Debt - Components of Debt (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Finance lease obligation	$ 22.1	$ 0.0
Unamortized debt discount	(6.8)	(7.6)
Debt issuance costs	(12.0)	(15.0)
Total debt, net	1,420.4	1,401.8
Less: current portion	49.8	27.5
Total long-term debt, net	1,370.6	1,374.3
Equipment Financing due May 2024 \| Secured Debt
Debt Instrument [Line Items]
Long-Term Debt, Gross	4.4	9.5
Equipment Financing due November 2025 \| Secured Debt
Debt Instrument [Line Items]
Long-Term Debt, Gross	$ 17.1	22.5
5.15% Mortgage due November 2025 \| Secured Debt
Debt Instrument [Line Items]
Debt, interest rate	5.15%
Long-Term Debt, Gross	$ 63.8	65.5
0.375% Convertible Senior Notes due September 2026 \| Convertible Debt
Debt Instrument [Line Items]
Debt, interest rate	0.375%
Long-Term Debt, Gross	$ 800.0	800.0
Equipment Financing \| Secured Debt
Debt Instrument [Line Items]
Long-Term Debt, Gross	12.7	0.0
Term loan due May 2028 \| Secured Debt
Debt Instrument [Line Items]
Long-Term Debt, Gross	488.7	492.5
Equipment Financing due July 2028 \| Secured Debt
Debt Instrument [Line Items]
Long-Term Debt, Gross	30.4	34.4
Revolving Credit Facility expires June 2028
Debt Instrument [Line Items]
Long-Term Debt, Gross	$ 0.0	$ 0.0

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount, after accumulated amortization, of debt discount.

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

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Present value of lessee's discounted obligation for lease payments from finance lease, classified as current.

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Amount of long-term debt and lease obligation, classified as noncurrent.

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Amount of long-term debt and lease obligation, classified as current.

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Amount of long-term debt and lease obligation, including portion classified as current.

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