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Debt (Tables) | 9 Months Ended
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Sep. 30, 2021
Debt Disclosure [Abstract] |
Convertible Debt [Table Text Block] | Convertible senior notes consist of the following (in thousands):
|  | September 30, 2021 |  |  | December 31, 2020 |
3.25% convertible senior notes due 2023* |  | $ | 182 |  |  | $ | 34,134 |
* The amounts presented for the 3.25% convertible senior notes due 2023 within the table represent the fair value as of September 30, 2021 and December 31, 2020 (see Note 16 - Fair Value Measurements). The principal amount of these notes is nil and $22.9 million as of September 30, 2021 and December 31, 2020, respectively. The accrued, but unpaid, PIK interest is $0.1 million and $0.9 million as of September 30, 2021 and December 31, 2020, respectively.
Schedule of Debt [Table Text Block] | Term loan consists of the following (in thousands):
|  | September 30, 2021 |  |  | December 31, 2020 |
|  |  |  |  | Debt Discount/ |  |  |  |  |  |  |  |  | Debt Discount/ |  |  |  |
|  | Principal |  |  | Issuance |  |  | Net |  |  | Principal |  |  | Issuance |  |  | Net |
|  | Amount |  |  | Costs* |  |  | Amount |  |  | Amount** |  |  | Costs* |  |  | Amount |
2019 Recap Term Loan |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 119,801 |  |  | $ | (8,471 | ) |  | $ | 111,330 |
2021 BSP Term Loan |  |  | 98,753 |  |  |  | (3,124 | ) |  |  | 95,629 |  |  |  | — |  |  |  | — |  |  |  | — |
* The term loan was valued using the discounted cash flow method to determine the implied debt discount. The debt discount and issuance costs are being amortized over the life of the term loan on a straight-line basis which approximates the effective interest method. ** The amount presented excludes accrued, but unpaid, PIK interest of $4.7 million as of December 31, 2020.

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- Definition Tabular disclosure of convertible debt instrument. Includes, but is not limited to, principal amount and amortized premium or discount. + References No definition available. + Details
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- References No definition available. + Details
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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. + References No definition available. + Details
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