Acquisitions - ReMax Integra North America Acquisition Purchase Price Allocation (Details) - USD ($) $ in Thousands		12 Months Ended
	Jul. 21, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Purchase Price Allocation
Goodwill		$ 269,115	$ 165,358	$ 148,561
Loss on contract settlement		$ 40,900
RE/MAX INTEGRA North America Region Asset Acquisition
Purchase Price Allocation
Cash and cash equivalents and restricted cash	$ 14,098
Accounts and notes receivable, net	6,610
Income tax receivable	494
Other current assets	502
Property and equipment	63
Other assets, net of current portion	1,930
Goodwill	108,938
Accounts payable	(3,461)
Accrued liabilities	(14,045)
Income taxes payable	(2,882)
Deferred revenue	(824)
Deferred tax liabilities, net	(16,573)
Other liabilities, net of current portion	(2,200)
Total purchase price allocated to assets and liabilities	194,100
Loss on contract settlement	40,900
Total consideration	235,000
RE/MAX INTEGRA North America Region Asset Acquisition | Franchise agreements
Purchase Price Allocation
Other intangible assets, net	92,250
RE/MAX INTEGRA North America Region Asset Acquisition | Other Intangible Assets
Purchase Price Allocation
Other intangible assets, net	$ 9,200