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Convertible Senior Notes (Tables)
9 Months Ended
Sep. 30, 2022
Debt Instrument [Line Items]  
Summary of convertible notes outstanding

​

​

​

​

Principal

$

143,750

Less: unamortized issuance costs

​

(3,106)

Net carrying amount

$

140,644

Schedule of total interest expense recognized related to the convertible notes

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Three Months Ended September 30,

​

Nine Months Ended September 30,

​

2022

​

2021

​

2022

​

2021

Contractual interest expense

$

943

​

$

943

​

$

2,830

​

$

2,831

Amortization of debt issuance costs

​

228

​

​

228

​

​

678

​

​

673

Total interest expense

$

1,171

​

$

1,171

​

$

3,508

​

$

3,504

Convertible senior notes  
Debt Instrument [Line Items]  
Schedule of principal repayments of debt

​

​

​

​

Years ended December 31,

Future Minimum Payments

2022

$

—

2023

​

3,773

2024

​

3,773

2025

​

3,773

2026

​

145,638

Total minimum payments

$

156,957

Less: interest

​

(13,207)

Less: unamortized issuance costs

​

(3,106)

Convertible senior notes

$

140,644