Borrowings under Repurchase Agreements Schedule of Repurchase Agreements by Maturity (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Repurchase Agreements [Line Items]
Repurchase agreements	$ 517,538	$ 562,974	$ 729,543
Debt, Weighted Average Interest Rate	4.56%	4.81%	5.58%
Repurchase Agreement Counterparty, Weighted Average Maturity of Agreements	11 days	16 days	17 days
Agency RMBS:
Repurchase Agreements [Line Items]
Repurchase agreements	$ 448,778	$ 499,701	$ 680,263
Debt, Weighted Average Interest Rate	4.47%	4.71%	5.55%
Repurchase Agreement Counterparty, Weighted Average Maturity of Agreements	9 days	15 days	17 days
Agency RMBS: \| Maturity up to 30 days [Member]
Repurchase Agreements [Line Items]
Repurchase agreements	$ 448,778	$ 499,701	$ 676,074
Debt, Weighted Average Interest Rate	4.47%	4.71%	5.54%
Repurchase Agreement Counterparty, Weighted Average Maturity of Agreements	9 days	15 days	17 days
Agency RMBS: \| Maturity 31 to 60 days [Member]
Repurchase Agreements [Line Items]
Repurchase agreements	$ 0	$ 0	$ 1,256
Debt, Weighted Average Interest Rate	0.00%	0.00%	6.23%
Repurchase Agreement Counterparty, Weighted Average Maturity of Agreements	0 days		44 days
Agency RMBS: \| Maturity 61 to 90 days [Member]
Repurchase Agreements [Line Items]
Repurchase agreements	$ 0	$ 0	$ 2,933
Debt, Weighted Average Interest Rate	0.00%	0.00%	6.23%
Repurchase Agreement Counterparty, Weighted Average Maturity of Agreements	0 days		67 days
U.S. Treasury Securities
Repurchase Agreements [Line Items]
Repurchase agreements	$ 0	$ 0	$ 30,822
Debt, Weighted Average Interest Rate	0.00%	0.00%	5.53%
Repurchase Agreement Counterparty, Weighted Average Maturity of Agreements	0 days		2 days
U.S. Treasury Securities \| Maturity up to 30 days [Member]
Repurchase Agreements [Line Items]
Repurchase agreements	$ 0	$ 0	$ 30,822
Debt, Weighted Average Interest Rate	0.00%	0.00%	5.53%
Repurchase Agreement Counterparty, Weighted Average Maturity of Agreements	0 days		2 days
Non-Agency RMBS and CLOs
Repurchase Agreements [Line Items]
Repurchase agreements	$ 68,760	$ 63,273	$ 18,458
Debt, Weighted Average Interest Rate	5.17%	5.65%	6.75%
Repurchase Agreement Counterparty, Weighted Average Maturity of Agreements	25 days	27 days	42 days
Non-Agency RMBS and CLOs \| Maturity up to 30 days [Member]
Repurchase Agreements [Line Items]
Repurchase agreements	$ 37,790	$ 38,913	$ 6,782
Debt, Weighted Average Interest Rate	5.45%	5.70%	6.89%
Repurchase Agreement Counterparty, Weighted Average Maturity of Agreements	9 days	17 days	15 days
Non-Agency RMBS and CLOs \| Maturity 31 to 60 days [Member]
Repurchase Agreements [Line Items]
Repurchase agreements	$ 30,970	$ 24,360	$ 4,875
Debt, Weighted Average Interest Rate	4.84%	5.57%	6.80%
Repurchase Agreement Counterparty, Weighted Average Maturity of Agreements	45 days	43 days	46 days
Non-Agency RMBS and CLOs \| Maturity 61 to 90 days [Member]
Repurchase Agreements [Line Items]
Repurchase agreements	$ 0	$ 0	$ 6,801
Debt, Weighted Average Interest Rate	0.00%	0.00%	6.58%
Repurchase Agreement Counterparty, Weighted Average Maturity of Agreements	0 days		67 days