Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Additional Information (Detail)

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Summary of Significant Accounting Policies - Additional Information (Detail) - BRIDGE INVESTMENT GROUP HOLDINGS LLC [Member] - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Aug. 12, 2021
Jan. 01, 2021
Refundable deposit       $ 1,100
Goodwill $ 9,830 $ 9,830    
Goodwill, Impairment Loss 0 0    
Percent of Tax Receivable Agreement     85.00%  
Remaining percent of tax receivable agreement     15.00%  
Debt extinguishment expense 14,200      
Accrued performance allocation $ 301,910 $ 199,410    
Maximum [Member]        
Finite-Lived Intangible Asset, Useful Life 10 years      
Minimum [Member]        
Finite-Lived Intangible Asset, Useful Life 6 years