GOODWILL AND OTHER INTANGIBLE ASSETS - Amortization Over Remaining Life (Details) $ in Thousands	Jun. 30, 2024 USD ($)
Estimated amortization expense
Remainder of 2024	$ 5,977
2025	11,212
2026	8,965
2027	1,803
2028	206
Finite-lived intangible assets, net	28,163
NAST
Estimated amortization expense
Remainder of 2024	3,966
2025	7,857
2026	7,857
2027	1,310
2028	0
Global Forwarding
Estimated amortization expense
Remainder of 2024	1,473
2025	2,279
2026	372
2027	0
2028	0
All Other and Corporate
Estimated amortization expense
Remainder of 2024	538
2025	1,076
2026	736
2027	493
2028	$ 206

Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 350
-SubTopic 30
-Name Accounting Standards Codification
-Section 55
-Paragraph 40
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482640/350-30-55-40

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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-URI https://asc.fasb.org/1943274/2147482665/350-30-50-2

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-SubTopic 20
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-Section 50
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481283/985-20-50-2

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Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in remainder of current fiscal year.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 985
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-URI https://asc.fasb.org/1943274/2147481283/985-20-50-2

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Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
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