Investment in Life Insurance Policies - Estimated Future Premium Payments and Servicing Fees (Details) $ in Thousands	Jun. 30, 2020 USD ($)
Premiums
Life Settlement Contracts, Investment Method, Premiums to be Paid, Fiscal Year Maturity [Abstract]
Six months ending December 31, 2020	$ 31,589
2021	82,102
2022	94,621
2023	106,489
2024	115,715
2025	128,495
Total	559,011
Servicing
Life Settlement Contracts, Investment Method, Premiums to be Paid, Fiscal Year Maturity [Abstract]
Six months ending December 31, 2020	823
2021	1,647
2022	1,647
2023	1,647
2024	1,647
2025	1,647
Total	9,058
Total
Life Settlement Contracts, Investment Method, Premiums to be Paid, Fiscal Year Maturity [Abstract]
Six months ending December 31, 2020	32,412
2021	83,749
2022	96,268
2023	108,136
2024	117,362
2025	130,142
Total	$ 568,069

Amount of life insurance premiums anticipated to be paid to keep the life settlement contracts accounted for under the investment method in force.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 325
-SubTopic 30
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=73718008&loc=d3e42708-111610

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Amount of life insurance premium accounted for under investment method to be paid in next fiscal year following current fiscal year to keep life settlement contract in force. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of life insurance premium accounted for under investment method to be paid in remainder of current fiscal year to keep life settlement contract in force.

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Amount of life insurance premium accounted for under investment method to be paid in fifth fiscal year following current fiscal year to keep life settlement contract in force. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of life insurance premium accounted for under investment method to be paid in fourth fiscal year following current fiscal year to keep life settlement contract in force. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of life insurance premium accounted for under investment method to be paid in third fiscal year following current fiscal year to keep life settlement contract in force. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of life insurance premium accounted for under investment method to be paid in second fiscal year following current fiscal year to keep life settlement contract in force. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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