Long-term Debt - Schedule of Convertible Notes (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Net carrying amount	$ 2,806.2
2.75% Convertible Notes due 2026 \| Convertible Notes
Debt Instrument [Line Items]
Principal	330.5	$ 330.5
Unamortized debt issuance costs	(4.9)	(6.2)
Net carrying amount	$ 325.6	$ 324.3

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

+ References + Details