Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Mortgage-backed securities (including pledged of $3,012,970 and $2,810,957, respectively), at fair value	$ 3,296,784	$ 3,112,705
Preferred Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Preferred stock, Shares Authorized (in shares)	50,000,000	50,000,000
Preferred Stock, Shares Outstanding (in shares)	4,460,000	4,460,000
Preferred Stock, Shares Issued	4,460,000	4,460,000
Preferred Stock, Liquidation Preference, Value	$ 111,500	$ 111,500
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares Authorized	90,000,000	90,000,000
Common Stock, Shares, Issued	53,876,914	53,637,095
Common Stock, Shares, Outstanding	53,876,914	53,637,095
Asset Pledged as Collateral without Right
Mortgage-backed securities (including pledged of $3,012,970 and $2,810,957, respectively), at fair value	$ 3,012,970	$ 2,810,957