Long-Term Obligations (Tables) - 3% Convertible Senior Notes Due 2025 [Member]

6 Months Ended

Jun. 30, 2022

Summary of Outstanding Balances of Convertible Notes

The outstanding balances of the Notes consisted of the following (in thousands):

	As of June 30, 2022			As of December 31, 2021
Principal	$	172,500		$	172,500
Less: debt issuance costs		(2,807	)		(3,207	)
Net carrying amount	$	169,693		$	169,293

Schedule of Interest Expense Recognized Related to Convertible Notes

The following table sets forth total interest expense recognized related to the Notes for the periods indicated (in thousands):

	For the Three Months Ended June 30,				For the Six Months Ended June 30,
	2022		2021		2022		2021
Contractual interest expense	$	1,294	$	1,294	$	2,588	$	2,588
Amortization of debt issuance costs		202		195		400		386
Total	$	1,496	$	1,489	$	2,988	$	2,974

Summary of Future Minimum Payments on Convertible Notes

Future minimum payments on the Notes as of June 30, 2022 were as follows (in thousands):

Years ended December 31,	Future Minimum Payments
2022	$	2,588
2023		5,175
2024		5,175
2025		177,675
Total minimum payments	$	190,613
Less: interest and issuance costs		(20,920	)
Convertible senior notes	$	169,693