Summary of Significant Accounting Policies - Services Provided to Marketing Funds by REMAX Franchising (Details) - Marketing funds - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Costs charged	$ 2,652		$ 5,189	$ 5,110	$ 11,585
Work in progress assets
Costs charged		$ 200
Technology - operating
Costs charged	1,169		3,519	2,338	7,743
Technology - capital
Costs charged			530	(203)	1,161
Marketing staff and administrative services
Costs charged	$ 1,483		$ 1,140	$ 2,975	$ 2,681