REVENUE FROM CONTRACTS WITH CUSTOMERS (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Disaggregation of Revenue [Line Items]
Total revenues	$ 4,412,311	$ 4,611,670
NAST
Disaggregation of Revenue [Line Items]
Total revenues	3,000,313	3,304,187
Global Forwarding
Disaggregation of Revenue [Line Items]
Total revenues	858,637	789,978
All Other and Corporate
Disaggregation of Revenue [Line Items]
Total revenues	553,361	517,505
Transportation and logistics services
Disaggregation of Revenue [Line Items]
Total revenues	4,082,588	4,327,965
Transportation and logistics services | Performance obligations completed over time
Disaggregation of Revenue [Line Items]
Total revenues	4,082,588	4,327,965
Transportation and logistics services | NAST | Performance obligations completed over time
Disaggregation of Revenue [Line Items]
Total revenues	3,000,313	3,304,187
Transportation and logistics services | Global Forwarding | Performance obligations completed over time
Disaggregation of Revenue [Line Items]
Total revenues	858,637	789,978
Transportation and logistics services | All Other and Corporate | Performance obligations completed over time
Disaggregation of Revenue [Line Items]
Total revenues	223,638	233,800
Sourcing
Disaggregation of Revenue [Line Items]
Total revenues	329,723	283,705
Sourcing | Performance obligations completed at a point in time
Disaggregation of Revenue [Line Items]
Total revenues	329,723	283,705
Sourcing | NAST | Performance obligations completed at a point in time
Disaggregation of Revenue [Line Items]
Total revenues	0	0
Sourcing | Global Forwarding | Performance obligations completed at a point in time
Disaggregation of Revenue [Line Items]
Total revenues	0	0
Sourcing | All Other and Corporate | Performance obligations completed at a point in time
Disaggregation of Revenue [Line Items]
Total revenues	$ 329,723	$ 283,705