FAIR VALUE (Tables)

3 Months Ended

Mar. 31, 2017

FAIR VALUE [Abstract]

Financial Instruments Measured at Fair Value

	March 31, 2017
	Level 1		Level 2		Level 3		Total
	(in thousands)
Debt securities:
United States government obligations and authorities	$	37,790	$	37,605	$	—	$	75,395
Obligations of states and political subdivisions		—		86,974		—		86,974
Corporate		—		198,047		—		198,047
International		—		15,554		—		15,554
		37,790		338,180		—		375,970
Equity securities		44,003		—		—		44,003
Total investments	$	81,793	$	338,180	$	—	$	419,973

	December 31, 2016
	Level 1		Level 2		Level 3		Total
	(in thousands)
Debt securities:
United States government obligations and authorities	$	36,560	$	25,645	$	—	$	62,205
Obligations of states and political subdivisions		—		151,183		—		151,183
Corporate		—		149,505		—		149,505
International		—		11,863		—		11,863
		36,560		338,196		—		374,756
Equity securities		28,960		415		—		29,375
Total investments	$	65,520	$	338,611	$	—	$	404,131