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Debt (Tables) | 12 Months Ended
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Dec. 31, 2020
Debt Disclosure [Abstract] |
Summary Of Equity and Liability Components of the Notes | The following table summarizes information about the net carrying amounts of the Notes as of December 31, 2020:
| 2024 Notes |  | 2026 Notes
Principal amount of Notes outstanding | $ | 13,750 |  |  | $ | 120,000 |
Unamortized discount (including unamortized debt issuance cost) | (2,619) |  |  | (25,986) |
Total notes payable | $ | 11,131 |  |  | $ | 94,014 |
The following table summarizes information about the net carrying amounts of the 2024 notes as of December 31, 2019:
| 2024 Notes
Principal amount of Notes outstanding | $ | 80,000 |
Unamortized discount (including unamortized debt issuance cost) | (18,955) |
Total notes payable | $ | 61,045 |
The following table summarizes interest expense recognized on the Notes:
| Year Ended December 31,
(in thousands) | 2020 |  | 2019
Contractual interest expense | $ | 4,026 |  |  | $ | 2,550 |
Amortization of debt issuance costs and discount | 4,355 |  |  | 2,529 |
Total notes payable | $ | 8,381 |  |  | $ | 5,079 |
Schedule of Maturities of Long-term Debt | The following table summarizes the future principal payments for the Notes as of December 31, 2020 (in thousands):
2021 | $ | — |
2022 | — |
2023 | — |
2024 | 13,750 |
2025 | — |
Thereafter | 120,000 |
Total | $ | 133,750 |

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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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- Definition Tabular disclosure of maturity and sinking fund requirement for long-term debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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