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Convertible Notes (Details) $ / shares in Units, $ in Millions | 1 Months Ended | 3 Months Ended
--- | --- | ---
Feb. 29, 2024 USD ($) tradingDay $ / shares | Sep. 30, 2024 USD ($)
Convertible Senior Notes Due 2029 | Convertible Notes Payable |  |
Debt Instrument [Line Items] |  |
Convertible notes | $ 1,725.0 |
Proceeds from convertible debt | 1,695.8 |
Purchase of capped calls | $ 142.1 |
Interest expense |  | $ 2.2
Conversion price ratio | 0.0007455 |
Convertible, approximate conversion rate (in dollars per share) | $ / shares | $ 134.14 |
Convertible conversion percentage | 130.00% |
Trading days | tradingDay | 20 |
Percentage of principal repaid upon request following fundamental change | 100.00% |
Unamortized issuance costs |  | 25.8
Carrying value |  | 1,699.2
Amortization of debt issuance costs |  | $ 1.5
Interest rate |  | 0.34%
Convertible Senior Notes Due 2029 | Convertible Notes Payable | Debt Covenant, Redemption Option One |  |
Debt Instrument [Line Items] |  |
Convertible conversion percentage | 130.00% |
Trading days | tradingDay | 20 |
Convertible, threshold consecutive trading days | tradingDay | 30 |
Convertible Senior Notes Due 2029 | Convertible Notes Payable | Debt Covenant, Redemption Option Two |  |
Debt Instrument [Line Items] |  |
Convertible conversion percentage | 98.00% |
Trading days | tradingDay | 5 |
Convertible, threshold consecutive trading days | tradingDay | 5 |
Capped Calls |  |
Debt Instrument [Line Items] |  |
Capped call initial strike price (in dollars per share) | $ / shares | $ 134.14 |
Capped call transactions, price per share (in dollars per share) | $ / shares | $ 195.10 |
Capped call transaction, notional amount | $ 142.1 |

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