Collateralized Debt Obligations - Schedule of Mortgages Payable in Consolidated VIEs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Debt Instrument [Line Items]
Carrying Value	$ 3,581,856		$ 3,581,856		$ 3,511,802
Minimum
Debt Instrument [Line Items]
Debt instrument, interest rate increases, months after issuance			30 months
Maximum
Debt Instrument [Line Items]
Debt instrument, interest rate increases, months after issuance			48 months
Step-Up Interest Rate One
Debt Instrument [Line Items]
Debt instrument, interest rate increase, non-redemption	1.00%		1.00%
Step-Up Interest Rate Two
Debt Instrument [Line Items]
Debt instrument, interest rate increase, non-redemption	3.00%		3.00%
Collateralized Debt Obligations \| Secured Debt
Debt Instrument [Line Items]
Outstanding Face Amount	$ 3,692,832		$ 3,692,832		3,587,998
Carrying Value	3,581,856		3,581,856		3,511,802
Collateralized Debt Obligations \| Secured Debt \| Consolidated SLST at fair value
Debt Instrument [Line Items]
Outstanding Face Amount	1,016,806		1,016,806		1,055,791
Carrying Value	$ 956,329		$ 956,329		$ 1,006,919
Weighted average interest rate	3.20%		3.20%		3.30%
Collateralized Debt Obligations \| Secured Debt \| Consolidated SLST at fair value \| Interest Rate Step-Up
Debt Instrument [Line Items]
Outstanding Face Amount	$ 2,000,000		$ 2,000,000
Collateralized Debt Obligations \| Secured Debt \| Residential loan securitizations at fair value
Debt Instrument [Line Items]
Outstanding Face Amount	2,273,190		2,273,190		$ 2,103,164
Carrying Value	$ 2,223,048		$ 2,223,048		$ 2,075,962
Weighted average interest rate	5.03%		5.03%		5.35%
Unrealized gains (losses) recognized on CDOs	$ 11,800	$ (7,400)	$ 22,800	$ (12,000)
Collateralized Debt Obligations \| Secured Debt \| Residential loan securitizations at amortized cost, net
Debt Instrument [Line Items]
Outstanding Face Amount	341,703		341,703		$ 363,712
Carrying Value	$ 341,636		$ 341,636		$ 363,645
Weighted average interest rate	3.76%		3.76%		3.74%
Collateralized Debt Obligations \| Secured Debt \| Non-Agency RMBS re-securitization at fair value
Debt Instrument [Line Items]
Outstanding Face Amount	$ 61,133		$ 61,133		$ 65,331
Carrying Value	$ 60,843		$ 60,843		$ 65,276
Weighted average interest rate	7.38%		7.38%		7.38%

ADAMAS TRUST, INC. 10-Q