Commitments And Contingencies [Line Items]

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- Definition

Lessee Leasing Arrangements, Operating Leases, Number Of Renewal Options

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- Definition

Long-Term Purchase Commitment, Number Of Payment Installments

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- Definition

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

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- Definition

Number of Vessels Under Construction

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- Definition

Operating Leases, Annual Payments Due

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- Definition

Proceeds From Charter Agreement, Non-refundable

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- Definition

Term of charter agreement in years.

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- Definition

Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments.

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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

Term of the lessee's leasing arrangement renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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- Definition

Term of the lessee's leasing arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

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

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- Definition

Contractually required future rental payments receivable on noncancelable subleasing arrangements.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 50
-Paragraph 2
-Subparagraph (b)
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- Definition

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

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-Name Accounting Standards Codification
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- Definition

The total amount of sublease rental income recognized during the period that reduces the entity's rent expense incurred under operating leases.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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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.

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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

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-Name Accounting Standards Codification
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-Section 45
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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.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 360
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-Section 50
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Commitments and Contingencies and Other Matters - Narrative (Details) $ in Thousands	1 Months Ended							12 Months Ended
	Jan. 31, 2016 USD ($) renewal_option	Dec. 31, 2015 USD ($) payment_installment	Jul. 31, 2015 USD ($)	Apr. 30, 2015 USD ($)	Feb. 28, 2014 vessel	Sep. 30, 2013 USD ($)	Feb. 28, 2013	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Nov. 30, 2014 USD ($)
Commitments And Contingencies [Line Items]
Total investment		$ 2,544,857						$ 2,544,857	$ 2,241,444
Charter fee deposit		12,544						12,544	12,544		$ 12,500
Total rental expense								134,300	147,200	$ 102,100
Total rental income								1,400	$ 800	$ 400
Minimum rentals to be received in the future		1,600						1,600
Robotics [Member] \| Cost of Sales [Member]
Commitments And Contingencies [Line Items]
Contractual responsibility to reimburse third party for foreign withholding tax liability		$ 5,200						5,200
Scotland [Member] \| Subsequent Event [Member]
Commitments And Contingencies [Line Items]
Term of agreement	15 years
Number of renewal options \| renewal_option	2
Term of renewal option	5 years
Annual minimum lease payment	$ 900
Grand Canyon II and III [Member]
Commitments And Contingencies [Line Items]
Term of charter agreement							5 years
Grand Canyon II [Member] \| Capital Addition Purchase Commitments [Member]
Commitments And Contingencies [Line Items]
Non-refundable proceeds from charter agreement				$ 4,700
Q7000 [Member]
Commitments And Contingencies [Line Items]
Contract amount						$ 346,000
Percentage of contract price paid		80.00%				80.00%
Number of installments to be paid \| payment_installment		3
Total investment		$ 112,200						112,200
Q7000 [Member] \| Contract Signing [Member]
Commitments And Contingencies [Line Items]
Percentage of contract price paid						20.00%
Q7000 [Member] \| Due June 2016 [Member]
Commitments And Contingencies [Line Items]
Percentage of contract price paid		20.00%
Q7000 [Member] \| Issuance of Completion Certificate [Member]
Commitments And Contingencies [Line Items]
Percentage of contract price paid		20.00%
Q7000 [Member] \| Vessel Delivery [Member]
Commitments And Contingencies [Line Items]
Percentage of contract price paid		40.00%
Q7000 [Member] \| Capital Addition Purchase Commitments [Member] \| Extend Scheduled Delivery [Member]
Commitments And Contingencies [Line Items]
Total investment						$ 14,500
Q7000 [Member] \| Capital Addition Purchase Commitments [Member] \| Contract Signing [Member]
Commitments And Contingencies [Line Items]
Payment of shipyard incremental costs								69,200
Q7000 [Member] \| Capital Addition Purchase Commitments [Member] \| Contract Signing [Member] \| Extend Scheduled Delivery [Member]
Commitments And Contingencies [Line Items]
Payment of shipyard incremental costs			$ 7,300
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]
Total investment		$ 113,300						$ 113,300