Condensed Consolidated Statements of Earnings - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenues:
Revenue from Contract with Customer, Excluding Assessed Tax		$ 3,609,093	$ 2,411,078	$ 6,807,913	$ 4,254,845
Operating Expenses:
Direct Operating Costs	[1]	2,598,633	1,661,487	4,845,917	2,890,118
Salaries and related		481,186	395,107	933,291	737,147
Rent and occupancy		45,366	41,375	90,646	83,899
Depreciation and amortization		12,675	14,109	25,662	26,769
Selling and promotion		3,172	3,113	6,242	11,356
Other		57,416	48,261	109,995	98,875
Total operating expenses		3,198,448	2,163,452	6,011,753	3,848,164
Operating income		410,645	247,626	796,160	406,681
Other Income (Expense):
Interest income		2,188	2,559	4,134	7,366
Other, net		2,649	797	5,649	4,181
Other income, net		4,837	3,356	9,783	11,547
Earnings before income taxes		415,482	250,982	805,943	418,228
Income tax expense		98,508	66,794	201,019	111,258
Net earnings		316,974	184,188	604,924	306,970
Less net earnings attributable to the noncontrolling interest		602	319	1,332	757
Net earnings attributable to shareholders		$ 316,372	$ 183,869	$ 603,592	$ 306,213
Diluted earnings attributable to shareholders per share		$ 1.84	$ 1.09	$ 3.52	$ 1.80
Basic earnings attributable to shareholders per share		$ 1.87	$ 1.10	$ 3.57	$ 1.83
Weighted average diluted shares outstanding		171,677	169,290	171,660	170,382
Weighted average basic shares outstanding		169,210	166,767	169,140	167,751
Airfreight services
Revenues:
Revenue from Contract with Customer, Excluding Assessed Tax		$ 1,523,569	$ 1,269,654	$ 2,849,484	$ 1,925,252
Operating Expenses:
Direct Operating Costs		1,136,328	932,137	2,090,872	1,398,865
Ocean freight and ocean services
Revenues:
Revenue from Contract with Customer, Excluding Assessed Tax		1,098,550	489,385	2,052,462	980,725
Operating Expenses:
Direct Operating Costs		862,251	361,272	1,604,686	725,668
Customs brokerage and other services
Revenues:
Revenue from Contract with Customer, Excluding Assessed Tax		986,974	652,039	1,905,967	1,348,868
Operating Expenses:
Direct Operating Costs		$ 600,054	$ 368,078	$ 1,150,359	$ 765,585

[1] Directly related cost of transportation and other expenses totals operating expenses from airfreight services, ocean freight and ocean services and customs brokerage and other services as shown in the condensed consolidated statements of earnings.