Fair Value of Financial Assets and Liabilities - Summary of Long-term Debt Carried at Amortized Cost on Condensed Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative liability - exchange option and change of control	$ 4,451	$ 6,058
Long-term royalty linked notes, less current portion	14,397
Book Value
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Current portion of long-term debt		1,627
Long-term exchangeable note	7,713	6,930
Derivative liability - exchange option and change of control	4,451	6,058
Royalty linked notes	14,397	17,968
Total	26,561	32,583
Approximate Fair Value
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Current portion of long-term debt		1,627
Long-term exchangeable note	9,788	9,495
Derivative liability - exchange option and change of control	4,451	6,058
Royalty linked notes	14,397	17,968
Total	28,636	35,148
Level 2 \| Approximate Fair Value
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Current portion of long-term debt		1,627
Long-term exchangeable note	9,788	9,495
Total	9,788	11,122
Level 3 \| Approximate Fair Value
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative liability - exchange option and change of control	4,451	6,058
Royalty linked notes	14,397	17,968
Total	$ 18,848	$ 24,026