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v2.4.1.9

Leases (Narrative) (Details) | 12 Months Ended
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Dec. 31, 2014
Minimum [Member] | Tank Barges [Member] |
Operating Leased Assets [Line Items] |
Lease agreements expiring terms | 1 year
Minimum [Member] | Towing Vessels [Member] |
Operating Leased Assets [Line Items] |
Lease agreements expiring terms | 30 days
Maximum [Member] | Tank Barges [Member] |
Operating Leased Assets [Line Items] |
Lease agreements expiring terms | 12 years
Maximum [Member] | Towing Vessels [Member] |
Operating Leased Assets [Line Items] |
Lease agreements expiring terms | 5 years

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- Definition Lease agreements expiring terms + References No definition available. + Details
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- Details
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Balance Type: | na
Period Type: | duration

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

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