Business Segment Information - Financial Information Regarding Company's Operations by Geographic Area (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		$ 2,439,001	$ 2,239,752	$ 4,645,679	$ 4,832,341
Directly related cost of transportation and other expenses	[1]	1,639,408	1,419,182	3,072,688	3,138,284
Salaries and other operating expenses	[2]	575,674	572,073	1,134,296	1,169,591
Operating income		223,919	248,497	438,695	524,466
Identifiable assets at period end		4,788,341	4,564,040	4,788,341	4,564,040	$ 4,523,809
Capital expenditures		7,943	10,481	18,124	20,607
Equity		2,178,427	2,558,104	2,178,427	2,558,104	$ 2,391,413
Operating Segments | United States Segment
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		779,170	805,948	1,530,713	1,751,442
Directly related cost of transportation and other expenses	[1]	423,102	426,121	827,051	966,078
Salaries and other operating expenses	[2]	263,675	256,277	519,383	523,960
Operating income		92,393	123,550	184,279	261,404
Identifiable assets at period end		2,566,053	2,553,553	2,566,053	2,553,553
Capital expenditures		2,948	6,623	8,476	12,067
Equity		1,546,936	1,873,220	1,546,936	1,873,220
Operating Segments | Other North America Segment
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		110,723	110,255	217,573	220,105
Directly related cost of transportation and other expenses	[1]	65,374	69,108	132,084	138,313
Salaries and other operating expenses	[2]	34,339	34,793	67,423	70,617
Operating income		11,010	6,354	18,066	11,175
Identifiable assets at period end		173,764	192,362	173,764	192,362
Capital expenditures		575	161	1,974	630
Equity		32,700	45,252	32,700	45,252
Operating Segments | Latin America Segment
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		45,314	49,972	89,806	104,667
Directly related cost of transportation and other expenses	[1]	24,640	29,428	49,104	61,730
Salaries and other operating expenses	[2]	14,551	16,265	31,315	35,767
Operating income		6,123	4,279	9,387	7,170
Identifiable assets at period end		93,967	115,458	93,967	115,458
Capital expenditures		129	46	282	276
Equity		41,135	59,289	41,135	59,289
Operating Segments | North Asia Segment
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		637,351	510,027	1,182,292	1,092,448
Directly related cost of transportation and other expenses	[1]	512,146	387,973	938,620	840,315
Salaries and other operating expenses	[2]	70,762	68,290	138,022	139,430
Operating income		54,443	53,764	105,650	112,703
Identifiable assets at period end		626,892	495,229	626,892	495,229
Capital expenditures		355	352	637	942
Equity		163,913	220,638	163,913	220,638
Operating Segments | South Asia Segment
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		287,943	199,868	515,662	423,995
Directly related cost of transportation and other expenses	[1]	223,238	134,477	387,262	292,100
Salaries and other operating expenses	[2]	43,084	44,048	83,996	90,846
Operating income		21,621	21,343	44,404	41,049
Identifiable assets at period end		336,598	213,026	336,598	213,026
Capital expenditures		1,955	168	2,099	335
Equity		129,886	93,476	129,886	93,476
Operating Segments | Europe Segment
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		409,455	440,916	807,772	975,380
Directly related cost of transportation and other expenses	[1]	262,451	288,808	516,970	661,068
Salaries and other operating expenses	[2]	119,713	125,196	236,801	252,568
Operating income		27,291	26,912	54,001	61,744
Identifiable assets at period end		738,068	748,449	738,068	748,449
Capital expenditures		1,094	2,336	3,312	5,319
Equity		151,165	146,174	151,165	146,174
Operating Segments | Middle East Africa and India Segment
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		170,349	123,972	304,455	266,675
Directly related cost of transportation and other expenses	[1]	128,949	83,890	222,741	179,839
Salaries and other operating expenses	[2]	30,352	27,820	58,816	57,652
Operating income		11,048	12,262	22,898	29,184
Identifiable assets at period end		284,672	258,849	284,672	258,849
Capital expenditures		887	795	1,344	1,038
Equity		153,155	158,133	153,155	158,133
Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		(1,304)	(1,206)	(2,594)	(2,371)
Directly related cost of transportation and other expenses	[1]	(492)	(623)	(1,144)	(1,159)
Salaries and other operating expenses	[2]	(802)	(616)	(1,460)	(1,249)
Operating income		(10)	33	10	37
Identifiable assets at period end		(31,673)	(12,886)	(31,673)	(12,886)
Capital expenditures		0	0	0	0
Equity		$ (40,463)	$ (38,078)	$ (40,463)	$ (38,078)

[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.

[2] Salaries and other operating expenses totals salaries and related, rent and occupancy, depreciation and amortization, selling and promotion and other as shown in the condensed consolidated statements of earnings.