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Convertible Senior Notes (Tables) - Convertible senior notes | 3 Months Ended
--- | ---
Mar. 31, 2024
Debt Instrument [Line Items] |
Schedule of convertible notes outstanding | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | 2026 Convertible Notes | ​ | 2029 Convertible Notes | ​ | Total Convertible Notes
Principal | $ | 26,350 | ​ | $ | 241,500 | ​ | $ | 267,850
Less: unamortized issuance costs | ​ | (317) | ​ | ​ | (5,108) | ​ | ​ | (5,425)
Net carrying amount | $ | 26,033 | ​ | $ | 236,392 | ​ | $ | 262,425
Schedule of total interest expense recognized related to the convertible notes | ​
​ | ​ | ​ | ​ | ​ | ​
​ | Three Months Ended March 31,
​ | 2024 | ​ | 2023
Contractual interest expense | $ | 1,908 | ​ | $ | 1,479
Amortization of debt issuance costs | ​ | 300 | ​ | ​ | 263
Total interest expense | $ | 2,208 | ​ | $ | 1,742
Schedule of future minimum payments | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Years ended December 31, | 2026 Convertible Notes | ​ | 2029 Convertible Notes | ​ | Total Convertible Notes
2024 | $ | 346 | ​ | $ | 3,471 | ​ | $ | 3,817
2025 | ​ | 692 | ​ | ​ | 6,943 | ​ | ​ | 7,635
2026 | ​ | 26,696 | ​ | ​ | 6,943 | ​ | ​ | 33,639
2027 | ​ | — | ​ | ​ | 6,943 | ​ | ​ | 6,943
2028 | ​ | — | ​ | ​ | 6,943 | ​ | ​ | 6,943
Thereafter | ​ | — | ​ | ​ | 244,972 | ​ | ​ | 244,972
Total minimum payments | $ | 27,734 | ​ | $ | 276,215 | ​ | $ | 303,949
Less: interest | ​ | (1,384) | ​ | ​ | (34,715) | ​ | ​ | (36,099)
Less: unamortized issuance costs | ​ | (317) | ​ | ​ | (5,108) | ​ | ​ | (5,425)
Convertible Notes carrying value | $ | 26,033 | ​ | $ | 236,392 | ​ | $ | 262,425
​

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