Post-effective amendment to a registration statement that is not immediately effective upon filing

Business combinations and capital reorganization - Additional Information (Detail)

v3.22.2.2
Business combinations and capital reorganization - Additional Information (Detail)
€ / shares in Units, $ / shares in Units, € in Thousands, $ in Millions
6 Months Ended 12 Months Ended
Jun. 07, 2022
EUR (€)
shares
Mar. 16, 2022
EUR (€)
€ / shares
shares
Mar. 16, 2022
USD ($)
shares
Mar. 26, 2021
EUR (€)
Jun. 30, 2022
EUR (€)
Jun. 30, 2021
EUR (€)
Dec. 31, 2021
EUR (€)
Mar. 16, 2022
USD ($)
$ / shares
Disclosure Of Business Combinations And Capital Reorganization [Line Items]                
Percentage of voting equity interests acquired       100.00%     100.00%  
Percentage of voting interest sold   100.00%           100.00%
Conversion of debt to equity   € 101,933            
Share issue related cost           € 532 € 1,059  
Capital Reorganization                
Disclosure Of Business Combinations And Capital Reorganization [Line Items]                
Conversion of stock shares converted | shares   124 124          
Conversion of stock shares issued | shares   235,935,061 235,935,061          
Exchange ratio   1,902,702 1,902,702          
Share premium [member]                
Disclosure Of Business Combinations And Capital Reorganization [Line Items]                
Share issue related cost           532 1,059  
Third Party Company [Member]                
Disclosure Of Business Combinations And Capital Reorganization [Line Items]                
Consideration transferred       € 100        
Modélisation, Mesures et Applications S.A [member]                
Disclosure Of Business Combinations And Capital Reorganization [Line Items]                
Consideration transferred € 0     € 100 € 0   3,200  
MOMA acquisition                
Disclosure Of Business Combinations And Capital Reorganization [Line Items]                
Percentage of voting equity interests acquired 100.00%              
Identifiable assets acquired (liabilities assumed) € 44,293              
Cash and cash equivalents 1,252              
Acquisition-related costs recognised as expense for transaction recognised separately from acquisition of assets and assumption of liabilities in business combination         248      
Cash consideration payable 30,000       30,000   0  
Fair value of acquired receivables 4,974              
Contingent liabilities recognised as of acquisition date 225              
Estimated financial effect of contingent liabilities € 225              
Revenue         470      
Profit for the half-year         15      
Revenue of combined entity as if combination occurred at beginning of period         53,262      
Profit (loss) of combined entity as if combination occurred at beginning of period         243,352      
Number of instruments or interests issued or issuable | shares 160,000              
Consideration transferred € 59,985              
MOMA acquisition | Trade receivables [member]                
Disclosure Of Business Combinations And Capital Reorganization [Line Items]                
Fair value of acquired receivables 4,107              
Gross contractual amounts receivable for acquired receivables 7,800              
MOMA acquisition | Other Receivables [Member]                
Disclosure Of Business Combinations And Capital Reorganization [Line Items]                
Fair value of acquired receivables 867              
Best estimate at acquisition date of contractual cash flows not expected to be collected for acquired receivables € 3,693              
MOMA acquisition | Consideration First Installment [Member]                
Disclosure Of Business Combinations And Capital Reorganization [Line Items]                
Percentage of voting equity interests acquired 50.00%              
Consideration paid (received) € 30,000              
MOMA acquisition | Consideration Second Installment [Member]                
Disclosure Of Business Combinations And Capital Reorganization [Line Items]                
Percentage of voting equity interests acquired 50.00%              
Mega-E Acquisition                
Disclosure Of Business Combinations And Capital Reorganization [Line Items]                
Identifiable assets acquired (liabilities assumed)   € 65,407            
Cash and cash equivalents   (874)            
Cash consideration payable         € 9,456   € 0  
Mega-E Acquisition | Subsidiaries [member]                
Disclosure Of Business Combinations And Capital Reorganization [Line Items]                
Proportion of ownership interest in subsidiary         100.00%      
Mega-E Acquisition | Green To Wheel SAS                
Disclosure Of Business Combinations And Capital Reorganization [Line Items]                
Proportion of ownership interest in subsidiary percentage by parent         80.00%      
Proportion of ownership interest in subsidiary percentage by non-controlling owners         20.00%      
Spartan Acquisition Corp. III [Member]                
Disclosure Of Business Combinations And Capital Reorganization [Line Items]                
Identifiable assets acquired (liabilities assumed)   (71,117)            
Cash and cash equivalents   10,079            
Receivable recognised as of acquisition date   5,185            
Warrant liabilities recognised as Of acquisition date   42,253            
Transaction costs liabilities recognized as of acquisition date   44,128            
Equity interests of acquirer   88,190            
Amounts recognised for transaction recognised separately from acquisition of assets and assumption of liabilities in business combination   159,306            
Acquisition-related costs recognised as expense for transaction recognised separately from acquisition of assets and assumption of liabilities in business combination         € 7,190 4,643    
Spartan Acquisition Corp. III [Member] | Share premium [member]                
Disclosure Of Business Combinations And Capital Reorganization [Line Items]                
Share issue related cost         € 0 € 532    
Unlisted Software Company [Member] | MOMA acquisition                
Disclosure Of Business Combinations And Capital Reorganization [Line Items]                
Percentage of remaining share capital acquired upon exercising its option rights       49.50%        
Two Option Agreement [Member] | Third Party Company [Member]                
Disclosure Of Business Combinations And Capital Reorganization [Line Items]                
Percentage of voting equity interests acquired       100.00%        
Two Option Agreement [Member] | Modélisation, Mesures et Applications S.A [member]                
Disclosure Of Business Combinations And Capital Reorganization [Line Items]                
Percentage of voting equity interests acquired       8.50%        
Two Option Agreement [Member] | Modélisation, Mesures et Applications S.A [member] | Top of range [member]                
Disclosure Of Business Combinations And Capital Reorganization [Line Items]                
Percentage of voting equity interests acquired       42.00%        
Two Option Agreement [Member] | Unlisted Software Company [Member] | Third Party Company [Member]                
Disclosure Of Business Combinations And Capital Reorganization [Line Items]                
Percentage of voting equity interests acquired       100.00%        
Two Option Agreement [Member] | Unlisted Software Company [Member] | MOMA acquisition                
Disclosure Of Business Combinations And Capital Reorganization [Line Items]                
Percentage of voting equity interests acquired       8.50%        
Two Option Agreement [Member] | Unlisted Software Company [Member] | MOMA acquisition | Top of range [member]                
Disclosure Of Business Combinations And Capital Reorganization [Line Items]                
Percentage of voting equity interests acquired       42.00%        
Two Option Agreement [Member] | Unlisted Software Company [Member] | MOMA acquisition | Third Party Company [Member]                
Disclosure Of Business Combinations And Capital Reorganization [Line Items]                
Percentage of voting equity interests acquired       100.00%        
Option Agreement [Member] | MOMA acquisition                
Disclosure Of Business Combinations And Capital Reorganization [Line Items]                
Percentage of voting equity interests acquired 100.00%              
Spartan acquisition corporation three [member]                
Disclosure Of Business Combinations And Capital Reorganization [Line Items]                
Cash held in trust   € 10,000           $ 11
Combined Company [Member]                
Disclosure Of Business Combinations And Capital Reorganization [Line Items]                
Percentage of voting equity interests acquired   100.00%           100.00%
Business combination agreement gross proceeds received   € 146,000 $ 161          
Proceeds from PIPE offering through issuance of common stock   € 136,000 $ 150          
Common stock issued price per share | (per share)   € 9.07           $ 10
Percentage of voting interest retained   82.00%           82.00%