Summary of Significant Accounting Policies - Services Provided to Marketing Funds by REMAX Franchising (Details) - Marketing funds - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Costs charged	$ 4,742	$ 5,181	$ 16,327	$ 14,725
Work in progress assets
Costs charged	500
Technology - operating
Costs charged	3,526	3,213	11,269	10,046
Technology - capital
Costs charged	(277)	243	884	647
Marketing staff and administrative services
Costs charged	$ 1,493	$ 1,725	$ 4,174	$ 4,032