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Stockholders' Equity - Restricted Stock Awards (Performance Shares) and Restricted Stock Units - Additional Information (Details) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended
Nov. 12, 2021
Sep. 30, 2021
Restricted Stock    
Stockholders' Equity    
Restricted stock awards forfeited   0
Outstanding shares   732,909
Vesting period   5 years
Investment management cumulative revenue collection target   $ 40
Maximum term of Investment management agreement fees earned   5 years
Awards probable of vesting under performance condition   249,802
Restricted Stock | Employees    
Stockholders' Equity    
Granted, shares   7,845
Restricted Stock | Directors    
Stockholders' Equity    
Granted, shares   140,294
Performance Shares | Subsequent Event    
Stockholders' Equity    
Shares vested 580,923  
Service-Based Restricted Stock Awards    
Stockholders' Equity    
Vesting period   3 years
Granted, shares   104,602
Vesting percentage   25.00%