FAIR VALUE MEASUREMENT AND FAIR VALUE OF FINANCIAL INSTRUMENTS (Details 3) - Embedded derivative liabilities - Fair Value, Measurements, Recurring - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Reconciliation of liabilities measured at fair value on a recurring basis using significant unobservable inputs
Beginning balance		$ (3,412)	$ (3,398)	$ (3,392)	$ (3,655)
Total gains or (losses) for the period:
Included in earnings	[1]		36	(20)	293
Purchases, issues, sales, settlements:
Settlements		$ 3,412		$ 3,412
Ending balance			(3,362)		(3,362)
Changes in unrealized losses (gains) included in earnings relating to assets and liabilities held at period-end			$ (36)		$ (293)

[1] Realized gains or losses of corporate debt securities and embedded derivative liabilities are included in net gains on sales of investment securities and other operating expense, respectively, in the consolidated statements of income.