Income Taxes (Tables)

12 Months Ended

Dec. 31, 2012

The components of the provision for income taxes are as follows:



	Year Ended December 31,
(In thousands)	2012		2011		2010
Current:
Federal	$	74,074	$	27,470	$	34,255
State	11,890		9,796		6,896
	85,964		37,266		41,151
Deferred:
Federal	14,978		39,934		6,695
State	2,704		3,414		929
	17,682		43,348		7,624
Total provision for income taxes	$	103,646	$	80,614	$	48,775

The following is a reconciliation of the U.S. statutory federal income tax rates with our effective income tax rates for 2012, 2011 and 2010:



	Year Ended December 31,
(In thousands)	2012			2011			2010
Tax provision at statutory rate	$	95,584		$	77,029		$	43,549
State income taxes, net of federal benefit	10,211			7,480			5,002
Meals and entertainment disallowance	828			721			616
Tax credits	(2,609		)	(4,453		)	(744		)
Other, net	(368		)	(163		)	352
Total provision for income taxes	$	103,646		$	80,614		$	48,775

Deferred tax assets and liabilities consist of the following:



	December 31,
(In thousands)	2012			2011
Deferred tax assets:
Claims and insurance reserves	$	32,499		$	30,003
Allowance for doubtful accounts	2,829			2,827
Accrued vacation	12,399			9,339
Deferred compensation	17,734			14,441
Other	9,764			5,992
Total deferred tax assets	75,225			62,602
Valuation allowance	(559		)	—
Net deferred tax assets	74,666			62,602

Deferred tax liabilities:
Depreciation and amortization	(197,875		)	(169,309		)
Unrecognized revenue	(8,171		)	(6,995		)
Other	(1,752		)	(1,748		)
Total deferred tax liabilities	(207,798		)	(178,052		)
Net deferred tax liability	$	(133,132	)	$	(115,450	)

Our net deferred tax liability consists of the following:



	December 31,
(In thousands)	2012			2011
Current deferred tax asset	$	20,054		$	19,466
Noncurrent deferred tax liability	(153,186		)	(134,916		)
Net deferred tax liability	$	(133,132	)	$	(115,450	)