Discontinued Operations (Narrative) (Details) $ in Thousands		12 Months Ended
	Dec. 29, 2021 shares	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Shares issued ratio	2
Other, net		$ 26,119	$ 2,746	$ 10,687
Douglas Elliman Realty, LLC | Indemnification Agreement
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Other, net			$ 589
Douglas Elliman
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Shares issued ratio	1
Distribution | Douglas Elliman
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Shares issued ratio	0.5
Shares issued (in shares) | shares	77,720,159