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SECURITIES (Summary Of Available Sale Of Securities) (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018
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Information related to available for sale securities [Abstract] |  |
Amortized Cost | $ 590,688 | $ 591,621
Gross Unrealized Gain | 8,003 | 2,795
Gross Unrealized Losses | (3,138) | (8,867)
Fair Value | 595,553 | 585,549
US Treasury Securities [Member] |  |
Information related to available for sale securities [Abstract] |  |
Amortized Cost | 994 | 994
Gross Unrealized Gain | 0 | 0
Gross Unrealized Losses | 0 | (7)
Fair Value | 994 | 987
US Government Sponsored Agencies [Member] |  |
Information related to available for sale securities [Abstract] |  |
Amortized Cost | 4,066 | 4,435
Gross Unrealized Gain | 0 | 0
Gross Unrealized Losses | (77) | (85)
Fair Value | 3,989 | 4,350
State and Municipal Securities [Member] |  |
Information related to available for sale securities [Abstract] |  |
Amortized Cost | 226,924 | 217,964
Gross Unrealized Gain | 5,624 | 1,403
Gross Unrealized Losses | (286) | (2,708)
Fair Value | 232,262 | 216,659
Mortgage-backed securities residential [Member] |  |
Information related to available for sale securities [Abstract] |  |
Amortized Cost | 320,460 | 329,516
Gross Unrealized Gain | 2,378 | 1,392
Gross Unrealized Losses | (2,559) | (5,496)
Fair Value | 320,279 | 325,412
Mortgage-backed securities commercial [Member] |  |
Information related to available for sale securities [Abstract] |  |
Amortized Cost | 38,244 | 38,712
Gross Unrealized Gain | 1 | 0
Gross Unrealized Losses | (216) | (571)
Fair Value | $ 38,029 | $ 38,141

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- Definition 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=82897076&loc=d3e27161-111563 + Details
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