Variable Interest Entities ("VIEs") (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Variable Interest Entities
Carrying amount of investments in partially owned entities	$ 1,965,901	$ 2,691,478
Other assets	394,414	373,454
Assets	15,747,098	15,998,608
Total liabilities	8,729,501	9,826,739
Unconsolidated VIEs
Variable Interest Entities
Carrying amount of investments in partially owned entities	268,487	261,443
Other assets	101,609	52,530
Guarantor obligations, maximum exposure, undiscounted	373,096	316,973
Consolidated VIEs
Variable Interest Entities
Assets	4,767,919	4,804,481
Total liabilities	$ 2,757,858	$ 2,738,539