XML 62 R46.htm IDEA: XBRL DOCUMENT v3.20.4
Organization and Summary of Significant Accounting Policies - Investments and Lease Costs (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Ownership interest 50.00%  
Previously held interest 50.00%  
Amortization of initial direct costs associated with leases $ 1.5 $ 2.0