Loans and Borrowings - Additional Information (Details) € in Millions, $ in Millions				3 Months Ended	9 Months Ended
	May 28, 2024 EUR (€)	Oct. 13, 2023 EUR (€)	Oct. 13, 2023 USD ($)	Jun. 30, 2024 EUR (€)	Jun. 30, 2024 EUR (€)	Jun. 30, 2024 USD ($)	May 28, 2024 USD ($)
Birkenstock Limited Partner S.a.r.l
Disclosure of detailed information about borrowings [line items]
Loan of credit facility	€ 375.0
Effective date of the transaction	Aug. 02, 2024
USD \| Minimum \| Birkenstock Limited Partner S.a.r.l
Disclosure of detailed information about borrowings [line items]
Interest rate	1.90%						1.90%
USD \| Maximum \| Birkenstock Limited Partner S.a.r.l
Disclosure of detailed information about borrowings [line items]
Interest rate	2.90%						2.90%
EUR \| Minimum \| Birkenstock Limited Partner S.a.r.l
Disclosure of detailed information about borrowings [line items]
Interest rate	1.60%						1.60%
EUR \| Maximum \| Birkenstock Limited Partner S.a.r.l
Disclosure of detailed information about borrowings [line items]
Interest rate	2.60%						2.60%
Ordinary Shares
Disclosure of detailed information about borrowings [line items]
Early repayment of borrowings		€ 100.0			€ 100.0
USD Term Loan
Disclosure of detailed information about borrowings [line items]
Redemption payment \| $						$ 450.0
USD Term Loan \| USD \| Birkenstock Limited Partner S.a.r.l
Disclosure of detailed information about borrowings [line items]
Loan of credit facility \| $							$ 280.0
USD Term Loan \| Ordinary Shares
Disclosure of detailed information about borrowings [line items]
Early repayment of borrowings \| $			$ 450.0
Revolving Credit Facility \| EUR \| Birkenstock Limited Partner S.a.r.l
Disclosure of detailed information about borrowings [line items]
Loan of credit facility	€ 225.0
Asset-based Lending Facility \| USD Term Loan \| Birkenstock Limited Partner S.a.r.l
Disclosure of detailed information about borrowings [line items]
Maturity date	February 28, 2029
Amortized transaction cost				€ 17.3