Annual report pursuant to Section 13 and 15(d)

Capital Stock - ATM Agreements (Details)

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Capital Stock - ATM Agreements (Details) - USD ($)
$ in Millions
29 Months Ended 61 Months Ended
Aug. 05, 2021
Apr. 09, 2021
Mar. 10, 2021
Dec. 18, 2018
Dec. 31, 2023
Dec. 31, 2023
Series B Depositary Shares            
Sale of stock            
Shares issued (in shares)   1,600,000        
2018 Common Stock ATM Agreement | Maximum            
Sale of stock            
Sales commission paid per transaction (as a percent)       3.00%    
2018 Common Stock ATM Agreement | Common Stock            
Sale of stock            
Maximum amount of shares to be issued     $ 50.0 $ 30.0    
Shares issued (in shares)           0
2021 ATM Agreement | Maximum            
Sale of stock            
Sales commission paid per transaction, preferred stock (as a percent) 3.00%          
2021 ATM Agreement | Series B Depositary Shares            
Sale of stock            
Maximum amount of shares to be issued $ 50.0          
Shares issued (in shares)         0