Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Narrative (Details)

v3.20.4
Commitments and Contingencies - Narrative (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2020
USD ($)
license_agreement
Research and Development Arrangement, Contract to Perform for Others [Line Items]  
Number of license agreements | license_agreement 2
Obligation due in less than one year $ 689
Purchase obligation 396
Royalty agreement terms  
Research and Development Arrangement, Contract to Perform for Others [Line Items]  
Obligation due in less than one year $ 50
Royalty agreement terms | Net sales  
Research and Development Arrangement, Contract to Perform for Others [Line Items]  
Royalty percentage 1.00%
Royalty agreement terms | License fees  
Research and Development Arrangement, Contract to Perform for Others [Line Items]  
Royalty percentage 21.00%