Transactions with Related Parties (Details)	Jul. 27, 2015 USD ($)
M/V Dream Seas, M/V Gentle Seas, M/V Peaceful Seas and M/V Friendly Seas
Property Plant And Equipment [Line Items]
Aggregate value of vessels transferred	$ 63,200,000

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.

No definition available.

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