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Fair Value - Change in Carrying Value Associated with Contingent Payment Arrangements Level 3 Instruments (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Fair Value Disclosures [Abstract]    
Balance as of beginning of period $ 252,690 $ 247,309
Accretion 9,005 8,803
Changes in estimates (130,901) 14,050
Payments (2,640) (1,291)
Held for sale reclassification 0 (16,181)
Reclassification of AB CarVal contingent liability (118,769) 0
Balance as of end of period $ 9,385 $ 252,690