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

Borrowings - Summary of Breakdown of Borrowings (Parenthetical) (Detail)

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Borrowings - Summary of Breakdown of Borrowings (Parenthetical) (Detail) - EUR (€)
€ in Thousands
12 Months Ended
Dec. 31, 2021
Jun. 30, 2022
Dec. 31, 2020
Disclosure of detailed information about borrowings [line items]      
Euribor Floored Rate 0.00%    
Borrowings € 213,128   € 159,610
Shareholder Loans [Member]      
Disclosure of detailed information about borrowings [line items]      
Borrowings, interest rate 9.00%    
Borrowings, maturity 2035    
Borrowings € 100,193   92,031
Top of range [member] | Shareholder Loans [Member]      
Disclosure of detailed information about borrowings [line items]      
Borrowings, maturity November 30, 2035    
Borrowings [Member]      
Disclosure of detailed information about borrowings [line items]      
Borrowings, interest rate   5.00%  
Borrowings [Member] | Shareholder Loans [Member]      
Disclosure of detailed information about borrowings [line items]      
Borrowings € 8,129   € 7,853
Borrowings [Member] | Top of range [member]      
Disclosure of detailed information about borrowings [line items]      
Borrowings, interest rate   0.25%