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Threshold period of specified consecutive trading days within which common stock price to conversion price of convertible debt instrument must exceed threshold percentage for specified number of trading days to trigger conversion feature.

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Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion.

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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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.

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Debt - Convertible Senior Notes (Details) $ / shares in Units, $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2023 USD ($) $ / shares	Sep. 30, 2022 USD ($)	Mar. 31, 2021 USD ($)	Sep. 30, 2023 USD ($) d $ / shares	Sep. 30, 2022 USD ($)
Debt Instrument [Line Items]
Proceeds from convertible debt			$ 1,400.0
Convertible Scenario One
Debt Instrument [Line Items]
Convertible debt, threshold trading days \| d				20
Convertible debt, threshold consecutive trading days \| d				30
Convertible debt, threshold percentage of stock price trigger				130.00%
Convertible Scenario Two
Debt Instrument [Line Items]
Convertible debt, threshold trading days \| d				5
Convertible debt, threshold consecutive trading days \| d				5
Convertible debt, threshold percentage of stock price trigger				98.00%
Redemption Scenario
Debt Instrument [Line Items]
Convertible debt, threshold trading days \| d				20
Convertible debt, threshold consecutive trading days \| d				30
Convertible debt, threshold percentage of stock price trigger				130.00%
Convertible Debt \| Redemption Scenario
Debt Instrument [Line Items]
Convertible debt, redemption percentage				100.00%
Convertible Debt \| Fundamental Change
Debt Instrument [Line Items]
Convertible debt, redemption percentage				100.00%
2026 Notes
Debt Instrument [Line Items]
Convertible debt, conversion rate				0.0261458
Convertible debt, conversion rate (in dollars per share) \| $ / shares	$ 38.25			$ 38.25
Interest expense	$ 0.6	$ 0.6		$ 1.7	$ 1.6
2026 Notes \| Maximum
Debt Instrument [Line Items]
Convertible debt, conversion rate				0.0431406
2026 Notes \| Convertible Debt
Debt Instrument [Line Items]
Proceeds from convertible debt			695.8
Debt issuance costs	$ 11.0			$ 11.0
Debt instrument, term				5 years
Effective interest rate	0.32%			0.32%
2028 Notes
Debt Instrument [Line Items]
Convertible debt, conversion rate				0.0282889
Convertible debt, conversion rate (in dollars per share) \| $ / shares	$ 35.35			$ 35.35
Interest expense	$ 0.4	$ 0.4		$ 1.2	$ 1.2
2028 Notes \| Maximum
Debt Instrument [Line Items]
Convertible debt, conversion rate				0.0431406
2028 Notes \| Convertible Debt
Debt Instrument [Line Items]
Proceeds from convertible debt			$ 693.3
Debt issuance costs	$ 11.0			$ 11.0
Debt instrument, term				7 years
Effective interest rate	0.22%			0.22%