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Convertible Senior Notes, Net
6 Months Ended
Jun. 30, 2024
Debt Disclosure [Abstract]  
Convertible Senior Notes, Net

Note 10 – Convertible Senior Notes, Net

During the fourth quarter of 2018, we issued $230.0 million of the 5.375% Convertible Senior Notes due 2023 (the "2023 Notes" or "Convertible Notes"), for which we received $223.7 million after deducting the underwriting discount and offering expenses.

During the three and six months ended June 30, 2023, we repurchased $36.8 million and $43.9 million of aggregate principal amount of the 2023 Notes at a weighted-average price of 99.3% and 98.9%, respectively. As a result of this transaction, we recorded a gain of $0.3 million and $0.5 million within gain on extinguishment of debt in our condensed consolidated statement of operations for the three and six months ended June 30, 2023, respectively. The gain represents the difference between the repurchase price and the carrying amount of the 2023 Notes, net of the proportionate amount of unamortized debt issuance costs. During the third quarter of 2023, we repurchased an additional $10.0 million of aggregate principal amount of the 2023 Notes at a weighted-average price of 99.7%. During the fourth quarter of 2023, we repaid the remaining $176.1 million outstanding principal of the 2023 Notes in cash at par. All repurchase transactions occurred in the open market as a result of reverse inquiries from investors with no solicitation from us.

The aggregate contractual interest expense was approximately $2.8 million and $5.8 million for the three and six months ended June 30, 2023. With respect to the amortization of the discount on the liability component of the Convertible Notes as well as the amortization of deferred financing costs, we reported additional non-cash interest expense of approximately $0.4 million and $0.8 million for the three and six months ended June 30, 2023.