $ 286.0 | $ 284.6 |
Fair value of the note |  | 405.3 | $ 452.0 |
Additional Notes issued | $ 37.5 |  |  |
Debt instrument amount convertible into equity |  | $ 0.1 |  |
Notes threshold percentage of stock price trigger |  | 130.00% |  |

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