SECURITIES - Summary of Available For Sale Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Information related to available for sale securities
Amortized Cost	$ 593,882	$ 591,009
Gross Unrealized Gain	30,645	17,841
Gross Unrealized Losses	(202)	(617)
Fair Value	624,325	608,233
Mortgage-backed securities residential [Member]
Information related to available for sale securities
Amortized Cost	280,674	283,817
Gross Unrealized Gain	12,766	4,751
Gross Unrealized Losses	(170)	(387)
Fair Value	293,270	288,181
Mortgage-backed securities commercial [Member]
Information related to available for sale securities
Amortized Cost	41,003	36,712
Gross Unrealized Gain	811	262
Gross Unrealized Losses	0	(2)
Fair Value	41,814	36,972
State and Municipal Securities [Member]
Information related to available for sale securities
Amortized Cost	272,205	270,480
Gross Unrealized Gain	17,068	12,828
Gross Unrealized Losses	(32)	(228)
Fair Value	$ 289,241	$ 283,080

Amount before tax of increase (decrease) in accumulated equity from transactions and other events and circumstances from non-owner sources, including portion attributable to noncontrolling interest. Excludes net income (loss), and accumulated changes in equity from transactions resulting from investments by owners (distributions to owners).

No definition available.

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27161-111563

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=118942338&loc=SL82898722-210454

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Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

+ References

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
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-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=118942338&loc=SL82898722-210454

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-Name Accounting Standards Codification
-Topic 320
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-Section 45
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-Subparagraph (b)
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