Summary of Significant Accounting Policies - Services Provided to Marketing Funds by REMAX Franchising (Details) - Marketing funds - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Costs charged	$ 10,367	$ 10,575	$ 20,952
Technology - operating
Costs charged	4,397	4,676	14,436
Technology - capital
Costs charged		(203)	918
Technology - capital | Work in progress assets
Costs charged		200	500
Marketing staff and administrative services
Costs charged	$ 5,970	$ 6,102	$ 5,598