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

Share capital, share premium and transaction costs on new equity instruments - Additional Information (Detail)

v3.22.1
Share capital, share premium and transaction costs on new equity instruments - Additional Information (Detail) - EUR (€)
€ / shares in Units, € in Thousands
12 Months Ended
Jul. 28, 2021
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
May 13, 2019
Share Capital, Share Premium and Transaction Costs On New Equity Instruments [Line Items]          
Issued capital   € 1 € 1    
Share premium   € 61,888 36,947   € 6,089
Percentage of voting equity interests acquired   100.00%      
New equity instruments transaction costs   € 1,059 0 € 0  
Mega-E          
Share Capital, Share Premium and Transaction Costs On New Equity Instruments [Line Items]          
Issued capital       € 100  
Share premium € 0 0      
Gain loss on fair value of options € 26,000 1,200      
Percentage of voting equity interests acquired 100.00%        
Ordinary shares [member]          
Share Capital, Share Premium and Transaction Costs On New Equity Instruments [Line Items]          
Issued capital   € 100 € 100    
Number of shares outstanding   100      
Par value per share   € 1