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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2013

Income Taxes

Schedule of income tax provision from continuing operations

(in thousands)		2013			2012			2011
Current
Federal		$	16,812		$	14,856		$	10,047
State			2,920			2,885			2,038
​	​	​	​	​	​	​	​	​	​	​
			19,732			17,741			12,085
​	​	​	​	​	​	​	​	​	​	​
Deferred
Federal			218			2,396			(1,039	)
State			163			291			(287	)
​	​	​	​	​	​	​	​	​	​	​
			381			2,687			(1,326	)
​	​	​	​	​	​	​	​	​	​	​
Income tax expense		$	20,113		$	20,428		$	10,759
​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​	​	​	​

Schedule of differences between the U.S. federal statutory tax rate and the Company's effective tax rate for continuing operations

		2013			2012			2011
U.S federal statutory rate			35.0	%		35.0	%		35.0	%
State income taxes, net of U.S. federal income tax expense			3.5			3.8			4.5
Provision to return adjustments, net			(0.3	)		(0.2	)		(0.3	)
Deferred tax adjustments, net			—			—			(0.1	)
Domestic production/manufacturing deduction			(2.0	)		(2.0	)		(2.7	)
Non-deductible meals and entertainment			0.4			0.4			0.7
Research and development credit			—			(0.1	)		(0.1	)
Other, net			0.1			0.5			—
​	​	​	​	​	​	​	​	​	​	​
			36.7	%		37.4	%		37.0	%
​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​	​	​	​

Schedule of net deferred tax assets and (liabilities)

(in thousands)		2013			2012
Deferred income tax assets:
Self insurance reserves		$	8,643		$	9,439
Contract loss reserves			435			49
Stock-based awards			4,245			5,099
Bonus			2,884			1,931
Other			2,588			1,322
​	​	​	​	​	​	​	​
Total deferred income tax assets			18,795			17,840
​	​	​	​	​	​	​	​
Deferred income tax liabilities:
Property and equipment—tax over book depreciation			(24,037	)		(22,572	)
Intangible assets—tax over book amortization			(3,927	)		(4,056	)
​	​	​	​	​	​	​	​
Total deferred income tax liabilities			(27,964	)		(26,628	)
​	​	​	​	​	​	​	​
Net deferred income taxes		$	(9,169	)	$	(8,788	)
​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​

Schedule of balance sheet classification of deferred income taxes

(in thousands)		2013			2012
Current deferred income tax assets		$	14,550		$	12,742
Non-current deferred income tax liabilities			(23,719	)		(21,530	)
​	​	​	​	​	​	​	​
		$	(9,169	)	$	(8,788	)
​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​

Schedule of reconciliation of the beginning and ending liabilities for unrecognized tax benefits

(in thousands)		2013			2012
Balance at beginning of period		$	655		$	567
Gross increases in current period tax positions			132			186
Gross increases in prior period tax positions			55			134
Gross decreases in prior period tax positions			(185	)		(232	)
​	​	​	​	​	​	​	​
Balance at end of period			657			655
Accrued interest and penalties at end of period			189			185
​	​	​	​	​	​	​	​
Total liability for unrecognized tax benefits		$	846		$	840
​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​

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Tabular disclosure of the balance sheet classification of deferred income taxes.

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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.

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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.

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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.

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Tabular disclosure of the change in unrecognized tax benefits.

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