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Material Transactions Affecting Stockholders' Equity (Details) - USD ($)
3 Months Ended
Mar. 09, 2021
Mar. 31, 2021
Dec. 31, 2020
Equity Distribution Agreement [Line Items]      
Preferred stock, Liquidation value   $ 1,000 $ 1,000
Issuance of stock - shares   300,000  
Net proceeds from issuance of stock   $ 289,723,000  
Par value of preferred stock   $ 0.01 $ 0.01
Series B Preferred Stock      
Equity Distribution Agreement [Line Items]      
Preferred Stock, Dividend Rate, Percentage 5.75%    
Preferred stock, Liquidation value $ 1,000    
Net proceeds from issuance of stock   $ 289,700,000  
Depository Shares      
Equity Distribution Agreement [Line Items]      
Preferred stock, Liquidation value $ 25    
Issuance of stock - shares 12,000,000    
Series A Preferred Stock      
Equity Distribution Agreement [Line Items]      
Preferred Stock, Dividend Rate, Percentage   6.50%  
Par value of preferred stock   $ 0.01