REVENUES (Freight & Delivery Revenues) (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2018 |
Sep. 30, 2018 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Dec. 31, 2017 |
Sep. 30, 2017 |
Jun. 30, 2017 |
Mar. 31, 2017 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
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Disaggregation of Revenue [Line Items] | ||||||||||||||||||
Total revenues | $ 1,088,047 | $ 1,240,197 | $ 1,200,151 | $ 854,474 | $ 977,490 | $ 1,094,715 | $ 1,030,763 | $ 787,328 | $ 4,382,869 | [1] | $ 3,890,296 | [1] | $ 3,592,667 | [1] | ||||
Freight & Delivery Revenues [Member] | ||||||||||||||||||
Disaggregation of Revenue [Line Items] | ||||||||||||||||||
Total revenues | [2] | (641,815) | (528,916) | (535,929) | ||||||||||||||
Total Revenues Excluding Freight & Delivery [Member] | ||||||||||||||||||
Disaggregation of Revenue [Line Items] | ||||||||||||||||||
Total revenues | $ 3,741,054 | $ 3,361,380 | $ 3,056,738 | |||||||||||||||
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