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Subsequent Events (Details) - USD ($)
$ / shares in Units, $ in Millions
Oct. 25, 2024
Nov. 06, 2024
Nov. 04, 2024
May 05, 2017
Sale Agents        
Subsequent Event [Line Items]        
Amount authorized       $ 100.0
Subsequent Event | 2024 Sales Agents        
Subsequent Event [Line Items]        
Amount authorized   $ 75.0    
Subsequent Event | Sale Agents        
Subsequent Event [Line Items]        
Remaining authorized amount   $ 51.7    
Subsequent Event | Home Equity Loans | Residential Portfolio Segment        
Subsequent Event [Line Items]        
Balance of loans sold during period $ 48.9      
8.25% Series A Cumulative Redeemable Preferred Stock | Subsequent Event        
Subsequent Event [Line Items]        
Dividends payable (in dollars per share)     $ 0.51563  
Series B Cumulative Reedmable Preferred Stock | Subsequent Event        
Subsequent Event [Line Items]        
Dividends payable (in dollars per share)     0.50  
Series C Fixed to Floating Rate Cumulative Redeemable Preferred | Subsequent Event        
Subsequent Event [Line Items]        
Dividends payable (in dollars per share)     $ 0.725061