Debt - Summary (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Debt
Total debt	$ 549,707	$ 433,484
Less: Unamortized debt discount and issuance costs	(10,960)	(38,831)
Total debt, net	538,747	394,653
Less: Current portion of long-term debt, net	96,016	0
Total long-term debt, net	442,731	394,653
2023 Notes \| Convertible subordinated notes
Debt
Total debt	96,207	240,984
2025 Notes \| Convertible senior notes
Debt
Total debt	192,500	192,500
Less: Unamortized debt discount and issuance costs	(2,437)	$ (38,211)
2028 Notes \| Convertible senior notes
Debt
Total debt	261,000
Less: Unamortized debt discount and issuance costs	$ (8,332)

Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount of unamortized debt discount (premium) and debt issuance costs.

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Represents the aggregate of total long-term debt, including current maturities and short-term debt.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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