Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2018	Oct. 31, 2018
Entity Registrant Name	RE/MAX Holdings, Inc.
Entity Central Index Key	0001581091
Document Period End Date	Sep. 30, 2018
Current Fiscal Year End Date	--12-31
Document Type	10-Q
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Common Class A
Entity Common Stock, Shares Outstanding		17,746,184
Common Class B
Entity Common Stock, Shares Outstanding		1