RESTRUCTURING - By Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
2022 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 17,476	$ 36,684
South America Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring charges	21,190
Personnel Expenses \| 2022 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1,814	2,662
Accrued Other Selling, General, and Administrative Expenses \| 2022 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1,304	15,150
Accrued Other Selling, General, and Administrative Expenses \| NAST \| 2022 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring charges	8	3,175
Accrued Other Selling, General, and Administrative Expenses \| Global Forwarding \| 2022 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring charges	197	3,174
Accrued Other Selling, General, and Administrative Expenses \| All Other and Corporate \| 2022 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1,099	8,801
Loss on disposal and exit activities including asset impairments \| South America Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring charges	18,328
Loss on disposal and exit activities including asset impairments \| NAST \| South America Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0
Loss on disposal and exit activities including asset impairments \| Global Forwarding \| South America Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring charges	17,961
Loss on disposal and exit activities including asset impairments \| All Other and Corporate \| South America Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring charges	367
Other Miscellaneous Expenses \| South America Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1,420
Other Miscellaneous Expenses \| NAST \| South America Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0
Other Miscellaneous Expenses \| Global Forwarding \| South America Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1,420
Other Miscellaneous Expenses \| All Other and Corporate \| South America Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0
Income tax benefit - South America \| South America Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring charges	(795)
Income tax benefit - South America \| NAST \| South America Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0
Income tax benefit - South America \| Global Forwarding \| South America Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring charges	(795)
Income tax benefit - South America \| All Other and Corporate \| South America Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0
Severance and Other Personnel Expenses \| Personnel Expenses \| 2022 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring charges	16,172	21,534
Severance and Other Personnel Expenses \| Personnel Expenses \| NAST \| 2022 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1,083	6,323
Severance and Other Personnel Expenses \| Personnel Expenses \| Global Forwarding \| 2022 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring charges	2,176	3,831
Severance and Other Personnel Expenses \| Personnel Expenses \| All Other and Corporate \| 2022 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring charges	12,913	11,380
Employee Severance \| Personnel Expenses \| 2022 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring charges	14,358	$ 18,872
Employee Severance \| Personnel Expenses \| South America Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring charges	2,237
Employee Severance \| Personnel Expenses \| NAST \| South America Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0
Employee Severance \| Personnel Expenses \| Global Forwarding \| South America Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1,641
Employee Severance \| Personnel Expenses \| All Other and Corporate \| South America Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 596