Income Taxes (Tables)

12 Months Ended

Dec. 31, 2012

Summary of Provisions for Income Taxes

Provisions for income taxes are as follows:

	2012			2011		2010
				(In Thousands)
Current:
Federal	$	28,654		$	33,006	$	13,723
State		4,695			4,514		3,754
Total Current	$	33,349		$	37,520	$	17,477
Deferred:
Federal	$	559		$	7,543	$	1,602
State		(314	)		1,145		708
Total Deferred	$	245		$	8,688	$	2,310
Provisions for income taxes	$	33,594		$	46,208	$	19,787

Schedule of Deferred Tax Assets and Liabilities

Deferred tax assets and liabilities include temporary differences and carryforwards as follows:

	December 31,
	2012			2011
	(In Thousands)
Deferred tax assets
Allowance for doubtful accounts	$	696		$	872
Asset impairment		764			756
Inventory		2,792			1,724
Deferred compensation		3,660			4,096
Other accrued liabilities		5,772			5,474
Hedging		700			1,033
Net operating loss carryforwards		310			392
Other		3,001			1,069
Total deferred tax assets		17,695			15,416
Less valuation allowance on deferred tax assets		(273	)		(344	)
Net deferred tax assets	$	17,422		$	15,072
Deferred tax liabilities
Property, plant and equipment	$	30,235		$	28,766
Prepaid and other insurance reserves		3,855			2,504
Investment in unconsolidated affiliate		433			640
Other		695			713
Total deferred tax liabilities	$	35,218		$	32,623
Net deferred tax liabilities	$	(17,796	)	$	(17,551	)
Consolidated balance sheet classification:
Net current deferred tax assets	$	3,224		$	4,275
Net noncurrent deferred tax liabilities		(21,020	)		(21,826	)
Net deferred tax liabilities	$	(17,796	)	$	(17,551	)
Net deferred tax liabilities by tax jurisdiction:
Federal	$	(16,324	)	$	(15,724	)
State		(1,472	)		(1,827	)
Net deferred tax liabilities	$	(17,796	)	$	(17,551	)

Income from Continuing Operations Before Provision for Income Taxes

Detailed below are the differences between the amount of the provision for income taxes and the amount which would result from the application of the federal statutory rate to “Income from continuing operations before provision for income taxes”.

	2012			2011			2010
				(In Thousands)
Provisions for income taxes at federal statutory rate	$	32,391		$	45,567		$	17,326
State current and deferred income taxes		3,533			5,088			3,259
Domestic production activities deduction		(1,933	)		(3,091	)		(1,371	)
Effect of tax return to tax provision reconciliation		(216	)		(958	)		(126	)
Other		(181	)		(398	)		699
Provisions for income taxes	$	33,594		$	46,208		$	19,787

Reconciliation of Beginning and Ending Amount of Uncertain Tax Positions

A reconciliation of the beginning and ending amount of uncertain tax positions is as follows:

	2012			2011			2010
	(In Thousands)
Balance at beginning of year	$	709		$	700		$	608
Additions based on tax positions related to the current year		131			217			131
Additions based on tax positions of prior years		1,937			—			—
Reductions for tax positions of prior years		(485	)		(51	)		(35	)
Settlements		—			(157	)		(4	)
Balance at end of year	$	2,292		$	709		$	700