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Unaudited Quarterly Financial Data - Consolidated Balance Sheets - (Details) - $ / shares
Dec. 31, 2024
Sep. 30, 2024
Jun. 30, 2024
Mar. 31, 2024
Dec. 31, 2023
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2022
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Dec. 02, 2019
Nov. 20, 2019
Mar. 13, 2018
Jun. 28, 2017
Class of Stock [Line Items]                                
Preferred Stock, Shares Issued 17,497,000 13,725,000 13,011,000 12,634,000 12,600,000 12,600,000 12,600,000 12,600,000 12,600,000 12,600,000 12,600,000 12,600,000        
Preferred Stock, Shares Outstanding 17,497,000 13,725,000 13,011,000 12,634,000 12,600,000 12,600,000 12,600,000 12,600,000 12,600,000 12,600,000 12,600,000 12,600,000        
Trust shares, par value (in dollars per share) $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0        
Trust shares, authorized (in shares) 500,000,000 500,000,000 500,000,000 500,000,000 500,000,000 500,000,000 500,000,000 500,000,000 500,000,000 500,000,000 500,000,000 500,000,000        
Trust shares, issued (in shares) 76,135,000 76,135,000 75,958,000 75,807,000 75,753,000 72,203,000 71,896,000 71,993,000 72,203,000 72,203,000 71,268,000 69,450,000        
Trust shares, outstanding (in shares) 75,236,000 75,652,000 75,476,000 75,234,000 75,270,000 71,820,000 71,896,000 71,993,000 72,203,000 72,203,000 71,268,000 69,450,000        
Preferred Stock, Shares Authorized 50,000,000 50,000,000 50,000,000 50,000,000 50,000,000 50,000,000 50,000,000 50,000,000 50,000,000 50,000,000 50,000,000 50,000,000        
Preferred Stock, Shares Issued 17,497,000 13,725,000 13,011,000 12,634,000 12,600,000 12,600,000 12,600,000 12,600,000 12,600,000 12,600,000 12,600,000 12,600,000        
Preferred Stock, Shares Outstanding 17,497,000 13,725,000 13,011,000 12,634,000 12,600,000 12,600,000 12,600,000 12,600,000 12,600,000 12,600,000 12,600,000 12,600,000        
Series A Preferred Stock [Member]                                
Class of Stock [Line Items]                                
Preferred Stock, Shares Issued 4,551,000       4,000,000       4,000,000             4,000,000
Preferred Stock, Shares Outstanding 4,551,000       4,000,000                      
Preferred Stock, No Par Value $ 0       $ 0       $ 0              
Preferred Stock, Shares Issued 4,551,000       4,000,000       4,000,000             4,000,000
Preferred Stock, Shares Outstanding 4,551,000       4,000,000                      
Series B Preferred Stock [Member]                                
Class of Stock [Line Items]                                
Preferred Stock, Shares Issued 6,192,000       4,000,000       4,000,000           4,000,000  
Preferred Stock, Shares Outstanding 6,192,000       4,000,000                      
Preferred Stock, No Par Value $ 0       $ 0       $ 0              
Preferred Stock, Shares Issued 6,192,000       4,000,000       4,000,000           4,000,000  
Preferred Stock, Shares Outstanding 6,192,000       4,000,000                      
Series C Preferred Stock [Member]                                
Class of Stock [Line Items]                                
Preferred Stock, Shares Issued 6,754,000       4,600,000       4,600,000       600,000 4,000,000    
Preferred Stock, Shares Outstanding 6,754,000       4,600,000                      
Preferred Stock, No Par Value $ 0       $ 0       $ 0              
Preferred Stock, Shares Issued 6,754,000       4,600,000       4,600,000       600,000 4,000,000    
Preferred Stock, Shares Outstanding 6,754,000       4,600,000