ACQUISITION (Details) $ in Thousands			3 Months Ended
	Feb. 29, 2016 USD ($)	Mar. 04, 2015 USD ($) item	Mar. 31, 2016 USD ($)	Mar. 31, 2015 USD ($)
Business acquisition
Finite-lived Intangible Assets Acquired			$ 1,200
Amount of investment				$ 1,711
Equity in earnings of unconsolidated investees			3,751	4,194
Cash consideration for purchase of agency			850
Associations Liability Insurance Agency
Business acquisition
Finite-lived Intangible Assets Acquired	$ 1,200
Total business acquisition consideration	1,200
Cash consideration for purchase of agency	900
Present value of an earn-out agreement to be paid in future years	$ 300
Prime Holdings Insurance Services, Inc. (Prime)
Business acquisition
Amount of investment		$ 1,700
Equity ownership interest (as a percent)		27.00%
Equity in earnings of unconsolidated investees			$ 500	$ 500
Number of insurance subsidiaries | item		2