Variable Interest Entities - Nonconsolidated VIEs (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Variable Interest Entity [Line Items]
Asset	$ 14,466,384	$ 10,583,241
Liability	13,061,028	8,931,814
Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Asset	59,713	43,589
Liability	0	0
Maximum Exposure to Loss	59,713	43,589
VIEs' assets	$ 273,905	$ 239,682