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INCOME TAXES
 6 Months Ended
Jun. 30, 2017
Income Tax Disclosure [Abstract]  
INCOME TAXES
INCOME TAXES

The Company's effective income tax rate for the three and six months ended June 30, 2017 and 2016 was as follows:
 
 
Three Months Ended 
 June 30,
 
Six Months Ended 
 June 30,
 
 
2017
 
2016
 
2017
 
2016
Income tax expense
 
$
4,721

 
$
4,258

 
$
9,065

 
$
7,700

Income before income tax expense
 
$
14,955

 
$
13,874

 
$
29,375

 
$
25,962

Effective tax rate
 
31.6
%
 
30.7
 %
 
30.9
 %
 
29.7
 %
Discrete period item(s) — impact on effective tax rate:
 
 
 
 
 
 
 
 
Windfall tax benefits, net(1)
 
—
%
 
(0.5
)%
 
(0.5
)%
 
(1.4
)%
BOLI death benefit income (non-taxable)
 
—
%
 
(1.0
)%
 
—
 %
 
(0.5
)%

(1)
Represents the net windfall tax benefits generated upon vesting of share-based awards issued and exercise of stock options that were accounted for within income tax expense on the consolidated statements of income as a discrete period item.