Earnings (Loss) Per Share and Dividends - Reconciliation of the numerator and denominator used in basic and diluted EPS calculations (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Numerator
Net income (loss) attributable to RE/MAX Holdings, Inc.	$ (15,616)	$ 11,250	$ 25,280
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	18,690,442	18,170,348	17,812,065
Denominator for diluted net income (loss) per share of Class A common stock
Weighted average shares of Class A common stock outstanding	18,690,442	18,170,348	17,812,065
Add dilutive effect of the following:
Weighted average shares of Class A common stock outstanding, diluted	18,690,442	18,324,246	17,867,752
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	$ (0.84)	$ 0.62	$ 1.42
Net income (loss) attributable to RE/MAX Holdings, Inc. per share of Class A common stock, diluted	$ (0.84)	$ 0.61	$ 1.41
Restricted Stock Units (RSUs)
Add dilutive effect of the following:
Restricted stock		153,898	55,687