Annual report pursuant to Section 13 and 15(d)

Future Commitments to Pay for Usage of Port Facilities (Detail)

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Future Commitments to Pay for Usage of Port Facilities (Detail) (Port Facility Commitments, USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Port Facility Commitments
 
Other Commitments [Line Items]  
2014 $ 28,589
2015 28,699
2016 29,976
2017 30,061
2018 21,372
Thereafter 62,072
Total $ 200,769