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GENERAL AND SIGNIFICANT ACCOUNTING POLICIES (Tables) | 3 Months Ended
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Mar. 31, 2025
Schedule of prepaid expenses and other assets | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, | ​ | December 31,
Prepaid Expenses and Other Assets (in millions) |  | 2025 |  | 2024
Vessel fuel | ​ | $ | 31.6 | ​ | $ | 31.2
Prepaid insurance and insurance related receivables | ​ |  | 17.5 | ​ |  | 19.1
Prepaid operating expenses | ​ | ​ | 8.8 | ​ | ​ | 8.8
Income tax receivables, net | ​ | ​ | 2.6 | ​ | ​ | 2.0
Other | ​ |  | 14.8 | ​ |  | 12.8
Total | ​ | $ | 75.3 | ​ | $ | 73.9
Ocean Transportation |
Schedule of principal revenue generating activities by segment | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended |
​ | ​ | March 31, |
Ocean Transportation (in millions) (1) | ​ | 2025 |  | 2024 |
Ocean Transportation services | ​ | $ | 632.9 | ​ | $ | 565.8 | ​
Terminal and other related services | ​ | ​ | 2.5 | ​ | ​ | 8.7 | ​
Fuel sales | ​ | ​ | 2.0 | ​ | ​ | 2.9 | ​
Vessel management and related services | ​ | ​ | — | ​ | ​ | 1.6 | ​
Total | ​ | $ | 637.4 | ​ | $ | 579.0 | ​
(1) | Ocean Transportation revenue transactions are primarily denominated in U.S. dollars except for less than 3 percent of Ocean Transportation services revenue and fuel sales revenue categories which are denominated in foreign currencies.
Logistics |
Schedule of principal revenue generating activities by segment | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended |
​ | ​ | March 31, |
Logistics (in millions) (1) | ​ | 2025 | ​ | 2024 | ​
Transportation Brokerage and Freight Forwarding services | ​ | $ | 127.3 | ​ | $ | 127.4 | ​
Warehousing services | ​ | ​ | 9.0 | ​ | ​ | 9.1 | ​
Supply Chain Management services | ​ |  | 8.3 | ​ |  | 6.6 | ​
Total | ​ | $ | 144.6 | ​ | $ | 143.1 | ​
(1) | Logistics revenue transactions are primarily denominated in U.S. dollars except for less than 3 percent of Transportation Brokerage and Freight Forwarding services revenue, and Supply Chain Management services revenue categories which are denominated in foreign currencies.

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