XML 87 R34.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Income Taxes (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2014
Income Tax Disclosure [Abstract] |
Summary of income tax expense | Income tax expense is summarized as follows:
| Year Ended December 31,
(In thousands) | 2014 |  | 2013 |  | 2012
Current |  |  |  |  |  |  |  |
Federal | $ | 44,887 |  |  | $ | 56,544 |  |  | $ | 24,618 |
State | (4,387 | ) |  | 10,841 |  |  | 563 |
| 40,500 |  |  | 67,385 |  |  | 25,181 |
Deferred |  |  |  |  |  |  |  |
Federal | (32,375 | ) |  | 111,147 |  |  | 57,704 |
State | (80,192 | ) |  | 27,233 |  |  | 23,225 |
| (112,567 | ) |  | 138,380 |  |  | 80,929 |
Income tax (benefit) expense | $ | (72,067 | ) |  | $ | 205,765 |  |  | $ | 106,110 |
Schedule of reconciliation of actual provision for income taxes and provision for income taxes computed by applying the statutory federal income tax rate | Income tax expense was different than the amounts computed by applying the statutory federal income tax rate as follows:
| Year Ended December 31,
(In thousands) | 2014 |  | 2013 |  | 2012
Statutory federal income tax rate | 35 | % |  | 35 | % |  | 35 | %
Computed "expected" federal income tax | $ | 11,341 |  |  | $ | 169,938 |  |  | $ | 83,244 |
Deferred tax adjustment related to change in overall state tax rate | (86,956 | ) |  | 15,220 |  |  | 13,596 |
State income tax, net of federal income tax benefit | 903 |  |  | 17,513 |  |  | 9,609 |
Valuation allowance | 3,977 |  |  | — |  |  | 262 |
Uncertain tax positions | (1,974 | ) |  | 2,400 |  |  | — |
Other, net | 642 |  |  | 694 |  |  | (601 | )
Income tax expense | $ | (72,067 | ) |  | $ | 205,765 |  |  | $ | 106,110 |
Schedule of deferred tax liabilities and deferred tax assets | deferred tax liabilities and deferred tax assets were as follows:
| December 31,
(In thousands) | 2014 |  | 2013
Deferred Tax Assets |  |  |  |  |
Net operating loss carryforward | $ | 141,961 |  |  | $ | 78,182 |
Alternative minimum tax carryforward | 227,719 |  |  | 182,212 |
Foreign tax credit | 4,525 |  |  | 4,822 |
Derivative instruments | — |  |  | 3,946 |
Incentive compensation | 21,961 |  |  | 36,450 |
Deferred compensation | 9,531 |  |  | 11,988 |
Post-retirement benefits | 13,689 |  |  | 13,965 |
Other | 747 |  |  | 3,619 |
Total | 420,133 |  |  | 335,184 |
Deferred Tax Liabilities |  |  |  |  |
Properties and equipment | 1,248,532 |  |  | 1,321,241 |
Derivative instruments | 50,750 |  |  | — |
Total | 1,299,282 |  |  | 1,321,241 |
Net deferred tax liabilities | $ | 879,149 |  |  | $ | 986,057 |
Schedule of reconciliation of the beginning and ending amounts of unrecognized tax benefits | A reconciliation of unrecognized tax benefits is as follows:
| Year Ended December 31,
(In thousands) | 2014 |  | 2013 |  | 2012
Balance at beginning of year | $ | 3,700 |  |  | $ | — |  |  | $ | — |
Additions based on tax provisions related to the current year | — |  |  | 3,700 |  |  | — |
Additions for tax positions of prior years | — |  |  | — |  |  | — |
Reductions for tax positions of prior years | (3,037 | ) |  | — |  |  | — |
Settlements | — |  |  | — |  |  | — |
Balance at end of year | $ | 663 |  |  | $ | 3,700 |  |  | $ | — |

X
- Details
Name: | us-gaap_IncomeTaxDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 + Details
Name: | us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
Name: | us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 + Details
Name: | us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the change in unrecognized tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 55 -Paragraph 217 -URI http://asc.fasb.org/extlink&oid=32707879&loc=d3e36027-109320 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 + Details
Name: | us-gaap_ScheduleOfUnrecognizedTaxBenefitsRollForwardTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration