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Segment Reporting Narrative (Details) | 9 Months Ended
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Sep. 30, 2025
Segment Reporting [Abstract] |
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration] | Chief Executive Officer [Member]
Segment Reporting Information, Description of Products and Services | The classification of reportable segments also considers the distinctive nature of services offered by each segment as follows:•Franchise Group is comprised of the Company's franchise business which franchises a portfolio of well-known, industry-leading franchise brokerage brands and also includes the Company's global relocation services operation and lead generation activities.•Owned Brokerage Group operates a full-service real estate brokerage business and also includes the Company's share of equity earnings or losses from its minority-owned real estate auction joint venture.•Title Group provides full-service title, escrow and settlement services to consumers, real estate companies, corporations and financial institutions primarily in support of residential real estate transactions. This segment also includes the Company's share of equity earnings or losses from Guaranteed Rate Affinity, its minority-owned mortgage origination joint venture, and from its minority-owned title insurance underwriter joint venture.
Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description | The CODM evaluates the performance of the Company's reportable segments primarily through two measures: revenue and operating EBITDA. The CODM focuses on revenue and operating EBITDA by reportable segment in evaluating period over period performance, including budget-to-actual variances, while also taking into consideration current market conditions. This approach provides greater transparency into the operating results of each reportable segment and facilitates effective resource allocation.

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- Definition Description of the types of products and services from which the reportable segment derives its revenue. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 21 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-21 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 54 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482785/280-10-55-54 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 47 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482785/280-10-55-47 + Details
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- Definition Indicates title and position of individual or name of group identified as chief operating decision maker (CODM) for segment reporting. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 54 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482785/280-10-55-54 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 47 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482785/280-10-55-47 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 21 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-21 + Details
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