INCOME TAXES

Income tax expense (benefit) includes the following components:



	Federal			State		Foreign	Total
2012
Current	$	86,606		12,704		106,475	205,785
Deferred	11,864			(225	)	—	11,639
	$	98,470		12,479		106,475	217,424
2011
Current	$	100,479		20,219		135,152	255,850
Deferred	(4,335		)	270		—	(4,065	)
	$	96,144		20,489		135,152	251,785
2010
Current	$	76,745		13,558		118,991	209,294
Deferred	10,197			372		—	10,569
	$	86,942		13,930		118,991	219,863

Income tax expense differs from amounts computed by applying the United States Federal income tax rate of 35% to earnings before income taxes as a result of the following:



	2012		2011	2010
Computed “expected” tax expense	$	192,638	223,310	197,424
Increase in income taxes resulting from:
State income taxes, net of Federal income tax benefit	8,111		13,318	9,054
Nondeductible stock compensation expense, net	12,061		12,877	10,254
Other, net	4,614		2,280	3,131
	$	217,424	251,785	219,863

The components of earnings before income taxes are as follows:



	2012		2011	2010
United States	$	179,483	212,308	196,382
Foreign	370,910		425,720	367,686
	$	550,393	638,028	564,068

The tax effects of temporary differences and tax credits that give rise to significant portions of deferred tax assets and deferred tax liabilities are as follows:



Years ended December 31,	2012			2011
Deferred Tax Assets:
Accrued third party charges, deductible for taxes upon economic performance	$	10,144		9,220
Provision for doubtful accounts receivable	1,111			1,074
Excess of financial statement over tax depreciation	8,122			8,138
Deductible stock compensation expense, net	9,382			4,651
Foreign currency translation adjustment	—			1,625
Partnership basis difference	1,426			1,043
Retained liability for cargo claims	983			192
Total gross deferred tax assets	31,168			25,943
Deferred Tax Liabilities:
Unremitted foreign earnings, net of related foreign tax credits	(94,787		)	(76,070	)
Foreign currency translation adjustment	(3,141		)	—
Other	(135		)	(71	)
Total gross deferred tax liabilities	$	(98,063	)	(76,141	)
Net deferred tax liabilities	$	(66,895	)	(50,198	)
Current deferred tax assets	$	(12,102	)	(10,415	)
Noncurrent deferred tax liabilities	$	(78,997	)	(60,613	)

Based on management’s review of the Company’s tax positions, the Company had no significant unrecognized tax benefits as of December 31, 2012 and 2011.

The Company or one of its subsidiaries files income tax returns in the U.S. federal jurisdiction and various state, local and foreign jurisdictions. The Company is no longer subject to U.S. federal income tax examinations by tax authorities for years prior to 2009 With respect to state and local jurisdictions and countries outside of the United States, with limited exceptions, the Company and its subsidiaries are no longer subject to income tax audits for years prior to 2001. In the normal course of business, the Company is subject to examination by taxing authorities throughout the world. Although the outcome of tax audits is always uncertain, the Company believes that adequate amounts of tax, interest and penalties have been provided for any adjustments that may result from these open tax years. Any interest and penalties expensed in relation to the underpayment of income taxes were insignificant for the years ended December 31, 2012, 2011 and 2010.