SECURITIES - Fair Value and Related Gross Unrealized Gains and Losses (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Available for sale securities
Amortized Cost	$ 991,538	$ 905,857
Gross Unrealized Gains	33,751	21,972
Gross Unrealized Losses	(241)	(2,550)
Fair Value	1,025,048	925,279
U. S. government agency
Available for sale securities
Amortized Cost	426	499
Gross Unrealized Gains	10	5
Fair Value	436	504
State and municipal
Available for sale securities
Amortized Cost	339,261	332,999
Gross Unrealized Gains	20,529	17,802
Gross Unrealized Losses	(93)	(68)
Fair Value	359,697	350,733
Mortgage-backed securities-residential (Government Sponsored Entity)
Available for sale securities
Amortized Cost	446,989	332,525
Gross Unrealized Gains	9,478	2,199
Gross Unrealized Losses	(3)	(644)
Fair Value	456,464	334,080
Collateralized mortgage obligations (Government Sponsored Entity)
Available for sale securities
Amortized Cost	192,100	228,621
Gross Unrealized Gains	3,664	1,966
Gross Unrealized Losses	(145)	(1,838)
Fair Value	195,619	228,749
Equity securities
Available for sale securities
Amortized Cost	6,233	4,689
Fair Value	6,233	4,689
Other securities
Available for sale securities
Amortized Cost	6,529	6,524
Gross Unrealized Gains	70
Fair Value	$ 6,599	$ 6,524

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 25
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=65884222&loc=d3e22054-111558

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (aa)
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27232-111563

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
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-URI http://asc.fasb.org/extlink&oid=66010992&loc=d3e26610-111562

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
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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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
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-Section 50
-Paragraph 2
-Subparagraph (c)
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This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.2)
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