Quarterly report pursuant to Section 13 or 15(d)

SECURITIES (Schedule of Gross Unrealized Losses and Fair Value of Investments) (Details)

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SECURITIES (Schedule of Gross Unrealized Losses and Fair Value of Investments) (Details) - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2015
Dec. 31, 2014
Schedule of gross unrealized losses and fair value of investments    
Less than 12 months, Fair value $ 255,662 $ 124,731
Less than 12 months, Unrealized Losses (2,652) (724)
More than 12 Months, Fair value 59,550 96,404
More than 12 Months, Unrealized Losses (1,086) (1,134)
Fair value, Total 315,212 221,135
Unrealized Losses, Total (3,738) (1,858)
US Government Agencies Debt Securities [Member]    
Schedule of gross unrealized losses and fair value of investments    
Less than 12 months, Fair value   7,055
Less than 12 months, Unrealized Losses   (25)
Fair value, Total   7,055
Unrealized Losses, Total   (25)
Obligations of States and Political Subdivisions [Member]    
Schedule of gross unrealized losses and fair value of investments    
Less than 12 months, Fair value 46,361 13,602
Less than 12 months, Unrealized Losses (1,107) (93)
More than 12 Months, Fair value 6,491 42,514
More than 12 Months, Unrealized Losses (386) (628)
Fair value, Total 52,852 56,116
Unrealized Losses, Total (1,493) (721)
Mortgage Backed Securities [Member]    
Schedule of gross unrealized losses and fair value of investments    
Less than 12 months, Fair value 175,493 60,151
Less than 12 months, Unrealized Losses (1,344) (362)
More than 12 Months, Fair value 29,589 49,581
More than 12 Months, Unrealized Losses (421) (436)
Fair value, Total 205,082 109,732
Unrealized Losses, Total (1,765) (798)
Corporate Bonds and Other Securities [Member]    
Schedule of gross unrealized losses and fair value of investments    
Less than 12 months, Fair value 33,808 43,923
Less than 12 months, Unrealized Losses (201) (244)
More than 12 Months, Fair value 23,470 4,309
More than 12 Months, Unrealized Losses (279) (70)
Fair value, Total 57,278 48,232
Unrealized Losses, Total $ (480) $ (314)