Convertible notes repurchase discount rate.

No definition available.

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- Definition

Number of privately negotiated exchange agreements.

+ References

No definition available.

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- Definition

Description of the facts pertaining to a notice received from a lender that an event of default has occurred with respect to the long-term debt instrument or borrowing, and a description of the expected financial consequences of receiving such notice, including the effects of a demand for immediate repayment of all amounts due, and the classification of the debt on the balance sheet.

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- Definition

The carrying amount of the equity component of convertible debt which may be settled in cash upon conversion.

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- Definition

The price per share of the conversion feature embedded in the debt instrument.

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- Definition

Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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- Definition

The number of equity instruments that the holder of the debt instrument would receive if the debt was converted to equity.

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- Definition

Remaining amortization period for discount on the liability component of convertible debt which may be settled in cash upon conversion, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

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

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- Definition

Description of the frequency of periodic payments (monthly, quarterly, annual).

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- Definition

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

+ References

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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.

+ Details

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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- Definition

Amount of the required periodic payments applied to principal.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

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.

+ References

No definition available.

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- Definition

Amount, after accumulated amortization, of debt discount.

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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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- Definition

For a debtor, the aggregate gain (loss) recognized on the restructuring of payables arises from the difference between the book value of the debt before the restructuring and the fair value of the payments on the debt after restructuring is complete.

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- Definition

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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- Definition

Includes offering costs of open-end investment companies, and closed-end funds with a continuous offering period.

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- Definition

The cash outflow for loan and debt issuance costs.

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The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

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Convertible Notes - Additional Information (Detail) $ / shares in Units, $ in Thousands			1 Months Ended		12 Months Ended
	Nov. 23, 2020 $ / shares	Nov. 20, 2020 $ / shares	Nov. 30, 2020 USD ($) shares Agreement	Oct. 31, 2018 USD ($)	Dec. 31, 2020 USD ($) shares $ / shares	Dec. 31, 2019 USD ($)
Debt Instrument [Line Items]
Gain on debt conversion					$ 61,118
Convertible Senior Notes Due 2023 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount			$ 197,143	$ 475,000	$ 277,857	$ 475,000
Proceeds from issuance of debt				$ 460,134
Debt instrument interest payment term					The convertible notes bear interest at a rate of 5.00% per annum, payable semi-annually in arrears on April 1 and October 1 of each year, beginning on April 1, 2019.
Convertible debt instruments with interest rates					5.00%
Debt instrument maturity period					Oct. 01, 2023
Debt instrument, periodic payment of principal amount					$ 0
Debt instrument, term					5 years
Debt instrument, default condition					To the extent the Company so elects, the sole remedy for an event of default relating to certain failures by the Company to comply with certain reporting covenants in the Indenture will, for the first 365 days after such event of default, consist exclusively of the right to receive additional interest on the notes. Upon conversion, the Company will pay or deliver, as the case may be, cash, shares of our common stock or a combination of cash and shares of the Company’s common stock, at the Company’s election (the “cash conversion option”).
Conversion rate of convertible notes					5.9735
Conversion price per share \| $ / shares	$ 6.68	$ 7.36			$ 167.41
Debt instrument, convertible, number of common stock \| shares			17,339,577		1,660
Debt instrument, convertible, value of embedded conversion option					$ 57,595
Debt instrument, effective interest rate					8.00%
Number of privately negotiated exchange agreements \| Agreement			2
Convertible notes repurchase discount rate	42.00%	36.00%
Gain on debt conversion					$ 61,118
Gain on extinguishment of debt					176,009
Loss on induced conversion					114,891
Transaction costs attributable to the convertible notes					13,467
Offering costs attributable to the equity component					1,398
Unamortized debt discount					$ 15,229	$ 34,219
Debt instrument, convertible, remaining term of accretion of convertible notes					33 months