14. LF EQUITY INCOME FUND PORTFOLIO INVESTMENT (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Change in fair value of investment	$ (3,081)	$ (4,266)	$ 3,704	$ 9,622
Gain on sale of prepaid investment and derivative	2,845	0	2,845	0
Net realized and unrealized gain (loss) on investment	(3,081)	(5,181)	942	1,475
Trading Securites Lf Fund Public Securities [Member]
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Change in fair value of investment	3,403	0	2,334	0
Equity Securities Derivative [Member]
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Change in fair value of investment	10,651	0	17,542	0
Equity Securities L F Fund Private Securities [Member]
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Change in fair value of investment	80,896	0	80,896	0
Equity Securities Forward Contract [Member]
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Change in fair value of investment	(74,662)	0	0	0
Trading Securities L F Fund Public Securities [Member]
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Gain (loss) on sale of trading securities	1,908	0	(4,202)	0
Trading Securites Lf Fund Securities [Member]
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Net realized and unrealized gain (loss) on investment	$ 25,041	$ 0	$ 99,415	$ 0

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Amount of realized and unrealized gain (loss) on investment.

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