Annual report pursuant to Section 13 and 15(d)

Related-Party Transactions - Narrative (Detail)

v3.22.4
Related-Party Transactions - Narrative (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Related Party Transaction [Line Items]      
Operating lease cost $ 26,038 $ 26,209  
Aggregate principal amount for employee notes receivable 4 40  
MMC      
Related Party Transaction [Line Items]      
Real estate brokerage commissions and financing fees from transactions with subsidiaries of Marcus & Millichap Company 3,600 2,400 $ 2,900
Commission expenses for transactions with subsidiaries of Marcus & Millichap Company 2,400 1,400 1,700
Operating lease cost 1,300 1,300 1,300
Accounts payable and other liabilities - related party 79 93  
MMC | Transition Services Agreement      
Related Party Transaction [Line Items]      
Selling, general and administrative expense $ (64) $ (12) $ 68
Chairman and Founder      
Related Party Transaction [Line Items]      
Beneficial ownership percentage 38.00%