Advances for vessels under construction and acquisition of vessels (Details) - Star Ayesha (ex-HN 1390) $ in Thousands	6 Months Ended
Jun. 30, 2019 USD ($)
Property, Plant and Equipment [Line Items]
Delivery date	July 15, 2019
Financed by CSSC
Property, Plant and Equipment [Line Items]
Remaining contracted price plus agreed additional amounts	$ 30,312
Description of Capital leases, Term of contract	Bareboat charter for ten years

A general description of the lessee's leasing arrangements including, but not limited to, the following: a) the basis on which contingent rental payments are determined; (b) the existence and terms of renewal or purchase options and escalation clauses; (c) restrictions imposed by lease agreements, such as those concerning dividends, additional debt, and further leasing.

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-Name Accounting Standards Codification
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-Publisher FASB
-Name Accounting Standards Codification
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