Variable Interest Entities - Assets and Liabilities of Consolidated CLO (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Assets:
Cash and cash equivalents	$ 195,319	$ 261,061
Loans held-for-investment, net	17,234,205	18,401,439
Investment securities	721,593	815,804
Accrued interest receivable	173,260	168,521
Other assets	526,442	297,477
Total Assets	70,293,689	79,043,129
Liabilities
Collateralized loan obligations and single asset securitization, net	3,518,274	3,676,224
Total Liabilities	63,200,233	71,844,422
Primary Beneficiary
Assets:
Total Assets	74,800
Liabilities
Total Liabilities	34,800
CLOs and SASB | Primary Beneficiary
Assets:
Cash and cash equivalents	34,825	31,611
Investment securities	10,487	36,466
Accrued interest receivable	25,894	20,088
Other assets	8,537	131
Total Assets	4,303,188	4,454,087
Liabilities
Accounts payable, accrued expenses and other liabilities	20,382	17,737
Collateralized loan obligations and single asset securitization, net	3,518,274	3,676,224
Total Liabilities	3,538,656	3,693,961
CLOs and SASB | Primary Beneficiary | Loans held for investment
Assets:
Loans held-for-investment, net	$ 4,223,445	$ 4,365,791