Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands		Dec. 31, 2024		Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
TBA securities		$ 133		$ 54,361
TBA securities		22,814		0
Long position | TBA securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
TBA securities		133		54,361
TBA securities		22,814		0
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans (2)		1,130		1,793
Total assets carried at fair value		7,513,350		6,095,102
Total liabilities carried at fair value		22,814		0
Fair Value, Measurements, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
MBS		0		0
Mortgage loans (2)		0		0
Total assets carried at fair value		0		0
Total liabilities carried at fair value		0		0
Fair Value, Measurements, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
MBS				6,038,845
Mortgage loans (2)		0		0
Total assets carried at fair value		7,512,220		6,093,206
Total liabilities carried at fair value		22,814		0
Fair Value, Measurements, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
MBS		0		103
Mortgage loans (2)		1,130		1,793
Total assets carried at fair value		1,130		1,896
Total liabilities carried at fair value		0		0
Fair Value, Measurements, Recurring | TBA securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
MBS		7,512,087		6,038,948
Fair Value, Measurements, Recurring | TBA securities | Long position
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
TBA securities	[1]	133		54,361
TBA securities	[1]	22,814		0
Fair Value, Measurements, Recurring | TBA securities | Level 1 | Long position
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
TBA securities		0		0
TBA securities		0		0
Fair Value, Measurements, Recurring | TBA securities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
MBS		7,512,087
Fair Value, Measurements, Recurring | TBA securities | Level 2 | Long position
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
TBA securities	[1]	133		54,361
TBA securities		22,814	[1]	0
Fair Value, Measurements, Recurring | TBA securities | Level 3 | Long position
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
TBA securities		0		0
TBA securities		$ 0		$ 0

[1] TBA securities are reflected on consolidated balance sheets within “derivative assets” and “derivative liabilities” at their implied fair value, net of implied cost basis. Please refer to Note 5 for additional information. (2)Mortgage loans are included within “other assets” on the consolidated balance sheets.