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 and Basis of Presentation (Policies)
Notes Tables
Notes Details

Description of Business and Basis of Presentation - Narrative (Detail)

v3.23.3

Description of Business and Basis of Presentation - Narrative (Detail) - office	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Class of Stock [Line Items]
Number of offices (over)			80
Percentage of common stock distributed			80.00%
Commission's receivable settled period			10 days
Guarantee obligations			16.70%
Total Revenues \| Geographic Concentration Risk \| Canada \| Customer
Class of Stock [Line Items]
Concentration risk percentage	5.40%	1.50%	4.00%	2.00%

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