v3.26.1
Convertible Senior Notes
3 Months Ended
Mar. 31, 2026
Convertible Senior Notes  
Convertible Senior Notes

Note 11. Convertible Senior Notes

Convertible Senior Notes payable consisted of the following at March 31, 2026 and December 31, 2025 (in thousands):

March 31, 

December 31, 

  ​ ​ ​

2026

  ​ ​ ​

2025

  ​ ​ ​

Principal amount of 2026 Convertible Senior Notes

$

186,185

$

186,185

Less: unamortized debt issuance costs

(795)

(1,091)

Total carrying value of Convertible Senior Notes, net

$

185,390

$

185,094

The 2026 Convertible Senior Notes payable of $186.2 million are due and payable in December 2026. The 2025 Convertible Senior Notes matured on June 1, 2025.

Interest expense incurred in connection with the Convertible Senior Notes consisted of the following for the three months ended March 31, 2026 and 2025 (in thousands):

March 31, 

  ​ ​ ​

2026

  ​ ​ ​

2025

  ​ ​ ​

Coupon interest

$

349

$

457

Amortization of debt issuance costs

296

320

Total interest expense on Convertible Senior Notes

$

645

$

777

See Note 12 – Convertible Senior Notes to the Company’s consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2025 for additional information related to the Company’s Convertible Senior Notes.