v3.26.1
Consolidated Balance Sheets (Parenthetical) - USD ($)
shares in Thousands, $ in Thousands
 6 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Preferred Stock, Liquidation Preference, Value $ 2,033,000 $ 2,033,000
Common Stock, Par or Stated Value Per Share $ 0.01 $ 0.01
Common Stock, Shares Authorized 2,250,000 2,250,000
Common Stock, Shares, Issued 1,164,200 1,107,600
Common Stock, Shares, Outstanding 1,164,200 1,107,600
Common Stock [Member]    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Title of 12(b) Security Common Stock, par value $0.01 per share  
Depository shares each representing a 1/1,000th interest in a share of 7.000% Series C Fixed-to-Floating Rate Cumulative Redeemable Preferred Stock [Member]    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Title of 12(b) Security Depositary shares of 7.000% Series C Fixed-to-Floating Rate Cumulative Redeemable Preferred Stock  
Depository shares each representing a 1/1,000th interest in a share of 6.875% Series D Fixed-to-Floating Rate Cumulative Redeemable Preferred Stock [Member]    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Title of 12(b) Security Depositary shares of 6.875% Series D Fixed-to-Floating Rate Cumulative Redeemable Preferred Stock  
Depository shares each representing a 1/1000th interest in a share of 6.500% Series E Fixed-to-Floating Rate Cumulative Redeemable Preferred Stock [Member]    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Title of 12(b) Security Depositary shares of 6.50% Series E Fixed-to-Floating Rate Cumulative Redeemable Preferred Stock  
Depositary shares each representing a 1/1000th interest in a share of 6.125% Series F Fixed-to-Floating Rate Cumulative Redeemable Preferred Stock [Member]    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Title of 12(b) Security Depositary shares of 6.125% Series F Fixed-to-Floating Rate Cumulative Redeemable Preferred Stock  
Agency Securities [Member]    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Pledged Financial Instruments, Securities $ 80,761,000 $ 74,149,000
Mortgage-backed Securities, Issued by Private Enterprises [Member]    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Pledged Financial Instruments, Securities 8,000 13,000
Receivable for securities sold [Member]    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Pledged Financial Instruments, Securities 201,000 149,000
Asset Pledged as Collateral [Member] | Credit Risk Transfer Securities [Member]    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Pledged Financial Instruments, Securities 525,000 558,000
Asset Pledged as Collateral [Member] | US Treasury Securities [Member]    
Financial Instruments Owned and Pledged as Collateral [Line Items]    
Pledged Financial Instruments, Securities $ 11,295,000 $ 13,056,000