SECURITIES (Summary Of Available Sale Of Securities) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2016	Dec. 31, 2015
Information related to available for sale securities [Abstract]
Amortized Cost	$ 471,600	$ 471,903
Gross Unrealized Gain	14,092	8,894
Gross Unrealized Losses	(429)	(2,726)
Fair Value	485,263	478,071
US Treasury Securities [Member]
Information related to available for sale securities [Abstract]
Amortized Cost	988	988
Gross Unrealized Gain	46	15
Gross Unrealized Losses	0	0
Fair Value	1,034	1,003
US Government Sponsored Agencies [Member]
Information related to available for sale securities [Abstract]
Amortized Cost	7,132	7,178
Gross Unrealized Gain	59	19
Gross Unrealized Losses	0	(77)
Fair Value	7,191	7,120
Agency Residential Mortgage-Backed Securities [Member]
Information related to available for sale securities [Abstract]
Amortized Cost	350,450	357,984
Gross Unrealized Gain	9,539	5,087
Gross Unrealized Losses	(262)	(2,399)
Fair Value	359,727	360,672
State and Municipal Securities [Member]
Information related to available for sale securities [Abstract]
Amortized Cost	113,030	105,753
Gross Unrealized Gain	4,448	3,773
Gross Unrealized Losses	(167)	(250)
Fair Value	$ 117,311	$ 109,276

This item represents the cost of debt 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.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (aa)
-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563

Reference 2: 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)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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

+ References

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=51813488&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=27724398&loc=d3e27232-111563

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=49167202&loc=d3e26610-111562

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Amount of unrealized gain before deducting unrealized loss on investments in debt and equity securities classified as available-for-sale securities.

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Amount of unrealized loss before deducting unrealized gain on investments in available-for-sale securities.

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