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INCOME TAXES (Tables)
 6 Months Ended
Jun. 30, 2015
Income Tax Disclosure [Abstract]  
Reconciliation of income tax expense (benefit)
The actual income tax expense (benefit) for the three and six months ended June 30, 2015 and 2014 differed from the “expected” income tax expense for those periods (computed by applying the United States federal corporate tax rate of 35 percent to income before income tax expense) as follows:
 
 
Three months ended 
 June 30,
 
Six months ended 
 June 30,
($ in thousands)
 
2015
 
2014
 
2015
 
2014
Computed "expected" income tax expense
 
$
4,156

 
$
95

 
$
14,634

 
$
5,306

Increases (decreases) in tax resulting from:
 
 
 
 
 
 
 
 
Tax-exempt interest income
 
(687
)
 
(858
)
 
(1,385
)
 
(1,802
)
Dividends received deduction
 
(285
)
 
(258
)
 
(543
)
 
(478
)
Proration of tax-exempt interest and dividends received deduction
 
146

 
167

 
289

 
342

Other, net
 
(203
)
 
110

 
(261
)
 
182

Total income tax expense (benefit)
 
$
3,127

 
$
(744
)
 
$
12,734

 
$
3,550