SECURITIES (Gross Realized Gains and Losses on the Sale of Securities) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Gross realized gains	$ 9,530	$ 4,221	$ 1,170
Gross realized losses	(1,855)	(3,838)	(370)
Gains on securities transactions, net	7,675	383	800
Proceeds from sales of securities	$ 514,070	$ 515,764	$ 139,046

Amount of unrealized and realized gain (loss) on investment in debt and equity securities.

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Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of realized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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