Consolidated Securitization Vehicles and Other Variable Interest Entities - Assets and Liabilities Related to the Consolidated VIEs (Details) - USD ($) $ in Thousands		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Assets:
Non-Agency RMBS, at fair value		$ 1,064,169	$ 1,043,806
Loans held for investment, at fair value		11,196,678	11,397,046
Accrued interest receivable		81,386	76,960
Other assets		170,924	87,018
Total assets	[1]	13,116,490	12,928,998
Liabilities:
Securitized debt, collateralized by Non-Agency RMBS		71,247	75,012
Securitized debt at fair value, collateralized by Loans held for investment		6,984,495	7,601,881
Accrued interest payable		41,472	38,272
Other liabilities		45,075	9,355
Total liabilities	[1]	10,590,301	10,370,079
Allowance for credit losses		28,397	18,560	$ 7,188
Variable Interest Entities, Primary Beneficiary
Assets:
Non-Agency RMBS, at fair value		229,343	248,993
Loans held for investment, at fair value		9,671,731	10,184,538
Accrued interest receivable		50,305	52,712
Other assets		18,715	15,597
Total assets		9,970,094	10,501,840
Liabilities:
Securitized debt, collateralized by Non-Agency RMBS		71,247	75,012
Securitized debt at fair value, collateralized by Loans held for investment		6,671,471	7,248,768
Accrued interest payable		21,803	23,310
Other liabilities		1,984	2,019
Total liabilities		6,766,505	7,349,109
Allowance for credit losses		$ 10,000	$ 6,000

[1] The Company's consolidated statements of financial condition include assets of consolidated variable interest entities, or VIEs, that can only be used to settle obligations and liabilities of the VIE for which creditors do not have recourse to the primary beneficiary (Chimera Investment Corporation). As of December 31, 2024, and December 31, 2023, total assets of consolidated VIEs were $9,970,094 and $10,501,840, respectively, and total liabilities of consolidated VIEs were $6,766,505 and $7,349,109, respectively. See Note 9 for further discussion.