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

Revenue from contracts with customers - Summary of the Transaction Price Allocated to the Remaining Performance Obligations (Detail)

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Revenue from contracts with customers - Summary of the Transaction Price Allocated to the Remaining Performance Obligations (Detail) - EUR (€)
€ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Disclosure of performance obligations [line items]    
Transaction price allocated to remaining performance obligations € 18,453 € 32,700
Service revenue from the sale of charging equipment    
Disclosure of performance obligations [line items]    
Transaction price allocated to unsatisfied performance obligations 84.00%  
Charging sessions    
Disclosure of performance obligations [line items]    
Transaction price allocated to unsatisfied performance obligations 16.00%  
Within one year    
Disclosure of performance obligations [line items]    
Transaction price allocated to remaining performance obligations € 14,062 24,791
More than one year    
Disclosure of performance obligations [line items]    
Transaction price allocated to remaining performance obligations € 4,391 € 7,909
Transaction price allocated to unsatisfied performance obligations 76.00%  
Later than two years and not later than three years    
Disclosure of performance obligations [line items]    
Transaction price allocated to unsatisfied performance obligations 24.00%