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Collateralized transactions (Tables) | 12 Months Ended
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Dec. 31, 2024
Broker-Dealer [Abstract] |
Schedule of Transfer of Certain Financial Assets Accounted for as Secured Borrowings | The following table presents a disaggregation of the gross obligation by the class of collateral pledged and the remaining contractual maturity of the repurchase agreements and securities loaned transactions as of December 31, 2024:
(Expressed in thousands) |
| Overnight and Open
Repurchase agreements: |
U.S. Treasury securities | $ | 999,809 |
Securities loaned: |
Equity securities | 235,498 |
Gross amount of recognized liabilities for repurchase agreements and securities loaned | $ | 1,235,307 |
Schedule of Gross Amounts and Offsetting Amounts of Reverse Repurchase Agreements, Repurchase Agreements, Securities Borrowed and Securities Lending Transactions | The following tables present the gross amounts and the offsetting amounts of reverse repurchase agreements, repurchase agreements, securities borrowed and securities loaned transactions as of December 31, 2024 and 2023:
As of December 31, 2024
(Expressed in thousands) |  |  |  |  |  |  |  |  |  |  |
|  |  |  |  |  |  | Gross Amounts Not Offset on the Balance Sheet |  |
| Gross Amounts of Recognized Assets |  | Gross Amounts Offset on the Balance Sheet |  | Net Amounts of Assets Presented on the Balance Sheet |  | Financial Instruments |  | Cash Collateral Received |  | Net Amount
Reverse repurchase agreements | $ | 68,055 |  |  | $ | (68,055) |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Securities borrowed (1) | 137,177 |  |  | — |  |  | 137,177 |  |  | (130,568) |  |  | — |  |  | 6,609 |
Total | $ | 205,232 |  |  | $ | (68,055) |  |  | $ | 137,177 |  |  | $ | (130,568) |  |  | $ | — |  |  | $ | 6,609 |
(1) Included in receivable from brokers, dealers and clearing organizations on the consolidated balance sheet.
|  |  |  |  |  |  | Gross Amounts Not Offset on the Balance Sheet |  |
| Gross Amounts of Recognized Liabilities |  | Gross Amounts Offset on the Balance Sheet |  | Net Amounts of Liabilities Presented on the Balance Sheet |  | Financial Instruments |  | Cash Collateral Pledged |  | Net Amount
Repurchase agreements | $ | 999,809 |  |  | $ | (68,055) |  |  | $ | 931,754 |  |  | $ | (931,754) |  |  | $ | — |  |  | $ | — |
Securities loaned (2) | 235,498 |  |  | — |  |  | 235,498 |  |  | (229,156) |  |  | — |  |  | 6,342 |
Total | $ | 1,235,307 |  |  | $ | (68,055) |  |  | $ | 1,167,252 |  |  | $ | (1,160,910) |  |  | $ | — |  |  | $ | 6,342 |
(2) Included in payable to brokers, dealers and clearing organizations on the consolidated balance sheet.
As of December 31, 2023
(Expressed in thousands) |  |  |  |  |  |  |  |  |  |  |
|  |  |  |  |  |  | Gross Amounts Not Offset on the Balance Sheet |  |
| Gross Amounts of Recognized Assets |  | Gross Amounts Offset on the Balance Sheet |  | Net Amounts of Assets Presented on the Balance Sheet |  | Financial Instruments |  | Cash Collateral Received |  | Net Amount
Reverse repurchase agreements | $ | 8,870 |  |  | $ | (3,028) |  |  | $ | 5,842 |  |  | $ | — |  |  | $ | — |  |  | $ | 5,842 |
Securities borrowed (1) | 158,612 |  |  | — |  |  | 158,612 |  |  | (149,946) |  |  | — |  |  | 8,666 |
Total | $ | 167,482 |  |  | $ | (3,028) |  |  | $ | 164,454 |  |  | $ | (149,946) |  |  | $ | — |  |  | $ | 14,508 |
1) Included in receivable from brokers, dealers and clearing organizations on the consolidated balance sheet.
|  |  |  |  |  |  | Gross Amounts Not Offset on the Balance Sheet |  |
| Gross Amounts of Recognized Liabilities |  | Gross Amounts Offset on the Balance Sheet |  | Net Amounts of Liabilities Presented on the Balance Sheet |  | Financial Instruments |  | Cash Collateral Pledged |  | Net Amount
Repurchase agreements | $ | 643,410 |  |  | $ | (3,028) |  |  | $ | 640,382 |  |  | $ | (632,521) |  |  | $ | — |  |  | $ | 7,861 |
Securities loaned (2) | 284,987 |  |  | — |  |  | 284,987 |  |  | (276,688) |  |  | — |  |  | 8,299 |
Total | $ | 928,397 |  |  | $ | (3,028) |  |  | $ | 925,369 |  |  | $ | (909,209) |  |  | $ | — |  |  | $ | 16,160 |
(2) Included in payable to brokers, dealers and clearing organizations on the consolidated balance sheet.

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- Definition Offsetting securities purchased under agreements to resell securities borrowed securities sold under agreements to repurchase securities loaned. + References No definition available. + Details
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- References No definition available. + Details
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- Definition Tabular disclosure of the nature and risks of short-term collateralized financing obtained through repurchase agreements, securities lending transactions and repurchase-to-maturity transactions, accounted for as secured borrowings. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 860 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481420/860-30-50-7 + Details
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