Carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Convertible Notes Payable, excluding current portion. Convertible Notes Payable is a written promise to pay a note which can be exchanged for a specified amount of another, related security, at the option of the issuer and the holder.

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- Definition

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

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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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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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-Name Accounting Standards Codification
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Convertible Senior Notes (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Jan. 07, 2021	Dec. 31, 2020	May 31, 2020	May 29, 2020	May 18, 2020	Mar. 31, 2018
Convertible Senior Notes
Net carrying amount	$ 192,011		$ 85,640
3.75% Convertible Senior Notes
Convertible Senior Notes
Principal amount	197,278			$ 212,463	$ 12,500	$ 200,000
Unamortized debt issuance costs	(5,267)
Net carrying amount	$ 192,011
5.5% Convertible Senior Notes
Convertible Senior Notes
Principal amount		$ 160	$ 33,500			$ 100,000	$ 100,000