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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2014

Income Tax Disclosure [Abstract]

Income Tax Rate Reconciliation [Table Text Block]

(dollars in thousands):

		Year Ended December 31
		2014				2013
Income before income taxes		$	123,305			$	78,148
Statutory U.S. income tax rate		35.0		%		35.0		%
Statutory tax provision		$	43,157			$	27,352
State taxes		4,097				2,545
Domestic production activities deduction		(2,031		)		(1,326		)
Other		(1,927		)		1,307
Total		$	43,296			$	29,878
Effective income tax rate excluding discrete item		35.1		%		38.2		%
Recognition of beginning deferred tax balances		$	—			$	(68,666	)
Income tax provision (benefit) with discrete item		$	43,296			$	(38,788	)
Effective income tax rate with discrete item		35.1		%		(49.6		)%

Income Tax Provision (Benefit) [Table Text Block]

The income tax provision (benefit) shown in the Consolidated Statements of Operations includes the following (dollars in thousands):

		Year Ended December 31
		2014				2013
Current income tax provision (benefit)
Federal		$	27,568			$	17,618
State		5,023				3,172
Foreign		—				22
Total current		32,591				20,812
Deferred income tax provision (benefit)
Federal		9,740				(54,611		)
State		965				(4,989		)
Foreign		—				—
Total deferred		10,705				(59,600		)
Income tax provision (benefit)		$	43,296			$	(38,788	)

Net Deferred Tax Assets and Liabilities [Table Text Block]

The components of our net deferred tax assets and liabilities at December 31, 2014 and 2013, are as follows (dollars in thousands):

		December 31, 2014				December 31, 2013
Deferred tax assets
Employee benefits (a)		$	81,414			$	55,331
Deferred financing costs		455				540
Intangible assets and other		227				386
Inventories		6,733				4,657
Canadian net operating loss carryforward (b)		15,839				17,180
Other		3,587				3,803
Gross deferred tax assets		108,255				81,897
Valuation allowance (b)		(15,839		)		(17,180		)
Net deferred tax assets		$	92,416			$	64,717
Deferred tax liabilities
Property and equipment		$	50,199			$	40,976
Intangible assets and other		4,531				3,968
Other		691				862
Deferred tax liabilities		$	55,421			$	45,806
As reported on our Consolidated Balance Sheets
Current deferred tax assets, net		$	20,311			$	18,151
Noncurrent deferred tax assets, net		16,684				760
Total deferred tax assets, net		$	36,995			$	18,911

___________________________________ 

(a) As of December 31, 2014, the increase relates to the tax effect of changes in recorded pension liabilities. See Note 7, Retirement and Benefit Plans, for more information.

(b) We have an investment in foreign subsidiaries, which at December 31, 2014 and 2013, had $15.8 million and $17.2 million, respectively, of deferred tax assets. The deferred tax assets resulted primarily from net operating losses and were fully offset by a valuation allowance. The net operating losses will expire beginning in 2015 and the proceeding 20 years.

Pretax income (loss) from domestic and foreign sources is as follows (dollars in thousands):

		Year Ended December 31
		2014				2013
Domestic		$	122,727			$	82,529
Foreign		578				(4,381		)
Income before income taxes		$	123,305			$	78,148

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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

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

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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

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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

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-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

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-Paragraph 12

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