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Debt (Tables) | 3 Months Ended
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Mar. 31, 2021
Debt Disclosure [Abstract] |
Schedule of Convertible Debt | The net carrying amount of the liability component of the Notes was as follows:
| March 31, 2021 |  | December 31, 2020
| (in thousands)
Principal | $ | 575,000 |  |  | $ | 575,000 |
Unamortized debt discount | (176,106) |  |  | (184,674) |
Unamortized debt issuance costs | (6,648) |  |  | (7,051) |
Carrying amount of the liability component, net | $ | 392,246 |  |  | $ | 383,275 |
The net carrying amount of the equity component of the Notes was as follows:
| March 31, 2021 |  | December 31, 2020
| (in thousands)
Proceeds allocated to the conversion option (debt discount) | $ | 205,290 |  |  | $ | 205,290 |
Less: allocated issuance costs | (4,478) |  |  | (4,478) |
Carrying amount of the equity component, net | $ | 200,812 |  |  | $ | 200,812 |
Schedule of Interest Expense | The following table sets forth total interest expense recognized related to the Notes:
| Three Months Ended March 31, |  |
| 2021 |  | 2020 |  |  |  |
| (in thousands)
Coupon interest expense | $ | 1,078 |  |  | $ | — |  |  |  |  |
Amortization of debt discount | 8,568 |  |  | — |  |  |  |  |
Amortization of debt issuance costs | 403 |  |  | — |  |  |  |  |
Total | $ | 10,049 |  |  | $ | — |  |  |  |  |

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- Definition Tabular disclosure of borrowings which can be exchanged for a specified number of another security at the option of the issuer or the holder. Disclosures include, but are not limited to, principal amount, amortized premium or discount, and amount of liability and equity components. + References No definition available. + Details
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- References No definition available. + Details
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