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

Significant accounting policies - Additional Information (Detail)

v3.22.1
Significant accounting policies - Additional Information (Detail)
€ in Thousands, $ in Thousands
12 Months Ended
Mar. 16, 2022
EUR (€)
Mar. 16, 2022
USD ($)
May 27, 2019
EUR (€)
Dec. 31, 2021
EUR (€)
Dec. 31, 2020
EUR (€)
Dec. 31, 2019
EUR (€)
Mar. 31, 2022
EUR (€)
Dec. 31, 2018
EUR (€)
Disclosure Of Significant Accounting Policies [Line Items]                
Equity       € (76,652) € (73,744) € (37,596)   € (584)
Cash and cash equivalents       24,652 8,274 21,277   € 1,211
Borrowings       213,128 159,610      
Proceeds from borrowings       44,315 € 38,339 € 86,020    
Notional amount       120,000        
Major business combination [member]                
Disclosure Of Significant Accounting Policies [Line Items]                
Proceeds from the merger € 146,000              
Original expected proceeds from merger 635 $ 702            
Combined Company [Member] | Major business combination [member]                
Disclosure Of Significant Accounting Policies [Line Items]                
Cash and cash equivalents             € 75,105  
Business combination agreement gross proceeds received € 146,000 $ 161,000            
Senior Debt Bank Facility [Member]                
Disclosure Of Significant Accounting Policies [Line Items]                
Proceeds from borrowings       € 44,315        
Notional amount     € 120,000          
Borrowings, maturity     May 2026          
Shareholder Loans [Member]                
Disclosure Of Significant Accounting Policies [Line Items]                
Borrowings, maturity       2035