Income Taxes (Tables)

12 Months Ended

Dec. 31, 2013

Schedule of Deferred Tax Assets and Liabilities

The significant components of the deferred income tax assets and liabilities as of December 31, 2013 and 2012 are as follows (in thousands):



	December 31
	2013			2012
Deferred tax assets:
Net operating loss carryforward and federal credits	$	36,624		$	34,401
Capital and operating leases	2,841			1,742
Post-retirement employee benefits	6,470			62,823
Employee benefits other than post-retirement	16,667			18,010
Inventory reserve	3,050			3,181
Deferred revenue	8,903			10,770
Other	1,262			458
Deferred tax assets	75,817			131,385
Deferred tax liabilities:
Accelerated depreciation	(155,769		)	(147,282		)
Partnership items	(9,466		)	(9,418		)
State taxes	(6,265		)	(1,724		)
Valuation allowance against deferred tax assets	(229		)	(229		)
Deferred tax liabilities	(171,729		)	(158,653		)
Net deferred tax (liability)	$	(95,912	)	$	(27,268	)

Schedule of Components of Income Tax Expense (Benefit)

The following summarizes the Company’s income tax provisions (benefits) (in thousands):



	Years Ended December 31
	2013			2012			2011
Current taxes:
Federal	$	67		$	—		$	(950	)
Foreign	—			337			—
State	425			145			426
Deferred taxes:
Federal	17,902			23,454			15,968
Foreign	—			—			—
State	872			736			1,551
Total deferred tax expense	18,774			24,190			17,519
Total income tax expense from continuing operations	$	19,266		$	24,672		$	16,995
Income tax expense (benefit) from discontinued operations	$	(2	)	$	(441	)	$	(393	)

Schedule of Effective Income Tax Rate Reconciliation

The reconciliation of income tax from continuing operations computed at the U.S. statutory federal income tax rates to effective income tax rates is as follows:



	Years Ended December 31
	2013		2012		2011
Statutory federal tax rate	35.0	%	35.0	%	35.0	%
Foreign income taxes	—	%	0.3	%	—	%
State income taxes, net of federal tax benefit	(234.7	)%	0.9	%	3.1	%
Tax effect of non-deductible goodwill	(5,121.2	)%	—	%	2.4	%
Tax effect of other non-deductible expenses	(26.4	)%	1.1	%	1.7	%
Other	(19.3	)%	(0.1	)%	(0.6	)%
Effective income tax rate	(5,366.6	)%	37.2	%	41.6	%

Schedule of Effective Income Tax Rate Reconciliation, Discontinued Operations

The reconciliation of income tax from discontinued operations computed at the U.S. statutory federal income tax rates to effective income tax rates is as follows:



	Years Ended December 31
	2013		2012		2011
Statutory federal tax rate	(35.0	)%	(35.0	)%	(35.0	)%
State income taxes, net of federal tax benefit	(1.3	)%	(1.3	)%	(1.8	)%
Effective income tax rate	(36.3	)%	(36.3	)%	(36.8	)%