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v3.21.2

Debt (Tables) | 9 Months Ended
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Sep. 30, 2021
Debt |
Schedule of interest expense on the convertible notes, including amortization of debt issuance costs | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended September 30, | ​ | Nine Months Ended September 30,
​ |  | 2021 |  | 2020 |  | 2021 |  | 2020
Coupon interest | ​ | $ | — | ​ | $ | 262 | ​ | $ | 512 | ​ | $ | 660
Issuance costs amortization | ​ |  | — | ​ |  | 18 | ​ |  | 31 | ​ |  | 34
Discount amortization | ​ |  | — | ​ |  | 228 | ​ |  | 352 | ​ |  | 536
​ | ​ | $ | — | ​ | $ | 508 | ​ | $ | 895 | ​ | $ | 1,230

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- Definition Tabular disclosure of interest expense on debt instruments. + References No definition available. + Details
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- References No definition available. + Details
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