XML 30 R19.htm IDEA: XBRL DOCUMENT
v3.21.2

Convertible Senior Notes (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2021
Debt Disclosure [Abstract] |
Schedule of Carrying Values and Coupon Rates on Financing Arrangements | The following table summarizes information about the 2023 Notes (in thousands):
| June 30, 2021 |  | December 31, 2020
Principal amount of the 2023 Notes outstanding | $ | 345,729 |  |  | $ | 495,280 |
Unamortized discount (including unamortized debt issuance cost) | (30,411) |  |  | (52,987) |
Total long-term portion of notes payable | $ | 315,318 |  |  | $ | 442,293 |
Carrying value of equity component of the 2023 Notes | $ | 27,776 |  |  | $ | 48,397 |
Fair value of the 2023 Notes outstanding (Level 2) | $ | 341,687 |  |  | $ | 466,053 |

X
- References No definition available. + Details
Name: | us-gaap_DebtDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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. + References No definition available. + Details
Name: | us-gaap_ScheduleOfDebtTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration