Revenue - Condensed Consolidated Statement of Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net income	$ 9,167	$ 9,388
Change in cumulative translation adjustment	(82)	89
Comprehensive income	9,085	9,477
Comprehensive income attributable to non-controlling interest	4,145	4,899
Comprehensive income attributable to RE/MAX Holdings, Inc., net of tax	$ 4,940	4,578
As previously reported | ASU 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net income		10,071
Change in cumulative translation adjustment		95
Comprehensive income		10,166
Comprehensive income attributable to non-controlling interest		5,210
Comprehensive income attributable to RE/MAX Holdings, Inc., net of tax		4,956
Adjustments | ASU 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net income		(683)
Change in cumulative translation adjustment		(6)
Comprehensive income		(689)
Comprehensive income attributable to non-controlling interest		(311)
Comprehensive income attributable to RE/MAX Holdings, Inc., net of tax		$ (378)