Income Taxes (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Components of Income Tax Expense (Benefit)

The provision for income taxes from continuing operations for the periods indicated consists of the following (in millions):

	Year Ended December 31,
	2012			2011			2010
Current:
Federal	$	48.7		$	21.9		$	2.7
Foreign	0.3			0.1			—
State and local	12.4			1.3			3.3
	$	61.4		$	23.3		$	6.0
Deferred:
Federal	$	15.2		$	35.0		$	40.8
Foreign	1.1			(1.7		)	—
State and local, net of valuation provisions	(1.6		)	5.2			1.1
	$	14.7		$	38.5		$	41.9
Provision for income taxes	$	76.1		$	61.8		$	47.9

Schedule of Deferred Tax Assets and Liabilities

The tax effects of significant items comprising the Company’s net deferred tax liability as of the dates indicated are as follows (in millions):

	2012			2011
Deferred tax assets:
Accrued self insurance	$	22.4		$	16.3
Operating loss carryforward	10.6			11.5
Compensation and benefits	8.3			12.3
Property and equipment	7.8			7.2
Bad debts	3.9			2.5
Other	9.9			9.0
Valuation allowance	(2.0		)	(2.8		)
Total deferred tax assets	$	60.9		$	56.0
Deferred tax liabilities:
Property and equipment	$	70.4		$	61.5
Goodwill	32.8			34.6
Other intangible assets	26.7			34.3
Gain on remeasurement of equity investee	11.1			11.1
Accounts receivable retainage	16.5			11.6
Other	19.5			14.9
Total deferred tax liabilities	$	177.0		$	168.0
Net deferred tax liabilities	$	(116.1	)	$	(112.0	)

Schedule of Effective Income Tax Rate Reconciliation

A reconciliation of the U.S. statutory federal income tax rate related to pretax income from continuing operations to the effective tax rate for the years ended December 31 is as follows:

	2012		2011		2010
U.S. statutory federal rate applied to pretax income	35.0	%	35.0	%	35.0	%
State and local income taxes, net of federal benefit	3.4		3.5		3.2
Foreign tax rate differential	(0.4	)	0.1		0.1
Non-deductible expenses	2.1		1.7		3.8
Change in state tax rate	0.2		0.2		(1.0	)
Domestic production activities deduction	(1.6	)	(0.9	)	(0.1	)
Other	1.2		0.0		1.1
Change in valuation allowance for deferred tax assets	(0.4	)	(0.8	)	(0.1	)
Effective income tax rate	39.5	%	38.8	%	42.0	%

Liability [Member]

Schedule of Deferred Tax Assets and Liabilities

Total net current and noncurrent deferred tax balances included in the Company’s consolidated balance sheets as of the dates indicated are as follows (in millions):

	2012			2011
Net current deferred tax assets	$	3.3		$	10.6
Net noncurrent deferred tax liabilities	(119.4		)	(122.6		)
Net deferred tax liabilities	$	(116.1	)	$	(112.0	)