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, 2024
Dec. 31, 2023
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value € 103,738 € 78,420
Financial liabilities, fair value 4,062 508
Current financial liabilities - derivatives    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial liabilities, fair value 3,420 20
Non-current financial liabilities - derivatives    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial liabilities, fair value 642 488
Level 1    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value 98,994 69,842
Level 2    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value 711 4,959
Financial liabilities, fair value 4,062 508
Level 2 | Current financial liabilities - derivatives    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial liabilities, fair value 3,420 20
Level 2 | Non-current financial liabilities - derivatives    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial liabilities, fair value 642 488
Level 3    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value 4,033 3,618
Cash and Cash Equivalents    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value 98,270 69,602
Cash and Cash Equivalents | Level 1    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value 98,270 69,602
Financial Assets - Investments FVTPL - Traded    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value 106 240
Financial Assets - Investments FVTPL - Traded | Level 1    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value 106 240
Financial Assets - Investments FVTPL - Not Traded    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value 95 436
Financial Assets - Investments FVTPL - Not Traded | Level 3    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value 95 436
Non-current financial assets - derivatives    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value   577
Non-current financial assets - derivatives | Level 2    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value   577
Current financial assets - derivatives    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value 711 3,633
Current financial assets - derivatives | Level 2    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value 711 3,633
Current financial assets - interests receivable    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value 618  
Current financial assets - interests receivable | Level 1    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value 618  
Other Current Financial Assets    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value   749
Other Current Financial Assets | Level 2    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value   749
Non-current secured notes at FVTPL    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value 3,938 3,182
Non-current secured notes at FVTPL | Level 3    
Disclosure Of Fair Value Measurement Of Assets [Line Items]    
Financial assets, fair value € 3,938 € 3,182