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Debt - Narrative (Details)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
May 24, 2024
USD ($)
May 01, 2024
day
$ / shares
Mar. 27, 2024
USD ($)
note
May 31, 2024
USD ($)
$ / shares
May 31, 2024
USD ($)
note
$ / shares
shares
Feb. 28, 2024
USD ($)
Feb. 08, 2024
USD ($)
May 31, 2023
USD ($)
Feb. 16, 2023
USD ($)
Nov. 07, 2022
USD ($)
Jul. 25, 2022
USD ($)
Debt Instrument [Line Items]                      
Restricted cash       $ 28,300 $ 28,300            
Medium-term Notes                      
Debt Instrument [Line Items]                      
Deferred costs       $ 501 $ 501     $ 1,770      
Starion Term Loan | Medium-term Notes                      
Debt Instrument [Line Items]                      
Promissory note amount                     $ 15,000
Interest rate       6.50% 6.50%           6.50%
Other long-term debt       $ 10,021 $ 10,021     12,786      
Vantage Garden City Loan | Medium-term Notes                      
Debt Instrument [Line Items]                      
Promissory note amount                   $ 15,000  
Interest rate       6.15% 6.15%         6.15%  
Extinguishment of debt       $ 12,800              
Other long-term debt       $ 0 $ 0     10,074      
Starion Ellendale Loan | Medium-term Notes                      
Debt Instrument [Line Items]                      
Promissory note amount                 $ 20,000    
Interest rate       7.48% 7.48%       7.48%    
Deferred costs       $ 100 $ 100            
Other long-term debt       $ 16,145 $ 16,145     19,728      
Vantage Transformer Loan | Medium-term Notes                      
Debt Instrument [Line Items]                      
Promissory note amount             $ 3,700        
Interest rate       6.50% 6.50%   6.50%        
Other long-term debt       $ 3,609 $ 3,609     0      
Cornerstone Bank Loan | Medium-term Notes                      
Debt Instrument [Line Items]                      
Promissory note amount           $ 16,000          
Interest rate       8.59% 8.59% 8.59%          
Other long-term debt       $ 15,576 $ 15,576     0      
Yorkville Convertible Debt                      
Debt Instrument [Line Items]                      
Conversion price (in dollars per share) | $ / shares       $ 4.01 $ 4.01            
Debt conversion, converted instrument, shares issued (in shares) | shares         18,969,939            
Yorkville Convertible Debt | Convertible Debt                      
Debt Instrument [Line Items]                      
Promissory note amount $ 42,100   $ 50,000                
Interest rate     0.00% 0.00% 0.00%            
Other long-term debt       $ 80,243 $ 80,243     $ 0      
Debt instrument, redemption price, discount percentage 5.00%   5.00%                
Unsecured promissory notes | note     2                
Conversion price (in dollars per share) | $ / shares   $ 6.00                  
Debt discount percentage   95.00%     5.00%            
Trading days   5     5            
Floor price (in dollars per share) | $ / shares   $ 3.00                  
Converted amount         $ 16,000            
Debt conversion, converted instrument, shares issued (in shares) | shares         4,800,000            
Interest rate, covenant compliance     18.00%                
Debt issuance and discount costs       $ 7,700 $ 7,700            
Yorkville Convertible Debt | Convertible Debt | Debt Instrument, Redemption, Period Three                      
Debt Instrument [Line Items]                      
Conversion price (in dollars per share) | $ / shares   $ 8.00