Retirement Plan And Other Post-Retirement Benefits (Narrative) (Details)	3 Months Ended
	Dec. 31, 2024 USD ($)
Retirement Plan
Defined Benefit Plan Disclosure [Line Items]
Company's contributions	$ 0
Estimated future contributions in remainder of fiscal year	0
VEBA Trusts
Defined Benefit Plan Disclosure [Line Items]
Company's contributions	0
Estimated future contributions in remainder of fiscal year	$ 0