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Leases - Narrative (Details)
$ in Thousands
 12 Months Ended
Apr. 26, 2019
ft²
option
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Aug. 06, 2019
ft²
Jun. 26, 2019
ft²
Leases [Abstract]            
Depreciation | $   $ (3,047) $ (2,938) $ (2,700)    
Rental income | $     $ 600 $ 1,100    
Gelesis            
Leases - Rental [Line Items]            
Lease liability, subleased area (in square feet)           9,446
Dewpoint Therapeutics, Inc.            
Leases - Rental [Line Items]            
Lease liability, subleased area (in square feet)         11,852  
Lease At 6 Tide Street            
Leases - Rental [Line Items]            
Rentable area (in square feet) 50,858          
Lease liability, initial term 10 years 3 months          
Lease liability, number of renewal options | option 2          
Lease liability, renewal term 5 years