REINSURANCE (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Premiums written
Net premiums written	$ 142,924us-gaap_PremiumsWrittenNet	$ 135,405us-gaap_PremiumsWrittenNet
Premiums earned
Net premiums earned	138,731	133,080
Losses and settlement expenses incurred
Net losses and settlement expenses incurred	75,785	88,969
Affiliated Entity [Member]
Premiums written
Assumed	113,145	107,048
Ceded	(91,728)	(92,901)
Premiums earned
Assumed	112,761	105,881
Ceded	(92,820)	(93,935)
Losses and settlement expenses incurred
Assumed	56,141	68,463
Ceded	(35,544)	(47,991)
Non Affiliated Entity [Member]
Premiums written
Direct	88,760	90,040
Assumed	38,948	40,302
Ceded	(6,201)	(9,084)
Premiums earned
Direct	89,852	91,075
Assumed	36,904	39,794
Ceded	(7,966)	(9,735)
Losses and settlement expenses incurred
Direct	35,437	48,010
Assumed	21,446	25,002
Ceded	(1,695)	(4,515)
Property and casualty insurance [Member]
Reinsurance Transactions For Insurance Companies, by Product Segment [Line Items]
Percentage of pool participation (in hundredths)	30.00%	30.00%
Premiums written
Net premiums written	108,796	102,513
Premiums earned
Net premiums earned	108,205	101,247
Losses and settlement expenses incurred
Net losses and settlement expenses incurred	56,675	67,726
Property and casualty insurance [Member] \| Affiliated Entity [Member]
Premiums written
Assumed	113,145	107,048
Ceded	(88,760)	(90,041)
Premiums earned
Assumed	112,761	105,881
Ceded	(89,852)	(91,075)
Losses and settlement expenses incurred
Assumed	55,898	68,172
Ceded	(35,437)	(48,010)
Property and casualty insurance [Member] \| Non Affiliated Entity [Member]
Premiums written
Direct	88,760	90,040
Assumed	971	788
Ceded	(5,320)	(5,322)
Premiums earned
Direct	89,852	91,075
Assumed	1,033	844
Ceded	(5,589)	(5,478)
Losses and settlement expenses incurred
Direct	35,437	48,010
Assumed	546	602
Ceded	231	(1,048)
Reinsurance [Member]
Premiums written
Net premiums written	34,128	32,892
Premiums earned
Net premiums earned	30,526	31,833
Losses and settlement expenses incurred
Net losses and settlement expenses incurred	19,110	21,243
Reinsurance [Member] \| Affiliated Entity [Member]
Premiums written
Assumed	0	0
Ceded	(2,968)	(2,860)
Premiums earned
Assumed	0	0
Ceded	(2,968)	(2,860)
Losses and settlement expenses incurred
Assumed	243	291
Ceded	(107)	19
Reinsurance [Member] \| Non Affiliated Entity [Member]
Premiums written
Direct	0	0
Assumed	37,977	39,514
Ceded	(881)	(3,762)
Premiums earned
Direct	0	0
Assumed	35,871	38,950
Ceded	(2,377)	(4,257)
Losses and settlement expenses incurred
Direct	0	0
Assumed	20,900	24,400
Ceded	$ (1,926)	$ (3,467)

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Amount of earned premiums assumed from other entities.

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