Long-Term Debt - Schedule of Deferred Financing Costs (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Gross Carrying Amount	$ 38,195	$ 36,458
Accumulated Amortization	(18,339)	(13,059)
Gross Carrying Amount	19,856	23,399
Term Loan Maturing June 2018 [Member]
Debt Instrument [Line Items]
Gross Carrying Amount	3,638	3,638
Accumulated Amortization	(1,819)	(1,091)
Gross Carrying Amount	1,819	2,547
Revolving Credit Facility Maturing June 2018 [Member]
Debt Instrument [Line Items]
Gross Carrying Amount	14,787	13,275
Accumulated Amortization	(6,924)	(3,982)
Gross Carrying Amount	7,863	9,293
Convertible Senior Notes 2032 [Member]
Debt Instrument [Line Items]
Gross Carrying Amount	3,759	3,759
Accumulated Amortization	(2,377)	(1,763)
Gross Carrying Amount	1,382	1,996
MARAD Debt 2027 [Member]
Debt Instrument [Line Items]
Gross Carrying Amount	12,200	12,200
Accumulated Amortization	(6,711)	(6,223)
Gross Carrying Amount	5,489	5,977
Nordea Q5000 Loan 2020 [Member]
Debt Instrument [Line Items]
Gross Carrying Amount	3,811	3,586
Accumulated Amortization	(508)	0
Gross Carrying Amount	$ 3,303	$ 3,586

Carrying amount of accumulated amortization of long-term deferred finance costs capitalized at the end of the reporting period.

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- Definition

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+ References

No definition available.

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Gross amount, as of the balance sheet date, of capitalized costs associated with the issuance of debt instruments (for example, legal, accounting, underwriting, printing, and registration costs) that will be charged against earnings in periods after one year or beyond the normal operating cycle, if longer, over the life of the long-term debt instruments to which such costs pertain.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28555-108399

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- Definition

Net amount of long-term deferred finance costs capitalized at the end of the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28555-108399

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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