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
	Mar. 31, 2020	Mar. 31, 2019
Numerator
Net income attributable to RE/MAX Holdings, Inc.	$ 2,631	$ 4,409
Earnings per share of Class A common stock
Net income attributable to RE/MAX Holdings, Inc. per share of Class A common stock, basic	$ 0.15	$ 0.25
Net income attributable to RE/MAX Holdings, Inc. per share of Class A common stock, diluted	$ 0.15	$ 0.25
RMCO, LLC
Numerator
Net income attributable to RE/MAX Holdings, Inc.	$ 2,631	$ 4,409
Common Class A
Denominator for basic net income per share of Class A common stock
Weighted average shares of Class A common stock outstanding	17,974,264	17,775,381
Denominator for diluted net income per share of Class A common stock
Weighted average shares of Class A common stock outstanding	17,974,264	17,775,381
Add dilutive effect of the following:
Weighted average shares of Class A common stock outstanding, diluted	18,033,631	17,817,620
Earnings per share of Class A common stock
Net income attributable to RE/MAX Holdings, Inc. per share of Class A common stock, basic	$ 0.15	$ 0.25
Net income attributable to RE/MAX Holdings, Inc. per share of Class A common stock, diluted	$ 0.15	$ 0.25
Employee Stock Option | Common Class A
Denominator for basic net income per share of Class A common stock
Weighted average shares of Class A common stock outstanding	17,974,264	17,775,381
Denominator for diluted net income per share of Class A common stock
Weighted average shares of Class A common stock outstanding	17,974,264	17,775,381
Restricted Stock Units (RSUs)
Add dilutive effect of the following:
Restricted stock units	59,367	42,239
Restricted Stock Units (RSUs) | Common Class A
Add dilutive effect of the following:
Weighted average shares of Class A common stock outstanding, diluted	18,033,631	17,817,620