Summary of Significant Accounting Policies - Services Provided to Marketing Funds by REMAX Franchising (Details) - Marketing funds - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Costs charged	$ 2,458	$ 6,396
Work in progress assets
Costs charged	200
Technology - operating
Costs charged	1,169	4,224
Technology - capital
Costs charged	(203)	631
Marketing staff and administrative services
Costs charged	$ 1,492	$ 1,541