Quarterly report pursuant to Section 13 or 15(d)

Property and Equipment - Components of Property and Equipment (Details)

v3.19.3
Property and Equipment - Components of Property and Equipment (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2019
Dec. 31, 2018
Property, Plant and Equipment [Line Items]    
Total property and equipment $ 16,130 $ 14,583
Less: Accumulated depreciation (3,978) (2,564)
Property and equipment, net $ 12,152 12,019
Fortress Biotech Inc [Member] | Maximum [Member]    
Property, Plant and Equipment [Line Items]    
Useful Life (Years) 15 years  
Fortress Biotech Inc [Member] | Minimum [Member]    
Property, Plant and Equipment [Line Items]    
Useful Life (Years) 5 years  
Computer Equipment [Member] | Fortress Biotech Inc [Member]    
Property, Plant and Equipment [Line Items]    
Total property and equipment $ 648 648
Useful Life (Years) 3 years  
Furniture and Fixtures [Member] | Fortress Biotech Inc [Member]    
Property, Plant and Equipment [Line Items]    
Total property and equipment $ 1,153 1,128
Useful Life (Years) 5 years  
Leasehold Improvements [Member]    
Property, Plant and Equipment [Line Items]    
Total property and equipment $ 9,358 9,271
Construction in progress [Member] | Fortress Biotech Inc [Member]    
Property, Plant and Equipment [Line Items]    
Total property and equipment [1] 1,011 393
Machinery and Equipment [Member] | Fortress Biotech Inc [Member]    
Property, Plant and Equipment [Line Items]    
Total property and equipment $ 3,960 $ 3,143
Useful Life (Years) 5 years  
[1] Relates to the Mustang cell processing facility.