Business and Organization (Details)	12 Months Ended
	Dec. 31, 2022 state Vote Office class	Dec. 31, 2021
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Percentage of Company consisting of franchises	100.00%
Number of classes of common stock | class	2
RMCO, LLC
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Holdings outstanding Class A common stock (equal to Holdings common units in RMCO)	58.70%	60.00%
Maximum | RMCO, LLC
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Holdings outstanding Class A common stock (equal to Holdings common units in RMCO)	60.00%
RIHI | RMCO, LLC
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Non-controlling interest ownership of common units in RMCO	41.30%	40.00%
RIHI | Maximum | RMCO, LLC
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Non-controlling interest ownership of common units in RMCO	40.00%
Motto
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Number of states in which entity operates | state	40
Motto | Minimum
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Number of offices | Office	225
Common Class A
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Number of votes per share held | Vote	1
Common Class A | One Company Founder
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Ownership percentage	1.20%