v3.26.1
Financial Instruments and Fair Value Measurements - Netting of Certain Financial Liabilities (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Securities loaned    
Gross Amounts of Recognized Liabilities $ 4,089,659 $ 3,477,831
Amounts Offset in the Condensed Consolidated Statements of Financial Condition 0 0
Net Amounts of Assets Presented in the Condensed Consolidated Statements of Financial Condition 4,089,659 3,477,831
Amounts Not Offset in the Condensed Consolidated Statements of Financial Condition    
Financial Instrument Collateral (4,033,807) (3,382,370)
Counterparty Netting/ Cash Collateral (41,486) (67,690)
Net Amount  14,366 27,771
Securities sold under agreements to repurchase    
Gross Amounts of Recognized Liabilities 2,620,126 1,405,639
Amounts Offset in the Condensed Consolidated Statements of Financial Condition 0 0
Net Amounts of Assets Presented in the Condensed Consolidated Statements of Financial Condition 2,620,126 1,405,639
Amounts Not Offset in the Condensed Consolidated Statements of Financial Condition    
Financial Instrument Collateral (2,617,247) (1,404,924)
Counterparty Netting/ Cash Collateral 0 0
Net Amount 2,879 715
Total    
Gross Amounts of Recognized Liabilities 7,170,671 5,298,925
Amounts Offset in the Condensed Consolidated Statements of Financial Condition (442,864) (198,463)
Net Amounts of Assets Presented in the Condensed Consolidated Statements of Financial Condition 6,727,807 5,100,462
Amounts Not Offset in the Condensed Consolidated Statements of Financial Condition    
Financial Instrument Collateral (6,651,054) (4,787,294)
Counterparty Netting/ Cash Collateral (59,070) (164,398)
Net Amount  17,683 148,770
Interest rate swap    
Trading liabilities, at fair value:    
Gross Amounts of Recognized Liabilities   0
Amounts Offset in the Condensed Consolidated Statements of Financial Condition   0
Net Amounts of Assets Presented in the Condensed Consolidated Statements of Financial Condition   0
Amounts Not Offset in the Condensed Consolidated Statements of Financial Condition    
Financial Instrument Collateral   0
Counterparty Netting/ Cash Collateral   0
Net Amount    0
Currency forwards    
Trading liabilities, at fair value:    
Gross Amounts of Recognized Liabilities 442,864 198,463
Amounts Offset in the Condensed Consolidated Statements of Financial Condition (442,864) (198,463)
Net Amounts of Assets Presented in the Condensed Consolidated Statements of Financial Condition 0 0
Amounts Not Offset in the Condensed Consolidated Statements of Financial Condition    
Financial Instrument Collateral 0 0
Counterparty Netting/ Cash Collateral 0 0
Net Amount  0 0
Options    
Trading liabilities, at fair value:    
Gross Amounts of Recognized Liabilities 18,022 216,992
Amounts Offset in the Condensed Consolidated Statements of Financial Condition 0 0
Net Amounts of Assets Presented in the Condensed Consolidated Statements of Financial Condition 18,022 216,992
Amounts Not Offset in the Condensed Consolidated Statements of Financial Condition    
Financial Instrument Collateral 0 0
Counterparty Netting/ Cash Collateral (17,584) (96,708)
Net Amount  $ 438 $ 120,284