XML 30 R19.htm IDEA: XBRL DOCUMENT v3.21.2
Convertible Notes
9 Months Ended
Sep. 30, 2021
Debt Disclosure [Abstract]  
Convertible Notes Convertible Notes
The Company’s convertible notes are shown in the following table:
As of
(In thousands)September 30, 2021December 31, 2020
2023 Notes$172,500 $172,500 
Unamortized discount — 2023 Notes(10,094)(15,420)
Unamortized debt issuance costs — 2023 Notes(673)(1,049)
Total convertible notes161,733 156,031 
Less current portion— — 
Total long-term convertible notes$161,733 $156,031 
Interest expense related to the notes for the three and nine months ended September 30, 2021 and 2020 was as follows:
Three Months EndedNine Months Ended
 September 30,September 30,
(In thousands)2021202020212020
2023 Notes coupon interest at a rate of 1.375%$593 $593 $1,779 $1,779 
2023 Notes amortization of discount and debt issuance cost at an additional effective interest rate of 4.9%1,927 1,823 5,702 5,394 
Total interest expense on convertible notes$2,520 $2,416 $7,481 $7,173