Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Business combinations and capital reorganization - Additional Information (Details)

v3.24.1.1.u2
Business combinations and capital reorganization - Additional Information (Details)
€ / shares in Units, $ / shares in Units, € in Thousands, $ in Thousands
12 Months Ended
Mar. 16, 2022
EUR (€)
€ / shares
shares
Mar. 16, 2022
USD ($)
shares
Mar. 15, 2022
Mar. 26, 2021
agreement
Dec. 31, 2023
EUR (€)
Dec. 31, 2022
EUR (€)
Dec. 31, 2021
EUR (€)
shares
Jun. 07, 2022
EUR (€)
agreement
Mar. 16, 2022
USD ($)
$ / shares
shares
Dec. 31, 2020
EUR (€)
Disclosure of detailed information about business combination [line items]                    
Percentage of voting interest sold 100.00%               100.00%  
Conversion of debt to equity € 101,931                  
Warrant liabilities         € 0 € 1,296        
Equity contribution (Spartan shareholders) € 87,597         87,597        
Share issue related cost         0 0 € 1,059      
Transaction costs           7,190 € 6,145      
Share Capital increase on conversion (in shares) | shares 235,935,061 235,935,061                
Exchange with shares no cash contribution made (in shares) | shares 1,902,702           1,902,702   1,902,702  
Equity         (79,322) 27,758 € (76,652)     € (73,744)
Non-controlling interests         361 745        
Purchase Option To Acquire MOMA                    
Disclosure of detailed information about business combination [line items]                    
Number of option agreements entered into | agreement       2            
Mega-E                    
Disclosure of detailed information about business combination [line items]                    
Consideration transferred € 10,594                  
Equity interest issued and issuable 9,456                  
Contingent consideration 1,138                  
Mega-E Group                    
Disclosure of detailed information about business combination [line items]                    
Equity 67,034                  
Non-controlling interests 1,259                  
General and administrative expenses                    
Disclosure of detailed information about business combination [line items]                    
Share-based payment expenses 158,714       € 0 € 158,714 € 0      
Spartan                    
Disclosure of detailed information about business combination [line items]                    
Liabilities 71,117                  
MOMA                    
Disclosure of detailed information about business combination [line items]                    
Percentage of acquired       8.50%       100.00%    
Percentage of remaining share capital acquired upon exercising its option rights       49.50%            
Number of purchase and sale agreements entered into | agreement               2    
Consideration transferred               € 59,986    
Identifiable assets acquired (liabilities assumed)               49,262    
Goodwill recognised as of acquisition date               € 10,724    
Oury-Heintz Energie Applications SA (OHEA)                    
Disclosure of detailed information about business combination [line items]                    
Percentage of acquired       100.00%            
Spartan                    
Disclosure of detailed information about business combination [line items]                    
Cash held in trust 9,987               $ 11,080  
Cash and cash equivalents 10,079                  
Receivable balances 5,185                  
Warrant liabilities 42,253                  
Transaction costs capitalized € 44,128                  
Allego Holding                    
Disclosure of detailed information about business combination [line items]                    
Number of shares exchanged for shares in new company (in share) | shares 124 124                
Mega-E Group | Subsidiaries Other Than GreenToWheel                    
Disclosure of detailed information about business combination [line items]                    
Interest in subsidiaries percentage     100.00%              
Mega-E Group | GreenToWheel                    
Disclosure of detailed information about business combination [line items]                    
Interest in subsidiaries percentage     80.00%              
Proportion of ownership interests held by non-controlling interests     20.00%              
Oury-Heintz Energie Applications SA (OHEA) | Moma                    
Disclosure of detailed information about business combination [line items]                    
Interest in subsidiaries percentage       42.00%            
Combined Company                    
Disclosure of detailed information about business combination [line items]                    
Percentage of acquired 100.00%               100.00%  
Business combination agreement gross proceeds received € 146,035 $ 161,080                
Proceeds from PIPE offering through issuance of common stock € 136,048 $ 150,000                
Common stock issued price per share (in EURO and USD per share) | (per share) € 9.07               $ 10.00  
Percentage of voting interest retained 82.00%               82.00%