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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2017
Income Tax Disclosure [Abstract]  
Components Comprising Deferred Tax Assets and Liabilities
The components comprising our deferred tax assets and liabilities are as follows:
 
December 31,
(In thousands)
2017
 
2016
Deferred tax assets
 
 
 
Federal net operating loss carryforwards
$
110,350

 
$
201,978

State net operating loss carryforwards
45,096

 
38,715

Share-based compensation
14,226

 
26,344

Other
33,001

 
61,289

Gross deferred tax assets
202,673

 
328,326

Valuation allowance
(28,821
)
 
(28,402
)
Deferred tax assets, net of valuation allowance
173,852

 
299,924

 
 
 
 
Deferred tax liabilities
 
 
 
Difference between book and tax basis of property and intangible assets
219,090

 
337,654

State tax liability
34,035

 
31,443

Other
9,802

 
14,807

Gross deferred tax liabilities
262,927

 
383,904

Deferred tax liabilities, net
$
89,075

 
$
83,980

Summary of Provision (Benefit) for Income Taxes
A summary of the provision (benefit) for income taxes is as follows:
 
Year Ended December 31,
(In thousands)
2017
 
2016
 
2015
Current
 
 
 
 
 
Federal
$
(10,367
)
 
$

 
$

State
5,335

 
1,242

 
2,052

Total current taxes provision
(5,032
)
 
1,242

 
2,052

Deferred
 
 
 
 
 
Federal
6,343

 
(190,207
)
 
(9,493
)
State
1,695

 
(8,521
)
 
807

Total deferred taxes benefit
8,038

 
(198,728
)
 
(8,686
)
Provision (benefit) for income taxes from continuing operations
$
3,006

 
$
(197,486
)
 
$
(6,634
)
 
 
 
 
 
 
Provision (benefit) for income taxes included on the consolidated statement of operations
 
 
 
 
 
Provision (benefit) for income taxes from continuing operations
$
3,006

 
$
(197,486
)
 
$
(6,634
)
Provision (benefit) for income taxes from discontinued operations
14,855

 
146,379

 
(540
)
Provision (benefit) for income taxes from continuing and discontinued operations
$
17,861

 
$
(51,107
)
 
$
(7,174
)
Schedule of Effective Income Tax Rate Reconciliation
The following table provides a reconciliation between the federal statutory rate and the effective income tax rate, expressed as a percentage of income from continuing operations before income taxes:
 
Year Ended December 31,
 
2017
 
2016
 
2015
Tax at federal statutory rate
35.0
 %
 
35.0
 %
 
35.0
 %
Federal statutory rate change on deferred tax liability
(35.2
)%
 
 %
 
 %
State income taxes, net of federal benefit
2.7
 %
 
(59.2
)%
 
69.2
 %
Compensation-based credits
(1.0
)%
 
(21.7
)%
 
(60.8
)%
Valuation allowance for deferred tax assets
 %
 
(2,448.1
)%
 
200.9
 %
Company provided benefits
0.5
 %
 
14.8
 %
 
152.9
 %
Nondeductible expenses
0.5
 %
 
10.3
 %
 
19.0
 %
Tax exempt interest
(0.3
)%
 
(6.9
)%
 
(13.8
)%
Accrued interest on uncertain tax benefits
0.1
 %
 
2.1
 %
 
(139.7
)%
Uncertain tax benefits
 %
 
 %
 
(421.6
)%
Other, net
(0.5
)%
 
1.5
 %
 
(4.5
)%
Effective tax rate
1.8
 %
 
(2,472.2
)%
 
(163.4
)%
Reconciliation of Unrecognized Tax Benefits
A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows:
 
Year Ended December 31,
(In thousands)
2017
 
2016
 
2015
Unrecognized tax benefit, beginning of year
$
2,482

 
$
2,482

 
$
30,198

Additions:
 
 
 
 
 
Tax positions related to current year

 

 

Reductions:
 
 
 
 
 
Tax position related to prior years

 

 
(27,716
)
Unrecognized tax benefits, end of year
$
2,482

 
$
2,482

 
$
2,482