INVESTMENTS (Net Unrealized Gains (Losses) Still Held (Details) - Equity Securities - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Debt Securities, Available-for-sale [Line Items]
Equity Securities, FV-NI, Gain (Loss), Total	$ (99)	$ 1,922	$ 3,526	$ 3,132
Less: Net realized and unrealized gains (losses)	1,012	409	394	674
Net unrealized gains (losses) still held as of the end-of-period	$ (1,111)	$ 1,513	$ 3,132	$ 2,458