Annual report pursuant to Section 13 and 15(d)

Subsequent Events - Monthly Distributions Declared by Company's Board of Directors (Detail)

v3.19.3.a.u2
Subsequent Events - Monthly Distributions Declared by Company's Board of Directors (Detail) - Subsequent Event - $ / shares
Apr. 01, 2020
Mar. 31, 2020
Mar. 25, 2020
Mar. 20, 2020
Mar. 04, 2020
Feb. 28, 2020
Feb. 26, 2020
Feb. 19, 2020
Jan. 31, 2020
Jan. 24, 2020
Jan. 22, 2020
Jan. 14, 2020
Series A Preferred Stock                        
Subsequent Event [Line Items]                        
Distribution per Share                       $ 0.3984375
Series A Preferred Stock | Period One                        
Subsequent Event [Line Items]                        
Record Date                   Jan. 24, 2020    
Payment Date                 Jan. 31, 2020      
Distribution per Share                   $ 0.1328125    
Series A Preferred Stock | Period Two                        
Subsequent Event [Line Items]                        
Record Date               Feb. 19, 2020        
Distribution per Share               $ 0.1328125        
Series B Preferred Stock                        
Subsequent Event [Line Items]                        
Distribution per Share                       0.375
Series B Preferred Stock | Period One                        
Subsequent Event [Line Items]                        
Record Date                     Jan. 22, 2020  
Payment Date                 Jan. 31, 2020      
Distribution per Share                     $ 0.125  
Common Stock                        
Subsequent Event [Line Items]                        
Distribution per Share                       $ 0.13395
Common Stock | Period One                        
Subsequent Event [Line Items]                        
Record Date                   Jan. 24, 2020    
Payment Date                 Jan. 31, 2020      
Distribution per Share                   $ 0.04465    
Common Stock | Period Two                        
Subsequent Event [Line Items]                        
Record Date               Feb. 19, 2020        
Distribution per Share               $ 0.04465        
Forecast | Series A Preferred Stock | Period Two                        
Subsequent Event [Line Items]                        
Payment Date           Feb. 28, 2020            
Forecast | Series A Preferred Stock | Period Three                        
Subsequent Event [Line Items]                        
Record Date       Mar. 20, 2020                
Payment Date   Mar. 31, 2020                    
Distribution per Share       $ 0.1328125                
Forecast | Series B Preferred Stock | Period Two                        
Subsequent Event [Line Items]                        
Record Date             Feb. 26, 2020          
Payment Date         Mar. 04, 2020              
Distribution per Share             $ 0.125          
Forecast | Series B Preferred Stock | Period Three                        
Subsequent Event [Line Items]                        
Record Date     Mar. 25, 2020                  
Payment Date Apr. 01, 2020                      
Distribution per Share     $ 0.125                  
Forecast | Common Stock | Period Two                        
Subsequent Event [Line Items]                        
Payment Date           Feb. 28, 2020            
Forecast | Common Stock | Period Three                        
Subsequent Event [Line Items]                        
Record Date       Mar. 20, 2020                
Payment Date   Mar. 31, 2020                    
Distribution per Share       $ 0.04465