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Commitments and Contingencies - Legal (Details) (USD $) | 12 Months Ended | 1 Months Ended | 12 Months Ended |  | 0 Months Ended | 12 Months Ended |  | 0 Months Ended | 12 Months Ended |  | 1 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Feb. 20, 2012 Star Beta (chartered by Oldendorff Gmbh & Co KG and Deiulemar) | Dec. 31, 2011 Star Beta (chartered by Oldendorff Gmbh & Co KG and Deiulemar) | Dec. 31, 2010 Star Beta (chartered by Oldendorff Gmbh & Co KG and Deiulemar) | Sep. 29, 2010 Star Epsilon And Star Kappa (chartered by Ishar Overseas) | Dec. 31, 2013 Star Epsilon And Star Kappa (chartered by Ishar Overseas) | Dec. 31, 2012 Star Epsilon And Star Kappa (chartered by Ishar Overseas) | Dec. 31, 2011 Star Epsilon And Star Kappa (chartered by Ishar Overseas) | Dec. 31, 2013 Star Gamma And Star Cosmo (Chartered by Korea Line Corporation) | Dec. 31, 2011 Star Gamma And Star Cosmo (Chartered by Korea Line Corporation) | Feb. 14, 2011 Star Gamma And Star Cosmo (Chartered by Korea Line Corporation) | Jun. 28, 2013 Star Borealis | Dec. 31, 2013 Star Borealis | Dec. 31, 2013 Nine Newbuilding Vessels | Mar. 31, 2013 Star Polaris
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Trade accounts receivable | $ 3,203,000 | $ 5,969,000 |  |  |  | $ 1,732,000 |  |  |  |  |  |  | $ 6,839,000 |  |  |  |
Legal proceeds |  |  |  | 1,040,000 |  |  | 5,000,000 |  |  |  |  |  |  |  |  |  |
Bad debt expense | 0 | 0 | 3,139,000 |  | 692,000 |  |  |  |  | 1,949,000 |  | 498,000 |  |  | 654,000 |  |
Other operational gain | 3,787,000 | 3,507,000 | 9,260,000 |  | 9,000,000 |  |  | 2,500,000 | 2,514,000 |  | 177,000 |  |  |  |  |  |
Gross Daily Charter Rate |  |  |  |  |  |  |  |  |  |  |  |  |  | 24,750 |  |  |
Aggregate acquisition price |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 367,400,000 |
Revenue loss due to engine failure | $ 68,296,000 | $ 85,684,000 | $ 106,912,000 |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (2,343,000)
Off-hire days due to engine failure |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 142

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