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Basis Of Presentation | 3 Months Ended
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Dec. 31, 2025
Accounting Policies [Abstract] |
Basis Of Presentation | BASIS OF PRESENTATION TFS Financial Corporation, a federally chartered stock holding company, conducts its principal activities through its wholly owned subsidiaries. The principal line of business of the Company is retail consumer banking, including mortgage lending, deposit gathering, and other financial services. As of December 31, 2025, approximately 80.9% of the Company’s outstanding shares were owned by the federally chartered mutual holding company, Third Federal Savings, MHC. The thrift subsidiary of TFS Financial Corporation is Third Federal Savings and Loan Association of Cleveland. The accounting and financial reporting policies followed by the Company conform in all material respects to U.S. GAAP and to general practices in the financial services industry. The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements. Actual results could differ from those estimates. The allowance for credit losses, the valuation of deferred tax assets, and the determination of pension obligations are particularly subject to change. The unaudited interim consolidated financial statements reflect all adjustments of a normal recurring nature which, in the opinion of management, are necessary to present fairly the consolidated financial condition of the Company at December 31, 2025, and its consolidated results of operations and cash flows for the periods presented. Such adjustments are the only adjustments reflected in the unaudited interim financial statements. In accordance with SEC Regulation S-X for interim financial information, these financial statements do not include certain information and footnote disclosures required for complete audited financial statements. The Company’s Annual Report on Form 10-K for the fiscal year ended September 30, 2025, contains audited consolidated financial statements and related notes, which should be read in conjunction with the accompanying interim consolidated financial statements. The results of operations for the interim periods disclosed herein are not necessarily indicative of the results that may be expected for the fiscal year ending September 30, 2026, or for any other period. Per ASC 606, Revenue from Contracts with Customers, an entity is required to recognize revenue to depict the transfer of goods or services to customers in an amount that reflects the consideration the entity expects to receive in exchange for those goods or services. Three of the Company's revenue streams within scope of Topic 606 are the sales of REO, interchange income, and deposit account and other transaction-based service fee income. Those streams are not material to the Company's consolidated financial statements and therefore quantitative information regarding these streams is not disclosed. The Company operates as a single reportable segment that derives revenues primarily from providing residential mortgage loans and deposit products to customers in the United States. The Company's CODM is the CEO, who regularly assesses performance on a consolidated basis and decides how to allocate resources based on net income as reported in the Company's CONSOLIDATED STATEMENTS OF INCOME. The CODM uses net income to evaluate income generated from segment assets (return on assets), compare performance to peer banks and monitor budget-to-actual results. The CODM is also regularly provided with, and reviews, expense information at a level consistent with that disclosed in the Company's consolidated financial statements, including its significant expense categories, such as interest expense, provisions for credit losses, salaries, employee benefits and marketing expense. As the Company consists of one reportable segment, the segment assets are reflected on the CONSOLIDATED STATEMENTS OF CONDITION as "total assets".

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- Definition The entire disclosure for the organization, consolidation and basis of presentation of financial statements disclosure, and significant accounting policies of the reporting entity. May be provided in more than one note to the financial statements, as long as users are provided with an understanding of (1) the significant judgments and assumptions made by an enterprise in determining whether it must consolidate a VIE and/or disclose information about its involvement with a VIE, (2) the nature of restrictions on a consolidated VIE's assets reported by an enterprise in its statement of financial position, including the carrying amounts of such assets, (3) the nature of, and changes in, the risks associated with an enterprise's involvement with the VIE, and (4) how an enterprise's involvement with the VIE affects the enterprise's financial position, financial performance, and cash flows. Describes procedure if disclosures are provided in more than one note to the financial statements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483426/235-10-50-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 810 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/810/tableOfContent Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 205 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/205/tableOfContent + Details
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