Quarterly report pursuant to Section 13 or 15(d)

Debt - Narrative (Details)

v3.21.4
Debt - Narrative (Details) - USD ($)
9 Months Ended 12 Months Ended
Sep. 15, 2021
Jul. 26, 2021
Jun. 10, 2021
Sep. 30, 2015
Sep. 30, 2021
Dec. 31, 2020
Mar. 01, 2021
Jan. 15, 2021
Nov. 10, 2020
Debt Instrument [Line Items]                  
Long-term debt outstanding         $ 347,386,000 $ 16,365,000      
Aria Energy LLC | LESPH                  
Debt Instrument [Line Items]                  
Ownership percentage             100.00%    
New Credit Agreement                  
Debt Instrument [Line Items]                  
Revolving credit facility $ 470,000,000                
New Credit Agreement | London Interbank Offered Rate (LIBOR)                  
Debt Instrument [Line Items]                  
Debt instrument, variable interest rate, floor rate 0.00%                
New Credit Agreement | Minimum | Prime rate                  
Debt Instrument [Line Items]                  
Debt instrument, variable interest rate 1.75%                
New Credit Agreement | Maximum | Prime rate                  
Debt Instrument [Line Items]                  
Debt instrument, variable interest rate 3.25%                
New Credit Agreement | Letters of credit                  
Debt Instrument [Line Items]                  
Letters of credit outstanding         14,700,000        
Other credit agreements | Letters of credit                  
Debt Instrument [Line Items]                  
Letters of credit outstanding         800,000        
Assai Senior Secured Notes | PEI                  
Debt Instrument [Line Items]                  
Cash consideration         30,000,000        
Line of credit | Aria Energy LLC                  
Debt Instrument [Line Items]                  
Long-term debt outstanding           40,000,000      
Line of credit | New Credit Agreement | Revolving credit facility                  
Debt Instrument [Line Items]                  
Line of credit facility, maximum borrowing capacity $ 250,000,000       235,300,000        
Long-term debt outstanding         0        
Line of credit | Comerica | Revolving credit facility                  
Debt Instrument [Line Items]                  
Line of credit facility, maximum borrowing capacity         8,000,000        
Long-term debt outstanding           0      
Line of credit | SAF Loan                  
Debt Instrument [Line Items]                  
Long-term debt outstanding         0 4,319,000      
Line of credit | SAF Loan | Line of credit                  
Debt Instrument [Line Items]                  
Line of credit facility, maximum borrowing capacity                 $ 5,000,000
Debt instrument, interest rate                 4.50%
Line of credit | Corporate Credit Account | Line of credit                  
Debt Instrument [Line Items]                  
Line of credit facility, maximum borrowing capacity                 $ 3,500,000
Line of credit | Comerica Bank - SAF Loan and Commercia Term Loan | Line of credit                  
Debt Instrument [Line Items]                  
Proceeds from secured debt         17,000,000 16,300,000      
Secured debt | Aria Energy LLC                  
Debt Instrument [Line Items]                  
Line of credit facility, maximum borrowing capacity           200,000,000      
Long-term debt outstanding           137,978,000      
Term loan payment       $ 500,000          
Secured debt | Revolving credit facility | Aria Energy LLC                  
Debt Instrument [Line Items]                  
Long-term debt outstanding           40,200,000      
Secured debt | New Credit Agreement                  
Debt Instrument [Line Items]                  
Debt instrument, principal amount 220,000,000                
Proceeds from secured debt 220,000,000                
Long-term debt outstanding         $ 220,000,000 0      
Debt instrument, interest rate         3.34%        
Secured debt | Comerica Term Loan                  
Debt Instrument [Line Items]                  
Debt instrument, principal amount                 $ 12,000,000
Debt instrument, interest rate                 4.50%
Senior secured notes | 3.75% Term Note                  
Debt Instrument [Line Items]                  
Debt instrument, principal amount               $ 72,500,000  
Long-term debt outstanding         $ 66,558,000 0      
Debt instrument, interest rate         3.75%     3.75%  
Senior secured notes | 4.47% Term Note                  
Debt Instrument [Line Items]                  
Debt instrument, principal amount               $ 60,800,000  
Long-term debt outstanding         $ 60,828,000 0      
Debt instrument, interest rate         4.47%     4.47%  
Senior secured notes | Assai Senior Secured Notes                  
Debt Instrument [Line Items]                  
Proceeds from senior long-term debt         $ 127,400,000        
Secured Promissory Notes | Secured Promissory Notes                  
Debt Instrument [Line Items]                  
Debt instrument, principal amount   $ 30,000,000              
Debt instrument term   1 year              
Secured Promissory Notes | $16.5m Secured Promissory Notes                  
Debt Instrument [Line Items]                  
Debt instrument, principal amount   $ 16,500,000              
Debt instrument, interest rate   20.00%              
Debt instrument, guaranteed minimum interest payable   $ 1,000,000              
Secured Promissory Notes | $13.5m Secured Promissory Notes                  
Debt Instrument [Line Items]                  
Debt instrument, principal amount   $ 13,500,000              
Debt instrument, interest rate   7.50%              
Secured Promissory Notes | Noble Guaranty                  
Debt Instrument [Line Items]                  
Debt instrument, interest rate                 20.00%
Short-term debt $ 3,200,000                
Loans | Paycheck Protection Program                  
Debt Instrument [Line Items]                  
Proceeds from loan           200,000      
Interest payable           0      
Loans | Paycheck Protection Program | Gulf Coast Environmental Systems, LLC ("GCES")                  
Debt Instrument [Line Items]                  
Proceeds from loan           500,000      
Notes payable | Aria Energy LLC                  
Debt Instrument [Line Items]                  
Debt instrument, principal amount     $ 102,800,000            
Long-term debt outstanding     122,600,000     $ 102,831,000      
Unpaid interest     $ 19,800,000