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Collateralized Transactions (Tables)
3 Months Ended
Mar. 31, 2024
Collateralized Agreements [Abstract]  
Summary of the fair value of collateralized transactions
The fair value of the collateralized transactions at March 31, 2024 and December 31, 2023 are summarized as follows:
(in thousands)March 31, 2024December 31, 2023
Securities received as collateral:
Securities borrowed$1,739,045 $1,665,860 
Securities purchased under agreements to resell502,470 1,512,114 
 $2,241,515 $3,177,974 
Schedule of financial instruments owned and pledged, where counterparty has right to repledge
Financial instruments owned and pledged, where the counterparty has the right to repledge, at March 31, 2024 and December 31, 2023 consisted of the following:

(in thousands)March 31, 2024December 31, 2023
Equities$1,441,851 $1,222,559 
Exchange traded notes7,203 8,300 
 $1,449,054 $1,230,859