v3.24.4
Fair Value Measurement - Schedule of Fair Value and Fair Value Hierarchy of Loans and Borrowings Carried at Amortized Cost (Details) - Level 2 - EUR (€)
€ in Thousands
Sep. 30, 2024
Sep. 30, 2023
Vendor Loan    
Disclosure of fair value measurement of liabilities [line items]    
Nominal value € 208,305 € 299,560
Senior Notes    
Disclosure of fair value measurement of liabilities [line items]    
Nominal value 428,500 428,500
EUR | Original Term Loan    
Disclosure of fair value measurement of liabilities [line items]    
Nominal value   375,000
EUR | New Term Loan    
Disclosure of fair value measurement of liabilities [line items]    
Nominal value 375,000  
USD | Original Term Loan    
Disclosure of fair value measurement of liabilities [line items]    
Nominal value   781,315
USD | New Term Loan    
Disclosure of fair value measurement of liabilities [line items]    
Nominal value 160,772  
Fair Value | Vendor Loan    
Disclosure of fair value measurement of liabilities [line items]    
Loans and borrowings 216,322 235,687
Fair Value | Senior Notes    
Disclosure of fair value measurement of liabilities [line items]    
Loans and borrowings 449,533 373,682
Fair Value | EUR | Original Term Loan    
Disclosure of fair value measurement of liabilities [line items]    
Loans and borrowings   348,426
Fair Value | EUR | New Term Loan    
Disclosure of fair value measurement of liabilities [line items]    
Loans and borrowings 396,560  
Fair Value | USD | Original Term Loan    
Disclosure of fair value measurement of liabilities [line items]    
Loans and borrowings   694,889
Fair Value | USD | New Term Loan    
Disclosure of fair value measurement of liabilities [line items]    
Loans and borrowings 169,363  
Carrying Value | Vendor Loan    
Disclosure of fair value measurement of liabilities [line items]    
Loans and borrowings 212,121 305,048
Carrying Value | Senior Notes    
Disclosure of fair value measurement of liabilities [line items]    
Loans and borrowings 446,739 448,434
Carrying Value | EUR | Original Term Loan    
Disclosure of fair value measurement of liabilities [line items]    
Loans and borrowings   368,701
Carrying Value | EUR | New Term Loan    
Disclosure of fair value measurement of liabilities [line items]    
Loans and borrowings 375,905  
Carrying Value | USD | Original Term Loan    
Disclosure of fair value measurement of liabilities [line items]    
Loans and borrowings   € 730,855
Carrying Value | USD | New Term Loan    
Disclosure of fair value measurement of liabilities [line items]    
Loans and borrowings € 159,870