Carrying value of the Notes:


(in thousands)	September 30, 2023		December 31, 2022
Principal	$	502,270	$	600,000
Unamortized issuance costs	(3,517)		(6,391)
Convertible senior notes, net	$	498,753	$	593,609

Interest expense related to the Notes:


	Three Months Ended September 30,				Nine Months Ended September 30,
(in thousands)	2023		2022		2023		2022
Contractual interest expense (0.75% coupon)	$	827	$	1,125	$	2,949	$	3,375
Amortization of issuance costs	613		724		1,988		2,163
	$	1,440	$	1,849	$	4,937	$	5,538

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

+ References

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+ Details

- Definition

Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item.

+ References + Details