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Leases - Narrative (Details)
$ in Thousands
1 Months Ended 9 Months Ended
Oct. 31, 2021
USD ($)
contract
unit
Aug. 31, 2021
Mar. 31, 2021
USD ($)
Sep. 30, 2017
Sep. 30, 2022
USD ($)
Sep. 30, 2021
USD ($)
ft²
Jun. 30, 2021
unit
Feb. 28, 2019
unit
Oct. 31, 2018
Lessor, Lease, Description [Line Items]                  
Gain on termination of operating lease         $ 0 $ (12)      
Number of contracts | contract 2                
Number of manufacturing properties | unit 2                
Total lease payments receivable         $ 1,124        
Proceeds from deposits from customers $ 100                
Sublease, Lease Term 1                  
Lessor, Lease, Description [Line Items]                  
Total lease payments receivable 100                
Sublease, Lease Term 2                  
Lessor, Lease, Description [Line Items]                  
Total lease payments receivable $ 100                
MediaWorks Corporate Headquarters | Additional Space                  
Lessor, Lease, Description [Line Items]                  
Operating lease rent-free period   18 months              
Operating lease contract term   9 years 11 months              
Manufacturing Space in Enfield, United Kingdom                  
Lessor, Lease, Description [Line Items]                  
Gain on termination of operating lease     $ 100            
Lease termination fee expense     $ 200            
Manufacturing Space in Enfield, United Kingdom | Building                  
Lessor, Lease, Description [Line Items]                  
Operating lease contract term               15 years  
Number of units | unit               3  
Number of units surrendered | unit             1    
Number of contracts | unit 2                
Office Space in Rockville, Maryland | Building                  
Lessor, Lease, Description [Line Items]                  
Operating lease contract term                 5 years
Manufacturing Suite in Stevenage, United Kingdom | Manufacturing Facility                  
Lessor, Lease, Description [Line Items]                  
Operating lease rent-free period       6 months          
Manufacturing Space In Stevenage, United Kingdom                  
Lessor, Lease, Description [Line Items]                  
Number of square feet | ft²           70,000