Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Additional Information (Detail)

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Commitments and Contingencies - Additional Information (Detail) - USD ($)
1 Months Ended 12 Months Ended
Jan. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Sep. 30, 2020
Subsidiary or Equity Method Investee [Line Items]          
Contingent repayment obligation or liability      
Standby letter of credit $ 3,000,000.0        
BRIDGE INVESTMENT GROUP HOLDINGS LLC [Member]          
Subsidiary or Equity Method Investee [Line Items]          
Long term deferred rent     700,000    
Short-term deferred rent   100,000 100,000    
Rent expense, office leases   4,400,000 4,100,000 $ 3,700,000  
Lease incentive amortization   300,000 300,000 $ 300,000  
Equity method investment carried interest allocations maximum amount subject to contingent repayment   120,900,000 $ 62,700,000    
Contingent repayment obligation or liability   0      
Letter of Credit [Member] | BRIDGE INVESTMENT GROUP HOLDINGS LLC [Member]          
Subsidiary or Equity Method Investee [Line Items]          
Standby letter of credit   $ 3,000,000.0      
Operating leases         $ 362,000