Summary of Significant Accounting Policies (Goodwill and Other Intangible Assets, Net) (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Indefinite-lived Intangible Assets [Line Items]
Goodwill	$ 70,406	$ 70,791
Intangibles with a finite life, net	4,002	5,657
Total goodwill and other intangible assets, net	261,919	263,959
Intangible asset associated with benefit under the MSA
Indefinite-lived Intangible Assets [Line Items]
Indefinite life intangibles:	107,511	107,511
Trademark - Douglas Elliman
Indefinite-lived Intangible Assets [Line Items]
Indefinite life intangibles:	$ 80,000	$ 80,000