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Preferred Stock (Details)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Apr. 02, 2021
$ / shares
shares
Mar. 31, 2022
USD ($)
day
$ / shares
shares
Mar. 31, 2021
USD ($)
shares
Dec. 31, 2021
USD ($)
$ / shares
Dec. 31, 2020
USD ($)
Class of Stock [Line Items]          
Series Preferred Stock | $   $ 3,303 $ 2,388    
Common Stock          
Class of Stock [Line Items]          
Common Shares Issued (in shares) | shares     1,535,000    
Series B Preferred Stock          
Class of Stock [Line Items]          
Temporary equity, dividend rate (as a percent)   5.50% 5.50%    
Initial conversion/redemption price (in dollars per share)   $ 18.70      
Temporary equity conversion rate   1.3372      
Annual preferred stock dividend (in dollars per share)   $ 1.375      
Consecutive trading days | day   45      
Days ending prior to notice of conversion   3 days      
Redemption price (in dollars per share)   $ 25.00      
Redemption percent of liquidation preference   103.00%      
Liquidation preference per share (in dollars per share)   $ 25.00      
Series Preferred Stock | $   $ 1,058 $ 1,563    
Preferred Shares Tendered (in shares) | shares     486,000    
Series Preferred Stock | $   $ 65,426   $ 65,426  
Temporary equity, par value (in dollars per share)   $ 0.01   $ 0.01  
Series B Preferred Stock | Minimum          
Class of Stock [Line Items]          
Percent of conversion price   110.00%      
Series B Preferred Stock | Preferred Stock          
Class of Stock [Line Items]          
Series Preferred Stock | $   $ 65,426 $ 96,609 $ 65,426 $ 106,949
Series E Preferred Stock          
Class of Stock [Line Items]          
Initial conversion/redemption price (in dollars per share)   $ 25.00      
Temporary equity conversion rate   5.69476      
Sale of temporary equity, offering price (in dollars per share)   $ 25.00      
Period of preferred dividends in arrears (in months)   18 months      
Redemption fee, percent of stated value on the original issue date   8.00%      
Redemption fee, percent of stated value beginning on the first anniversary   5.00%      
Redemption fee, percent of stated value beginning on the third anniversary   0.00%      
Issuance of preferred stock (in shares) | shares   1,477,000      
Net proceeds | $   $ 33,236      
Series Preferred Stock | $   73,404   39,339  
Adjustments to Series Preferred Stock | $   972   $ 3,128  
Dividends declared on Series Preferred Stock | $   $ 1,399      
Temporary equity, par value (in dollars per share)   $ 0.01   $ 0.01  
Series E Preferred Stock | Initial Closing Date          
Class of Stock [Line Items]          
Temporary equity, dividend rate (as a percent)   0.0008%      
Series E Preferred Stock | First Anniversary From Initial Closing Date          
Class of Stock [Line Items]          
Temporary equity, dividend rate (as a percent)   0.0775%      
Series E Preferred Stock | Second Anniversary From Initial Closing Date          
Class of Stock [Line Items]          
Temporary equity, dividend rate (as a percent)   0.00075%      
Series E Preferred Stock | Preferred Stock          
Class of Stock [Line Items]          
Issuance of preferred stock (in shares) | shares   1,481,000      
Series Preferred Stock | $   $ 73,404   $ 39,339  
Series E Preferred Stock | Equity Distribution Agreements          
Class of Stock [Line Items]          
Sale of temporary equity, number of shares authorized in transaction (in shares) | shares 20,000,000        
Sale of temporary equity, offering price (in dollars per share) $ 25.00        
Series E Preferred Stock | Dividend Reinvestment Plan          
Class of Stock [Line Items]          
Sale of temporary equity, number of shares authorized in transaction (in shares) | shares 8,000,000        
Sale of temporary equity, offering price (in dollars per share) $ 25.00        
Series M Preferred Stock          
Class of Stock [Line Items]          
Temporary equity, dividend rate (as a percent)   0.00082%      
Sale of temporary equity, offering price (in dollars per share) 25.00 $ 25.00      
Redemption fee, percent of stated value on the original issue date   1.50%      
Redemption fee, percent of stated value beginning on the first anniversary   0.00%      
Issuance of preferred stock (in shares) | shares   33,000      
Net proceeds | $   $ 810      
Series Preferred Stock | $   1,538   715  
Adjustments to Series Preferred Stock | $   21   $ 133  
Dividends declared on Series Preferred Stock | $   $ 21      
Temporary equity, par value (in dollars per share) $ 0.01 $ 0.01   $ 0.01  
Dividend rate (in dollars per share)   $ 2.05      
Dividend rate increase each year from original issuance (as a percent)   0.10%      
Dividend rate, maximum percentage of stated value   8.70%      
Series M Preferred Stock | Preferred Stock          
Class of Stock [Line Items]          
Issuance of preferred stock (in shares) | shares   33,000      
Series Preferred Stock | $   $ 1,538   $ 715  
Series M Preferred Stock | Equity Distribution Agreements          
Class of Stock [Line Items]          
Sale of temporary equity, number of shares authorized in transaction (in shares) | shares 20,000,000        
Sale of temporary equity, offering price (in dollars per share) $ 25.00        
Series M Preferred Stock | Dividend Reinvestment Plan          
Class of Stock [Line Items]          
Sale of temporary equity, number of shares authorized in transaction (in shares) | shares 8,000,000        
Sale of temporary equity, offering price (in dollars per share) $ 25.00