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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Due from charterers, net [Abstract] |  |  |
Reserve against the due from charterers | $ 632 | $ 488 |
Accrual related to estimated customer claims | 536 | 407 |
Fixed assets, net [Abstract] |  |  |
Depreciation and amortization expense for fixed assets | 140,743 | 139,063 | 136,203
Deferred drydocking costs [Abstract] |  |  |
Amortization expense for drydocking | 5,700 | 5,064 | 5,617
Minimum [Member] |  |  |
Deferred drydocking costs [Abstract] |  |  |
Period for which vessels are required to be drydocked for major repairs and maintenance | 30 months |  |
Maximum [Member] |  |  |
Deferred drydocking costs [Abstract] |  |  |
Period for which vessels are required to be drydocked for major repairs and maintenance | 60 months |  |
Property, Plant and Equipment Excluding Vessels [Member] |  |  |
Fixed assets, net [Abstract] |  |  |
Depreciation and amortization expense for fixed assets | 1,481 | 888 | 507
Furniture and Fixtures [Member] |  |  |
Fixed assets, net [Abstract] |  |  |
Useful lives | 5 years |  |
Vessel Equipment [Member] |  |  |
Vessels [Line Items] |  |  |
Estimated useful life | 25 years |  |
Depreciation expense | $ 133,562 | $ 133,111 | $ 130,080
Estimated scrap value (in dollars per lightweight ton) | 245 |  |
Vessel Equipment [Member] | Minimum [Member] |  |  |
Fixed assets, net [Abstract] |  |  |
Useful lives | 2 years |  |
Vessel Equipment [Member] | Maximum [Member] |  |  |
Fixed assets, net [Abstract] |  |  |
Useful lives | 15 years |  |
Computer Equipment [Member] |  |  |
Fixed assets, net [Abstract] |  |  |
Useful lives | 3 years |  |

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- Definition A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 4 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5074-111524 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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