REINSURANCE (Details) - 10K (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Reinsurance
Maximum amount beyond which net loss on any individual risk is limited through the purchase of reinsurance	$ 3,000,000
WRITTEN
Direct	787,267,000	770,142,000	709,107,000
Reinsurance assumed	76,581,000	73,053,000	75,692,000
Reinsurance ceded	(160,696,000)	(176,873,000)	(191,713,000)
Net	703,152,000	666,322,000	593,086,000
EARNED
Direct	781,640,000	741,569,000	679,124,000
Reinsurance assumed	72,878,000	78,891,000	77,597,000
Reinsurance ceded	(167,143,000)	(189,658,000)	(180,150,000)
Net amount	687,375,000	630,802,000	576,571,000
LOSSES AND SETTLEMENT EXPENSES INCURRED
Direct	315,226,000	279,358,000	282,859,000
Reinsurance assumed	61,923,000	72,508,000	69,830,000
Reinsurance ceded	(80,540,000)	(92,065,000)	(81,044,000)
Net	296,609,000	259,801,000	271,645,000
Maximum
Reinsurance
Reinsurance retentions	8,800,000
Minimum
Reinsurance
Reinsurance retentions	$ 1,000,000