Refers to the number of maritime (seagoing) vessels.

No definition available.

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- Definition

Number of vessels damaged in collision resulting in fuel oil discharge.

+ References

No definition available.

+ Details

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- Definition

Term of the guarantee or each group of financial instruments used to support performance by the company and its subsidiaries in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=82913245&loc=d3e12069-110248

+ Details

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- References

No definition available.

+ Details

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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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- Details

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- Details

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- Details

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- Details

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CONTINGENCIES (Details) $ in Thousands	3 Months Ended
CONTINGENCIES (Details) $ in Thousands	Mar. 31, 2018 USD ($)	Mar. 22, 2014 TankBarge Vessel
Guaranties [Abstract]
Issued guaranties	$ 20,348
Maximum [Member]
Guaranties [Abstract]
Guarantor obligations, expiration period	3 years
Performance Bonds [Member]
Guaranties [Abstract]
Issued guaranties	$ 10,906
Collision with M/S Summer Wind [Member]
Loss Contingencies [Line Items]
Number of vessels involved in collision \| Vessel		2
Number of vessels damaged in collision resulting in fuel oil discharge \| TankBarge		1
Letters of Credit [Member]
Guaranties [Abstract]
Issued guaranties	$ 9,442