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BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Useful Life (Details) | 12 Months Ended
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Dec. 31, 2022
Minimum | Railcars |
Property, Plant and Equipment [Line Items] |
Estimated remaining useful life in years | 40 years
Minimum | Track and track related assets |
Property, Plant and Equipment [Line Items] |
Estimated remaining useful life in years | 15 years
Minimum | Bridges and tunnels |
Property, Plant and Equipment [Line Items] |
Estimated remaining useful life in years | 15 years
Minimum | Buildings and site improvements |
Property, Plant and Equipment [Line Items] |
Estimated remaining useful life in years | 20 years
Minimum | Railroad equipment |
Property, Plant and Equipment [Line Items] |
Estimated remaining useful life in years | 3 years
Minimum | Terminal machinery and equipment |
Property, Plant and Equipment [Line Items] |
Estimated remaining useful life in years | 15 years
Minimum | Vehicles |
Property, Plant and Equipment [Line Items] |
Estimated remaining useful life in years | 5 years
Minimum | Furniture and fixtures |
Property, Plant and Equipment [Line Items] |
Estimated remaining useful life in years | 3 years
Minimum | Computer hardware and software |
Property, Plant and Equipment [Line Items] |
Estimated remaining useful life in years | 3 years
Maximum | Railcars |
Property, Plant and Equipment [Line Items] |
Estimated remaining useful life in years | 50 years
Maximum | Track and track related assets |
Property, Plant and Equipment [Line Items] |
Estimated remaining useful life in years | 50 years
Maximum | Bridges and tunnels |
Property, Plant and Equipment [Line Items] |
Estimated remaining useful life in years | 55 years
Maximum | Buildings and site improvements |
Property, Plant and Equipment [Line Items] |
Estimated remaining useful life in years | 30 years
Maximum | Railroad equipment |
Property, Plant and Equipment [Line Items] |
Estimated remaining useful life in years | 15 years
Maximum | Terminal machinery and equipment |
Property, Plant and Equipment [Line Items] |
Estimated remaining useful life in years | 25 years
Maximum | Vehicles |
Property, Plant and Equipment [Line Items] |
Estimated remaining useful life in years | 7 years
Maximum | Furniture and fixtures |
Property, Plant and Equipment [Line Items] |
Estimated remaining useful life in years | 6 years
Maximum | Computer hardware and software |
Property, Plant and Equipment [Line Items] |
Estimated remaining useful life in years | 5 years

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
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- Details
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Data Type: | na
Balance Type: |
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- Details
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- Details
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Data Type: | na
Balance Type: |
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- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_VehiclesMember
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Data Type: | na
Balance Type: |
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- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_FurnitureAndFixturesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
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- Details
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- Details
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