Debt (Tables)

12 Months Ended

Dec. 31, 2021

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments

The following table summarizes long-term debt, net, at December 31, 2021 and 2020 (in thousands):

	2021		2020
0.25% Convertible Senior Notes due 2028
Principal	$	345,000	$	—
Unamortized debt discount	(8,963)		—
Unamortized debt issuance costs	(208)		—
Total 0.25% Convertible Senior Notes due 2028	335,829		—
1.25% Convertible Senior Notes due 2025
Principal	201,250		201,250
Unamortized debt discount	(4,090)		(32,592)
Unamortized debt issuance costs	(506)		(538)
Total 1.25% Convertible Senior Notes due 2025, net	196,654		168,120
Equipment financing obligations	1,206		3,808
Total debt	533,689		171,928
Less: Current portion of equipment financing obligations	(1,135)		(2,841)
Total long-term debt, net	$	532,554	$	169,087

Schedule of Maturities of Long-term Debt

Maturities of long-term debt at December 31, 2021 are summarized as follows (in thousands):

	0.25% Convertible Senior Notes		1.25% Convertible Senior Notes		Equipment Financing Obligations		Total Long-Term Debt
2022	$	—	$	—	$	1,135	$	1,135
2023	—		—		69		69
2024	—		—		2		2
2025	—		201,250		—		201,250
2026	—		—		—		—
Thereafter	345,000		—		—		345,000
Total Debt	345,000		201,250		1,206		547,456
Less: Current portion of long-term debt	—		—		(1,135)		(1,135)
Less: Unamortized debt discount	(8,963)		(4,090)		—		(13,053)
Less: Unamortized debt issuance costs	(208)		(506)		—		(714)
Long-term debt, net	$	335,829	$	196,654	$	71	$	532,554