COMMITMENTS AND CONTINGENCIES (Details)	Dec. 31, 2014 railcar_unit_train
Loss Contingencies [Line Items]
Number of railcars	320
Corrosion
Loss Contingencies [Line Items]
Number of railcars	210

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.

No definition available.

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