Quarterly report pursuant to Section 13 or 15(d)

Available-for-Sale Securities, at Fair Value - Narrative (Details)

v3.24.3
Available-for-Sale Securities, at Fair Value - Narrative (Details)
$ in Thousands
Sep. 30, 2024
USD ($)
numberOfPositions
Dec. 31, 2023
USD ($)
numberOfPositions
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]    
Total available-for-sale securities $ 8,506,102 $ 8,327,149
Debt securities, available-for-sale, number of positions | numberOfPositions 645 646
Debt securities, available-for-sale, continuous unrealized loss position, less than 12 months, number of positions | numberOfPositions 6 477
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer, number of positions | numberOfPositions 373 0
Variable Interest Entity, Not Primary Beneficiary    
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]    
Total available-for-sale securities $ 3,900 $ 4,200
Maximum exposure to loss of nonconsolidated Variable Interest Entities 3,900 4,200
Asset Pledged as Collateral    
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]    
Total available-for-sale securities $ 8,400,000 $ 8,100,000