14. LF EQUITY INCOME FUND PORTFOLIO INVESTMENT (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 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	$ 2,677	$ 6,980	$ 6,785	$ 13,888
Loss on sale of investment			(2,762)	(7,232)
Net realized and unrealized gain (loss) on investment	3,231	5,338	4,023	6,656
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	(1,069)	0	(1,069)	0
Loss on sale of investment	(6,110)	0	(6,110)	0
Equity Securities Forward Contract Public [Member]
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Change in fair value of investment	6,891	0	6,891	0
Equity Securities Forward Contract Private [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	74,662	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	$ 74,374	$ 0	$ 74,374	$ 0