Business Segment Information - Financial Information Regarding Company's Operations by Geographic Area (Detail) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
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| Segment Reporting Information [Line Items] | |||||||||
| Revenues | $ 3,502,335 | $ 2,651,885 | $ 6,285,297 | $ 5,318,304 | |||||
| Directly related cost of transportation and other expenses | [1] | 2,416,840 | 1,753,357 | 4,227,991 | 3,530,032 | ||||
| Salaries and related costs | 573,698 | 471,336 | 1,073,269 | 929,273 | |||||
| Other operating expenses | [2] | 162,179 | 179,456 | 339,591 | 345,405 | ||||
| Operating income | 349,618 | 247,736 | 644,446 | 513,594 | |||||
| Identifiable assets at period end | 5,134,910 | 4,786,481 | 5,134,910 | 4,786,481 | $ 4,893,638 | ||||
| Capital expenditures | 11,991 | 15,875 | 24,603 | 29,027 | |||||
| Depreciation and amortization | 12,695 | 13,847 | 26,570 | 28,451 | |||||
| Equity | 2,121,073 | 2,197,283 | 2,121,073 | 2,197,283 | $ 2,358,093 | ||||
| Operating Segments | United States Segment | |||||||||
| Segment Reporting Information [Line Items] | |||||||||
| Revenues | 1,164,252 | 877,325 | 2,118,829 | 1,731,774 | |||||
| Directly related cost of transportation and other expenses | [1] | 666,578 | 454,354 | 1,157,712 | 906,271 | ||||
| Salaries and related costs | 328,706 | 266,018 | 610,875 | 524,107 | |||||
| Other operating expenses | [2] | (504) | 31,859 | 36,023 | 54,407 | ||||
| Operating income | 169,472 | 125,094 | 314,219 | 246,989 | |||||
| Identifiable assets at period end | 2,499,046 | 2,554,090 | 2,499,046 | 2,554,090 | |||||
| Capital expenditures | 6,240 | 6,146 | 13,808 | 14,553 | |||||
| Depreciation and amortization | 7,133 | 7,896 | 14,386 | 16,834 | |||||
| Equity | 1,270,494 | 1,475,449 | 1,270,494 | 1,475,449 | |||||
| Operating Segments | Other North America Segment | |||||||||
| Segment Reporting Information [Line Items] | |||||||||
| Revenues | 141,860 | 108,128 | 271,494 | 224,613 | |||||
| Directly related cost of transportation and other expenses | [1] | 89,325 | 67,428 | 170,618 | 140,621 | ||||
| Salaries and related costs | 24,597 | 20,205 | 47,589 | 39,797 | |||||
| Other operating expenses | [2] | 16,705 | 16,726 | 31,439 | 31,554 | ||||
| Operating income | 11,233 | 3,769 | 21,848 | 12,641 | |||||
| Identifiable assets at period end | 199,633 | 186,248 | 199,633 | 186,248 | |||||
| Capital expenditures | 796 | 257 | 1,047 | 483 | |||||
| Depreciation and amortization | 515 | 499 | 1,015 | 996 | |||||
| Equity | 58,576 | 57,602 | 58,576 | 57,602 | |||||
| Operating Segments | Latin America Segment | |||||||||
| Segment Reporting Information [Line Items] | |||||||||
| Revenues | 68,181 | 66,904 | 127,176 | 129,293 | |||||
| Directly related cost of transportation and other expenses | [1] | 39,879 | 40,945 | 73,421 | 77,380 | ||||
| Salaries and related costs | 12,690 | 11,030 | 24,082 | 21,468 | |||||
| Other operating expenses | [2] | 10,276 | 9,745 | 18,829 | 19,659 | ||||
| Operating income | 5,336 | 5,184 | 10,844 | 10,786 | |||||
| Identifiable assets at period end | 136,582 | 105,069 | 136,582 | 105,069 | |||||
| Capital expenditures | 186 | 274 | 335 | 499 | |||||
| Depreciation and amortization | 248 | 253 | 494 | 504 | |||||
| Equity | 61,342 | 37,810 | 61,342 | 37,810 | |||||
| Operating Segments | North Asia Segment | |||||||||
| Segment Reporting Information [Line Items] | |||||||||
| Revenues | 817,046 | 636,785 | 1,419,962 | 1,331,793 | |||||
| Directly related cost of transportation and other expenses | [1] | 670,698 | 507,413 | 1,152,422 | 1,061,907 | ||||
| Salaries and related costs | 45,558 | 36,686 | 82,546 | 77,047 | |||||
| Other operating expenses | [2] | 40,834 | 36,820 | 75,959 | 74,566 | ||||
| Operating income | 59,956 | 55,866 | 109,035 | 118,273 | |||||
| Identifiable assets at period end | 580,755 | 523,858 | 580,755 | 523,858 | |||||
| Capital expenditures | 282 | 4,545 | 1,082 | 5,050 | |||||
| Depreciation and amortization | 1,184 | 1,176 | 2,526 | 2,232 | |||||
| Equity | 175,652 | 192,012 | 175,652 | 192,012 | |||||
| Operating Segments | South Asia Segment | |||||||||
| Segment Reporting Information [Line Items] | |||||||||
| Revenues | 568,779 | 359,531 | 991,955 | 724,108 | |||||
| Directly related cost of transportation and other expenses | [1] | 449,872 | 277,355 | 774,117 | 558,850 | ||||
| Salaries and related costs | 37,556 | 28,567 | 69,233 | 56,639 | |||||
| Other operating expenses | [2] | 32,091 | 28,117 | 59,697 | 51,402 | ||||
| Operating income | 49,260 | 25,492 | 88,908 | 57,217 | |||||
| Identifiable assets at period end | 518,374 | 354,318 | 518,374 | 354,318 | |||||
| Capital expenditures | 775 | 1,189 | 1,813 | 2,063 | |||||
| Depreciation and amortization | 737 | 622 | 1,565 | 1,192 | |||||
| Equity | 205,374 | 119,338 | 205,374 | 119,338 | |||||
| Operating Segments | Europe Segment | |||||||||
| Segment Reporting Information [Line Items] | |||||||||
| Revenues | 519,885 | 449,712 | 968,759 | 872,507 | |||||
| Directly related cost of transportation and other expenses | [1] | 336,532 | 293,878 | 618,601 | 565,594 | ||||
| Salaries and related costs | 99,696 | 88,913 | 193,350 | 170,462 | |||||
| Other operating expenses | [2] | 49,880 | 41,878 | 92,649 | 85,237 | ||||
| Operating income | 33,777 | 25,043 | 64,159 | 51,214 | |||||
| Identifiable assets at period end | 858,781 | 789,514 | 858,781 | 789,514 | |||||
| Capital expenditures | 2,563 | 1,928 | 4,662 | 3,084 | |||||
| Depreciation and amortization | 2,095 | 2,791 | 5,010 | 5,437 | |||||
| Equity | 320,189 | 191,551 | 320,189 | 191,551 | |||||
| Operating Segments | Middle East Africa and India Segment | |||||||||
| Segment Reporting Information [Line Items] | |||||||||
| Revenues | 225,216 | 155,458 | 392,374 | 308,330 | |||||
| Directly related cost of transportation and other expenses | [1] | 166,068 | 113,243 | 284,840 | 222,091 | ||||
| Salaries and related costs | 24,895 | 19,917 | 45,594 | 39,753 | |||||
| Other operating expenses | [2] | 13,670 | 15,015 | 26,493 | 30,043 | ||||
| Operating income | 20,583 | 7,283 | 35,447 | 16,443 | |||||
| Identifiable assets at period end | 350,672 | 286,466 | 350,672 | 286,466 | |||||
| Capital expenditures | 1,149 | 1,536 | 1,856 | 3,295 | |||||
| Depreciation and amortization | 783 | 610 | 1,574 | 1,256 | |||||
| Equity | 190,235 | 162,159 | 190,235 | 162,159 | |||||
| Intersegment Eliminations | |||||||||
| Segment Reporting Information [Line Items] | |||||||||
| Revenues | (2,884) | (1,958) | (5,252) | (4,114) | |||||
| Directly related cost of transportation and other expenses | [1] | (2,112) | (1,259) | (3,740) | (2,682) | ||||
| Other operating expenses | [2] | (773) | (704) | (1,498) | (1,463) | ||||
| Operating income | 1 | 5 | (14) | 31 | |||||
| Identifiable assets at period end | (8,933) | (13,082) | (8,933) | (13,082) | |||||
| Equity | $ (160,789) | $ (38,638) | $ (160,789) | $ (38,638) | |||||
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