Quarterly report [Sections 13 or 15(d)]

Supplemental Balance Sheet Information - Property, Plant and Equipment, Net - Narrative (Details)

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Supplemental Balance Sheet Information - Property, Plant and Equipment, Net - Narrative (Details)
$ in Thousands
 3 Months Ended 9 Months Ended
Oct. 29, 2026
USD ($)
Sep. 30, 2026
USD ($)
operatingLocation
Sep. 30, 2026
USD ($)
Sep. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
Property, Plant, and Equipment [Line Items]          
Loss on impairment of assets     $ 11,698 $ 0  
Property, plant, and equipment, net   $ 12,448 12,448   $ 42,855
Operating lease, right-of-use asset   $ 8,278 8,278   $ 21,205
Gain on modification of leases     3,219 $ 0  
Project Core          
Property, Plant, and Equipment [Line Items]          
Number of operating locations of leases modified | operatingLocation   8      
Property, plant, and equipment, net   $ 0 0    
Operating lease, right-of-use asset   1,087 $ 1,087    
Reduction in right-of-use assets   8,750      
Gain on modification of leases   3,219      
Project Core | Impairment charges          
Property, Plant, and Equipment [Line Items]          
Loss on impairment of assets   11,698      
Location, Statement of Income, Balance [Axis]: us-gaap:OperatingLeaseRightOfUseAsset | Project Core          
Property, Plant, and Equipment [Line Items]          
Loss on impairment of assets   2,687      
Location, Statement of Income, Balance [Axis]: us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization | Project Core          
Property, Plant, and Equipment [Line Items]          
Loss on impairment of assets   $ 9,011      
Subsequent Event | Disposal Group, Disposed of by Sale, Not Discontinued Operations | Manchester Plant          
Property, Plant, and Equipment [Line Items]          
Disposal, base purchase price $ 17,000        
Disposal, cash 10,000        
Disposal, note receivable $ 7,000