v3.26.1
Organization and Summary of Significant Accounting Policies - Narrative (Details) - entity
Jun. 30, 2026
Sep. 30, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of VIE entities
2
2
X
- Definition
Variable Interest Entity, Number Of Entities
+ References
No definition available.
+ Details
Name:
adnt_VariableInterestEntityNumberOfEntities
Namespace Prefix:
adnt_
Data Type:
xbrli:integerItemType
Balance Type:
na
Period Type:
instant
X
- References
No definition available.
+ Details
Name:
us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
Namespace Prefix:
us-gaap_
Data Type:
xbrli:stringItemType
Balance Type:
na
Period Type:
duration