Quarterly report pursuant to Section 13 or 15(d)

Intangible assets, royalties and goodwill - Estimated future amortization of intangible assets (Details)

v3.20.2
Intangible assets, royalties and goodwill - Estimated future amortization of intangible assets (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2020
Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]    
Weighted average remaining useful life 10 years 3 months 18 days  
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]    
Remainder of 2020 $ 357  
2021 1,551  
2022 1,551  
2023 1,551  
2024 1,551  
Thereafter 6,935  
Net Carrying Amount $ 13,496 $ 14,641