Background and Basis of Presentation (Policies)	12 Months Ended
	Sep. 30, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of accounting	The accompanying Consolidated Financial Statements include the accounts of the Company and its controlled subsidiaries and have been prepared in accordance with United States (“U.S.”) generally accepted accounting principles (“GAAP”) under the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”).
Use of estimates	The preparation of the Consolidated Financial Statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amount of assets and liabilities, disclosure of contingent assets and liabilities and the reported amounts of revenues and expenses. Actual results may differ materially from those estimates.
Consolidation	All intercompany balances and transactions have been eliminated in consolidation and, in the opinion of management, all normal recurring adjustments considered necessary for a fair presentation have been included.