Marcus & Millichap, Inc. Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Cover
- Cover Page
Financial Statements
Notes to Financial Statements
Accounting Policies
- Description of Business and Basis of Presentation (Policies)
Notes Tables
Notes Details

Related-Party Transactions - Additional Information (Detail)

v3.22.0.1

Related-Party Transactions - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Related Party Transaction [Line Items]
Operating lease cost	$ 26,209,000	$ 25,508,000
Aggregate principal amount for employee notes receivable	40,000	431,000
MMC [Member]
Related Party Transaction [Line Items]
Real estate brokerage commissions and financing fees from transactions with subsidiaries of Marcus & Millichap Company	2,400,000	2,900,000	$ 5,200,000
Commission expenses for transactions with subsidiaries of Marcus & Millichap Company	1,400,000	1,700,000	3,000,000.0
Operating lease cost	$ 1,300,000	1,300,000	1,300,000
Lease expiration date	May 31, 2022
Accounts payable and other liabilities - related party	$ 93,000	89,000
MMC [Member] \| Transition Services Agreement [Member]
Related Party Transaction [Line Items]
Selling, general and administrative expense	$ (12,000)	$ 68,000	$ 127,000
George M. Marcus [Member]
Related Party Transaction [Line Items]
Beneficial ownership percentage	38.00%

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