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Sale/ Leaseback Arrangements - Additional Information (Detail) (USD $)	3 Months Ended
	Jun. 30, 2014 Vessel
Sale Leaseback Transaction [Line Items]
Number of vessels sold	1
Proceeds from sale	$ 13,400,000
Deferred gain	9,400,000
Carrying value	$ 4,000,000
Lease expiration date	Quarter ending June 2021
Reacquisition percentage of original sales price	61.00%
Length of extension period, months	24 months

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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.

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

-Publisher FASB

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-Topic 840

-SubTopic 40

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The gross proceeds received from the asset(s) sold in connection with the transaction involving the sale of property to another party and the lease back to the seller.

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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.

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