v3.26.1
Convertible Senior Notes
6 Months Ended
Jun. 30, 2026
Debt Disclosure [Abstract]  
Convertible Senior Notes Convertible Senior Notes
2029 Notes
At June 30, 2026, the Company had $675.0 million aggregate principal amount of the 1.00% 2029 Notes outstanding. The 2029 Notes consisted of the following (in thousands):
June 30,
2026
December 31,
2025
Liability:
Principal$675,000 $675,000 
Unamortized debt issuance costs(7,681)(8,954)
Net carrying amount$667,319 $666,046 
The effective interest rate of the 2029 Notes, excluding the conversion option, remained 1.40% at June 30, 2026.
The Company carries the 2029 Notes at face value less unamortized debt issuance costs in the unaudited condensed consolidated balance sheets and presents the fair value for disclosure purposes only. The estimated fair value was determined based on the actual bids and offers of the 2029 Notes in an over-the-counter market on the last trading day of the period. The estimated fair value of the 2029 Notes, based on a market approach at June 30, 2026, was approximately $623.0 million, which represents a Level 2 valuation.
During the quarter ended June 30, 2026, the Company recognized $0.6 million of interest expense related to the amortization of debt issuance costs and $1.7 million of coupon interest expense. During the quarter ended June 30, 2025, the Company recognized $0.6 million of interest expense related to the amortization of debt issuance costs and $1.7 million of coupon interest expense.
During the six months ended June 30, 2026, the Company recognized $1.3 million of interest expense related to the amortization of debt issuance costs and $3.4 million of coupon interest expense. During the six months ended June 30, 2025, the Company recognized $1.3 million of interest expense related to the amortization of debt issuance costs and $3.4 million of coupon interest expense.
The 2029 Notes were not convertible at June 30, 2026. It is the Company’s current intent to settle conversions of the 2029 Notes through “combination settlement”, which involves repayment of the principal portion in cash and any excess of the conversion value over the principal amount in shares, cash, or a combination for any further value.
In connection with the offering of the 2029 Notes, the Company entered into privately-negotiated capped call transactions (the “2029 Capped Calls” and together with the 2026 Capped Calls (as defined below), the “Capped Calls”). There have been no changes to the condition of the 2029 Notes since December 31, 2025, and the 2029 Capped Calls were unchanged and still outstanding at June 30, 2026.
2026 Notes
On March 15, 2026, the scheduled maturity date of the 0.00% 2026 Notes (the “2026 Notes”), the Company repaid the total outstanding $230.2 million aggregate principal amount pursuant to the terms of the 2026 Notes with cash on hand.
During the quarters ended June 30, 2026 and 2025, the Company recognized no interest expense and $0.2 million interest expense related to the amortization of debt issuance costs, respectively.
During the six months ended June 30, 2026 and 2025, the Company recognized interest expense related to the amortization of debt issuance costs of $0.2 million and $0.4 million, respectively.
All privately-negotiated capped call transactions entered into with the offering of the 2026 Notes (the “2026 Capped Calls”) expired upon the maturity of the 2026 Notes on March 15, 2026.