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Securities (Schedule of Securities with Unrealized Losses) (Details) - USD ($) $ in Thousands | Jun. 30, 2019 | Dec. 31, 2018
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Debt Securities, Available-for-sale [Line Items] |  |
Less than 12 Months Fair Value | $ 15,043 | $ 94,322
Less than 12 Months Unrealized Loss | (66) | (887)
12 Months or More Fair Value | 265,382 | 405,289
12 Months or More Unrealized Loss | (3,085) | (13,192)
Total Fair Value | 280,425 | 499,611
Total Unrealized Loss | (3,151) | (14,079)
Obligations of State and Political Subdivisions |  |
Debt Securities, Available-for-sale [Line Items] |  |
Less than 12 Months Fair Value | 4,889 | 37,936
Less than 12 Months Unrealized Loss | (30) | (286)
12 Months or More Fair Value | 1,331 | 49,071
12 Months or More Unrealized Loss | (10) | (1,037)
Total Fair Value | 6,220 | 87,007
Total Unrealized Loss | (40) | (1,323)
MBS/CMO - Residential |  |
Debt Securities, Available-for-sale [Line Items] |  |
Less than 12 Months Fair Value | 10,154 | 56,386
Less than 12 Months Unrealized Loss | (36) | (601)
12 Months or More Fair Value | 264,051 | 356,218
12 Months or More Unrealized Loss | (3,075) | (12,155)
Total Fair Value | 274,205 | 412,604
Total Unrealized Loss | $ (3,111) | $ (12,756)

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