Organization, Basis of Presentation and Summary of Significant Accounting Policies (Details) - Unamortized Balances of Deferred Charges - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Organization, Basis of Presentation and Summary of Significant Accounting Policies (Details) - Unamortized Balances of Deferred Charges [Line Items]
Deferred charges, net	$ 33,857	$ 37,167
Lease Origination Costs
Organization, Basis of Presentation and Summary of Significant Accounting Policies (Details) - Unamortized Balances of Deferred Charges [Line Items]
2019	7,041
2020	5,802
2021	4,867
2022	4,029
2023	3,098
Thereafter	9,020
Deferred charges, net	$ 33,857