v3.26.3
Summary of business and significant accounting policies (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Dec. 31, 2024
Property, Plant and Equipment [Line Items]        
Contract with Customer, Liability $ 54,300   $ 54,200  
Deferred Revenue, Revenue Recognized 21,900 $ 23,000    
Accumulated deficit $ (850,600)   (774,252)  
ieepa tariffs paid     $ 20,200  
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount 97.00%   66.00%  
RevenueIncreaseDecrease (26.20%)      
Gain (Loss) on Extinguishment of Debt $ (15,950) 0    
Revenues 99,065 134,308    
Cash and cash equivalents $ 40,723 $ 69,634 $ 49,674  
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount 97.00%   66.00%  
Cash, Cash Equivalents, and Short-Term Investments $ 40,723      
Market Capitalization, Percentage Increase/Decrease   38.00%    
Goodwill, Impairment Loss 0 $ 18,600    
Repayments of Lines of Credit $ 375 0    
Market Capitalization Sensitivity 94.00%      
Interest Income, Other $ 400 500    
Operating Income (Loss) (57,245) (45,208)    
Market Capitalization 126,400      
Aggregate Debt Outstanding, Principal 99,900   $ 69,300  
Purchase Commitment, Remaining Minimum Amount Committed 25,819   1,343  
Non-Cancelable Non-Refundable Purchase Commitment 24,500      
Stockholders' Equity Attributable to Parent $ 3,482 $ 109,980 $ 77,392 $ 151,689