General form of registration statement for all companies including face-amount certificate companies

Long-Term Debt (Parenthetical) (Detail)

v2.4.0.8
Long-Term Debt (Parenthetical) (Detail)
In Millions, unless otherwise specified
Feb. 28, 2013
Dec. 31, 2012
USD ($)
Dec. 31, 2011
USD ($)
Dec. 31, 2012
Norwegian Epic Term Loan
EUR (€)
Dec. 31, 2011
Norwegian Epic Term Loan
EUR (€)
Sep. 30, 2013
Norwegian Pearl and Norwegian Gem Revolving Credit Facility
EUR (€)
Dec. 31, 2012
Norwegian Pearl and Norwegian Gem Revolving Credit Facility
EUR (€)
Dec. 31, 2011
Norwegian Pearl and Norwegian Gem Revolving Credit Facility
EUR (€)
Dec. 31, 2012
11.75% Senior Secured Notes
USD ($)
Dec. 31, 2011
11.75% Senior Secured Notes
USD ($)
Sep. 30, 2013
Pride of Hawai'i Loan
EUR (€)
Dec. 31, 2012
Pride of Hawai'i Loan
EUR (€)
Dec. 31, 2011
Pride of Hawai'i Loan
EUR (€)
Jan. 31, 2013
9.50% Senior Unsecured Notes
Dec. 31, 2012
9.50% Senior Unsecured Notes
USD ($)
Dec. 31, 2011
9.50% Senior Unsecured Notes
USD ($)
Apr. 30, 2013
Norwegian Jewel Term Loan
EUR (€)
Jan. 31, 2013
Norwegian Jewel Term Loan
USD ($)
Dec. 31, 2012
Norwegian Jewel Term Loan
USD ($)
Dec. 31, 2011
Norwegian Jewel Term Loan
USD ($)
Sep. 30, 2013
Pride Of America Hermes Loan
EUR (€)
Dec. 31, 2012
Pride Of America Hermes Loan
EUR (€)
Dec. 31, 2011
Pride Of America Hermes Loan
EUR (€)
Dec. 31, 2012
Senior Secured Revolving Credit Facility
USD ($)
Dec. 31, 2011
Senior Secured Revolving Credit Facility
USD ($)
Apr. 30, 2013
Breakaway One Loan
EUR (€)
Dec. 31, 2012
Breakaway One Loan
EUR (€)
Dec. 31, 2011
Breakaway One Loan
EUR (€)
Dec. 31, 2012
Breakaway Two Loan
EUR (€)
Dec. 31, 2011
Breakaway Two Loan
EUR (€)
Dec. 31, 2012
Breakaway Three Loan
EUR (€)
Sep. 30, 2013
Pride of America Commercial Loan
EUR (€)
Dec. 31, 2012
Pride of America Commercial Loan
EUR (€)
Dec. 31, 2011
Pride of America Commercial Loan
EUR (€)
Dec. 31, 2012
Norwegian Jewel Term Loan One
EUR (€)
Dec. 31, 2011
Norwegian Jewel Term Loan One
EUR (€)
Apr. 30, 2013
Norwegian Jade Term Loan
EUR (€)
Dec. 31, 2012
Norwegian Jade Term Loan
EUR (€)
Dec. 31, 2011
Norwegian Jade Term Loan
EUR (€)
Debt Instrument [Line Items]                                                                              
Debt, principal amount       € 662.9 € 662.9 € 624.0 € 624.0 € 624.0 $ 450.0 $ 450.0 € 308.1 € 308.1 € 308.1   $ 350.0 $ 350.0 € 126.1 $ 334.1 $ 334.1 $ 334.1 € 258.0 € 258.0 € 258.0 $ 750.0 $ 750.0 € 529.8 € 529.8 € 529.8 € 529.8 € 529.8 € 590.5 € 40.0 € 40.0 € 40.0 € 126.0 € 126.0 € 126.1 € 126.0 € 126.0
Debt, stated interest rate 5.00%               11.75% 11.75%       9.50% 9.50% 9.50%                                              
Debt, unamortized original issue discount   3.4 4.1           3.4 4.1                                                          
Debt, unamortized premium   $ 5.4                         $ 5.4