POLICY ACQUISITION COSTS (Details) - 10K (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Policy acquisition costs deferred and amortized to income
Deferred policy acquisition costs (DAC), beginning of year	$ 61,508	$ 52,344	$ 52,105
Deferred:
Direct commissions	142,887	134,770	129,765
Premium taxes	10,727	10,442	9,528
Ceding commissions	(20,483)	(20,186)	(29,010)
Net deferred	133,131	125,026	110,283
Amortized	129,516	115,862	110,044
DAC/VOBA*, end of year	65,123	61,508	52,344
Policy acquisition costs:
Amortized to expense - DAC	129,346	115,442	107,482
Amortized to expense - VOBA	170	420	2,562
Period costs:
Ceding commission - contingent	(1,956)	(2,126)	(1,940)
Other underwriting expenses	101,723	96,915	88,258
Total policy acquisition costs	$ 229,283	$ 210,651	$ 196,362