Marcus & Millichap, Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

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

Related-Party Transactions - Additional Information (Detail)

v3.21.2

Related-Party Transactions - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Related Party Transaction [Line Items]
Operating lease cost	$ 6,549,000	$ 6,355,000	$ 19,650,000	$ 18,959,000
Aggregate principal amount for employee notes receivable	66,000		66,000		$ 431,000
MMC [Member]
Related Party Transaction [Line Items]
Real estate brokerage commissions and financing fees from transactions with subsidiaries of Marcus & Millichap Company	603,000	225,000	1,400,000	1,900,000
Commission expenses for transactions with subsidiaries of Marcus & Millichap Company	363,000	130,000	840,000	1,100,000
Operating lease cost	333,000	333,000	$ 998,000	998,000
Lease expiration date			May 31, 2022
Accounts payable and other liabilities - related party	86,000		$ 86,000		$ 89,000
MMC [Member] \| Transition Services Agreement [Member] \| Selling, General and Administrative Expenses [Member]
Related Party Transaction [Line Items]
Selling, general and administrative expense	$ (11,000)	$ 10,000	$ 4,000	$ 52,000
George M. Marcus [Member]
Related Party Transaction [Line Items]
Beneficial ownership percentage			38.00%

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