Number Of Operating Leases

No definition available.

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- Definition

Operating Lease Term

+ References

No definition available.

+ Details

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- Definition

Operational Service Agreement Period

+ References

No definition available.

+ Details

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- Definition

Purchases of leased in assets.

+ References

No definition available.

+ Details

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- Definition

Sale Leaseback Transaction, Number of Unrelated Third-Party Companies

+ References

No definition available.

+ Details

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- Definition

Sale leaseback transaction, number of vessels.

+ References

No definition available.

+ Details

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- Definition

Sale leaseback transaction number of vessels under construction.

+ References

No definition available.

+ Details

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- Definition

The amount of the gain recorded in connection with the transaction involving the sale of property to another party and the lease of the property back to the seller to be recognized in future periods.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 40
-Section 25
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6456126&loc=d3e49567-112750

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- Definition

Amount of cash inflow before closing and deferred financing costs received by a seller-lessee in a sale-leaseback recognized in investing activities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 40
-Section 55
-Paragraph 52
-URI http://asc.fasb.org/extlink&oid=28365400&loc=d3e51843-112757

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 40
-Section 55
-Paragraph 50
-URI http://asc.fasb.org/extlink&oid=28365400&loc=d3e51831-112757

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 40
-Section 55
-Paragraph 51
-URI http://asc.fasb.org/extlink&oid=28365400&loc=d3e51840-112757

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

The net book value of the asset(s) sold in connection with the sale of the property to another party and lease back to the seller.

+ References

+ Details

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- Details

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- Details

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Sale/ Leaseback Arrangements - Additional Information (Detail) $ in Thousands	1 Months Ended								3 Months Ended							12 Months Ended
	Nov. 30, 2014 USD ($)	Apr. 30, 2014 Vessel	Mar. 31, 2014 USD ($) Vessel	Oct. 31, 2012 USD ($)	Sep. 30, 2012 USD ($)	Jul. 31, 2009 Vessel Entity	Jun. 30, 2009 Vessel Entity	Mar. 31, 2006 USD ($) Lease Vessel	Mar. 31, 2015 USD ($) Vessel	Dec. 31, 2014 USD ($) Vessel	Sep. 30, 2014 USD ($) Vessel	Jun. 30, 2014 USD ($) Vessel	Mar. 31, 2014 USD ($) Vessel	Dec. 31, 2013 USD ($) Vessel	Sep. 30, 2013 USD ($) Vessel	Mar. 31, 2015 USD ($) Vessel	Mar. 31, 2014 USD ($) Vessel	Mar. 31, 2010 USD ($)	Mar. 31, 2006 Lease
Sale Leaseback Transaction [Line Items]
Number of vessels sold \| Vessel		2	3			6	6		1	3	1	1	4	4	2	6	10
Number of unrelated third-party companies \| Entity						1	1
Proceeds from sale								$ 76,500	$ 13,000	$ 78,200	$ 19,350	$ 13,400	$ 63,305	$ 141,900	$ 65,550	$ 123,950	$ 270,755	$ 101,800
Deferred gain																		39,600
Carrying value																		$ 62,200
Charter hire operating lease terms																		5 years
Repurchase of leased vessels																	$ 78,800
Number of vessels to be sold that are under construction \| Vessel								5
Number of Operating Lease \| Lease								5											5
Length of extension period, years																			8 years
Third and Fourth PSV
Sale Leaseback Transaction [Line Items]
Repurchase of leased vessels			$ 22,800
Fifth Vessel
Sale Leaseback Transaction [Line Items]
Repurchase of leased vessels	$ 11,200
First PSV
Sale Leaseback Transaction [Line Items]
Repurchase of leased vessels					$ 8,800
Second PSV
Sale Leaseback Transaction [Line Items]
Repurchase of leased vessels				$ 8,400