Earnings Per Share, Dividends and Repurchases - 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, 2022	Mar. 31, 2021
Numerator
Net income (loss) attributable to RE/MAX Holdings, Inc.	$ 1,451	$ 1,163
Common Class A
Denominator for basic net income (loss) per share of Class A common stock
Weighted average shares of Class A common stock outstanding	18,934,424	18,496,532
Denominator for diluted net income (loss) per share of Class A common stock
Weighted average shares of Class A common stock outstanding	18,934,424	18,496,532
Add dilutive effect of the following:
Weighted average shares of Class A common stock outstanding, diluted	19,211,603	18,866,727
Earnings (loss) per share of Class A common stock
Net income (loss) attributable to RE/MAX Holdings, Inc. per share of Class A common stock, basic	$ 0.08	$ 0.06
Net income (loss) attributable to RE/MAX Holdings, Inc. per share of Class A common stock, diluted	$ 0.08	$ 0.06
Restricted Stock Units (RSUs)
Add dilutive effect of the following:
Restricted stock	277,179	370,195