Earnings Per Share and Dividends - Reconciliation of the numerator and denominator used in basic and diluted EPS calculations (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Numerator
Net income attributable to RE/MAX Holdings, Inc.	$ 3,835	$ 6,786	$ 16,277	$ 18,539
Net income attributable to RE/MAX Holdings, Inc. per share of Class A common stock
Anti-dilutive shares	0	0	0	0
Common Class A
Denominator for basic net income per share of common stock
Weighted average shares of Class A common stock outstanding	17,696,991	17,645,696	17,685,683	17,622,298
Denominator for diluted net income per share of common stock
Weighted average shares of Class A common stock outstanding	17,696,991	17,645,696	17,685,683	17,622,298
Add dilutive effect of the following:
Weighted average shares of Class A common stock outstanding, diluted	17,737,786	17,691,641	17,726,447	17,666,740
Net income attributable to RE/MAX Holdings, Inc. per share of Class A common stock
Basic	$ 0.22	$ 0.38	$ 0.92	$ 1.05
Diluted	$ 0.22	$ 0.38	$ 0.92	$ 1.05
Share Outstanding Abstract
Common stock, shares outstanding	17,696,991		17,696,991		17,652,548
Common Class B
Share Outstanding Abstract
Common stock, shares outstanding	1		1		1
Employee Stock Option | Common Class A
Add dilutive effect of the following:
Dilutive effect				6,714
Restricted Stock Units (RSUs) | Common Class A
Add dilutive effect of the following:
Dilutive effect	40,795	45,945	40,764	37,728