XML 24 R26.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Convertible Senior Notes (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2019
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 2019 Notes and 2023 Notes (in thousands).
| December 31, 2019 |  | December 31, 2018
Principle amount of 2019 Notes outstanding | $ | — |  |  | $ | 27,326 |
Unamortized discount (including unamortized debt issuance cost) | — |  |  | (893) |
Total current portion of notes payable | $ | — |  |  | $ | 26,433 |
Principle amount of 2023 Notes outstanding | $ | 750,000 |  |  | $ | 750,000 |
Unamortized discount (including unamortized debt issuance cost) | (111,041) |  |  | (140,136) |
Total long-term portion of notes payable | $ | 638,959 |  |  | $ | 609,864 |
Carrying value of equity component of 2023 Notes | $ | 101,422 |  |  | $ | 127,997 |
Fair value of convertible senior notes outstanding (Level 2) | $ | 647,280 |  |  | $ | 713,533 |

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: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration