Significant Accounting Policies - Narrative (Details) - USD ($)	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Life Partners IRA Holder Partnership, Llc
Entity Information [Line Items]
Equity income (loss) from Life Partners Position Holder Trust	$ 38,353,720	$ (48,588,366)

Amount of income (loss) for proportionate share of equity method investee's income (loss).

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