Quarterly report pursuant to Section 13 or 15(d)

Revenues - Percentage by Customer (Details)

v3.19.3
Revenues - Percentage by Customer (Details) - Sales - Customer concentration risk
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
ASD Healthcare and Oncology Supply        
Disaggregation of Revenue [Line Items]        
Percentage 28.00% 58.00% 34.00% 53.00%
McKesson Specialty Care Distribution Corporation        
Disaggregation of Revenue [Line Items]        
Percentage 22.00% 33.00% 27.00% 38.00%
Aclaris        
Disaggregation of Revenue [Line Items]        
Percentage 19.00%   9.00%  
Celgene        
Disaggregation of Revenue [Line Items]        
Percentage 18.00%   9.00%  
Grifols        
Disaggregation of Revenue [Line Items]        
Percentage 0.00%   11.00%