SECURITIES - Fair Value and Related Gross Unrealized Gains and Losses (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Available for sale securities
Amortized Cost	$ 1,002,803	$ 905,857
Gross Unrealized Gains	13,641	21,972
Gross Unrealized Losses	(8,904)	(2,550)
Fair Value	1,007,540	925,279
U. S. government agency
Available for sale securities
Amortized Cost	951	499
Gross Unrealized Gains	4	5
Fair Value	955	504
State and municipal
Available for sale securities
Amortized Cost	361,335	332,999
Gross Unrealized Gains	10,799	17,802
Gross Unrealized Losses	(2,848)	(68)
Fair Value	369,286	350,733
Mortgage-backed securities-residential (Government Sponsored Entity)
Available for sale securities
Amortized Cost	450,006	332,525
Gross Unrealized Gains	1,253	2,199
Gross Unrealized Losses	(4,629)	(644)
Fair Value	446,630	334,080
Collateralized mortgage obligations (Government Sponsored Entity)
Available for sale securities
Amortized Cost	179,314	228,621
Gross Unrealized Gains	1,514	1,966
Gross Unrealized Losses	(1,427)	(1,838)
Fair Value	179,401	228,749
Equity securities
Available for sale securities
Amortized Cost	4,670	4,689
Fair Value	4,670	4,689
Other securities
Available for sale securities
Amortized Cost	6,527	6,524
Gross Unrealized Gains	71
Fair Value	6,598	6,524
Parent Company
Available for sale securities
Fair Value	$ 130	$ 149

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
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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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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
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-Section 50
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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.

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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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