Debt instrument additional interest rate stated percentage.

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- Definition

Debt Instrument convertible derivative component fair value.

+ References

No definition available.

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- Definition

Debt Instrument convertible equity component fair value.

+ References

No definition available.

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- Definition

Debt instrument convertible fair value of derivative component.

+ References

No definition available.

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- Definition

Debt instrument convertible fair value of equity component.

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- Definition

Debt instrument maturity month year.

+ References

No definition available.

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- Definition

Debt issuance costs allocation to derivative component.

+ References

No definition available.

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- Definition

Debt issuance costs allocation to equity component .

+ References

No definition available.

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- Definition

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

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- Definition

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

+ References

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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

No definition available.

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- Definition

Percentage of principal amount of debt redeemed.

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No definition available.

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- Definition

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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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

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Borrowing Arrangements - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2020	Dec. 31, 2018	Dec. 31, 2021
2022 Notes [Member]
Debt Instrument [Line Items]
Debt instrument face amount			$ 25.5
Debt instrument maturity month year			2022-03
Debt instrument interest rate stated percentage			1.50%
Debt instrument additional interest rate stated percentage			8.00%
Gain (loss) on Extinguishment of Debt	$ 0.3
Debt issuance costs gross			$ 0.9
2023 Initial Notes [Member]
Debt Instrument [Line Items]
Debt instrument face amount		$ 16.1
2023 Extension Notes [Member]
Debt Instrument [Line Items]
Debt instrument face amount				$ 48.7
2023 Notes [Member]
Debt Instrument [Line Items]
Debt instrument maturity month year		2023-03
Debt instrument interest rate stated percentage		10.00%
Debt issuance costs gross				0.4
Percentage of principal amount of debt redeemed.		200.00%
Debt instrument convertible fair value of derivative component		$ 5.2
Debt instrument convertible fair value of equity component		$ 7.2
Debt instrument convertible fair value of derivative component				17.5
Debt instrument convertible fair value of equity component				22.0
Interest Expense	$ 36.7
Debt issuance costs allocation to derivative component				0.3
Debt issuance costs allocation to equity component				$ 0.1