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Debt (Tables) | 6 Months Ended
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Jun. 30, 2020
Debt Disclosure [Abstract] |
Schedule of Convertible Debt | The net carrying amount of the liability component of the Notes was as follows:
| June 30, 2020
| (in thousands)
Principal | $ | 575,000 |
Unamortized debt discount | (201,193) |
Unamortized debt issuance costs | (7,858) |
Carrying amount of the liability component, net | $ | 365,949 |
The net carrying amount of the equity component of the Notes was as follows:
| June 30, 2020
| (in thousands)
Proceeds allocated to the conversion option (debt discount) | $ | 205,290 |
Less: allocated issuance costs | (4,478) |
Carrying amount of the equity component, net | $ | 200,812 |
Schedule of Interest Expense | The following table sets forth total interest expense recognized related to the Notes:
| Three Months Ended June 30, |  |  |  | Six Months Ended June 30, |  |
| 2020 |  | 2019 |  | 2020 |  | 2019
| (in thousands) |  |  |  |  |  |
Coupon interest expense | $ | 551 |  |  | $ | — |  |  | $ | 551 |  |  | $ | — |
Amortization of debt discount | $ | 4,097 |  |  | $ | — |  |  | $ | 4,097 |  |  | $ | — |
Amortization of debt issuance costs | $ | 206 |  |  | $ | — |  |  | $ | 206 |  |  | $ | — |
Total | $ | 4,854 |  |  | $ | — |  |  | $ | 4,854 |  |  | $ | — |

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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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