Condensed Consolidated Statements Of Financial Condition (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Restricted cash	$ 25,459	$ 50,266
Notes receivable, net	404,232	448,568
Real estate held-for-sale	$ 11,354	$ 11,297
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	10,000,000	10,000,000
Variable Interest Entity, Primary Beneficiary [Member]
Restricted cash	$ 16,372	$ 22,534
Notes receivable, net	$ 288,358	$ 292,590
Class A Common Stock [Member]
Common Stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	30,000,000	30,000,000
Common stock, shares issued	15,132,748	15,106,067
Common stock, shares outstanding	15,132,748	15,106,067
Class B Common Stock [Member]
Common Stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	4,000,000	4,000,000
Common stock, shares issued	3,164,889	3,191,571
Common stock, shares outstanding	3,164,889	3,191,571