Commitments and Contingencies - Lease commitments (Table) (Details) $ in Thousands	Jun. 30, 2017 USD ($)
Lease commitments
2018	$ 30,891
2019	(4,681)
2020	(4,646)
2021	(4,609)
2022	(4,570)
2023 and thereafter	(36,359)
Total	(23,974)
Future, minimum, non-cancellable charter revenue (1)
Lease commitments
2018	32,960
2019	0
2020	0
2021	0
2022	0
2023 and thereafter	0
Total	32,960
Future, minimum, non-cancellable lease payment under vessel operating leases (2)
Lease commitments
2018	(552)
2019	0
2020	0
2021	0
2022	0
2023 and thereafter	0
Total	(552)
Bareboat commitments charter hire (3)
Lease commitments
2018	(1,517)
2019	(4,681)
2020	(4,646)
2021	(4,609)
2022	(4,570)
2023 and thereafter	(36,359)
Total	$ (56,382)

Amount of minimum lease payments for capital leases.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84164817&loc=d3e45280-112737

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Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 55
-Paragraph 40
-Subparagraph (Note 3)
-URI http://asc.fasb.org/extlink&oid=82846649&loc=d3e38371-112697

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Future minimum rental payments in aggregate as of the balance sheet date under operating leases.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Future minimum lease payments receivable under operating leases for periods greater than five years following the balance sheet date.

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