Commitments and Contingencies (Details) - USD ($) |
Apr. 24, 2026 |
Jun. 30, 2026 |
Jun. 08, 2026 |
Dec. 31, 2025 |
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| Loss Contingencies [Line Items] | ||||
| Contractual obligation | $ 700,000 | |||
| Outstanding letters of credit | 0 | |||
| Estimated range of loss in excess of amounts accrued | 3,000,000 | |||
| Litigation accrual | 70,000,000 | |||
| Liberty Capital Group, Individually and on Behalf of All Others Similarly Situated v. Oppenheimer Holdings Inc., Oppenheimer & Co. Inc., and Oppenheimer Asset Management Inc. | ||||
| Loss Contingencies [Line Items] | ||||
| Litigation settlement amount awarded to other party | $ 70,000,000 | |||
| Litigation accrual | $ 70,000,000 | |||
| Operating Lease, Lease Not yet Commenced | ||||
| Loss Contingencies [Line Items] | ||||
| Lease not yet commenced, amount | $ 11,300,000 | $ 9,500,000 |
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- Definition Amount of contractual obligation, including, but not limited to, long-term debt, lease obligation, purchase obligation, and other commitments. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount awarded to other party in judgment or settlement of litigation. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of loss contingency liability. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The difference between the maximum amount of estimated loss and the amount recorded as of the balance sheet date. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of unrecorded obligation to transfer funds in future for fixed or minimum amount or quantity of product and service at fixed or minimum price. Includes, but is not limited to, lease not yet commenced and take-or-pay and throughput contracts. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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