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v3.19.1

Revenues | 12 Months Ended
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Dec. 31, 2018
Revenues [Abstract] |
Time Charter And Voyage Revenue | Revenues Revenues are comprised of the following:
|  | Year Ended December 31
|  | 2016 |  | 2017 |  | 2018
Time charter revenue |  | $ | 108,487 |  |  | $ | 146,533 |  |  | $ | 191,977 |
Voyage charter revenue |  | — |  |  | 1,095 |  |  | 1,113 |
Other income |  | 5,472 |  |  | 6,412 |  |  | 8,458 |
Total |  | 113,959 |  |  | 154,040 |  |  | 201,548 |

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- Definition This element represents the dislcosure of revenues, ballast bonus and other miscellaneous revenues generated from charterers, for the charter hire of vessels. + References No definition available. + Details
Name: | sb_TimeCharterAndVoyageRevenueTextBlock
Namespace Prefix: | sb_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_RevenuesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration