Quarterly report pursuant to Section 13 or 15(d)

Notes Receivable from Employees - Additional Information (Detail)

v3.21.2
Notes Receivable from Employees - Additional Information (Detail) - BRIDGE INVESTMENT GROUP HOLDINGS LLC [Member] - Notes Receivable [Member] - USD ($)
9 Months Ended 12 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Related Party Transaction [Line Items]    
Debt Instrument, Description These notes mature in 2029 and are interest only for the first two years after origination,  
Employees [Member]    
Related Party Transaction [Line Items]    
Debt Instrument, Principal amount $ 4,400,000 $ 7,400
Related party ,Interest rate 4.025% 4.025%
Interest receivable $ 10,000 $ 2,000