Annual report pursuant to Section 13 and 15(d)

Contingencies and Commitments - Narrative (Details)

v3.19.3.a.u2
Contingencies and Commitments - Narrative (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2019
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 $ 2,974
Purchase obligation 709
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%