Annual and transition report of foreign private issuers [Sections 13 or 15(d)]

Fair Value Measurement - Summary of Fair Value Hierarchy for Financial Assets and Liabilities that are Measured at Fair Value on Recurring Basis (Details)

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Fair Value Measurement - Summary of Fair Value Hierarchy for Financial Assets and Liabilities that are Measured at Fair Value on Recurring Basis (Details) - Fair Value Measurements on Recurring Basis - EUR (€)
€ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value € 6,660 € 4,850
Financial liabilities, fair value 800 4,062
Current financial liabilities - derivatives    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial liabilities, fair value 592 3,420
Non-current financial liabilities - derivatives    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial liabilities, fair value 208 642
Level 1    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value 92 106
Level 2    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value 2,281 711
Financial liabilities, fair value 800 4,062
Level 2 | Current financial liabilities - derivatives    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial liabilities, fair value 592 3,420
Level 2 | Non-current financial liabilities - derivatives    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial liabilities, fair value 208 642
Level 3    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value 4,287 4,033
Financial Assets - Investments FVTPL - Traded    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value 92 106
Financial Assets - Investments FVTPL - Traded | Level 1    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value 92 106
Financial Assets - Investments FVTPL - Not Traded    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value 79 95
Financial Assets - Investments FVTPL - Not Traded | Level 3    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value 79 95
Non-current financial assets - derivatives    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value 340  
Non-current financial assets - derivatives | Level 2    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value 340  
Current financial assets - derivatives    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value 1,941 711
Current financial assets - derivatives | Level 2    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value 1,941 711
Non-current secured notes at FVTPL    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value 4,208 3,938
Non-current secured notes at FVTPL | Level 3    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value € 4,208 € 3,938