Organization and Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Accounting Policies [Abstract]
Cash	$ 366,023	$ 295,602
Cash collateral posted to counterparties	55,284	14,133
Total cash including cash posted to counterparties shown on consolidated statement of cash flows	$ 421,307	$ 309,735	$ 136,230	$ 92,421