v3.21.2
Internalization - Additional Information (Detail)
3 Months Ended 9 Months Ended
Feb. 07, 2020
USD ($)
Tranche
Sep. 30, 2020
USD ($)
Sep. 30, 2021
USD ($)
$ / shares
Sep. 30, 2020
USD ($)
Internalization [Line Items]        
Payment of cash at earnout milestone     $ 13,048,000  
Merger Agreement        
Internalization [Line Items]        
Number of tranches | Tranche 4      
VWAP per REIT Share Days 40 days      
Merger Agreement | Maximum        
Internalization [Line Items]        
Additional consideration payable $ 75,000      
Merger Agreement | Tranche One        
Internalization [Line Items]        
Additional consideration payable 10,000,000      
40-Day VWAP of a REIT Share | $ / shares     $ 22.50  
Merger Agreement | Tranche Two        
Internalization [Line Items]        
Additional consideration payable 15,000,000      
40-Day VWAP of a REIT Share | $ / shares     23.75  
Merger Agreement | Tranche Three        
Internalization [Line Items]        
Additional consideration payable 25,000,000      
40-Day VWAP of a REIT Share | $ / shares     24.375  
Merger Agreement | Tranche Four        
Internalization [Line Items]        
Additional consideration payable $ 25,000,000      
40-Day VWAP of a REIT Share | $ / shares     $ 25.00  
Elimination of Internalization Expenses and Asset Management, Property Management, and Disposition Fees and Adjustments to Reflect Incremental Interest Expense | Internalization Expenses        
Internalization [Line Items]        
Business combination pro forma adjustments income   $ 1,929,000   $ 8,068,000