Convertible Senior Notes (Tables) - 3.75% Convertible Senior Notes

9 Months Ended

Sep. 30, 2022

Debt Instrument [Line Items]

Schedule of Convertible Senior Notes

The 3.75% Convertible Senior Notes consisted of the following (in thousands):

	September 30,
	2022
Principal amounts:
Principal	$	197,278
Unamortized debt issuance costs (1)		(3,686)
Net carrying amount	$	193,592

1) Included in the unaudited interim condensed consolidated balance sheets within the 3.75% Convertible Senior Notes, net and amortized over the remaining life of the notes using the effective interest rate method.

Schedule of debt

The following table summarizes the total interest expense and effective interest rate related to the 3.75% Convertible Senior Notes (in thousands, except for effective interest rate):

	September 30,			September 30,
	2022			2021
Interest expense	$	1,849	$	1,849
Amortization of debt issuance costs		323		306
Total		2,172		2,155
Effective interest rate		4.5%		4.5%