Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events - Additional Information (Detail)

v2.4.0.8
Subsequent Events - Additional Information (Detail) (Subsequent Event)
In Millions, unless otherwise specified
1 Months Ended
Jul. 31, 2013
USD ($)
Jul. 31, 2013
EUR (€)
Subsequent Event [Line Items]    
Scheduled delivery date of ships under construction First quarter of 2017 First quarter of 2017
Aggregate contract price of new ships $ 908.6 € 698.4
Export credit facility financing as percentage of contract price 80.00% 80.00%