INVESTMENTS IN DEBT AND EQUITY SECURITIES (Gross Realized Gains and Losses) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Gain (Loss) on Investments [Line Items]
Gross realized gains on sales of available-for-sale securities	$ 8,637	$ 0	$ 9,197	$ 2,010
Gross realized losses on sales of available-for-sale securities	(1,479)	0	(1,996)	(730)
Other-than-temporary impairment	0	(1)	0	(1)
Net realized gain (loss) on investment securities	7,158	(1)	7,201	1,279
Provision (benefit) for income taxes on net realized gain (loss) on investment securities	$ 2,947	$ 0	$ 2,965	$ 527