Commitments And Contingencies [Line Items]

No definition available.

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- Definition

The percentage due of the amount the entity agreed to spend under the long-term purchase commitment.

+ References

No definition available.

+ Details

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- Definition

Number of Vessels Under Construction

+ References

No definition available.

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- Definition

Proceeds From Charter Agreement, Non-refundable

+ References

No definition available.

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- Definition

Term of charter agreement in years.

+ References

No definition available.

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- Definition

Carrying value of amounts transferred to third parties for security purposes that are expected to be returned or applied towards payment after one year or beyond the operating cycle, if longer.

+ 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

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- Definition

The minimum amount the entity agreed to spend under the long-term purchase commitment.

+ References

No definition available.

+ Details

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- Definition

The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 13

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3213-108585

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- Definition

Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.13)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Details

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Commitments And Contingencies And Other Matters (Narrative) (Details) $ in Thousands	1 Months Ended						9 Months Ended
	Jul. 31, 2015 USD ($)	Jun. 30, 2015 USD ($)	Apr. 30, 2015 USD ($)	Feb. 28, 2014 vessel	Sep. 30, 2013 USD ($)	Feb. 28, 2013	Sep. 30, 2015 USD ($)	Dec. 31, 2014 USD ($)	Nov. 30, 2014 USD ($)
Commitments And Contingencies [Line Items]
Property and equipment							$ 2,515,691	$ 2,241,444
Charter fee deposit							12,544	$ 12,544	$ 12,500
Q7000 [Member]
Commitments And Contingencies [Line Items]
Long-term purchase commitment					$ 346,000
Property and equipment							108,900
Long-term purchase commitment percentage					80.00%
Grand Canyon II and III [Member]
Commitments And Contingencies [Line Items]
Term of charter agreement						5 years
Monohull Vessels [Member]
Commitments And Contingencies [Line Items]
Term of charter agreement				4 years
Number of vessels under construction \| vessel				2
Topside Equipment [Member]
Commitments And Contingencies [Line Items]
Property and equipment							99,900
Grand Canyon II [Member] \| Shipyard [Member]
Commitments And Contingencies [Line Items]
Non-refundable proceeds from charter agreement			$ 4,700
Contract Signing [Member] \| Q7000 [Member]
Commitments And Contingencies [Line Items]
Long-term purchase commitment percentage					20.00%
Contract Signing [Member] \| Q7000 [Member] \| Shipyard [Member]
Commitments And Contingencies [Line Items]
Payments to acquire property, plant, and equipment							$ 69,200
Due June 2016 [Member] \| Q7000 [Member]
Commitments And Contingencies [Line Items]
Long-term purchase commitment percentage		20.00%
Vessel Delivery [Member] \| Q7000 [Member]
Commitments And Contingencies [Line Items]
Long-term purchase commitment percentage		60.00%
Extend Scheduled Delivery [Member] \| Q7000 [Member] \| Shipyard [Member]
Commitments And Contingencies [Line Items]
Property and equipment		$ 14,500
Extend Scheduled Delivery [Member] \| Contract Signing [Member] \| Q7000 [Member] \| Shipyard [Member]
Commitments And Contingencies [Line Items]
Payments to acquire property, plant, and equipment	$ 7,300