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Basis of presentation (Policies) | 9 Months Ended
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Sep. 30, 2025
Basis of presentation [Abstract] |
Basis of presentation | Basis of Presentation The (unaudited) interim Consolidated Financial Statements are, in the opinion of management, a fair statement of the results for the periods reported. The consolidated statement of financial condition presented as of December 31, 2024 was derived from audited Consolidated Financial Statements of the Corporation for the year ended December 31, 2024. Certain information and notes to the financial statements disclosures which would normally be included in financial statements prepared in accordance with Accounting Principles Generally Accepted in the United States of America (U.S. GAAP), have been condensed or omitted from the unaudited financial statements pursuant to the rules and regulations of the Securities and Exchange Commission. Accordingly, these financial statements should be read in conjunction with the audited Consolidated Financial Statements of the Corporation for the year ended December 31, 2024, included in the 2024 Form 10-K. Operating results for the interim periods disclosed herein are not necessarily indicative of the results that may be expected for a full year or any future period.
Use of estimates in the preparation of financial statements | Use of Estimates in the Preparation of Financial Statements The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

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