XML 22 R44.htm IDEA: XBRL DOCUMENT v3.19.3
Intangible Assets and Goodwill - Estimated Future Amortization (Details) - Licensing Agreements - USD ($)
$ in Thousands
Sep. 30, 2019
Dec. 31, 2018
Finite Lived Intangible Assets    
2019 $ 1,212  
2020 4,847  
2021 4,847  
2022 4,847  
2023 4,847  
Thereafter 43,532  
Total intangible asset, net $ 64,132 $ 51,930