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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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

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.

+ References

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

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Fair Value of Financial Instruments - Narrative (Details) - Convertible notes - USD ($) $ in Millions	Mar. 29, 2022	Mar. 21, 2022	Mar. 31, 2022	Dec. 31, 2021
2.50% Convertible notes due 2023
Debt Instrument [Line Items]
Principal amount			$ (106.5)	$ (120.5)
2.50% Convertible notes due 2023 \| Exchange Agreement
Debt Instrument [Line Items]
Notes exchanged		$ 14.0
2.50% Convertible notes due 2023 \| Significant Other Observable Inputs (Level 2)
Debt Instrument [Line Items]
Fair value			73.7	$ 89.4
New Notes
Debt Instrument [Line Items]
Principal amount			(12.3)
Fair value		$ 11.5
New Notes \| Exchange Agreement
Debt Instrument [Line Items]
Notes exchanged	$ 1.8
New Notes \| Significant Other Observable Inputs (Level 2)
Debt Instrument [Line Items]
Fair value			9.4
Notes and New Notes
Debt Instrument [Line Items]
Principal amount			$ (118.8)