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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2013
Income Tax Disclosure [Abstract]  
Income tax benefits eliminated from income tax balances
The following table sets forth the income tax benefits which were eliminated from SunCoke Energy’s income tax balances (dollars in millions):
 
 
Years Ended December 31,
 
 
2012
 
2011
 
 
(Dollars in millions)
Nonconventional fuel credit carryforward
 
$
39.9

 
$
54.2

Gasification investment tax credit carryforward
 

 
40.7

Federal net operating loss carryback
 

 
26.9

Federal, state and foreign net operating losses and tax credit carryforwards
 
45.9

 
22.0

Other
 

 
(0.4
)
Total
 
$
85.8

 
$
143.4

The components of income before income tax expense
The components of income before income tax expense are as follows:
 
Years Ended December 31,
 
2013
 
2012
 
2011
 
(Dollars in millions)
Domestic
$
46.5

 
$
118.1

 
$
59.8

Foreign
12.5

 
7.8

 
6.3

Total
$
59.0

 
$
125.9

 
$
66.1

Components of income tax expense
The components of income tax expense are as follows:
 
Years Ended December 31,
 
2013
 
2012
 
2011
 
(Dollars in millions)
Income taxes currently payable (receivable):

 

 

U.S. federal
$
2.3

 
$
(15.7
)
 
$
(16.8
)
State
0.1

 
2.1

 
(3.2
)
Foreign
2.7

 
2.7

 
3.2

Total taxes currently payable (receivable)
5.1

 
(10.9
)
 
(16.8
)
Deferred tax (benefit):

 

 

U.S. federal
(6.3
)
 
36.9

 
20.0

State
7.9

 
(2.6
)
 
4.0

Total deferred tax
1.6

 
34.3

 
24.0

Total
$
6.7

 
$
23.4

 
$
7.2

Reconciliation of income tax expense
The reconciliation of the income tax expense at the U.S. statutory rate to the income tax expense is as follows:
 
Years Ended December 31,
 
2013
 
2012
 
2011
 
(Dollars in millions)
 
 
Income tax expense at 35 percent U.S. statutory rate
$
20.7

 
35.0
 %
 
$
44.1

 
35.0
 %
 
$
23.1

 
35.0
 %
Increase (reduction) in income taxes resulting from:
 
 
 
 
 
 
 
 
 
 
 
Income attributable to noncontrolling interests(1)
(8.8
)
 
(14.9
)%
 
(1.3
)
 
(1.0
)%
 
0.6

 
0.9
 %
Nonconventional fuel credit
(9.5
)
 
(16.0
)%
 
(16.0
)
 
(12.8
)%
 
(19.8
)
 
(30.1
)%
State and other income taxes, net of federal income tax effects
3.2

 
5.4
 %
 
(0.3
)
 
(0.2
)%
 
(0.8
)
 
(1.2
)%
Percentage depletion

 
 %
 
(1.3
)
 
(1.0
)%
 
(0.2
)
 
(0.3
)%
Return-to-provision adjustments
(1.7
)
 
(2.9
)%
 
(1.7
)
 
(1.4
)%
 
(1.2
)
 
(1.8
)%
Change in valuation allowance
2.0

 
3.4
 %
 

 
 %
 
1.3

 
2.0
 %
Impact of tax sharing agreement
0.7

 
1.2
 %
 

 
 %
 

 
 %
Domestic production activity deduction

 
 %
 
(0.8
)
 
(0.6
)%
 
4.2

 
6.4
 %
Other
0.1

 
0.2
 %
 
0.7

 
0.6
 %
 

 
 %
 
$
6.7

 
11.4
 %
 
$
23.4

 
18.6
 %
 
$
7.2

 
10.9
 %
(1)
No income tax expense is reflected in the Combined and Consolidated Statements of Income for partnership income attributable to noncontrolling interests.
Tax effects of temporary differences that comprise the net deferred income tax liability
The tax effects of temporary differences that comprise the net deferred income tax liability are as follows:
 
December 31,
 
2013
 
2012
 
(Dollars in millions)
Deferred tax assets:
 
Retirement benefit liabilities
$
13.4

 
$
18.2

Black lung benefit liabilities
12.5

 
13.4

Share-based compensation
5.0

 

Federal tax credit carryforward
19.3

 
8.4

State tax credit carryforward, net of federal income tax effects
8.6

 
7.5

State net operating loss carryforward, net of federal income tax effects
5.3

 
2.0

Other liabilities not yet deductible
10.9

 
12.3

Other

 
6.2

Total deferred tax assets
75.0

 
68.0

Less valuation allowance
(3.3
)
 
(1.3
)
Deferred tax asset, net
71.7

 
66.7

Deferred tax liabilities:

 

Properties, plants and equipment
(141.1
)
 
(326.7
)
Investment in partnerships
(294.6
)
 
(98.9
)
Total deferred tax liabilities
(435.7
)
 
(425.6
)
Net deferred tax liability
$
(364.0
)
 
$
(358.9
)
Net deferred income tax liability classified in consolidated balance sheets
The net deferred income tax liability was classified in the consolidated balance sheets as follows:
 
December 31,
 
2013
 
2012
 
(Dollars in millions)
Current asset
$
12.6

 
$
2.6

Noncurrent liability
(376.6
)
 
(361.5
)
Net deferred tax liability
$
(364.0
)
 
$
(358.9
)