Investment in Life Insurance Policies - Summary of Policies by Estimated Life Expectancy (Details) $ in Thousands	Jun. 30, 2020 USD ($) Policies extensionTerm	Dec. 31, 2019 USD ($) Policies extensionTerm
Number of Policies
Six months ending December 31, 2020 | extensionTerm	4	8
2021 | Policies	30	55
2022 | Policies	88	90
2023 | Policies	106	128
2024 | Policies	120	109
2025 | Policies	114	113
Thereafter | Policies	640	648
Totals | Policies	1,102	1,151
Estimated Fair Value
Six months ending December 31, 2020	$ 3,810	$ 5,869
2021	37,965	62,061
2022	92,509	89,074
2023	102,952	123,352
2024	125,323	103,111
Estimated fair value, 2025	82,722	74,223
Thereafter	349,425	338,349
Totals	794,706	796,039
Face Value
Six months ending December 31, 2020	3,875	6,342
2021	45,090	79,879
2022	133,994	138,723
2023	177,842	222,369
2024	234,937	217,053
2025	189,756	171,961
Thereafter	1,175,332	1,184,646
Totals	$ 1,960,826	$ 2,020,973