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Debt (Tables)

9 Months Ended

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.