SEGMENT INFORMATION (Financial Information) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Segment Reporting Information [Line Items]
Consolidated revenues	$ 1,449,548	$ 1,308,877	$ 2,455,089	$ 2,263,783
Consolidated commissions and other agent-related costs	1,350,751	1,216,223	2,280,945	2,094,994
Operating Income (Loss)	1,641	(2,376)	(7,147)	(12,752)
Consolidated Adjusted EBITDA	25,700	11,201	29,753	13,356
Litigation contingency	4,335		4,335
Other (income) expense, net	665	553	803	1,576
Income (loss) before income tax expense	2,306	(1,823)	(6,344)	(11,176)
Goodwill	26,917		26,917		$ 17,872
Operating segments
Segment Reporting Information [Line Items]
Operating Income (Loss)	5,799	543	978	(6,844)
Operating segments | North American Realty
Segment Reporting Information [Line Items]
Consolidated revenues	1,403,046	1,276,487	2,368,150	2,199,535
Consolidated commissions and other agent-related costs	1,312,457	1,188,963	2,209,346	2,041,021
Operating Income (Loss)	7,875	7,111	6,264	3,287
Consolidated Adjusted EBITDA	30,726	19,784	40,689	27,519
Goodwill	26,917		26,917		$ 17,872
Operating segments | International Realty
Segment Reporting Information [Line Items]
Consolidated revenues	46,352	32,293	86,504	63,950
Consolidated commissions and other agent-related costs	38,003	26,918	71,103	53,291
Operating Income (Loss)	(1,821)	(4,209)	(4,837)	(6,129)
Consolidated Adjusted EBITDA	(1,315)	(3,859)	(3,736)	(5,474)
Operating segments | Other Affiliated Services
Segment Reporting Information [Line Items]
Consolidated revenues	686	708	1,544	1,535
Consolidated commissions and other agent-related costs	291	342	496	682
Operating Income (Loss)	(255)	(2,359)	(449)	(4,002)
Consolidated Adjusted EBITDA	(188)	(2,291)	(318)	(3,746)
Segment eliminations
Segment Reporting Information [Line Items]
Consolidated revenues	(536)	(611)	(1,109)	(1,237)
Segment reporting, excluding Corporate non segment
Segment Reporting Information [Line Items]
Depreciation and amortization expense	2,245	2,272	4,567	4,833
Legal costs non-recurring	4,485		4,485
Litigation contingency	4,335		4,335
Stock-based compensation	12,102	9,703	21,175	17,821
Stock option expense	892	1,602	2,338	3,454
Other (income) expense, net	(665)	(553)	(803)	(1,576)
Corporate and other, non-segment
Segment Reporting Information [Line Items]
Operating Income (Loss)	(4,158)	(2,919)	(8,125)	(5,908)
Consolidated Adjusted EBITDA	$ (3,523)	$ (2,433)	$ (6,882)	$ (4,943)