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Commitments and Contingencies - Additional Information (Detail)
shares in Millions
3 Months Ended
Mar. 31, 2021
Agreement
shares
Commitments And Contingencies [Line Items]  
Number of promoted interest agreements 3
Number of promoted interest agreements met established performance metrics 0
Advisor Expense Support Agreement | Restricted Stock  
Commitments And Contingencies [Line Items]  
Contingently issuable restricted stock shares | shares 1.3