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Summary of Significant Accounting Policies - Additional Information (Details)
12 Months Ended
Dec. 31, 2025
USD ($)
subsidiary
country
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Significant Accounting Policies [Line Items]      
Broker fees, as a percent 1.00%    
Percentage of agent 22.00%    
Impairment of franchise agreements and other intangible assets subject to amortization | $ $ 0 $ 0 $ 0
Equity-based compensation vesting period 3 years    
Minimum      
Significant Accounting Policies [Line Items]      
Number of countries and territories operations conducted | country 120    
Software | Minimum      
Significant Accounting Policies [Line Items]      
Useful life of intangible assets 2 years    
Software | Maximum      
Significant Accounting Policies [Line Items]      
Useful life of intangible assets 5 years    
RMCO, LLC      
Significant Accounting Policies [Line Items]      
Parent economic interest in RMCO (as a percentage) 61.50% 60.20%  
RMCO, LLC | Maximum      
Significant Accounting Policies [Line Items]      
Parent economic interest in RMCO (as a percentage) 60.00%    
RMCO, LLC      
Significant Accounting Policies [Line Items]      
Number of corporate subsidiaries | subsidiary 2    
RMCO, LLC | Subsidiaries      
Significant Accounting Policies [Line Items]      
Income tax provision recognized, percentage of income 100.00%    
Annual dues      
Significant Accounting Policies [Line Items]      
Deferred revenue recognition period 12 months    
Franchise sales | RE/MAX franchise agreements      
Significant Accounting Policies [Line Items]      
Period of franchise agreement 5 years    
Franchise sales | Motto Franchising      
Significant Accounting Policies [Line Items]      
Period of franchise agreement 7 years