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Debt (Tables)
 3 Months Ended
Mar. 31, 2021
Debt Disclosure [Abstract]  
Schedule of outstanding debt obligations and interest expense related to convertible debt
Outstanding debt obligations as of March 31, 2021 were as follows (in thousands):
MaturitiesInterest Rates as of March 31, 2021March 31, 2021December 31, 2020
Convertible senior notesMay 20251.50%$577,215 $568,744 
Non-revolving Loan (1)
2022 - 2024
2.88% - 5.25%
103,988 103,305 
Master Vehicle Loan (1)
2021 - 2024
2.60% - 6.75%
8,001 7,947 
Total long-term debt, including current maturities$689,204 $679,996 
Less: long-term debt maturing within one year(37,567)(35,760)
Total long-term debt$651,637 $644,236 
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(1)These loans were acquired as part of the Flexdrive acquisition on February 7, 2020.
The following table sets forth the primary components of interest expense as reported on the condensed consolidated statements of operations (in thousands):
Three Months Ended March 31,
20212020
Contractual interest expense related to the 2025 Notes$2,803 $— 
Amortization of debt discount and issuance costs8,471 — 
Interest expense related to vehicle loans1,294 1,507 
Interest expense$12,568 $1,507 
Schedule of convertible notes
The net carrying amounts of the liability component of the 2025 Notes were as follows (in thousands):
March 31, 2021
Principal$747,500 
Unamortized debt discount and debt issuance costs(170,285)
Net carrying amount of liability component$577,215 
Schedule of maturities of long-term debt outstanding
Maturities of long-term debt outstanding, including current maturities, as of March 31, 2021 were as follows (in thousands):
Remainder of 2021$28,034 
202254,784 
202323,480 
20245,691 
2025577,215 
Thereafter— 
Total long-term debt outstanding$689,204