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GOODWILL AND OTHER INTANGIBLE ASSETS - Change in the Carrying Amount of Goodwill (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2018 USD ($)
Goodwill [Roll Forward]
Balance, beginning of period	$ 1,275,816
Acquisitions	301
Adjustments	(308)
Translation	(10,583)
Balance, end of period	1,265,226
NAST
Goodwill [Roll Forward]
Balance, beginning of period	921,486
Acquisitions	0
Adjustments	(40)
Translation	(7,312)
Balance, end of period	914,134
Global Forwarding
Goodwill [Roll Forward]
Balance, beginning of period	185,873
Acquisitions	301
Adjustments	(268)
Translation	(1,948)
Balance, end of period	183,958
Robinson Fresh
Goodwill [Roll Forward]
Balance, beginning of period	141,185
Acquisitions	0
Adjustments	0
Translation	(1,109)
Balance, end of period	140,076
All Other and Corporate
Goodwill [Roll Forward]
Balance, beginning of period	27,272
Acquisitions	0
Adjustments	0
Translation	(214)
Balance, end of period	$ 27,058

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
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- Definition

Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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