Quarterly report pursuant to Section 13 or 15(d)

Leases - Additional Information (Detail)

v3.19.1
Leases - Additional Information (Detail)
 1 Months Ended 3 Months Ended
Oct. 03, 2014
USD ($)
Aug. 31, 2018
USD ($)
ft²
Oct. 27, 2017
USD ($)
ft²
Jun. 30, 2017
USD ($)
ft²
Oct. 31, 2015
USD ($)
ft²
Mar. 31, 2019
USD ($)
Lessee, Operating Lease, Term of Contract 15 years       5 years  
Lessee Operating Lease Annual Average Rental Expense $ 2,700,000       $ 200,000  
Operating Leases, Rent Expense, Net 40,700,000         $ 16,000,000
Land Subject to Ground Leases | ft²         6,100  
Operating Lease, Liability           26,470,000
Operating Lease, Right-of-Use Asset           22,618,000
Operating Lease, Expense           $ 800,000
MASSACHUSETTS            
Operating Leases, Rent Expense, Net     $ 3,600,000      
Land Subject to Ground Leases | ft²     27,043      
Lessee Operating Lease Maturity Month and Year     Nov. 30, 2026      
Lessee Operating Lease Base Rent Net of Abatements     $ 600,000      
Lessee Operating Lease Improvements Costs     $ 3,900,000      
AZERBAIJAN            
Lessee Operating Lease Annual Average Rental Expense   $ 94,000   $ 55,000    
Lessee, Operating Lease, Option to Extend       new-two year extension    
Land Subject to Ground Leases | ft²   3,681   2,295    
Lessee Operating Lease Maturity Date       Nov. 30, 2020    
OPPM [Member]            
Lessee Operating Lease Annual Average Rental Expense $ 300,000          
Lessee Operating Lease Percentage Of Desk Space To Occupy 10.00%          
TGTX [Member]            
Lessee Operating Lease Annual Average Rental Expense $ 1,100,000          
Lessee Operating Lease Percentage Of Desk Space To Occupy 45.00%