Income Taxes (Tables)

12 Months Ended

Dec. 31, 2022

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense

Income tax expense (benefit) includes the following components:

	Federal			State			Foreign		Total
2022
Current	$	149,840		$	63,140		$	295,546	$	508,526
Deferred		(27,904	)		(5,336	)		—		(33,240	)
	$	121,936		$	57,804		$	295,546	$	475,286
2021
Current	$	126,840		$	54,484		$	328,137	$	509,461
Deferred		(3,981	)		291			—		(3,690	)
	$	122,859		$	54,775		$	328,137	$	505,771
2020
Current	$	37,551		$	18,432		$	193,996	$	249,979
Deferred		8,440			(69	)		—		8,371
	$	45,991		$	18,363		$	193,996	$	258,350

Schedule of U.S. and Foreign Components of Income Before Income Tax Expense/(Benefit)

The components of earnings before income taxes are as follows:

	2022		2021		2020
United States	$	987,186	$	823,009	$	325,009
Foreign		848,705		1,101,607		631,555
	$	1,835,891	$	1,924,616	$	956,564

Schedule of Effective Income Tax Rate Reconciliation

Income tax expense differs from amounts computed by applying the United States Federal income tax rate of 21% when compared to earnings before income taxes as a result of the following:

	2022		2021			2020
Computed “expected” tax expense	$	385,537	$	404,169		$	200,879
Increase (decrease) in income taxes resulting from:
Effect of foreign taxes		32,293		46,644			48,584
State income taxes, net of Federal income tax benefit		45,665		43,272			14,507
Nondeductible executive compensation		8,019		8,981			4,324
Stock compensation expense, net		454		(6,238	)		(8,461	)
Other, net		3,318		8,943			(1,483	)
	$	475,286	$	505,771		$	258,350

Schedule of Deferred Tax Assets and Liabilities

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,	2022		2021
Deferred Tax Assets:
Deductible stock compensation expense, net	$	9,707	$	11,291
Operating lease liabilities		72,506		67,065
Capitalized R&D expenses		23,246		—
Accrued third party obligations, deductible for taxes upon economic performance		9,601		6,504
Excess of financial statement over tax depreciation		10,280		9,182
Foreign currency translation adjustments		12,184		8,729
Retained liability for cargo claims		1,592		1,430
Provision for credit losses on accounts receivable		3,550		2,168
Total gross deferred tax assets		142,666		106,369
Deferred Tax Liabilities:
Unremitted foreign earnings, net of related foreign tax credits		36,542		41,560
Operating lease assets		68,675		64,080
Total gross deferred tax liabilities		105,217		105,640
Net deferred tax assets	$	37,449	$	729