INVESTMENTS Debt Securities and Common Stock (Details)	9 Months Ended
	Sep. 30, 2016 USD ($) security position	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Securities in unrealized loss positions
Unrealized Loss	$ 6,340,000		$ 19,252,000
Debt securities
Securities in unrealized loss positions
Number of unrealized loss positions | position	130
Number of securities in unrealized loss positions for 12 months or longer | security	58
Unrealized Loss	$ 5,400,000
Unrealized losses as percentage of fixed income portfolio cost basis	0.30%
Other than Temporary Impairment Losses recognized in earnings	$ 100,000	$ 0
Other than Temporary Impairment Losses recognized in other comprehensive earnings	$ 0	0
Common Stock
Securities in unrealized loss positions
Number of unrealized loss positions | position	3
Number of securities in unrealized loss positions for 12 months or longer | security	1
Unrealized Loss	$ 900,000
Other-than-temporary impairment (OTTI) losses	$ 0	$ 0