Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Restricted cash	$ 47,745	$ 53,726
Notes receivable, net	$ 440,854	$ 439,167
Common Stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	74,445,923	74,445,923
Common stock, shares outstanding	74,445,923	74,445,923
Variable Interest Entity, Primary Beneficiary [Member]
Restricted cash	$ 19,018	$ 28,400
Notes receivable, net	$ 308,042	$ 341,975