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

Significant accounting estimates, assumptions and judgments - Additional Information (Detail)

v3.24.1.1.u2
Significant accounting estimates, assumptions and judgments - Additional Information (Detail)
€ in Thousands
 12 Months Ended
Dec. 31, 2023
EUR (€)
warrants
performance_obligation
lease
shares
Dec. 31, 2022
EUR (€)
warrants
Dec. 31, 2021
EUR (€)
warrants
Mar. 31, 2022
type
Mar. 16, 2022
shares
Disclosure Of Significant Accounting Estimates Assumptions And Judgements [Line Items]          
Class of warrant or right, number of securities called by each warrant or right (in shares) | shares         1
Number of performance obligations | performance_obligation 2        
Number of option types | type       2  
Number of leases | lease 7        
Deferred tax assets | € € 807 € 523 € 570    
Impairments of property, plant and equipment | € 510 701 354    
Reversal of impairments | € € 635 € 679 € 381    
Goodwill | Cash Flow Period, Measurement Input | Discounted cash flow          
Disclosure Of Significant Accounting Estimates Assumptions And Judgements [Line Items]          
Unobservable input, assets 5        
Minimum          
Disclosure Of Significant Accounting Estimates Assumptions And Judgements [Line Items]          
Advance review period 18 months        
Minimum | Land permits          
Disclosure Of Significant Accounting Estimates Assumptions And Judgements [Line Items]          
Lease contractual term 1 year        
Minimum | Offices And Other Assets          
Disclosure Of Significant Accounting Estimates Assumptions And Judgements [Line Items]          
Lease contractual term 1 year        
Minimum | Cars And Software          
Disclosure Of Significant Accounting Estimates Assumptions And Judgements [Line Items]          
Lease contractual term 1 year        
Maximum          
Disclosure Of Significant Accounting Estimates Assumptions And Judgements [Line Items]          
Advance review period 24 months        
Maximum | Land permits          
Disclosure Of Significant Accounting Estimates Assumptions And Judgements [Line Items]          
Lease contractual term 15 years        
Maximum | Offices And Other Assets          
Disclosure Of Significant Accounting Estimates Assumptions And Judgements [Line Items]          
Lease contractual term 12 years        
Maximum | Cars And Software          
Disclosure Of Significant Accounting Estimates Assumptions And Judgements [Line Items]          
Lease contractual term 4 years        
Development Contracts          
Disclosure Of Significant Accounting Estimates Assumptions And Judgements [Line Items]          
Number of performance obligations | performance_obligation 2        
Operation And Maintenance Services          
Disclosure Of Significant Accounting Estimates Assumptions And Judgements [Line Items]          
Number of performance obligations | performance_obligation 2        
Computer software          
Disclosure Of Significant Accounting Estimates Assumptions And Judgements [Line Items]          
Useful life measured as period of time, intangible assets other than goodwill 3 years        
Public Warrants          
Disclosure Of Significant Accounting Estimates Assumptions And Judgements [Line Items]          
Warrants outstanding (shares) | warrants 0 13,799,948 0    
Public Warrants | Ordinary Shares          
Disclosure Of Significant Accounting Estimates Assumptions And Judgements [Line Items]          
Class of warrant or right, number of securities called by each warrant or right (in shares) | shares 1        
Private Placement Warrants          
Disclosure Of Significant Accounting Estimates Assumptions And Judgements [Line Items]          
Warrants outstanding (shares) | warrants 0 0 0