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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2015

Income Tax Disclosure [Abstract]

Reconciliation of Effective Tax Rate to Federal Statutory Tax Rate

The following is a reconciliation of our effective tax rate to the federal statutory tax rate:

	Years Ended December 31,
	2015				2014				2013
U.S. federal statutory rate		35.0		%		35.0		%		35.0		%
State taxes, net of federal benefit		2.4			2.9				3.2
State incentives		(0.5	)		(0.8)					(0.6	)
State law changes		(0.9	)		(0.9)				0.1
Nondeductible expenses		0.4			0.9				0.8
Other		-			(0.1)				0.1
Net effective rate		36.4		%		37.0		%		38.6		%

Summary of Provision for Income Taxes

The following is a summary of our provision for income taxes (in thousands):

	Years Ended December 31,
	2015				2014				2013
Current
Federal	$	21,363			$	5,939			$	22,880
State and local		2,900				445				3,817
Foreign		284				249				205
		24,547				6,633				26,902
Deferred
Federal		16,538				23,600				15,920
State and local		(346	)			191				627
Foreign		(106	)			(115	)			(4	)
		16,086				23,676				16,543
Total provision	$	40,633			$	30,309			$	43,445

Summary of Deferred Tax Assets and Liabilities

The following is a summary of our deferred tax assets and liabilities (in thousands):

	December 31,
	2015				2014
Reserve for uncollectible accounts receivable	$	1,672			$	2,101
Accrued compensation		11,436				7,161
Other reserves		3,245				2,036
Current deferred tax assets		16,353				11,298
Accrued compensation		7,012				6,829
Other reserves		659				764
Operating loss carryforwards		1,914				1,387
Less valuation allowance		(108	)			(108	)
Non-current deferred tax assets		9,477				8,872
Total deferred tax assets	$	25,830			$	20,170
Prepaids	$	(3,448	)		$	(1,551	)
Other receivables		(4,493	)			(4,931	)
Current deferred tax liabilities		(7,941	)			(6,482	)
Property and equipment		(87,148	)			(67,726	)
Goodwill		(82,511	)			(81,647	)
Non-current deferred tax liabilities		(169,659	)			(149,373	)
Total deferred tax liabilities	$	(177,600	)		$	(155,855	)

Unrecognized Tax Benefits

A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows (in thousands):

Balance at January 1, 2014	$	459
Additions for tax positions taken in prior years		231
Additions for tax positions related to the current year		587
Reductions as a result of a lapse of the applicable statute of limitations		(212	)
Balance at December 31, 2014	$	1,065
Additions for tax positions taken in prior years		166
Additions for tax positions related to the current year		153
Reductions as a result of a lapse of the applicable statute of limitations		(245	)
Balance at December 31, 2015	$	1,139

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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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