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PROPERTY AND EQUIPMENT (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2023 USD ($) item | Dec. 31, 2022 USD ($) item | Dec. 31, 2021 USD ($)
Property and equipment |  |  |
Property and Equipment | $ 3,487.2 | $ 3,288.7 |
Less: Accumulated Depreciation | (1,397.3) | (1,326.2) |
Property and equipment, net | $ 2,089.9 | 1,962.5 |
Number of vessels under agreements for construction | item | 3 |  |
Depreciation Expense | $ 124.4 | 123.5 | $ 117.1
Vessels |  |  |
Property and equipment |  |  |
Property and Equipment | 2,323.4 | 2,278.6 |
Less: Accumulated Depreciation | (886.8) | (838.8) |
Property and equipment, net | 1,436.6 | 1,439.8 |
Containers and equipment |  |  |
Property and equipment |  |  |
Property and Equipment | 845.0 | 762.7 |
Less: Accumulated Depreciation | (451.9) | (433.8) |
Property and equipment, net | 393.1 | 328.9 |
Terminal facilities and other property |  |  |
Property and equipment |  |  |
Property and Equipment | 148.0 | 131.5 |
Less: Accumulated Depreciation | (58.6) | (53.6) |
Property and equipment, net | 89.4 | 77.9 |
Vessel construction in progress |  |  |
Property and equipment |  |  |
Property and Equipment | 103.1 | 50.2 |
Property and equipment, net | $ 103.1 | $ 50.2 |
Number of vessels under agreements for construction | item | 3 | 3 |
Other construction in progress |  |  |
Property and equipment |  |  |
Property and Equipment | $ 67.7 | $ 65.7 |
Property and equipment, net | $ 67.7 | $ 65.7 |

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