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FINANCING ARRANGEMENTS - Term Loan (Details)
6 Months Ended 12 Months Ended
Apr. 01, 2022
USD ($)
shares
Nov. 01, 2021
Jun. 30, 2022
USD ($)
shares
Jun. 30, 2021
USD ($)
Dec. 31, 2021
USD ($)
May 26, 2022
USD ($)
shares
May 25, 2022
USD ($)
Debt Instrument              
Debt instrument, conversion ratio   0.2336449          
Warrant              
Debt Instrument              
Warrant outstanding (in shares) | shares 2,750,000            
Warrants issued (in shares) | shares           250,000  
Warrant unissued (in shares) | shares     3,000,000        
Warrants exercised (in shares)     $ 23,000,000 $ 3,000,000 $ 27,000,000    
Stock option | Warrant              
Debt Instrument              
Expected dividend rate (in percent)     0.00%        
Expected volatility rate, minimum (in percent)     97.00%        
Expected volatility rate, maximum (in percent)     111.00%        
Risk free interest rate, minimum (in percent)     2.61%        
Risk free interest rate, maximum (in percent)     3.01%        
Expected term (in years)     5 years 6 months        
First-Lien Senior Secured Term Loan Facility | Secured debt | Vertex Refining              
Debt Instrument              
Principal Amounts $ 125,000,000            
Aggregate amount released from escrow 94,000,000            
Debit instrument, quarterly principal payment $ 2,000,000            
Required payments to principal, percent of original principal 1.25%            
Term Loan | Secured debt              
Debt Instrument              
Line of credit, maximum borrowing capacity           $ 165,000,000 $ 125,000,000
Accordion feature, higher borrowing capacity option           $ 40,000,000