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The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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The amount of the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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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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Threshold number of specified trading days that common stock price to conversion price of convertible debt instruments must exceed threshold percentage within a specified consecutive trading period to trigger conversion feature.

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Face (par) amount of debt instrument at time of issuance.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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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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Consideration given by issuer of convertible debt to provide an incentive for debt holders to convert the debt to equity securities. The expense is equal to the fair value of all securities and other consideration transferred in the transaction in excess of the fair value of securities issuable pursuant to the original conversion terms.

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Debt And Credit Facilities - Convertible Notes (Details) $ / shares in Units, shares in Millions, $ in Millions						12 Months Ended
	Aug. 10, 2023 USD ($) tradingDay shares	May 21, 2020 USD ($) $ / shares	May 21, 2020 USD ($) $ / shares	May 21, 2020 USD ($) tradingDay $ / shares	May 21, 2020 USD ($) d $ / shares	Dec. 31, 2023 USD ($) $ / shares	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Debt Instrument [Line Items]
Proceeds from issuance of convertible notes due 2028						$ 500.2	$ 0.0	$ 0.0
Inducement expense related to exchange of convertible notes						28.5	$ 0.0	$ 0.0
Partial exchange of convertible notes due 2025 and partial unwind of capped call transactions						24.2
Additional Paid-in Capital
Debt Instrument [Line Items]
Partial exchange of convertible notes due 2025 and partial unwind of capped call transactions	$ 24.1					$ 24.1
Convertible Debt
Debt Instrument [Line Items]
Converted debt, shares issued (in shares) \| shares	8.4
Convertible senior notes due 2028
Debt Instrument [Line Items]
Conversion price (in USD per share) \| $ / shares						$ 46.31
Convertible senior notes due 2028 \| Convertible Debt
Debt Instrument [Line Items]
Term loan	$ 65.2
Proceeds from issuance of convertible notes due 2028	$ 485.9
Interest rate	1.75%
Effective interest rate						2.40%
Redemption price	100.00%
Threshold percentage of stock price trigger	130.00%
Convertible debt, trading days (in trading days) \| tradingDay	20
Convertible debt, consecutive trading days (in trading days) \| tradingDay	30
1.750% Convertible Senior Notes Over Allotment Option \| Convertible Debt
Debt Instrument [Line Items]
Term loan	$ 500.2
2.375% convertible senior notes over allotment option \| Convertible Debt
Debt Instrument [Line Items]
Term loan		$ 67.5	$ 67.5	$ 67.5	$ 67.5
Convertible senior notes due 2025
Debt Instrument [Line Items]
Conversion price (in USD per share) \| $ / shares		$ 21.01	$ 21.01	$ 21.01	$ 21.01	$ 21.01
Convertible senior notes due 2025 \| Convertible Debt
Debt Instrument [Line Items]
Term loan		$ 517.5	$ 517.5	$ 517.5	$ 517.5
Proceeds from issuance of convertible notes due 2028		$ 502.6
Interest rate		2.375%	2.375%	2.375%	2.375%
Effective interest rate							3.00%
Redemption price			100.00%
Threshold percentage of stock price trigger			130.00%
Convertible debt, trading days (in trading days)				20	20
Convertible debt, consecutive trading days (in trading days)				30	30
Debt conversion, principal amount	401.2
Converted amount, cash	403.0
Inducement expense related to exchange of convertible notes	28.5
Debt discount	$ 4.4