SECURITIES (Gross Realized Gain (Loss)) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Available for Sale Securities sold:
Proceeds from the sale of securities available for sale	$ 1,097,378	$ 1,628,467	$ 727,895
Gross security gains	13,208	11,774	3,661
Gross security losses	$ 5,616	$ 4,115	$ 2,576

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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).

+ References

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-Publisher FASB
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- Definition

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).

+ References

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- Definition

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).

+ References

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-Publisher FASB
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