DEBT (Tables)

12 Months Ended

Dec. 31, 2022

Debt

Schedule of Debt

Our debt consists of:

	December 31,
(In thousands)	2022			2021
2023 Notes	$	96,204		$	240,984
2025 Notes		192,500			192,500
2028 Notes		261,000			—
Total debt		549,704			433,484
Less: Unamortized debt discount and issuance costs		(9,331	)		(38,831	)
Total debt, net		540,373			394,653
Less: Current portion of long-term debt, net		96,193			—
Total long-term debt, net	$	444,180		$	394,653

Aggregate Scheduled Maturities of Long-Term Debt

The aggregate scheduled maturities of our long-term debt as of December 31, 2022 are as follows:

(In thousands)	Amount
Year ending December 31,
2023	$	96,204
2024		—
2025		192,500
2026		—
2027		—
Thereafter		261,000
Total	$	549,704

2023 Notes

Debt

Summary of Liability and Equity Components of Convertible Notes

Our outstanding 2023 Notes balances consisted of the following:

	December 31,
(In thousands)	2022			2021
Principal	$	96,204		$	240,984
Debt issuance costs, net		(11	)		(620	)
Net carrying amount	$	96,193		$	240,364

Schedule of Components of Interest Expense

The following table sets forth total interest expense recognized related to the 2023 Notes for the years ended December 31, 2022, 2021 and 2020:

	Year Ended December 31,
(In thousands)	2022		2021		2020
Contractual interest expense	$	2,617	$	5,121	$	5,121
Amortization of debt issuance costs		302		580		567
Total interest and amortization expense	$	2,919	$	5,701	$	5,688

2025 Notes

Debt

Summary of Liability and Equity Components of Convertible Notes

Our outstanding 2025 Notes balances consisted of the following:

	December 31,
(In thousands)	2022			2021
Liability component
Principal	$	192,500		$	192,500
Debt discount and issuance costs, net		(1,917	)		(38,211	)
Net carrying amount	$	190,583		$	154,289
Equity component, net	$	—		$	65,361

Schedule of Components of Interest Expense

The following table sets forth total interest expense recognized related to the 2025 Notes for the years ended December 31, 2022, 2021 and 2020:

	Year Ended December 31,
(In thousands)	2022		2021		2020
Contractual interest expense	$	4,813	$	4,813	$	4,813
Amortization of debt issuance costs		692		657		601
Amortization of debt discount		—		7,898		7,230
Total interest and amortization expense	$	5,505	$	13,368	$	12,644

2028 Notes

Debt

Summary of Liability and Equity Components of Convertible Notes

Our outstanding 2028 Notes balance consisted of the following:

(In thousands)	December 31, 2022
Liability component
Principal	$	261,000
Debt discount and issuance costs, net		(7,403	)
Net carrying amount	$	253,597

Schedule of Components of Interest Expense

The following table sets forth total interest expense recognized related to the 2028 Notes from the issuance through December 31, 2022:

	Date of Issuance through
(In thousands)	December 31, 2022
Contractual interest expense	$	4,514
Amortization of debt issuance costs		1,061
Total interest and amortization expense	$	5,575