Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Segment Reporting Information [Line Items]
Revenues	$ 364,359	$ 391,975	$ 673,259	$ 664,751
Operating income (loss)	14,628	43,183	22,507	57,411
Adjusted EBITDA attributed to Douglas Elliman	19,202	45,280	31,929	61,631
Depreciation and amortization	1,986	2,097	4,065	4,220
Capital expenditures			4,367	1,263
Operating Segments | Real Estate Brokerage
Segment Reporting Information [Line Items]
Revenues	364,359	391,975	673,259	664,751
Operating income (loss)	21,575	43,183	36,116	57,411
Stock-based compensation	934	0	1,859	0
Adjusted EBITDA	24,495	45,280	42,040	61,631
Adjusted EBITDA attributed to non-controlling interest	(71)	0	46	0
Adjusted EBITDA attributed to Douglas Elliman	24,424	45,280	42,086	61,631
Depreciation and amortization	1,986	2,097	4,065	4,220
Capital expenditures			4,367	1,263
Corporate and Other
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Operating income (loss)	(6,947)	0	(13,609)	0
Stock-based compensation	1,725	0	3,452	0
Adjusted EBITDA attributed to Douglas Elliman	(5,222)	0	(10,157)	0
Depreciation and amortization	$ 0	$ 0	0	0
Capital expenditures			$ 0	$ 0