Annual report pursuant to Section 13 and 15(d)

Leases - Narrative (Details)

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Leases - Narrative (Details)
$ in Thousands, SFr in Millions
 1 Months Ended 12 Months Ended
Feb. 28, 2021
USD ($)
Jan. 31, 2021
CHF (SFr)
Mar. 31, 2020
ft²
extension_option
Dec. 31, 2020
USD ($)
ft²
Dec. 31, 2021
USD ($)
Mar. 12, 2020
Lessee, Lease, Description [Line Items]            
Right-of-use assets       $ 5,489 $ 5,383  
Total       $ 8,407 $ 8,739  
Incremental borrowing rate       5.20% 5.20%  
Minimum lease payments         $ 11,171  
Payments for capital improvements | SFr   SFr 21.0        
Capital expenditure payments $ 11,800          
Minimum finance lease liability payments due         79,000  
Victoria, British Columbia            
Lessee, Lease, Description [Line Items]            
Area of property (in sqft) | ft²       13,206    
Right-of-use assets         200  
Total         $ 200  
Incremental borrowing rate         4.08%  
Minimum lease payments         $ 2,300  
Rockville, Maryland            
Lessee, Lease, Description [Line Items]            
Area of property (in sqft) | ft²     30,531      
Right-of-use assets       $ 5,500 5,200  
Total       8,400 $ 8,600  
Incremental borrowing rate           5.20%
Remaining lease term     11 years      
Number of extension options | extension_option     2      
Lease extension term     5 years      
Lease termination option term     7 years      
Proceeds from tenant improvements       $ 2,300