Quarterly report pursuant to Section 13 or 15(d)

Share-based Compensation and Profits Interests - Additional Information (Detail)

v3.21.2
Share-based Compensation and Profits Interests - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2021
Jul. 06, 2021
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]      
Aggregate unrecognized compensation cost $ 44,197 $ 44,197  
Share-based compensation expense related to forfeitures 300 $ 300  
Restricted Stock Units (RSUs) [Member]      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]      
Number of shares granted   4,436,674  
Aggregate unrecognized compensation cost 32,900 $ 32,900  
Weighted-average period over which compensation cost not yet recognized is expected to be recognized    3 years 2 months 12 days  
Restricted Stock and RSUs [Member]      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]      
Aggregate unrecognized compensation cost 32,944 $ 32,944  
Profit interest awards [Member]      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]      
Aggregate unrecognized compensation cost 11,253 $ 11,253  
Weighted-average period over which compensation cost not yet recognized is expected to be recognized    3 years  
BRIDGE INVESTMENT GROUP HOLDINGS LLC [Member] | Restricted Stock [Member]      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]      
Stock-based compensation reversed 300 $ 300  
BRIDGE INVESTMENT GROUP HOLDINGS LLC [Member] | Restricted Stock Units (RSUs) [Member]      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]      
Stock-based compensation reversed $ 300 $ 300  
BRIDGE INVESTMENT GROUP HOLDINGS LLC [Member] | Antidilutive Awards [Member]      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]      
Percentage of amortization of falue value of awards   100.00%  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value   $ 13,600  
BRIDGE INVESTMENT GROUP HOLDINGS LLC [Member] | Common Class A [Member] | Restricted Stock [Member]      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]      
Number of shares granted   2,146,826  
BRIDGE INVESTMENT GROUP HOLDINGS LLC [Member] | Fund Managers [Member] | Minimum [Member]      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]      
Percentage of holding company ownership by fund managers 5.00% 5.00%  
BRIDGE INVESTMENT GROUP HOLDINGS LLC [Member] | Fund Managers [Member] | Maximum [Member]      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]      
Percentage of holding company ownership by fund managers 40.00% 40.00%  
2021 Incentive Award Plan [Member] | BRIDGE INVESTMENT GROUP HOLDINGS LLC [Member] | Restricted Stock Units (RSUs) [Member]      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures   16,500  
2021 Incentive Award Plan [Member] | BRIDGE INVESTMENT GROUP HOLDINGS LLC [Member] | Common Class A [Member] | Restricted Stock Units (RSUs) [Member]      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]      
Common stock initially reserved for issuance,shares     6,600,000