Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events - Additional Information (Detail)

v2.4.0.6
Subsequent Events - Additional Information (Detail)
In Millions, unless otherwise specified
Jan. 31, 2013
Norwegian Jewel Term Loan
USD ($)
Apr. 30, 2013
Subsequent Event
Breakaway One Loan
USD ($)
Apr. 30, 2013
Subsequent Event
Breakaway One Loan
EUR (€)
Apr. 30, 2013
Subsequent Event
Norwegian Jewel Term Loan
USD ($)
Apr. 30, 2013
Subsequent Event
Norwegian Jewel Term Loan
EUR (€)
Apr. 30, 2013
Subsequent Event
Norwegian Jade Term Loan
EUR (€)
Subsequent Event [Line Items]            
Amount borrowed   $ 528.0   $ 57.7    
Borrowing capacity $ 334.1   € 529.8   € 126.0 € 126.1
Term loan, maturity date   2025-04 2025-04     2016-04
Debt instrument, LIBOR rate           1.60%