Organization and Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Accounting Policies [Abstract]
Cash and cash equivalents	$ 51,411	$ 62,582
Restricted cash	59,204	71,648
Total cash, cash equivalents, and restricted cash shown on consolidated statement of cash flows	$ 110,615	$ 134,230	$ 142,663	$ 88,704