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Income Taxes (Tables)
 9 Months Ended
Sep. 30, 2017
Income Tax Disclosure [Abstract]  
Schedule of the provision for income taxes
The provision for income taxes is comprised of the following:
 
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
 
2017
 
2016
 
2017
 
2016
Current expense (benefit)
 
$
27,585


$
(1,399
)
 
$
58,845

 
$
41,725

Deferred (benefit) expense
 
(5,897
)
 
16,694

 
6,128

 
37,318

Total income tax provision
 
$
21,688

 
$
15,295

 
$
64,973

 
$
79,043
Schedule of reconciliation between the statutory federal income tax rate and the Company's effective federal income tax rate
The following table presents a reconciliation between the statutory federal income tax rate and the Company’s effective income tax rate:
 
 
Nine Months Ended September 30,
 
 
2017
 
2016
Statutory federal income tax rate
 
35.0
 %
 
35.0
 %
Income tax effect of:
 
 

 
 

Investment income not subject to federal tax
 
(3.9
)%
 
(2.7
)%
Tax credits
 
(0.3
)%
 
(7.3
)%
State income taxes, net of federal benefit
 
2.8
 %
 
2.5
 %
Other, net
 
(0.5
)%
 
(0.4
)%
Effective income tax rate
 
33.1
 %
 
27.1
 %