INVESTMENTS (Tables)

12 Months Ended

Dec. 31, 2018

INVESTMENTS

Summary of investment portfolio

									Other
	Opening		Additions		Net gains		Disposals		comprehensive		Unrealized		Fair value
	balance		during		(loss) on		during		(loss) income		gains (loss) on		end of the
As of December 31, 2018	(January 1)		year		securities sold		year		(pre-tax)		securities held		year
Marketable equity securities	$	6,404	$	1,882	$	(767)	$	(2,895)	$	—	$	(1,906)	$	2,718
Warrants		1,567		201		—		(704)		—		(651)		413
Investments	$	7,971	$	2,083	$	(767)	$	(3,599)	$	—	$	(2,557)	$	3,131

									Other
	Opening		Additions		Realized		Disposals		comprehensive		Unrealized		Fair value
	balance		during		(loss)		during		(loss) income		(loss) gain		end of the
As of December 31, 2017	(January 1)		year		gain		year		(pre-tax)		& OTTI		year
Marketable equity securities	$	6,749	$	—	$	840	$	(2,163)	$	1,334	$	(356)	$	6,404
Warrants		1,794		—		—		—		—		(227)		1,567
Investments	$	8,543	$	—	$	840	$	(2,163)	$	1,334	$	(583)	$	7,971