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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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- Definition

The cash inflow from the issuance of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-14

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- Definition

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

+ References

No definition available.

+ Details

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- Details

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- Details

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