Investments - Scheduled of Principal Payments Due under Loans Receivable (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Investments [Abstract]
July 1 - December 31, 2020	$ 98
2021	207
2022	220
2023	236
2024	252
Thereafter	98,198
Total	$ 99,211	$ 89,628