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Convertible Senior Notes (Tables)

12 Months Ended

Dec. 31, 2020

Debt Disclosure [Abstract]

Schedule of Equity and Liability Components of the Convertible Senior Notes

The following table summarizes information about the equity and liability components of the 2023 Notes (in thousands).

			December 31, 2020						December 31, 2019
Principal amount of 2023 Notes outstanding			$	495,280					$	750,000
Unamortized discount (including unamortized debt issuance cost)			(52,987)						(111,041)
Total long-term portion of notes payable			$	442,293					$	638,959
Carrying value of equity component of 2023 Notes			$	48,397					$	101,422
Fair value of convertible senior notes outstanding (Level 2)			$	466,053					$	647,280

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- Definition

Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation.

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