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11. LF EQUITY INCOME FUND PORTFOLIO INVESTMENT (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2021 | Mar. 31, 2020
Net realized and unrealized gain (loss) on investment | $ 839 | $ 792
Equity Securites - LF Fund Securities [Member] |  |
Change in fair value of investment | 37,176 | 0
LF Fund securities [Member] |  |
Net realized and unrealized gain (loss) on investment | $ 37,176 | $ 0

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