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Share-Based Compensation - Summary of Key Terms and Conditions of Share-Based Compensation Based on Share Warrants (Details)
12 Months Ended
Dec. 31, 2022
shares
Dec. 31, 2021
shares
Dec. 31, 2019
€ / shares
Dec. 31, 2017
€ / shares
Dec. 31, 2020
shares
Disclosure of terms and conditions of share-based payment arrangement [line items]          
Total number of BSAAR subscribed (in shares) | shares 35,070 71,760     71,760
Total number of BSAAR voided (in shares) | shares 36,690 0      
B S A2017 A [Member]          
Disclosure of terms and conditions of share-based payment arrangement [line items]          
Total number of BSAAR subscribed (in shares) | shares 0 18,345     18,345
Total number of BSAAR voided (in shares) | shares 18,345 0      
Issue price (in EUR per share)       € 2.00  
Excercise price (in EUR per share)       19.97  
Estimated fair value - according to IFRS 2 (in EUR per share)       € 3.78  
End of exercise period       6/30/2022  
Expected dividends       0.00%  
Expected volatility       36.40%  
Risk-free interest rate       0.00%  
Conversion ratio       1:1  
B S A2017 B [Member]          
Disclosure of terms and conditions of share-based payment arrangement [line items]          
Total number of BSAAR subscribed (in shares) | shares 0 18,345     18,345
Total number of BSAAR voided (in shares) | shares 18,345 0      
Issue price (in EUR per share)       € 2.00  
Excercise price (in EUR per share)       19.97  
Estimated fair value - according to IFRS 2 (in EUR per share)       € 3.81  
End of exercise period       7/15/2022  
Expected dividends       0.00%  
Expected volatility       35.70%  
Risk-free interest rate       0.00%  
Conversion ratio       1:1  
B S A2019 [Member]          
Disclosure of terms and conditions of share-based payment arrangement [line items]          
Total number of BSAAR subscribed (in shares) | shares 35,070 35,070     35,070
Total number of BSAAR voided (in shares) | shares 0 0      
Issue price (in EUR per share)     € 1.23    
Excercise price (in EUR per share)     12.32    
Estimated fair value - according to IFRS 2 (in EUR per share)     € 0.75    
End of exercise period     5/31/2024    
Expected dividends     0.00%    
Expected volatility     40.00%    
Risk-free interest rate     0.00%    
Conversion ratio     1:1