Financing Arrangements - Schedule of Line of Credit Facilities (Details) - Secured Debt - AAM 24-1 Third NPA with Institutional Investors - Line of Credit - USD ($) $ in Millions	May 30, 2027	Jan. 30, 2027	Sep. 30, 2026	May 30, 2026	Jan. 30, 2026	Sep. 30, 2025	May 30, 2025
Debt Instrument [Line Items]
Line of credit facility, periodic payment							$ 10.0
Forecast
Debt Instrument [Line Items]
Line of credit facility, periodic payment	$ 10.0	$ 10.0	$ 10.0	$ 10.0	$ 10.0	$ 10.0