Income Taxes (Tables)

12 Months Ended

Dec. 31, 2014

Income Tax Disclosure [Abstract]

Schedule of Provision for Income Taxes

For the years ended December 31, 2014, 2013 and 2012, the provision for income taxes is comprised of the following:

	2014			2013			2012
Current income tax (benefit) provision
Federal	$	(70	)	$	(113	)	$	(70	)
State		937			1,086			542
Foreign		5			13			31
Total current income tax provision		872			986			503
Deferred income tax provision (benefit):
Federal		30,414			28,628			36,030
State		(2,414	)		(3,900	)		907
Total deferred income tax provision		28,000			24,728			36,937
Total income tax provision	$	28,872		$	25,714		$	37,440

Components of Deferred Income Tax Assets and Liabilities

The components of deferred income tax assets and liabilities as of December 31, 2014 and 2013 are as follows:

	2014			2013
Deferred income tax assets:
Acquisition and debt related costs	$	20,319		$	8,640
Net operating loss		269,002			270,467
Self-insurance		9,666			8,686
Deferred revenue		1,021			2,134
Other		10,689			8,156
Total deferred income tax assets		310,697			298,083
Valuation allowance		(1,507	)		—
Net deferred tax assets		309,190			298,083
Deferred income tax liabilities:
Property and equipment		(278,851	)		(245,418	)
Goodwill		(35,396	)		(28,242	)
Amortization		(15,226	)		(12,613	)
Other		(4,209	)		(8,593	)
Total deferred income tax liabilities		(333,682	)		(294,866	)
Net deferred income tax (liabilities) assets	$	(24,492	)	$	3,217

Schedule of Reconciliation between U.S. Federal Statutory Income Tax Rate and Company's Effective Income Tax Provision (Benefit) Rate

The reconciliation between the U.S. federal statutory income tax rate and the Company’s effective income tax provision rate for the years ended December 31, 2014, 2013 and 2012, is as follows:

	2014			2013			2012
Income tax rate at federal statutory rates		35.00	%		35.00	%		35.00	%
State taxes, net of federal benefit		1.32			(0.77	)		1.24
State net operating loss revaluation		(3.78	)		—			—
Charitable contribution carryforward valuation allowance		1.91			—			—
Other		2.19			(1.11	)		(2.71	)
Income tax rate		36.64	%		33.12	%		33.53	%